VETERINARY CENTERS OF AMERICA INC
S-4, 1996-06-24
AGRICULTURAL SERVICES
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<PAGE>
 
     As filed with the Securities and Exchange Commission on June 24, 1996
                                                    Registration No. 333-

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                _______________

                                    FORM S-4
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                                _______________
                      VETERINARY CENTERS OF AMERICA, INC.
             (Exact Name of Registrant as Specified in Its Charter)

<TABLE> 
<S>                                  <C>                           <C> 
           DELAWARE                            0742                    95-4097995
(State or Other Jurisdiction        (Primary Standard Industrial    (I.R.S. Employer
of Incorporation or Organization)     Classification Code No.)     Identification No.)
</TABLE>

           3420 OCEAN PARK BOULEVARD, SANTA MONICA, CALIFORNIA  90405
                                 (310) 392-9599
    (Address, Including Zip Code, and Telephone Number, Including Area Code,
                  of Registrant's Principal Executive Offices)

                                ROBERT L. ANTIN
                           3420 OCEAN PARK BOULEVARD
                            SANTA MONICA, CALIFORNIA
                                 (310) 392-9599
         (Address, Including Zip Code, and Telephone Number, Including
                        Area Code, of Agent for Service)
                                _______________

                                   COPIES TO:


   C.N. Franklin Reddick III, Esq.               Andrew J. Beck, Esq.
        Julie M. Kaufer, Esq.                      Haythe & Curley
Troop Meisinger Steuber & Pasich, LLP              237 Park Avenue
      10940 Wilshire Boulevard                 New York, New York 10017
   Los Angeles, California 90024                   (212) 880-6000
          (310) 824-7000

                                 _____________

          APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:  As
soon as practicable after this Registration Statement is declared effective.

          If the securities being registered on this form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box.  

                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
===============================================================================================================================
                                                   Proposed Maximum      Proposed Maximum    
   Title of Each Class of       Amount to be     Offering Price Per     Aggregate Offering          Amount of Registration
 Securities to be Registered    Registered(1)          Unit(2)               Price(2)                       Fee(3)
- -------------------------------------------------------------------------------------------------------------------------------
<S>                             <C>              <C>                    <C>                          <C>
Common Stock                      3,411,434            $9.25              $31,555,764                     $28,292.51
- -------------------------------------------------------------------------------------------------------------------------------
</TABLE>

(1)  Based upon the maximum number of shares expected to be issued in connection
     with the transaction described herein.
(2)  Estimated  solely for the purposes of determining the registration fee in
     accordance with Rule 457(f)(1).  The proposed maximum offering price is
     based on the average of the high and low prices of Pet Practice Common
     Stock on June 18, 1996 on the Nasdaq National Market.  The proposed maximum
     aggregate offering price is based on the product of $9.25 (the proposed
     maximum aggregate offering price per unit) and 3,411,434 (the maximum
     number of shares expected to be issued in connection with the transaction
     described herein).
(3)  Pursuant to Rule 457(b), includes the fee of $16,392.31 previously paid in
     connection with the filing with the Commission of the preliminary proxy
     materials relating to the transactions described herein on April 30, 1996.

     The Registrant hereby amends this Registration Statement on such date or
dates as may be necessary to delay its effective date until the Registrant shall
file a further amendment which specifically states that this Registration
Statement shall thereafter become effective in accordance with Section 8(a) of
the Securities Act of 1933 or until the Registration Statement shall become
effective on such date as the Commission, acting pursuant to said Section 8(a),
may determine.
<PAGE>
 
                             CROSS REFERENCE SHEET

<TABLE>
<CAPTION>
   
ITEM NO.                        FORM S-4 ITEM NUMBER                               HEADING IN PROSPECTUS
<C>        <S>                                                               <C>
  1.       Forepart of Registration Statement and Outside Front Cover        Outside Front Cover Page
           Page of Prospectus

  2.       Inside Front and Outside Back Cover Pages of Prospectus           Inside Front Cover Page; Available
                                                                             Information; Table of Contents

  3.       Risk Factors, Ratio of Earnings to Fixed Charges and Other        Summary of Joint Proxy Statement/
           Information                                                       Prospectus; Risk Factors; The Merger;
                                                                             Comparative Per Share Data; Market Price
                                                                             Information; Selected Historical and
                                                                             Unaudited Pro Forma Financial Data;
                                                                             Unaudited Pro Forma Financial Data

   4.      Terms of the Transaction                                          Summary of Joint Proxy
                                                                             Statement/Prospectus; The Merger; The
                                                                             Merger Agreement; Comparison of
                                                                             Stockholders' Rights

   5.      Pro Forma Financial Information                                   Summary of Joint Proxy
                                                                             Statement/Prospectus; Unaudited Pro Forma
                                                                             Financial Data

   6.      Material Contracts With the Company Being Acquired                Summary of Joint Proxy
                                                                             Statement/Prospectus; The Merger

   7.      Additional Information Required for Reoffering by Persons                              *
           and Parties Deemed to be Underwriters

   8.      Interests of Named Experts and Counsel                            Legal Opinion; Experts

   9.      Disclosure of Commission Position on Indemnification For                               *
           Securities Act Liabilities

  10.      Information With Respect to S-3 Registrants                                            *

  11.      Incorporation of Certain Information by Reference                                      *

  12.      Information with Respect to S-2 or S-3 Registrants                                     *

  13.      Incorporation of Certain Information by Reference                                      *

  14.      Information With Respect to Registrants Other than S-3 or S-      Summary of Joint Proxy               
           2 Registrants                                                     Statement/Prospectus; The Merger;    
                                                                             Selected Historical and Unaudited Pro Forma Financial
                                                                             Data; Management's Discussion and Analysis of Financial
                                                                             Condition and Results of Operations of VCA; Business of
                                                                             VCA 
  15.      Information With Respect to S-3 Companies                                              *

  16.      Information With Respect to S-2 or S-3 Companies                                       *
</TABLE> 
<PAGE>
 
<TABLE> 
<CAPTION> 

ITEM NO.                  FORM S-4 ITEM NUMBER                                    HEADING IN PROSPECTUS
<C>        <S>                                                               <C>
  17.      Information With Respect to Other Than S-2 or S-3                 Summary of Joint Proxy
           Companies                                                         Statement/Prospectus; The Merger; Selected
                                                                             Historical and Unaudited Pro Forma
                                                                             Financial Data; Management's Discussion
                                                                             and Analysis of Financial Condition and
                                                                             Results of Operations of Pet Practice;
                                                                             Business of Pet Practice

  18.      Information if Proxies, Consents or Authorizations Are to be      The Meetings of Stockholders; The Merger
           Solicited

  19.      Information If Proxies, Consents of Authorizations Are Not                             *
           to be Solicited, or in an Exchange Offer
- -----------------------------
</TABLE>
*    None or not applicable.
<PAGE>
 
[VCA LOGO]



                                 June __, 1996


 Dear Stockholder:

     As most of you are aware, Veterinary Centers of America, Inc. ("VCA") has
 entered into an Agreement and Plan of Reorganization with The Pet Practice,
 Inc.  At our Annual Meeting on July 19, 1996, you will be asked to consider and
 approve the Merger and related items.  The attached Joint Proxy
 Statement/Prospectus presents the details of this proposed strategic
 combination.

     VCA's Board of Directors has unanimously approved the Merger and recommends
 that you vote FOR all proposals presented.

     Our Board believes that VCA through this Merger will be better able to
 compete effectively in the companion animal care market.  The addition of a
 large portfolio of strong, quality animal hospitals, the complementary
 geographic locations of these hospitals, the increased market capitalization,
 the opportunities for economies of scale and operating efficiencies as well as
 the potential expansion of VCA's veterinary diagnostic laboratory and pet food
 businesses should all result from the combination of VCA and The Pet Practice,
 Inc.  For further information regarding the potential benefits of the Merger, I
 urge that you read carefully the section "The Merger -- VCA's Reasons for the
 Merger; Recommendations of the VCA Board" in the attached document.

     Even if you plan to attend the Annual Meeting in person, please complete,
 sign and promptly return the enclosed proxy in the enclosed postage-prepaid
 envelope.


                                         Sincerely,



                                         Robert L. Antin
                                         Chief Executive Officer
<PAGE>
 
                             THE PET PRACTICE, INC.
                             1018 West Ninth Avenue
                      King of Prussia, Pennsylvania 19406


                                                                   June __, 1996



 To our stockholders:

     Your Board of Directors has approved an Agreement and Plan of
 Reorganization, dated as of March 21, 1996, whereby The Pet Practice, Inc.
 ("The Pet Practice") would become a wholly owned subsidiary of Veterinary
 Centers of America, Inc, ("VCA").  In the merger, each outstanding share of The
 Pet Practice common stock will be converted into the right to receive a
 fractional number of shares of VCA common stock.

     Consummation of the merger is subject to, among other things, the approval
 of the stockholders of The Pet Practice voting at a Special Meeting of the
 Stockholders on July 19, 1996.  Information concerning the Special Meeting, the
 merger transaction, and other matters concerning The Pet Practice and VCA is
 set forth in the accompanying proxy material.  Because of the importance of the
 merger to The Pet Practice and its stockholders, we urge you to read this
 material carefully.

     Your Board of Directors and management have studied the proposed merger and
 have recommended that it be approved by the stockholders of The Pet Practice.
 Your Board of Directors and management believe that, by combining the
 complementary strengths of The Pet Practice and VCA, the merger will enhance
 the business prospects of both companies and that stockholders will benefit
 from the opportunity for continued equity participation in the combined
 enterprise.

     Your Board of Directors unanimously recommends that you vote FOR the
 merger.  Since your vote is important at the Special Meeting of the
 Stockholders of The Pet Practice, we ask that you promptly complete, sign,
 date, and return the enclosed proxy in the enclosed envelope.

     We join with your Board of Directors in urging you to vote FOR the approval
 and adoption of the Agreement and Plan of Reorganization.

                    Sincerely,



                    STEPHEN F. NAGY      PETER J. COHEN
                    Chairman of the Board    President and Chief
                                         Executive Officer



                             YOUR VOTE IS IMPORTANT

     To ensure that your interests will be represented at the Meeting, whether
 or not you plan to attend, please complete, date, sign, and mail your proxy
 promptly in the enclosed postage-paid envelope.  Stockholders who attend the
 Meeting in person may revoke their proxies and vote in person if they desire.
<PAGE>
 
                      VETERINARY CENTERS OF AMERICA, INC.
                                  ___________

                    NOTICE OF ANNUAL MEETING OF STOCKHOLDERS
                                  ___________

                            To Be Held July 19, 1996

 TO THE STOCKHOLDERS OF VETERINARY CENTERS OF AMERICA, INC.:


     Notice is hereby given that the 1996 Annual Meeting of Stockholders (the
 "VCA Annual Meeting") of Veterinary Centers of America, Inc. ("VCA") will be
 held at VCA's offices at 3420 Ocean Park Boulevard, Suite 1000, Santa Monica,
 California 90405, on July 19, 1996, at 10:00 a.m., Los Angeles time, for the
 following purposes:

     1.  To approve the issuance of shares of Common Stock, par value $.001 per
 share, of VCA (the "VCA Common Stock"), pursuant to the Agreement and Plan of
 Reorganization, dated as of March 21, 1996, by and among VCA, Golden Merger
 Corporation, a Delaware corporation and a wholly owned subsidiary of VCA
 ("Merger Corp."), and The Pet Practice, Inc., a Delaware corporation ("Pet
 Practice"), pursuant to which, among other things, (i) Pet Practice will be
 merged with and into Merger Corp., which will be the surviving corporation, and
 Pet Practice will become a wholly owned subsidiary of VCA (the "Merger") and
 (ii) each outstanding share of Common Stock, par value $.01 per share, of Pet
 Practice will be converted into the right to receive a fraction of a share of
 VCA Common Stock determined by reference to an Exchange Ratio;

     2.  To elect two Class II Directors to the Board of Directors of VCA, each
 to hold office for three years and until their respective successors are
 elected;

     3.  To amend VCA's Certificate of Incorporation to increase the number of
 authorized shares of VCA Common Stock and VCA Preferred Stock;

     4.  To adopt the VCA 1996 Stock Incentive Plan;

     5.  To adopt the VCA 1996 Employee Stock Purchase Plan; and

     6.  To transact such other business as may properly come before the
 meeting and any adjournment(s) thereof.

     Only holders of record of the VCA Common Stock at the close of business on
 May 20, 1996 are entitled to notice of and to vote at the VCA Annual Meeting
 and adjournments or postponements thereof.

     All stockholders are cordially invited to attend the meeting in person.
 However, to ensure your representation at the meeting, you are urged to mark,
 sign and return the enclosed Proxy as promptly as possible in the postage-
 prepaid envelope enclosed for that purpose.  Any stockholder attending the
 meeting may vote in person, even though he or she has returned a Proxy.

                                         By Order of the Board of Directors


                                         Arthur J. Antin
                                         Secretary

 3420 Ocean Park Boulevard
 Santa Monica, CA 90405
 June __, 1996

 IN ORDER TO ENSURE YOUR REPRESENTATION AT THE MEETING, YOU ARE REQUESTED TO
 COMPLETE, DATE, AND SIGN THE ACCOMPANYING PROXY AS PROMPTLY AS POSSIBLE AND
 RETURN IT IN THE ENCLOSED ENVELOPE.
<PAGE>
 
                             THE PET PRACTICE, INC.
                             1018 West Ninth Avenue
                      King of Prussia, Pennsylvania 19406

                   Notice of Special Meeting of Stockholders
                            to be held July 19, 1996


                                                   King of Prussia, Pennsylvania
                                                                   June __, 1996


 To the Holders of Common Stock of
 The Pet Practice, Inc.:

     A Special Meeting of the Stockholders of The Pet Practice, Inc., a Delaware
 corporation ("The Pet Practice"), will be held at the Park Ridge Hotel, 480
 North Gulph Road, King of Prussia, Pennsylvania, on July 19, 1996, at 2:00
 p.m., for the following purposes, as more fully described in the accompanying
 Joint Proxy Statement/Prospectus.

     1.   To consider and act upon a proposal to approve and adopt the Agreement
 and Plan of Reorganization (the "Merger Agreement") dated as of March 21, 1996,
 by and among Veterinary Centers of America, Inc., a Delaware corporation
 ("VCA"), Golden Merger Corporation, a Delaware corporation and a wholly owned
 subsidiary of VCA ("Merger Corp."), and The Pet Practice (a copy of the Merger
 Agreement is attached as Appendix A to the accompanying Joint Proxy
                          -------- -                                
 Statement/Prospectus), providing for the merger of The Pet Practice with and
 into Merger Corp., whereupon The Pet Practice will become a wholly owned
 subsidiary of VCA.

     2.   To transact such other business as may properly come before the
 Meeting or any adjournment or postponements thereof.

     The Board of Directors has fixed the close of business on May 20, 1996 as
 the record date for the determination of stockholders entitled to notice of,
 and to vote at, the Meeting.  A list of the stockholders entitled to vote at
 the Meeting may be examined at The Pet Practice's executive offices located in
 King of Prussia, Pennsylvania, during the ten-day period preceding the Meeting.

                         By Order of the Board of Directors



                         Warren D. Barratt
                         Secretary



         YOUR ATTENTION IS DIRECTED TO THE ACCOMPANYING PROXY STATEMENT

     You are cordially invited to attend the Meeting in person.  If you do not
 expect to be present, please promptly mark, sign, and date the enclosed form of
 Proxy and mail it in the enclosed return envelope, which requires no postage if
 mailed in the United States, so that your vote can be recorded.
<PAGE>
 
                             JOINT PROXY STATEMENT

                       FOR ANNUAL MEETING OF STOCKHOLDERS
                     OF VETERINARY CENTERS OF AMERICA, INC.
                                      AND
           SPECIAL MEETING OF STOCKHOLDERS OF THE PET PRACTICE, INC.
                            TO BE HELD JULY 19, 1996
                                _______________

                      VETERINARY CENTERS OF AMERICA, INC.
                                   PROSPECTUS
                                 ______________

     This Joint Proxy Statement/Prospectus is being furnished to holders of
common stock of Veterinary Centers of America, Inc., a Delaware corporation
("VCA"), in connection with the solicitation of proxies by the Board of
Directors of VCA (the "VCA Board") for use at the 1996 Annual Meeting of
Stockholders (the "VCA Annual Meeting"), to be held on July 19, 1996 at VCA's
offices at 3420 Ocean Park Boulevard, Suite 1000, Santa Monica, California,
commencing at 10:00 a.m., local time, and at any adjournments or postponements
thereof.

     This Joint Proxy Statement/Prospectus is also being furnished to holders of
common stock, par value $.01 per share (the "Pet Practice Common Stock"), of The
Pet Practice, Inc., a Delaware corporation ("Pet Practice"), in connection with
the solicitation of proxies by the Board of Directors of Pet Practice (the "Pet
Practice Board") for use at the Special Meeting of Stockholders of Pet Practice
(the "Pet Practice Special Meeting") to be held on July 19, 1996, at the Park
Ridge Hotel, 480 North Gulph Road, King of Prussia, Pennsylvania, commencing at
2:00 p.m., local time, and at any adjournments or postponements thereof.

     VCA has filed a registration statement on Form S-4 (together with all
amendments, exhibits and schedules thereto, the "Registration Statement") under
the Securities Act of 1933, as amended (the "Act"), relating to shares of the
VCA Common Stock that are proposed to be issued in connection with the merger
(the "Merger") of Pet Practice with and into Golden Merger Corporation, a
Delaware corporation and a wholly owned subsidiary of VCA ("Merger Corp."),
pursuant to the Agreement and Plan of Reorganization, dated as of March 21,
1996, among VCA, Merger Corp. and Pet Practice (the "Merger Agreement") in
exchange for outstanding securities of Pet Practice. Pursuant to the Merger
Agreement, each share of Pet Practice Common Stock will be converted into a
fraction of a share of VCA Common Stock based upon the Exchange Ratio described
on page __ hereof under the caption "The Merger Agreement -- Consideration to be
Received in the Merger." Based upon the closing sale price of the VCA Common
Stock ($___) on the Nasdaq National Market on June __, 1996 (the last
practicable day before printing this Joint Proxy Statement/Prospectus) each
share of Pet Practice Common Stock will be converted into the right to receive
___ shares of VCA Common Stock in the Merger. The actual Exchange Ratio will be
determined by reference to the average of the closing sale prices of the VCA
Common Stock over the 20 trading days ending on the third trading day prior to
the day of the VCA Annual Meeting and the Pet Practice Special Meeting (the
"Average Price") and could result in a greater or lower number of shares of VCA
Common Stock issued in the Merger than reflected in the prior sentence.

     This Joint Proxy Statement/Prospectus also constitutes the Prospectus of
VCA filed as part of the Registration Statement. This Joint Proxy
Statement/Prospectus and the accompanying form of proxy are first being mailed
to the respective stockholders of VCA and Pet Practice on or about June __,
1996. All information contained in this Joint Proxy Statement/Prospectus
concerning VCA has been furnished by VCA and information with respect to Pet
Practice has been furnished by Pet Practice. Information contained in this Joint
Proxy Statement/Prospectus concerning Pets' Rx, Inc. has been furnished by Pets'
Rx, Inc.

     SEE "RISK FACTORS" FOR CERTAIN INFORMATION THAT SHOULD BE CONSIDERED BY VCA
AND PET PRACTICE STOCKHOLDERS COMMENCING ON PAGE 23 AND ENDING ON PAGE 28 OF
THIS JOINT PROXY STATEMENT/PROSPECTUS.

     THE SECURITIES TO BE ISSUED PURSUANT TO THIS JOINT PROXY
STATEMENT/PROSPECTUS HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE COMMISSION OR
ANY STATE SECURITIES COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS
JOINT PROXY STATEMENT/PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

     This Joint Proxy Statement/Prospectus does not cover any resales of the VCA
Common Stock to be received by the stockholders of Pet Practice upon the
consummation of the transactions contemplated by the Merger Agreement, and no
person is authorized to make any use of this Joint Proxy Statement/Prospectus in
connection with any such resales.

      The date of this Joint Proxy Statement/Prospectus is June __, 1996
            ________________________________________________________
<PAGE>
 
     No person has been authorized to give any information or to make any
representations not contained herein and the documents incorporated by reference
herein, and any information or representation not contained herein or therein
must not be relied upon as having been authorized by VCA, Merger Corp. or Pet
Practice. Neither the delivery hereof nor any distribution of the securities
being offered pursuant hereto shall, under any circumstances, create an
implication that there has been no change in the information set forth herein
since the date of this Joint Proxy Statement/Prospectus. This Joint Proxy
Statement/Prospectus does not constitute an offer or solicitation by anyone in
any state in which such offer or solicitation is not authorized or in which the
person making such offer or solicitation is not qualified to do so or to anyone
to whom it is unlawful to make such offer or solicitation.

                                       2
<PAGE>
 
                             AVAILABLE INFORMATION

     VCA and Pet Practice are each subject to the informational requirements of
the Exchange Act, and in accordance therewith file reports, proxy statements and
other information with the Commission. Such reports, proxy statements and other
information filed with the Commission can be inspected and copied at the public
reference facilities maintained by the Commission at Room 1024, 450 Fifth
Street, N.W., Judiciary Plaza, Washington, D.C. 20549 and at the following
Regional Offices of the Commission: Citicorp Center, 500 West Madison Street,
Suite 1400, Chicago, Illinois 60661 and 7 World Trade Center, Suite 1300, New
York, New York 10048. Copies of such material can be obtained at prescribed
rates from the Public Reference Section of the Commission at 450 Fifth Street,
N.W., Judiciary Plaza, Washington, D.C. 20549. VCA Common Stock and Pet Practice
Common Stock are listed on the Nasdaq National Market and such material may also
be inspected at the offices of the National Association of Securities Dealers,
Inc., 1735 K Street, N.W., Washington, D.C. 20006.

     VCA has filed with the Commission the Registration Statement relating to
shares of VCA Common Stock that are proposed to be issued in connection with the
Merger to holders of Pet Practice Common Stock. See "THE MERGER AGREEMENT--
Consideration to be Received in the Merger." This Joint Proxy
Statement/Prospectus does not contain all of the information set forth in the
Registration Statement filed by VCA with the Commission, certain portions of
which are omitted in accordance with the rules and regulations of the
Commission. Such additional information is available for inspection and copying
at the offices of the Commission. Statements contained in this Joint Proxy
Statement/Prospectus or in any document incorporated into this Joint Proxy
Statement/Prospectus by reference as to the contents of any contract or other
document referred to herein or therein are not necessarily complete, and in each
instance reference is made to the copy of such contract or other document filed
as an exhibit to the Registration Statement or such other document.

                                       3
<PAGE>
 
                               TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                                              PAGE
<S>                                                                                           <C>
 AVAILABLE INFORMATION..................................................................        3
                                                                                                             
 SUMMARY OF JOINT PROXY STATEMENT/PROSPECTUS............................................        8            
    The Companies.......................................................................        8            
    Meetings of Stockholders............................................................        9            
    The Merger..........................................................................       10            
                                                                                                             
 SELECTED HISTORICAL AND UNAUDITED PRO FORMA FINANCIAL DATA.............................       17            
                                                                                                             
 MARKET PRICE INFORMATION...............................................................       21            
                                                                                                             
 COMPARATIVE PER SHARE DATA.............................................................       22            
                                                                                                             
 RISK FACTORS...........................................................................       23            
    Pending Transactions................................................................       23            
    Anticipated Effects of Acquisitions.................................................       24            
    Rapid Expansion and Management of Growth............................................       24            
    Dependence on Acquisitions for Future Growth........................................       25            
    Leverage............................................................................       25            
    Risks Associated with Intangible Assets.............................................       25            
    Guaranteed Payments.................................................................       26            
    Seasonality and Fluctuating Quarterly Results.......................................       26            
    Dependence on Key Management........................................................       26            
    Joint Ventures......................................................................       27            
    Competition.........................................................................       27            
    Government Regulation...............................................................       27            
    Anti-takeover Effect................................................................       27            
    Impact of Shares Eligible for Future Sale...........................................       28            
    Possible Volatility of Stock Price..................................................       28            
                                                                                                             
 THE MEETINGS OF STOCKHOLDERS...........................................................       29            
    General.............................................................................       29            
    Matters to be Considered at the Meetings............................................       29            
    Record Dates; Voting Rights; Votes Required for Approval............................       30            
    Proxies.............................................................................       31            
    No Dissenters' Rights...............................................................       32            
    Proxy Solicitation..................................................................       32            
                                                                                                             
 THE MERGER.............................................................................       32            
    Background of the Merger............................................................       32            
    VCA's Reasons for the Merger; Recommendations of the VCA Board......................       34            
    Pet Practice's Reasons for the Merger; Recommendations of the Pet Practice Board....       36            
    Opinions of Financial Advisors......................................................       37            
    Interests of Certain Persons in the Merger..........................................       43            
    Accounting Treatment................................................................       44            
    Certain Federal Income Tax Consequences.............................................       44            
    Resale Restrictions.................................................................       45            
    Regulatory Matters..................................................................       46            
    Nasdaq National Market..............................................................       46             
</TABLE>

                                       4
<PAGE>
 
<TABLE>
<CAPTION> 
                                                                                            PAGE
<S>                                                                                         <C>
 THE MERGER AGREEMENT...................................................................     47
    General.............................................................................     47              
    Consideration to be Received in the Merger..........................................     47              
    Exchange of Shares..................................................................     48              
    Representations and Warranties......................................................     49              
    Certain Covenants...................................................................     50              
    Conditions to the Merger............................................................     51              
    Termination of the Merger Agreement.................................................     52              
    Amendment and Waiver................................................................     53              
                                                                                                             
 BUSINESS OF VCA........................................................................     53              
    General.............................................................................     53              
    Recent Developments.................................................................     53              
    The Companion Animal Health Care Industry...........................................     54              
    Business Strategy...................................................................     55              
    Acquisition Strategy................................................................     56              
    Operations and Marketing............................................................     60              
    Fees and Sources of Payment.........................................................     60              
    Systems.............................................................................     60              
    Competition.........................................................................     60              
    Joint Venture Agreements............................................................     61              
    Government Regulation...............................................................     61              
    Employees...........................................................................     62              
    Properties..........................................................................     62              
    Legal Proceedings...................................................................     62              
    Executive Officers and Directors of VCA.............................................     63
    Board Meetings and Committees.......................................................     64
    Compensation of Directors...........................................................     64            
    Compensation Committee Interlocks and Insider Participation.........................     65              
    Report of the Compensation Committee................................................     65            
    Summary Compensation Table..........................................................     67            
    Option Grants in Last Fiscal Year...................................................     68            
    Aggregated Option Exercises in Last Fiscal Year and Fiscal Year End Option Values...     68
    Employment Agreements...............................................................     69              
    Compliance with Section 16(a) of the Securities Exchange Act........................     69              
    Stock Performance Graph.............................................................     70              
    Security Ownership of Certain Beneficial Owners and Management of VCA...............     71              
 
 MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
  OF VCA................................................................................     72

 BUSINESS OF PET PRACTICE...............................................................     84              
    General.............................................................................     84              
    The Veterinary Services Industry....................................................     84              
    Strategy............................................................................     85              
    Patient Services....................................................................     85              
    Network Development.................................................................     86              
    Marketing...........................................................................     87              
    Clinical Leadership.................................................................     88              
    Employer of Choice Programs.........................................................     88              
    Management Information Systems......................................................     88              
    Competition.........................................................................     89              
    Licensing and Certification; Professional Associations; Regulation..................     89              
    Trademarks..........................................................................     90              
    Employees...........................................................................     90              
    Insurance...........................................................................     90              
    Properties..........................................................................     91               
 </TABLE>

                                       5
<PAGE>
 
<TABLE>
<CAPTION> 
                                                                                           PAGE
<S>                                                                                        <C>
    Legal Proceedings...................................................................    91
    Executive Officers of Pet Practice..................................................    91               
    Security Ownership of Certain Beneficial Owners and Management of Pet Practice......    97                 
                                                                                                             
 MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND                                             
 RESULTS OF OPERATIONS OF PET PRACTICE..................................................    98                
    Overview............................................................................    98               
    Seasonality.........................................................................    99               
    Results of Operations...............................................................   100               
    Results of Operations for the Thirteen Weeks Ended April 3, 1996 Compared to                             
   the Thirteen Weeks Ended March 29, 1995..............................................   100
    Results of Operations for the Year Ended January 3, 1996 Compared to                                     
   the Year Ended December 28, 1994.....................................................   101               
    Results of Operations for the Year Ended December 28, 1994 Compared to                                   
   the Period October 27, 1993 (Commencement of Operations)                                                  
   through December 29, 1993............................................................   102               
    Liquidity and Capital Resources.....................................................   103               
                                                                                                             
 UNAUDITED PRO FORMA FINANCIAL DATA.....................................................   105               
                                                                                                             
 DESCRIPTION OF VCA CAPITAL STOCK.......................................................   126               
    Common Stock........................................................................   126               
    Redeemable Warrants.................................................................   126               
    VCA Preferred Stock.................................................................   127               
    VRI Warrants........................................................................   127               
    Debentures..........................................................................   127               
    Anti-takeover Provisions............................................................   127               
    Section 203 of the DGCL.............................................................   128               
    Transfer Agent......................................................................   128               
                                                                                                             
 COMPARISON OF STOCKHOLDERS' RIGHTS.....................................................   128               
                                                                                                             
 ELECTION OF CLASS II DIRECTORS.........................................................   130               
    Information with Respect to Nominees, Continuing Directors and Executive Officers...   130               
                                                                                                             
 PROPOSAL TO APPROVE AN AMENDMENT TO THE CERTIFICATE OF INCORPORATION OF VCA                                 
 TO INCREASE THE AUTHORIZED NUMBER OF SHARES OF VCA COMMON STOCK AND                                         
 VCA PREFERRED STOCK....................................................................   131               
    The Amendment.......................................................................   131               
    Certain Effects of the Proposed Amendment...........................................   132               
    Recommendation and Vote.............................................................   132               
                                                                                                             
 PROPOSAL TO APPROVE THE ADOPTION OF THE VCA 1996 STOCK INCENTIVE PLAN..................   132               
    Introduction........................................................................   132               
    Purpose.............................................................................   133               
    Administration......................................................................   133               
    Eligibility and Nondiscretionary Grants.............................................   133               
    Terms of Options....................................................................   133               
    Adjustments upon Changes in Capitalization..........................................   134               
    Amendment and Termination of the 1996 Plan..........................................   134               
    Effect of Section 16(b) of the Exchange Act.........................................   134               
    Federal Income Tax Consequences.....................................................   135               
    Required Vote.......................................................................   136

                
 
</TABLE>

                                       6
<PAGE>
 
<TABLE>
<CAPTION> 
                                                                                           PAGE
<S>                                                                                        <C>
 PROPOSAL TO APPROVE THE ADOPTION OF THE VCA 1996 EMPLOYEE STOCK PURCHASE PLAN..........   136
    Summary of Plan.....................................................................   136               
    Required Vote.......................................................................   137               
                                                                                                             
 PROPOSALS OF STOCKHOLDERS..............................................................   137               
                                                                                                             
 INDEPENDENT PUBLIC ACCOUNTANTS.........................................................   137               
                                                                                                             
 LEGAL OPINION..........................................................................   137               
                                                                                                             
 EXPERTS................................................................................   137               
                                                                                                             
 OTHER MATTERS..........................................................................   137               
                                                                                                             
 ANNUAL REPORT TO STOCKHOLDERS..........................................................   138               
                                                                                                             
 INDEX TO FINANCIAL STATEMENTS..........................................................   F-1                
</TABLE>

 APPENDICES

 Appendix A  Agreement and Plan of Reorganization
 Appendix B  Opinion of National Westminster Bank PLC
 Appendix C  Opinion of Smith Barney Inc.
 Appendix D  VCA 1996 Stock Incentive Plan
 Appendix E  VCA 1996 Employee Stock Purchase Plan
 Appendix F  Exchange Ratios

                                       7
<PAGE>
 
                  SUMMARY OF JOINT PROXY STATEMENT/PROSPECTUS

     The following is a summary of certain information contained elsewhere in
this Joint Proxy Statement/Prospectus and is qualified in its entirety by
reference to the more detailed information and financial statements and notes
thereto appearing elsewhere in this Joint Proxy Statement/Prospectus and in the
Appendices hereto. Unless the context otherwise requires, all references herein
to "VCA" refer to Veterinary Centers of America, Inc. and its consolidated
subsidiaries, and all references to "Pet Practice" refer to The Pet Practice,
Inc. and its consolidated subsidiaries. This Joint Proxy Statement/Prospectus
contains forward looking statements, which are inherently uncertain. Actual
results may differ from those discussed in such forward looking statements for
the reasons, among others, discussed in "Risk Factors."

 
                                            THE COMPANIES

VCA ............  VCA was founded in 1986 and is a leading companion animal
                  health care company. VCA has established a premier position in
                  the animal hospital and veterinary diagnostic laboratory
                  segments and has an emerging presence in the premium pet food
                  segment. VCA operates the largest network of free-standing,
                  full service animal hospitals in the country. This network has
                  grown from one animal hospital in 1988 to 80 full service
                  animal hospitals located in 16 states at June 20, 1996. As a
                  leader in the industry, VCA also operates one of the largest
                  networks of veterinary-exclusive laboratories in the nation
                  with three full service laboratories and eight STAT (quick
                  response) laboratories servicing over 8,000 animal hospitals
                  located in 40 states. VCA also markets both a life-stage and a
                  therapeutic line of premium pet food through Vet's Choice, a
                  joint venture with Heinz Pet Products, an affiliate of H.J.
                  Heinz Company. The mailing address of VCA's principal
                  executive offices is 3420 Ocean Park Boulevard, Suite 1000,
                  Santa Monica, California 90405; its telephone number is (310)
                  392-9599. See "BUSINESS OF VCA."

Pet Practice ...  Pet Practice owns and operates veterinary care group
                  practices. Pet Practice is one of the largest and fastest
                  growing providers of companion animal veterinary care in the
                  United States. Pet Practice typically establishes
                  comprehensive networks that include day clinics and 24-hour
                  emergency/acute care clinics. In certain markets, Pet Practice
                  also provides pet boarding and grooming services. Pet Practice
                  believes it currently is one of the few companies pursuing a
                  national strategy of consolidating veterinary care group
                  practices in an effort to create comprehensive veterinary care
                  networks. Pet Practice currently operates 84 veterinary
                  clinics in 11 states. Of those 84 clinics, 54 operate in three
                  established networks, 18 operate in one network in the
                  integration stage and 12 operate in two networks still in the
                  development stage. All of Pet Practice's services are provided
                  on a fee-for-service basis and customers generally remit
                  payment at the time services are delivered. The mailing
                  address of Pet Practice's principal executive offices is 1018
                  West Ninth Avenue, King of Prussia, Pennsylvania 19406; its
                  telephone number is (610) 992-8800. See "BUSINESS OF PET
                  PRACTICE."

                                       8
<PAGE>
 
                        MEETINGS OF STOCKHOLDERS

VCA ............  The 1996 Annual Meeting of Stockholders of VCA (the "VCA
                  Annual Meeting") will be held on July 19, 1996 at 10:00 a.m.
                  (Pacific Daylight Time), at VCA's offices, 3420 Ocean Park
                  Boulevard, Suite 1000, Santa Monica, California. The purpose
                  of the VCA Annual Meeting is to consider and vote on the
                  following proposals: (i) the issuance of shares of VCA Common
                  Stock in exchange for shares of Pet Practice Common Stock
                  pursuant to the Merger Agreement, (ii) to elect two Class II
                  Directors to the VCA Board, (iii) an amendment to VCA's
                  Certificate of Incorporation to increase the number of
                  authorized shares of VCA Common Stock from 30,000,000 shares
                  to 75,000,000 shares and to increase the number of authorized
                  shares of VCA Preferred Stock from 1,000,000 shares to
                  2,000,000 shares, (iv) to adopt the VCA 1996 Stock Incentive
                  Plan, (v) to adopt the VCA 1996 Employee Stock Purchase Plan,
                  and (vi) such other matters as may properly be brought before
                  the VCA Annual Meeting.

                  Holders of record of VCA Common Stock at the close of business
                  on May 20, 1996 (the "VCA Record Date") will be entitled to
                  notice of and to vote at the VCA Annual Meeting. On the VCA
                  Record Date, there were 13,179,882 shares of VCA Common Stock
                  outstanding and entitled to vote. Each share of VCA Common
                  Stock is entitled to one vote on each matter that is properly
                  presented to the stockholders for a vote at the VCA Annual
                  Meeting. Under the Delaware General Corporation Law (the
                  "DGCL"), the affirmative vote of the holders of a majority of
                  the shares of VCA Common Stock present at the VCA Annual
                  Meeting and entitled to vote is required to approve the
                  issuance of shares of VCA Common Stock in exchange for shares
                  of Pet Practice Common Stock pursuant to the Merger Agreement
                  (the "Merger Proposal"). See "THE MEETINGS OF STOCKHOLDERS --
                  Record Dates; Voting Rights; Votes Required for Approval."

                  Proxies (including revocations of previously delivered
                  proxies) may be delivered (i) by United States mail or courier
                  service to Continental Stock Transfer & Trust Company, 2
                  Broadway, 19th Floor, New York, New York 10004, or (ii) by
                  facsimile to (212) 509-5150.

                  As of the VCA Record Date, directors and executive officers of
                  VCA and their affiliates as a group beneficially owned 810,017
                  shares of VCA Common Stock (excluding shares subject to
                  exercisable options), or approximately 6.1% of those shares
                  outstanding as of such date.

Pet Practice ...  The Special Meeting of Stockholders of Pet Practice (the "Pet
                  Practice Special Meeting" and collectively with the VCA Annual
                  Meeting, the "Stockholder Meetings") will be held on July 19,
                  1996 at 2:00 p.m. (Eastern Daylight Time) at the Park Ridge
                  Hotel, 480 North Gulph Road, King of Prussia, Pennsylvania.
                  The purpose of the Pet Practice Special Meeting is to consider
                  and vote on (i) a proposal to approve and adopt the Merger
                  Agreement, and (ii) such other matters as may properly be
                  brought before the Pet Practice Special Meeting.

                                       9
<PAGE>
 
                  Holders of record of Pet Practice Common Stock at the close of
                  business on May 20, 1996 (the "Pet Practice Record Date") will
                  be entitled to notice of and to vote at the Pet Practice
                  Special Meeting. On the Pet Practice Record Date, there were
                  8,623,720 shares of Pet Practice Common Stock outstanding and
                  entitled to vote. Each share of Pet Practice Common Stock is
                  entitled to one vote on each matter that is properly presented
                  to stockholders for a vote at the Pet Practice Special
                  Meeting. Under the DGCL, the affirmative vote of the holders
                  of a majority of the outstanding shares of Pet Practice Common
                  Stock is required to approve and adopt the Merger Agreement.
                  See "THE MEETINGS OF STOCKHOLDERS -- Record Dates; Voting
                  Rights; Votes Required for Approval."
 
                  Proxies (including revocations of previously delivered
                  proxies) may be delivered (i) by United States mail or courier
                  service to American Stock Transfer & Trust Company, 40 Wall
                  Street, New York, New York 10005, or (ii) by facsimile to
                  (718) 921-8331.

                  As of the Pet Practice Record Date, directors and executive
                  officers of Pet Practice and their affiliates as a group
                  beneficially owned 3,901,567 shares of Pet Practice Common
                  Stock (excluding shares subject to exercisable options), or
                  approximately 45.2% of those shares outstanding as of such
                  date.

                  In connection with the Merger Agreement, a holder of 41.8% of
                  the outstanding shares of Pet Practice Common Stock has
                  executed and delivered an irrevocable proxy to VCA to vote its
                  shares in favor of the Merger. See "THE MEETINGS OF
                  STOCKHOLDERS -- Record Dates; Voting Rights; Votes Required
                  for Approval."

                                  THE MERGER

Conversion of 
   Securities ..  Upon consummation of the transactions contemplated by the
                  Merger Agreement, (a) Pet Practice will be merged with and
                  into Merger Corp., which will result in Pet Practice becoming
                  a wholly owned subsidiary of VCA, (b) each issued and
                  outstanding share of Pet Practice Common Stock will be
                  converted into the right to receive shares of VCA Common Stock
                  by reference to an Exchange Ratio, and (c) each outstanding
                  option of Pet Practice will be assumed by VCA in accordance
                  with the Merger Agreement and will be exercisable upon the
                  same terms and conditions as under the applicable agreement or
                  plan representing such option, except that each option shall
                  be exercisable for that number of shares of VCA Common Stock
                  (to the nearest whole share) into which the number of shares
                  of Pet Practice Common Stock subject to such option
                  immediately prior to the Effective Time (as defined below)
                  would be converted under the Merger Agreement and the exercise
                  price per share of each such option shall be adjusted in the
                  manner set forth in the Merger Agreement.

                                       10
<PAGE>
 
Conversion (cont.) .... The Exchange Ratio will be determined by reference to
                        the average closing price of VCA Common Stock over the
                        20 trading days ending on the third trading day before
                        the meetings at which the stockholders of VCA and Pet
                        Practice consider the merger (the "Average Price"). If
                        the Average Price of the VCA Common Stock ranges from
                        $25 to $30 per share, the Exchange Ratio shall be
                        determined by dividing $10 by the Average Price of the
                        VCA Common Stock, resulting in a valuation of $10 per
                        share of Pet Practice Common Stock throughout the range.

                        If the Average Price of the VCA Common Stock is less
                        than $24 per share, the Exchange Ratio will be increased
                        (from 0.395 at $24 per share) by 0.005 for each dollar
                        of such reduction down to $18.50 per share of VCA Common
                        Stock, and if the Average Price of VCA Common Stock is
                        more than $31 per share, the Exchange Ratio shall be
                        reduced (from 0.3350 at $31 per share) by 0.005 for each
                        dollar of such increase up to $49.00 per share.

                        No further adjustment shall be made if the Average Price
                        of VCA Common Stock shall be less than $18.50. If the
                        Average Price of the VCA Common Stock is greater than
                        $49.00, the Exchange Ratio shall be determined by
                        dividing $12.005 by the Average Price. In all cases, a
                        proportionate reduction or increase, as the case may be,
                        shall be made if the price of VCA Common Stock is less
                        than a round dollar.

                        Based on the foregoing, the resulting valuation of the
                        merger consideration per share of Pet Practice Common
                        Stock will range from $7.82 per share (if the Average
                        Price is $18.50 per share) to $12.005 per share (if the
                        Average Price is $49.00 per share).

                        By way of illustration (i) at $___ per share of VCA
                        Common Stock (the closing price of the VCA Common Stock
                        on June ___, 1996, the last practicable date before the
                        printing of this Joint Proxy Statement/Prospectus), the
                        Exchange Ratio would be ___, resulting in a valuation of
                        $___ per share of Pet Practice Common Stock, (ii) at $20
                        per share of VCA Common Stock, the Exchange Ratio would
                        be 0.4150, resulting in a valuation of $8.30 per share
                        of Pet Practice Common Stock, and (iii) at $28.00 per
                        share of VCA Common Stock, the Exchange Ratio would be
                        0.3571, resulting in a valuation of $10.00 per share of
                        Pet Practice Common Stock.

                        Based upon the number of shares of Pet Practice Common
                        Stock outstanding at the Pet Practice Record Date and
                        upon the closing price of VCA Common Stock ($_____) on
                        the Nasdaq National Market on June __, 1996 (the last
                        practicable date before the printing of this Joint Proxy
                        Statement/Prospectus), the former Pet Practice
                        stockholders will hold, immediately after the Merger,
                        approximately ___% of the aggregate number of
                        outstanding shares of VCA Common Stock.

                        Pet Practice and VCA have established a phone number
                        which may be called by VCA stockholders and Pet Practice
                        stockholders to obtain more current estimates of the
                        Exchange Ratio based upon the foregoing. Please call
                        (800) 223-2064 for a current estimate of the Exchange
                        Ratio based upon more recent market closing prices of
                        the VCA Common Stock. See "THE MERGER AGREEMENT --
                        Consideration to be Received in the Merger."

                                       11
<PAGE>
 
Fractional Shares .......  Fractional shares of VCA Common Stock will not be
                           issued in connection with the Merger. A holder
                           otherwise entitled to a fractional share will be paid
                           cash in lieu of such fractional share in an amount
                           equal to the product of the Average Price (as
                           defined) of a share of VCA Common Stock multiplied by
                           the fraction of a share to which such holder would
                           otherwise be entitled. See "THE MERGER AGREEMENT --
                           Consideration to be Received in the Merger."

Concurrent Transactions... VCA's growth strategy is dependent principally on its
                           ability to acquire existing animal hospitals and
                           veterinary diagnostic laboratories. During the period
                           from January 1, 1996 to June 20, 1996, VCA acquired
                           (i) Pets' Rx, the owner and operator of 16 animal
                           hospitals, (ii) three veterinary diagnostic
                           laboratories, and (iii) 11 individual animal
                           hospitals, one of which was consolidated into an
                           existing facility. VCA continues to evaluate
                           acquisitions and negotiate with several potential
                           acquisition candidates. VCA may effect one or more
                           such acquisitions from the date of this Joint Proxy
                           Statement/Prospectus through the date of the closing
                           of the Merger with Pet Practice.

VCA's Reasons for the 
  Merger; Recommendations
  of the VCA Board.......  The VCA Board, by unanimous vote, has determined that
                           the Merger is in the best interests of the
                           stockholders of VCA and recommends that the
                           stockholders of VCA vote in favor of the Merger
                           Proposal. The decision of the VCA Board to enter into
                           the Merger Agreement and to recommend that
                           stockholders vote in favor of the Merger Proposal is
                           based upon its evaluation of a number of factors
                           including, among others, the opinion of National
                           Westminster Bank PLC, New York Branch ("NatWest"),
                           VCA's financial advisor for the Merger, to the effect
                           that, as of such date and based upon and subject to
                           certain matters stated therein, the consideration to
                           be paid by VCA pursuant to the Merger Agreement is
                           fair to VCA from a financial point of view. See "THE
                           MERGER -- VCA's Reasons for the Merger;
                           Recommendations of the VCA Board" and " -- Opinions
                           of Financial Advisors -- VCA."

Pet Practice's Reasons 
  for the Merger;
  Recommendations of the 
  Pet Practice Board ....  The Pet Practice Board, by unanimous vote, has
                           determined that the Merger is in the best interests
                           of the stockholders of Pet Practice and recommends
                           that the stockholders of Pet Practice vote to approve
                           the Merger and the Merger Agreement. The decision of
                           the Pet Practice Board to enter into the Merger
                           Agreement and to recommend that stockholders vote to
                           approve the Merger and the Merger Agreement is based
                           upon its evaluation of a number of factors. See "THE
                           MERGER -- Pet Practice's Reasons for the Merger;
                           Recommendations of the Pet Practice Board" and " --
                           Opinions of Financial Advisors -- Pet Practice."

                                       12
<PAGE>
 
Opinion of VCA's 
  Financial Advisor....... On March 21, 1996, prior to the execution of the
                           Merger Agreement, NatWest rendered to the VCA Board
                           its written opinion to the effect that, as of such
                           date and based upon and subject to certain matters
                           stated therein, the consideration to be paid by VCA
                           pursuant to the Merger Agreement is fair to VCA from
                           a financial point of view. A copy of the full text of
                           the written opinion of NatWest, which sets forth the
                           assumptions made, procedures followed, matters
                           considered and limits of its review, is attached to
                           this Joint Proxy Statement/Prospectus as Appendix B,
                           and should be read carefully in its entirety.
                           NatWest's opinion does not address any other aspect
                           of the Merger or the related transactions and does
                           not constitute a recommendation to any stockholder as
                           to how such stockholder should vote at the VCA Annual
                           Meeting. See "THE MERGER -- Opinions of Financial
                           Advisors -- VCA."

Opinion of Pet Practice's
  Financial Advisor......  Smith Barney Inc. ("Smith Barney") has acted as
                           financial advisor to Pet Practice in connection with
                           the Merger and delivered an oral opinion to the Pet
                           Practice Board on March 21, 1996 (subsequently
                           confirmed by delivery of a written opinion dated such
                           date) to the effect that, as of the date of such
                           opinion and based upon and subject to certain matters
                           stated therein, the Exchange Ratio was fair, from a
                           financial point of view, to the holders of Pet
                           Practice Common Stock. The full text of the written
                           opinion of Smith Barney dated March 21, 1996, which
                           sets forth the assumptions made, matters considered
                           and limitations on the review undertaken, is attached
                           as Appendix C to this Joint Proxy
                           Statement/Prospectus and should be read carefully in
                           its entirety. Smith Barney's opinion is directed only
                           to the fairness of the Exchange Ratio from a
                           financial point of view, does not address any other
                           aspect of the Merger or related transactions and does
                           not constitute a recommendation to any stockholder as
                           to how such stockholder should vote at the Pet
                           Practice Special Meeting. See "THE MERGER -- Opinions
                           of Financial Advisors -- Pet Practice."

Interests of Certain 
  Persons in the Merger..  In considering the recommendation of the Pet Practice
                           Board with respect to the Merger Agreement and the
                           transactions contemplated thereby, stockholders
                           should be aware that certain members of the
                           management of Pet Practice and the Pet Practice Board
                           have certain interests in the Merger that are in
                           addition to the interests of stockholders of Pet
                           Practice generally. See "THE MERGER-- Interests of
                           Certain Persons in the Merger."

Conditions to the Merger.  The obligations of VCA and Pet Practice to consummate
                           the Merger are subject to the satisfaction of certain
                           conditions, including, among others, (i) obtaining
                           requisite stockholder approvals, (ii) the expiration
                           or termination of the waiting period applicable to
                           the consummation of the Merger under the Hart-Scott-
                           Rodino Antitrust Improvements Act of 1976, as amended
                           (the "HSR Act"), (iii) the effectiveness of the
                           Registration Statement, and receipt of approvals
                           under state securities laws, (iv) the absence of any
                           material adverse change in the financial condition,
                           business, operations or prospects of the other party,
                           (v) the absence of any injunction prohibiting
                           consummation of the Merger, (vi) the receipt of
                           certain legal opinions with respect to the tax
                           consequences of the Merger and (vii) the receipt of
                           accountants' letters with respect to customary "cold
                           comfort" matters. See "THE MERGER AGREEMENT --
                           Conditions to the Merger."

                                       13
<PAGE>
 
Effective Time of the 
  Merger.............      The Merger will become effective (the "Effective
                           Time") upon the filing of a Certificate of Merger
                           (the "Certificate of Merger") with the Secretary of
                           State of the State of Delaware which certificate will
                           be filed as promptly as practicable after the
                           requisite stockholder approvals have been obtained
                           and all other conditions to the Merger have been
                           satisfied or waived. Subject to the satisfaction (or
                           waiver) of the other conditions to the obligations of
                           VCA and Pet Practice to consummate the Merger, it is
                           presently expected that the Merger will be
                           consummated on July 19, 1996 or as soon thereafter as
                           such conditions are satisfied. See "THE MERGER
                           AGREEMENT -- General."

Exchange of Stock
  Certificates...........  Upon consummation of the Merger, each holder of a
                           certificate or certificates representing shares of
                           Pet Practice Common Stock ("Certificates")
                           outstanding immediately prior to the Merger will,
                           upon the surrender thereof (duly endorsed, if
                           required) to a designated exchange agent (the
                           "Exchange Agent"), be entitled to receive a
                           certificate or certificates representing the number
                           of whole shares of VCA Common Stock into which such
                           shares of Pet Practice Common Stock will have been
                           automatically converted as a result of the Merger.
                           After the consummation of the Merger, the Exchange
                           Agent will mail a letter of transmittal with
                           instructions to all holders of record of Pet Practice
                           Common Stock as of the Effective Time for use in
                           surrendering their Certificates in exchange for
                           certificates representing shares of VCA Common Stock.
                           Certificates should not be surrendered until the
                           letter of transmittal and instructions are received.
                           See "THE MERGER AGREEMENT -- Exchange of Shares."

No Dissenters' Rights....  Holders of Pet Practice Common Stock are not entitled
                           to dissenters' rights in connection with the Merger.
                           See "THE MEETINGS OF STOCKHOLDERS --No Dissenters'
                           Rights."

Termination..............  The Merger Agreement may be terminated and the Merger
                           may be abandoned at any time prior to the Effective
                           Time, before or after the approval by the
                           stockholders of VCA and Pet Practice, respectively,
                           in a number of circumstances, which include, among
                           others: (a) by the mutual written consent of VCA and
                           Pet Practice; (b) by either VCA or Pet Practice if
                           the Average Price of VCA Common Stock is equal to or
                           less than $18.50; (c) by action of the Board of
                           Directors of either VCA or Pet Practice if (i) the
                           Merger shall not have been consummated by September
                           1, 1996, (ii) the approval of the Merger Proposal by
                           VCA's stockholders shall not have been obtained at a
                           stockholders' meeting duly convened for such purpose
                           (or any adjournment thereof) or (iii) the adoption of
                           the Merger Agreement and the approval of the
                           transactions contemplated thereby by Pet Practice's
                           stockholders shall not have been obtained at a
                           stockholders' meeting duly convened for such purpose
                           (or any adjournment thereof); (d) by action of the
                           Pet Practice Board, if (i) any material condition to
                           the obligations of Pet Practice is not substantially
                           satisfied at the times contemplated and the condition
                           is not waived, or (ii) there has been a breach by VCA
                           of any representation, warranty, covenant or
                           agreement contained in the Merger Agreement such that
                           the conditions to the obligations of Pet Practice
                           would not be satisfied which is not curable or, if
                           curable, VCA 

                                       14
<PAGE>
 
                           does not exercise reasonable efforts to cure; or 
                           (e) by action of the VCA Board, if (i) any material
                           condition to the obligations of VCA is not
                           substantially satisfied at the times contemplated and
                           the condition is not waived, or (ii) there has been a
                           breach by Pet Practice of any representation,
                           warranty, covenant or agreement contained in the
                           Merger Agreement such that the conditions to the
                           obligations of VCA would not be satisfied which is
                           not curable or, if curable, Pet Practice does not
                           exercise reasonable efforts to cure. See "THE MERGER
                           AGREEMENT -- Termination of the Merger Agreement."

Termination Fee..........  If, following any proposal relating to a merger,
                           acquisition, consolidation or similar transaction
                           involving, or any purchase of all or any significant
                           portion of the assets or any equity securities of,
                           Pet Practice or any of its subsidiaries, Pet Practice
                           effects any such transaction, or the Merger Agreement
                           is terminated, Pet Practice is obligated to pay to
                           VCA $3.5 million. See "THE MERGER AGREEMENT --
                           Certain Covenants -- Termination Fee."

Certain Federal Income 
  Tax Consequences.......  The Merger is intended to qualify as a reorganization
                           within the meaning of Section 368(a) of the Internal
                           Revenue Code of 1986, as amended (the "Code"), so
                           that no gain or loss would be recognized by VCA, Pet
                           Practice or Merger Corp. and no gain or loss would be
                           recognized by the stockholders of Pet Practice,
                           except in respect of cash received in lieu of
                           fractional shares. No ruling from the Internal
                           Revenue Service will be obtained with respect to the
                           tax consequences. A condition to the consummation of
                           the Merger is that VCA and Pet Practice each receive
                           from their respective counsel a legal opinion to the
                           effect that the Merger will constitute a tax free
                           reorganization. See "THE MERGER -- Certain Federal
                           Income Tax Consequences."

Nasdaq National Market...  The VCA Common Stock is traded on the Nasdaq National
                           Market under the symbol "VCAI." VCA will apply for
                           listing of the additional shares of VCA Common Stock
                           issued to the Pet Practice stockholders in connection
                           with the Merger on the Nasdaq National Market. See
                           "THE MERGER -- Nasdaq National Market."

Regulatory Matters.......  The Merger is subject to the requirements of the HSR
                           Act, and the rules and regulations thereunder, which
                           provide that certain transactions may not be
                           consummated until required information and materials
                           are furnished to the Antitrust Division of the
                           Department of Justice (the "Antitrust Division") and
                           the Federal Trade Commission (the "FTC") and the
                           requisite waiting period has expired or is
                           terminated. VCA and Pet Practice filed the required
                           information and materials with the Antitrust Division
                           and the FTC effective April 26, 1996 and the
                           requisite waiting period has expired. See "THE 
                           MERGER -- Regulatory Matters."

Accounting Treatment.....  The Merger will be accounted for as a "purchase"
                           under generally accepted accounting principles. See
                           "THE MERGER -- Accounting Treatment."

                                       15
<PAGE>
 
Resale Restrictions......  All shares of VCA Common Stock received by Pet
                           Practice stockholders in the Merger will be freely
                           transferable, except that shares of VCA Common Stock
                           received by persons who are deemed to be "affiliates"
                           (as such term is defined under the Act) of Pet
                           Practice and/or VCA will be subject to certain resale
                           restrictions. Abbingdon Venture Partners Limited
                           Partnership - II, a Delaware limited partnership
                           which is the principal stockholder of Pet Practice
                           (the "Principal Stockholder"), has agreed not to
                           transfer or otherwise dispose of the Pet Practice
                           Common Stock owned by it except to its partners who
                           agree not to transfer or otherwise dispose of the VCA
                           Common Stock received in the Merger with respect to
                           such Pet Practice Common Stock for a period ending on
                           April 30, 1997; provided, that, 33% of such shares
                           of VCA Common Stock shall no longer be subject to
                           such restriction on November 1, 1996 and the
                           remaining shares shall no longer be subject to such
                           restriction on May 1, 1997. See "THE MERGER -- Resale
                           Restrictions."

                                       16
<PAGE>
 
          SELECTED HISTORICAL AND UNAUDITED PRO FORMA FINANCIAL DATA

     The historical financial data of VCA, Pet Practice and Pets' Rx for the
periods indicated have been derived from their respective historical
consolidated financial statements, and should be read in conjunction with such
consolidated financial statements and the notes thereto, certain of which are
incorporated by reference or included in this Joint Proxy Statement/Prospectus.

     The selected unaudited pro forma financial data of VCA and Pet Practice and
the selected unaudited pro forma financial data of VCA, Pet Practice and Pets'
Rx are derived from, or prepared on a basis consistent with, the unaudited pro
forma combined condensed financial statements of VCA and Pet Practice and VCA,
Pet Practice and Pets' Rx, respectively, and should be read in conjunction with
such unaudited pro forma statements and notes thereto which are included in this
Joint Proxy Statement/Prospectus. The unaudited pro forma data are presented for
illustrative purposes only and are not necessarily indicative of the operating
results or financial position that would have existed if the Merger had occurred
on January 1, 1995 (in the case of VCA and Pet Practice) or if the Merger had
occurred on January 1, 1995 and the transaction with Pets' Rx (collectively, the
"Transactions") had been consummated on January 1, 1993 (in the case of VCA, Pet
Practice and Pets' Rx pro forma data), nor are they necessarily indicative of
future operating results or financial position of VCA. No pro forma data
reflecting the combination of VCA and Pets' Rx have been presented because such
information would not be relevant to any transaction involving Pet Practice.

<TABLE>
<CAPTION>
                                
                                             Years Ended December 31,                                    Pro Forma
                                 -----------------------------------------------                -------------------------
                                                                                    Three                        Three   
                                                                                    Months                       Months  
VCA:                                                                                Ended       Year Ended       Ended   
(In thousands, except per                                                          March 31,      December      March 31,
 share data)                      1991      1992       1993      1994      1995      1996         31, 1995        1996  
                                 -------   -------   -------    -------  --------  ---------    ----------      ---------
<S>                              <C>       <C>       <C>        <C>      <C>       <C>          <C>             <C>
                                                                                   
STATEMENT OF OPERATIONS DATA:                                                      
Revenues                         $14,572   $18,476   $25,313    $42,233  $ 92,072  $ 31,004       $143,514      $ 36,390
                                                                                   
Operating income (loss)            1,640     1,115    (2,140)     1,796     9,351     3,453         14,447         3,470
                                                                                   
Net income (loss)                    510       258    (1,858)       589     2,564     1,012          2,479           878
                                                                                   
Earnings (loss) per common                                                         
 share:                                                                            
  Primary                          $0.14     $0.05    $(0.36)     $0.09  $   0.24  $   0.07       $   0.22      $   0.06

  Fully diluted                    $0.14     $0.05    $(0.29)     $0.09  $   0.23  $   0.07       $   0.21      $   0.06

Weighted average common
 shares used
 for computing earnings
  (loss) per share:
 Primary                           3,560     5,471     5,165      6,432    10,703    15,110         11,448        15,377

 Fully diluted                     3,842     5,639     6,238      6,906    11,238    15,492         11,983        15,759

 
BALANCE SHEET DATA:
Cash and equivalents             $13,668   $11,067   $12,419    $ 5,553  $ 46,799  $ 37,615                     $115,548

Total assets                      30,141    35,596    40,273     52,199   141,465   157,048                      245,170

Current portion of long-term       
 obligations and notes
  payable                          2,312     1,303     1,542      4,850     6,009     7,563                        8,020
Long-term obligations, less        
 current portion                   6,533     9,152    11,285     14,071    27,352    29,588                      116,506
Guaranteed purchase price          
 contingently    
 payable in cash or common
  stock                              665       542       542         72        --                  --                           --
Total stockholders' equity        18,956    22,299    20,590     23,397    91,794             102,145                      102,382
</TABLE>

                                       17
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                           
                                For the Period             
                                 October 27,                                                       Pro Forma 
                                    1993                                                    -----------------------
                                (Commencement                                    Thirteen                   Thirteen   
                                      of         Year Ended                       Weeks                       Weeks
PET PRACTICE:                   Operations) to    December       Year Ended       Ended        Year Ended     Ended   
(In thousands, except per        December 29,        28,            January      April 3,      January 3,    April 3, 
 share data)                        1993            1994           3, 1996        1996            1996         1996   
                                --------------   ----------      ----------     ----------     -----------  ---------- 
<S>                             <C>              <C>             <C>            <C>            <C>          <C>  
STATEMENT OF OPERATIONS DATA:                                                                
Revenues                             $1,201        $15,111         $40,571        $13,404         $58,828     $13,579
Operating (loss) income                (446)        (3,101)         (1,230)          (650)          1,254        (639)
Net loss                               (629)        (4,888)         (3,175)          (899)         (1,727)       (910)
Net loss per common share            $(0.15)       $ (1.20)        $ (0.54)       $ (0.10)        $ (0.29)    $ (0.11)
Weighted average common                                                                      
 shares used for computing                                                                   
 loss per share                       4,059          4,059           5,863          8,614           6,044       8,626
                                                                                                          
BALANCE SHEET DATA:                                                                                       
Cash and equivalents                $    74        $   910         $10,097        $ 4,916 
Total assets                         11,653         35,417          80,462         79,715  
Current portion of long-term                                                                              
 obligations and notes                                                                                    
  payable (1)                            65          1,609           3,696          3,820  
Long-term obligations, less                                                                               
 current portion                      9,503         18,885          15,786         16,216  
Total stockholders' (deficit)                                                                             
 equity                                (427)        (3,649)         53,220         52,521   

<CAPTION> 
                                                                                                                     
                                May 28, 1991                                                                         
                                (Commencement                                                              
                                     of                                                                    Three        
                                 Operations)                                                               Months        
PETS' RX:                       to December                   Years Ended December 31,                     Ended         
(In thousands, except per            31,            ------------------------------------------------       March         
 share data)                        1991              1992          1993         1994         1995        31, 1996       
                                -------------       -------       -------       -------      -------      --------       
<S>                             <C>                 <C>           <C>           <C>          <C>          <C>            
STATEMENT OF OPERATIONS DATA:                                                                                            
Revenues                          $  346             $3,657       $ 5,785       $ 9,638      $15,622      $ 4,228        
Operating loss                      (282)              (726)       (1,191)       (1,837)      (1,017)        (116)       
Net loss                            (292)              (844)       (1,522)       (2,805)      (1,977)        (358)       
Net loss per common share         $(0.22)            $(0.55)      $ (0.85)      $ (0.46)     $ (0.32)     $ (0.06)       
Average common shares used                                                                                                         
 for computing loss per share      1,309              1,527         1,793         6,069        6,266        6,267        
                                                                                                                                   
BALANCE SHEET DATA:                                                                                                                
Cash and equivalents              $  2024            $  889       $   548       $ 2,254      $   752      $   251        
Total assets                        3,821             6,418        12,316        17,283       15,332       14,581        
Current portion of long-term                                                                                                       
 obligations and notes                 67               428           776           702        1,412        1,167        
  payable                                                                                                                          
Long-term obligations, less                                                                                                        
 current portion                      477             3,007         9,280        10,986        9,426        9,219        
Total stockholders' equity                                                                                                         
 (deficit)                            523               268        (1,315)          606       (1,142)     (1,299)    
</TABLE>
        
________________________
(1)  Excludes $10,067 of borrowings under line of credit at December 28, 1994.

                                       18
<PAGE>
 
<TABLE>
<CAPTION>
 
                                                                     Year Ended December 31, 1995
                                                        -------------------------------------------------------
                                                                                                    VCA and Pet 
                                                                                                     Practice   
VCA AND PET PRACTICE PRO FORMA:                            VCA      Pet Practice     Pro Forma       Pro Forma  
(In thousands, except per share data)                   Pro Forma     Pro Forma     Adjustments       Combined   
                                                        ---------   ------------    -----------     -----------
<S>                                                     <C>         <C>             <C>             <C>  
 
STATEMENT OF OPERATIONS DATA:
Revenues                                                 $143,514        $58,828                      $202,342
Operating income                                           14,447          1,254        $(1,612)        14,089
Net income (loss)                                           2,479         (1,727)          (974)          (222)
Earnings (loss) per common share:
  Primary                                                $   0.22                                     $  (0.02)
  Fully diluted                                          $   0.21
Weighted average common shares
 used for computing earnings (loss) per share:
  Primary                                                  11,448                         3,273         14,721
  Fully diluted                                            11,983
 
<CAPTION>  
 
                                                                Three Months Ended March 31, 1996
                                                        -------------------------------------------------------- 
                                                                                                    VCA and Pet
                                                                                                     Practice  
                                                           VCA      Pet Practice     Pro Forma       Pro Forma 
                                                        Pro Forma    Pro Forma      Adjustments      Combined   
                                                        ---------   ------------    -----------     -----------
<S>                                                     <C>         <C>             <C>             <C> 
Revenues                                                 $ 36,390        $13,579                      $ 49,969
Operating income                                            3,470           (639)       $  (215)         2,616
Net income (loss)                                             878           (910)            61             29
Earnings per common share:
  Primary                                                $   0.06                                     $   0.00
  Fully diluted                                          $   0.06                                     $   0.00
Weighted average common shares
 used for computing earnings per share:
  Primary                                                  15,377                         3,273         18,650
  Fully diluted                                            15,759                         3,273         19,032
 
<CAPTION> 

                                                                                                      
                                                                                                       VCA and  
                                                                                                         Pet    
                                                                                                      Practice  
                                                           VCA       Pet Practice     Pro Forma       Pro Forma  
BALANCE SHEET DATA:                                     Pro Forma     Historical     Adjustments      Combined  
                                                        ---------    ------------    -----------      ---------
<S>                                                     <C>          <C>             <C>              <C> 
Cash and equivalents                                     $115,548        $ 4,916        $(3,400)      $117,064
Total assets                                              245,170         79,715         33,804        358,689
Current portion of long-term                             
 obligations and notes payable                              8,020          3,820                        11,840 
Long-term obligations, less                              
 current portion                                          116,506         16,216                       132,722 
Total stockholders' equity                                102,382         52,521         33,804        188,707
 
</TABLE>

                                       19
<PAGE>
 
<TABLE>
<CAPTION>
                                                                          Year Ended December 31, 1995
                                                     ------------------------------------------------------------------------
                                                                                                                   VCA, Pet   
                                                                                                                 Practice and 
                                                                                                                  Pets' Rx    
VCA, PET PRACTICE AND PETS' RX:                      VCA Pro    Pet Practice      Pets' Rx      Pro Forma         Pro Forma   
(In thousands, except per share data)                Forma       Pro Forma      Historical     Adjustments         Combined    
                                                     --------   ------------    ----------     -----------       ------------
<S>                                                 <C>         <C>             <C>            <C>               <C>
STATEMENT OF OPERATIONS DATA:
Revenues                                             $143,514        $58,828        $15,622                        $217,964
Operating income (loss)                                14,447          1,254         (1,017)      $(3,413)           11,271
Net income (loss)                                       2,479         (1,727)        (1,977)       (2,775)           (4,000)
Earnings (loss) per common share:
 Primary                                             $   0.22                                                        $(0.26)
 Fully diluted                                       $   0.21
Weighted average common shares
 used for computing earnings (loss) per share:
  Primary                                              11,448                                       4,074            15,522
  Fully diluted                                        11,983
 
<CAPTION>  
                                                                       Three Months Ended March 31, 1996
                                                   --------------------------------------------------------------------------
                                                                                                                  VCA, Pet    
                                                                                                                 Practice and 
                                                                                                                  Pets' Rx    
                                                     VCA Pro     Pet Practice     Pets' Rx       Pro Forma        Pro Forma   
                                                     Forma        Pro Forma      Historical     Adjustments       Combined     
                                                     --------    ------------    ----------     -----------      ------------
<S>                                                  <C>         <C>             <C>            <C>              <C> 
Revenues                                             $ 36,390        $13,579        $ 4,228                        $ 54,197
Operating income (loss)                                 3,470           (639)          (116)       $ (109)            2,606
Net income (loss)                                         878           (910)          (358)          167              (223)
Earnings (loss) per common share:
  Primary                                            $   0.06                                                        $(0.01)
  Fully diluted                                      $   0.06
Weighted average common shares
 used for computing earnings (loss) per share:
  Primary                                              15,377                                        4,074           19,451
  Fully diluted                                        15,759

<CAPTION> 

                                                                                                                    VCA, Pet  
                                                                                                                  Practice and
                                                                                                                    Pets' Rx  
                                                       VCA       Pet Practice      Pets' Rx       Pro Forma        Pro Forma  
                                                    Pro Forma     Historical      Historical     Adjustments       Combined    
                                                    ---------    ------------     ----------     -----------      ------------
<S>                                                 <C>          <C>              <C>            <C>              <C> 
BALANCE SHEET DATA:
Cash and equivalents                                 $115,548        $ 4,916        $   251        $(3,400)        $117,315
Total assets                                          245,170         79,715         14,581         30,529          369,995
Current portion of long-term                         
 obligations and notes payable                          8,020          3,820          1,167                          13,007 
Long-term obligations, less                          
 current portion                                      116,506         16,216          9,219                         141,941 
Total stockholders' equity (deficit)                  102,382         52,521         (1,299)        33,476          187,080
 
</TABLE>

                                       20
<PAGE>
 
                           MARKET PRICE INFORMATION

     The VCA Common Stock and the Pet Practice Common Stock are listed for
quotation on the Nasdaq National Market.

     The table below sets forth, for the calendar quarters indicated, the high
and low closing sales prices per share reported on the Nasdaq National Market
for the VCA Common Stock and the Pet Practice Common Stock. Price information
for the Pet Practice Common Stock is supplied since August 1, 1995, the first
business day following Pet Practice's initial public offering.

<TABLE>
<CAPTION>
                                                       VCA                  PET PRACTICE
                                                   COMMON STOCK             COMMON STOCK
                                               ---------------------    ----------------------
                                                  HIGH         LOW        HIGH           LOW
                                               ---------     -------    --------       -------
<S>                                            <C>           <C>        <C>            <C>  
1994:
   First Quarter...........................       9            6
   Second Quarter..........................       8            6
   Third Quarter...........................       7 1/4        5 7/8
   Fourth Quarter..........................       9 1/2        6 5/8
1995:
   First Quarter...........................      11 3/16       8
   Second Quarter..........................      12 1/4       10 3/8
   Third Quarter...........................      17 11/16     11 1/2     14 3/4          12 5/8
   Fourth Quarter..........................      16 29/32     12 5/8     14 5/8           9 3/4
1996:
  First Quarter............................      29 3/8       13 5/8     10 3/4           7
  Second Quarter (through June 19, 1996)...      32 3/8       23         10 1/8           8 3/4
 
</TABLE>

     The last reported sale prices per share of the VCA Common Stock and the
Pet Practice Common Stock on March 21, 1996, the last trading day preceding
public announcement of the Merger, were $25.75 and $8.875, respectively.  On
June ___, 1996, the latest practicable trading day before the printing of this
Joint Proxy Statement/Prospectus, the closing sale price per share of VCA Common
Stock was $_____________ and the closing sale price per share of Pet Practice
Common Stock was $___________.

     Because the market price of VCA Common Stock is subject to fluctuation,
and because the number of shares of VCA Common Stock to be received by Pet
Practice stockholders in the Merger fluctuates based upon the market price of
the VCA Common Stock, the market value of the shares of VCA Common Stock that
holders of Pet Practice Common Stock will receive in the Merger may increase or
decrease prior to the Merger.  See "THE MERGER -- Consideration to be Received
in the Merger."

     As of May 20, 1996, VCA and Pet Practice had approximately 356 and 68
holders of record, respectively. Neither VCA nor Pet Practice has paid any
dividends on their common stock. Each of VCA and Pet Practice currently intends
to retain earnings for use in their respective businesses and does not
anticipate paying cash dividends on their common stock in the foreseeable
future. In addition, the Merger Agreement prohibits the payment of any dividends
by Pet Practice prior to the Effective Time.

                                       21
<PAGE>
 
                          COMPARATIVE PER SHARE DATA

     The following table contains historical per share data of VCA, Pet
Practice, and Pets' Rx and unaudited pro forma combined per share data after
giving effect to the Merger or the Transactions assuming (x) that .379 of a
share of VCA Common Stock (based upon an assumed Average Price of $26.38) is
issued in exchange for each share of Pet Practice Common Stock, and (y) that
 .08592 of a share of VCA Common Stock is issued in exchange for each share of
common stock, par value $.001 per share, of Pets' Rx. This data should be read
in conjunction with the Selected Historical and Unaudited Pro Forma Financial
Data, the pro forma condensed combined financial statements and historical
financial statements of VCA, Pet Practice and Pets' Rx, and the notes thereto,
incorporated in or included elsewhere in this Joint Proxy Statement/Prospectus.

     The unaudited pro forma condensed combined financial data are not
necessarily indicative of the operating results that would have been achieved
had the Merger or the Transactions been effected as of the beginning of the
periods presented and should not be construed as representative of future
operations.

<TABLE>
<CAPTION>
                                                                                                
                                                                 Years Ended December 31,        Three Months 
                                                                --------------------------          Ended     
                                                                 1993      1994      1995        March 31, 1996 
                                                                ------    ------    ------       ---------------
<S>                                                             <C>       <C>       <C>          <C>
VCA
 Primary (Loss) Earnings Per Share (based on VCA
  equivalent shares) :
  VCA pro forma combined (1)................................    $(0.36)   $ 0.09    $ 0.22            $ 0.06
  VCA and Pet Practice pro forma (2)........................     (0.36)     0.09     (0.02)             0.00
  VCA, Pet Practice and Pets' Rx pro forma (3)..............     (0.90)    (0.26)    (0.26)            (0.01)
 Book Value
  VCA pro forma combined....................................                                            7.77
  VCA and Pet Practice pro forma............................                                           11.47
  VCA, Pet Practice and Pets' Rx pro forma..................                                           10.84
Pet Practice
 Primary (Loss) Earnings Per Share (based on Pet Practice
  equivalent shares):
  Pet Practice pro forma combined...........................                         (0.29)            (0.11)
  Pet Practice and VCA pro forma............................                         (0.01)             0.00
  Pet Practice, VCA and Pets' Rx pro forma..................                         (0.09)             4.35
 Book Value
  Pet Practice pro forma combined...........................                                            6.08
  Pet Practice and VCA pro forma............................                                            4.35
  Pet Practice, VCA and Pets' Rx pro forma..................                                            4.11
</TABLE> 
- --------------------------

(1) For the years ended December 31, 1993 and 1994, the amounts shown represent
    the historical net earnings per share of VCA Common Stock.  For the year
    ended December 31, 1995 and the three months ended March 31, 1996, the
    amounts shown represent the pro forma combined net earnings per share of VCA
    Common Stock as if each acquisition completed by VCA during fiscal 1995 and
    1996 had been effected as of January 1, 1995 and January 1, 1996,
    respectively.

(2) For the years ended December 31, 1993 and 1994, the amounts shown represent
    the historical net earnings per share of VCA Common Stock.  For the year
    ended December 31, 1995 and the three months ended March 31, 1996, the
    amounts shown represent VCA and Pet Practice pro forma net earnings per
    share.

(3) For the years ended December 31, 1993 and 1994, the amounts shown represent
    VCA and Pets' Rx pro forma net earnings per share.  For the year ended
    December 31, 1995 and the three months ended March 31, 1996, the amounts
    shown represent VCA, Pet Practice and Pets' Rx pro forma net earnings per
    share.

                                       22
<PAGE>
 
                                 RISK FACTORS

     VCA stockholders and Pet Practice stockholders should consider carefully
the following factors, as well as the other information appearing elsewhere or
incorporated in this Joint Proxy Statement/Prospectus in evaluating the Merger.


PENDING TRANSACTIONS

     VCA acquired Pets' Rx, the owner and operator of 16 animal hospitals in
California and Nevada, on June 19, 1996.

     VCA has entered into the Merger Agreement with Pet Practice and acquired
Pets' Rx with the expectation that the transactions will result in beneficial
synergies for the combined business. These include the potential to realize
improved operating margins at animal hospitals through a strategy of
centralizing various corporate and administrative functions and leveraging fixed
costs while providing customers with improved services.

     Achieving these anticipated business benefits will depend in part on
whether the operations of Pet Practice and Pets' Rx, or either of them, can be
integrated with the operations of VCA in an efficient, effective and timely
manner. There can be no assurance that this will occur. The combination of two
or three of the companies will require, among other things, integration of the
companies' management staffs, coordination of the companies' sales and marketing
efforts, integration and coordination of the companies' development teams and
the identification and elimination of redundant and/or unnecessary overhead and
poor-performing hospitals. The success of this process will be significantly
influenced by the ability of the combined business to retain key management and
marketing and development personnel. There is no assurance that this integration
will be accomplished smoothly or successfully or that VCA will be successful in
retaining key members of management. The difficulties of such integration may be
increased by the necessity of coordinating geographically separated
organizations with distinct cultures. The integration of operations of two or
three of the companies following the mergers will require the dedication of
management resources, which may temporarily distract attention from the day-to-
day business of the combined business. The inability of management to integrate
successfully the operations of two or three of the companies could have an
adverse effect on the business and results of the combined business. In
addition, even if the operations of the three companies are ultimately
successfully integrated, it is anticipated that the integration will be
accomplished over time and, in the interim, the combination may have an adverse
effect on the business, results of operations and financial condition of the
combined business.

     In addition, there can be no assurance that the present and potential
customers of VCA, Pet Practice and Pets' Rx will continue their current
utilization patterns without regard to the proposed mergers or that the proposed
mergers will not have an adverse impact upon relationships with veterinarians
and other animal health care professionals currently employed by VCA, Pet
Practice and Pets' Rx. Any significant reduction in utilization patterns by VCA,
Pet Practice and Pets' Rx's customers, or any significant adverse impact on
relationships with the veterinarians and other animal health care professionals
currently employed by VCA, Pet Practice or Pets' Rx, could have an adverse
effect on the near-term business and results of operations of the combined
business.

     Pet Practice commenced operations in October 1993, although the initial
business Pet Practice acquired has, and most of the veterinary hospitals
acquired since have, operated over a substantial period. Pet Practice had net
losses of $4,888,000 in fiscal 1994, $3,175,000 in fiscal 1995 and $899,000 for
the thirteen weeks ended April 3, 1996 and an accumulated deficit of $9,591,000
as of April 3, 1996 relating to net losses in the period from October 27, 1993
(commencement of operations) through December 29, 1993, fiscal 1994 and 1995 and
the thirteen weeks ended April 3, 1996. In view of Pet Practice's significant
recent growth and the impact of certain charges on Pet Practice's 1994 and 1995
results, Pet Practice's historical financial performance may not be indicative
of its future performance (see "MANAGEMENT'S DISCUSSION AND ANALYSIS OF
FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF PET PRACTICE"). There can be no
assurance that Pet Practice will achieve profitability or successfully implement
its business strategy. See "MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
CONDITION AND RESULTS OF OPERATIONS OF PET PRACTICE."

     Pets' Rx commenced operations on May 28, 1991. Pets' Rx had net losses of
approximately $2,805,000 in fiscal 1994, $1,977,000 in fiscal 1995 and $358,000
for the three months ended March 31, 1996 and an accumulated deficit of
$8,505,000 as of March 31, 1996. Further losses are expected to be recorded for
fiscal 1995 if the Pets' Rx merger with VCA is

                                       23
<PAGE>
 
consummated as a result of anticipated pooling adjustments.  In view of Pets'
Rx's recent growth and the impact of nonrecurring charges and certain other
charges on Pets' Rx's 1994 and 1995 results, Pets' Rx's historical financial
performance may not be indicative of its future performance.  There can be no
assurance that Pets' Rx will achieve profitability or successfully implement its
business strategy.

ANTICIPATED EFFECTS OF ACQUISITIONS

          VCA is currently evaluating the operations of the businesses of Pet
Practice and Pets' Rx for purposes of developing a plan for the integration of
the businesses to be acquired with VCA's existing operations.  Although this
plan is not complete at the time of the mailing of this Joint Proxy
Statement/Prospectus, it is anticipated that a significant restructuring of the
combined operations will be required as a result of the mergers.  As a
consequence of this restructuring and the consummation of the mergers, VCA
anticipates incurring one-time restructuring and related charges in the second
and/or third quarters of 1996.  The magnitude of these charges has not been
quantified at this time.

          The Pets' Rx acquisition is intended to be accounted for on a pooling
of interests basis.  Under the pooling rules, the historical financial results
of VCA will be restated to reflect the combination, following certain
adjustments.  Pets' Rx incurred a loss in each of the three fiscal years ended
December 31, 1995 and in the first quarter ended March 31, 1996.  Following the
consummation of the merger, the historical results of VCA will be restated to
reflect the historical losses of Pets' Rx.  In addition, Pets' Rx is expected to
continue to incur losses in the second quarter of 1996.  Further, under the
pooling rules, the costs incurred by VCA and Pets' Rx in consummating the merger
will be expensed during the second quarter.

          The Pet Practice Merger is intended to be accounted for as a purchase.
Under the purchase rules, the Merger is expected to result in a significant
increase in the goodwill and other intangibles recorded on VCA's balance sheet.
This increase in goodwill and other intangibles will be in addition to the
increase resulting from the combination with Pets' Rx, which also has
significant goodwill and other intangibles recorded on its balance sheet.  As a
result, VCA expects that its amortization expense will significantly increase
over historical levels.

          The combined effect of the restructuring and other charges discussed
above, the pooling treatment in the Pets' Rx acquisition and the increased
amortization expense will have an adverse effect on the results of operations of
VCA in each of the second and third quarters of 1996.  Further, the effect of
the increased amortization expense is expected to temper reported earnings of
VCA in the fourth quarter and subsequent periods.

RAPID EXPANSION AND MANAGEMENT OF GROWTH

          Due to the number and size of acquisitions completed since January 1,
1994, VCA and Pet Practice have experienced rapid growth.  In 1994, VCA
completed six acquisitions (five animal hospitals and one veterinary diagnostic
laboratory) and in 1995, VCA completed 32 acquisitions (25 animal hospitals, six
veterinary diagnostic laboratories and the remaining 30 percent interest in
Professional Animal Laboratory ("PAL")).  As a result of these acquisitions,
VCA's revenues have grown from $25.3 million in 1993 to $42.2 million in 1994
and to $92.1 million in 1995.  In addition, during this period, VCA entered two
new lines of business, veterinary diagnostic laboratories and premium pet food.

          In 1994, Pet Practice acquired 30 veterinary hospitals and in 1995,
Pet Practice acquired 38 veterinary hospitals.  As a result of these
acquisitions, Pet Practice's revenues have grown from $1.2 million in the period
from October 27, 1993 to December 29, 1993 to $15.1 million in fiscal 1994 and
to $40.6 million in fiscal 1995.

          VCA's and Pet Practice's growth and pace of acquisitions have placed,
and will continue to place, a substantial strain on their respective management,
operational, financial and accounting resources.  The successful management of
this growth will require VCA and Pet Practice to continue to implement and
improve their respective financial and management information systems and to
train, motivate and manage their respective employees.  There can be no
assurance that the combined business will be able to identify, consummate or
integrate acquisitions without substantial delays, costs or other problems.
Once integrated, acquisitions may not achieve sales, profitability and asset
productivity commensurate with the combined business' other operations.  In
addition, acquisitions involve several other risks, including adverse short-term
effects on the combined business' reported operating results, impairments of
goodwill and other intangible assets, the diversion of management's attention,
the dependence on retention, hiring and training of key personnel, the
amortization of intangible assets and risks

                                       24
<PAGE>
 
associated with unanticipated problems or legal liabilities.  The combined
business' failure to manage growth effectively would have a material adverse
effect on the combined business' results of operations and its ability to
execute its business strategy.

          In addition, the growth experienced by VCA and Pet Practice, and the
corresponding increased need for timely information, have placed significant
demands on VCA's and Pet Practice's existing accounting and management
information systems.  As a result, Pet Practice is in the process of upgrading,
and VCA intends to upgrade, these systems in 1996.  No assurance can be given
that these upgrades will be completed successfully or that the new systems can
be successfully integrated or that the new systems will effectively serve the
combined business' future information requirements.

DEPENDENCE ON ACQUISITIONS FOR FUTURE GROWTH

          VCA's, Pet Practice's and the combined business' respective growth
strategies are dependent principally on their ability to acquire existing animal
hospitals and (in the case of VCA and the combined business) veterinary
diagnostic laboratories.  Successful acquisitions involve a number of factors
which are difficult to control, including the identification of potential
acquisition candidates, the willingness of the owners to sell on reasonable
terms and the satisfactory completion of negotiations.  In addition,
acquisitions may be subject to pre-merger or post-merger review by governmental
authorities for antitrust and other legal compliance.  Adverse regulatory action
could negatively affect VCA, Pet Practice and the combined business' respective
operations through the assessment of fines or penalties against VCA, Pet
Practice and the combined business or the possible requirement of divestiture of
one or more of VCA's, Pet Practice's and the combined business' operations.

          There can be no assurance that the combined business will be able to
identify and acquire acceptable acquisition candidates on terms favorable to the
combined business in a timely manner in the future.  Assuming the availability
of capital, VCA's plans include an aggressive acquisition program involving the
acquisition by the combined business of at least 15 to 25 facilities per year.
During the period from January 1, 1996 to June 20, 1996, VCA acquired (i) Pets'
Rx, the owner and operator of 16 animal hospitals, (ii) three veterinary
diagnostic laboratories and (iii) 11 animal hospitals, one of which was
consolidated into an existing facility.  During this same period, Pet Practice
has acquired three veterinary hospitals.  Each of VCA and Pet Practice continues
to evaluate acquisitions and negotiate with several potential acquisition
candidates (although Pet Practice is precluded by the Merger Agreement from
effecting any acquisition while the Merger is pending without the approval of
VCA).  The failure to complete acquisitions and continue expansion could have a
material adverse effect on VCA's, Pet Practice's and the combined business'
financial performance.  As the combined business proceeds with its acquisition
strategy, it will continue to encounter the risks associated with the
integration of acquisitions described above.

LEVERAGE

          VCA, Pet Practice and Pets' Rx have each incurred substantial
indebtedness to finance the acquisition of their respective animal hospitals and
(in the case of VCA) veterinary diagnostic laboratories.  Giving effect to debt
incurred in acquisitions subsequent to March 31, 1996 through June 20, 1996
(excluding the acquisition of Pets' Rx), VCA had at March 31, 1996, consolidated
long-term obligations (including current portion) of approximately $38.8
million.  Pet Practice had at April 3, 1996 consolidated long-term obligations
(including current portion) of approximately $20.0 million.  At March 31, 1996,
Pets' Rx had consolidated long-term obligations (including current portion) of
$10.4 million.  In addition, on April 17, 1996, VCA issued subordinated debt in
an aggregate principal amount of $84.4 million (the "Debentures").  At December
31, 1995 and March 31, 1996, VCA's ratio of long-term debt to total
stockholders' equity was 36.3% and 36.4%, respectively.  As of March 31, 1996,
after giving effect to the Transactions and the sale of the Debentures, the
ratio of long-term debt to total stockholders' equity will be 82.8%.  VCA
expects to incur additional indebtedness in the future to continue its
acquisition strategy.

RISKS ASSOCIATED WITH INTANGIBLE ASSETS

          A substantial portion of the assets of VCA, Pet Practice and Pets' Rx
consists of intangible assets, including goodwill and covenants not to compete
relating to the acquisition of animal hospitals and veterinary diagnostic
laboratories.  At March 31, 1996, VCA's balance sheet reflected $85.2 million of
intangible assets of these types, a substantial portion of VCA's $157.0 million
in total assets at such date.  At April 3, 1996, Pet Practice's balance sheet
reflected $53.8 million of intangible assets of these types, a significant
portion of Pet Practice's $79.7 million in total assets.  At March 31, 1996,
Pets' Rx's balance sheet reflected $9.3 million of intangible assets of these
types, a significant portion of Pets' Rx's $14.6 million in total assets at such
date.  VCA expects the aggregate amounts of goodwill and other intangible assets
on its balance sheet to increase in the future

                                       25
<PAGE>
 
in connection with additional acquisitions.  This increase will have an adverse
impact on earnings as goodwill and other intangible assets will be amortized
against earnings.  In the event of any sale or liquidation of VCA, there can be
no assurance that the value of these intangible assets will be realized.  In
addition, the respective companies continually evaluate whether events and
circumstances have occurred that indicate the remaining balance of intangible
assets may not be recoverable.  When factors indicate that these intangible
assets should be evaluated for possible impairment, they may be required to
reduce the carrying value of intangible assets, which could have a material
adverse effect on results of operations during the periods in which such
reduction is recognized.  In accordance with this policy, VCA recognized a
writedown of goodwill and related assets in the amount of $2.3 million in 1993
in connection with three of VCA's facilities which were not performing.  There
can be no assurance that the combined business will not be required to writedown
assets further in future periods.  In connection with an accounting change
related to the pooling of interests of Pets' Rx, the combined company will
recognize a pretax writedown of $2.1 million in each of 1993 and 1995.

GUARANTEED PAYMENTS

          In connection with acquisitions in which the purchase price consists,
in part, of VCA Common Stock (the "Guarantee Shares"), VCA often guarantees (the
"Guarantee Right") that the value of such stock (the "Measurement Price") two to
three years following the date of the acquisition (the "Guarantee Period") will
equal or exceed the value of the stock on the date of acquisition (the "Issue
Price").  In the event the Measurement Price does not equal or exceed the Issue
Price, VCA typically is obligated either to (i) pay to the seller in cash, notes
payable or additional shares of VCA Common Stock the difference between the
Issue Price and the Measurement Price multiplied by the number of Guarantee
Shares then held by the seller, or (ii) purchase the Guarantee Shares then held
by the seller.  Once the Guarantee Shares are registered for resale under the
Act, which registration VCA covenants to effect generally within six months of
issuance of the Guarantee Shares, the seller's Guarantee Right typically
terminates if the VCA Common Stock trades at 110% to 120% of the Issue Price for
five to 15 consecutive days, depending on the terms of the specific acquisition
at issue.  There are 285,444 Guarantee Shares outstanding at March 31, 1996 with
Issue Prices ranging from $11.70 to $17.49 that have not been registered for
resale.  If the value of the VCA Common Stock decreases and is less than an
Issue Price at the end of the respective Guarantee Period for these shares, VCA
may be obligated to compensate these sellers.

          In connection with the Pet Practice merger, VCA will assume the
Guarantee Rights issued by Pet Practice (which generally operate similarly to
the Guarantee Rights issued by VCA, except that there is no provision for a
release of the Guarantee Right).  Giving effect to the terms of the Merger, the
number of Guarantee Shares issued by Pet Practice is not material to the
capitalization of the combined business.

SEASONALITY AND FLUCTUATING QUARTERLY RESULTS

          A large portion of the businesses of VCA, Pet Practice and Pets' Rx is
seasonal, with operating results varying substantially from quarter to quarter.
Historically, VCA's revenues have been greater in the second and third quarters
than in the first and fourth quarters.  The demand for VCA's veterinary services
are significantly higher during warmer months because pets spend a greater
amount of time outdoors, where they are more likely to be injured and are more
susceptible to disease and parasites.  In addition, use of veterinary services
may be affected by levels of infestation of fleas, heartworms and ticks, and the
number of daylight hours, as well as general economic conditions.  A substantial
portion of VCA's and the combined business' costs are fixed and do not vary with
the level of demand.  Consequently, net income for the second and third quarters
at individual animal hospitals generally has been higher than that experienced
in the first and fourth quarters.

DEPENDENCE ON KEY MANAGEMENT

          VCA's and the combined business' success will continue to depend to a
significant extent on VCA's executive officers and other key management,
particularly its Chief Executive Officer, Robert L. Antin.  VCA has an
employment contract with Mr. Robert Antin, Mr. Arthur Antin, Chief Operating
Officer of VCA, Mr. Neil Tauber, Senior Vice President of VCA, and Mr. Tomas
Fuller, Chief Financial Officer of VCA, each of which expires in December 1998.
VCA has no other written employment agreements with its executive officers.
None of VCA's officers are parties to noncompetition covenants which extend
beyond the term of their employment with VCA.  VCA maintains "key man" life
insurance on Mr. Robert Antin in the amount of $3.0 million, of which VCA is the
sole beneficiary.  VCA does not maintain any insurance on the lives of its other
senior management.  As VCA continues to grow, it will continue to hire, appoint
or otherwise change senior managers and other

                                       26
<PAGE>
 
key executives.  There can be no assurance that VCA will be able to retain its
executive officers and key personnel or attract additional qualified members to
management in the future.  In addition, the success of certain of VCA's
acquisitions may depend on VCA's ability to retain selling veterinarians of the
acquired companies.  The loss of services of any key manager or selling
veterinarian could have a material adverse effect upon VCA's business.

JOINT VENTURES

          VCA conducts a portion of its veterinary diagnostic laboratory
business through a joint venture with Vet Research, Inc. ("VRI"), and conducts
its pet food business through a joint venture with Heinz Pet Products, an
affiliate of H.J. Heinz Company.  VCA has an option (the "VCA Option Agreement")
in January 1997 to acquire the remaining 49 percent interest in the laboratory
joint venture for $18.6 million in cash plus an additional amount based upon the
earnings of the joint venture to be paid over six years.  Based on current
information available to it, VCA expects to exercise its purchase option in
January 1997.  If for any reason VCA does not exercise the option, VRI has the
option to purchase from VCA its entire 51 percent interest for $3.5 million.  On
the earlier of a change in control of VCA or January 1, 2000, Heinz Pet Products
has the option to purchase all of VCA's interest in the Vet's Choice joint
venture at a purchase price equal to the fair market value of such interest.
The proposed acquisition of Pet Practice will not result in a change in control
for purposes of the Vet's Choice joint venture.  There can be no assurance that
VCA will not have to sell these joint venture interests.

COMPETITION

          The companion animal health care industry is highly competitive and
subject to continual change in the manner in which services are delivered and
providers are selected.  VCA believes that the primary competitive factors in
connection with animal hospitals are convenient location, recommendation of
friends, reasonable fees, quality of care and convenient hours.  VCA's primary
competitors for its animal hospitals in most markets are individual
practitioners or small, regional multi-clinic practices.  In addition, certain
national companies in the pet care industry, including the operators of super-
stores, are developing multi-regional networks of animal hospitals in markets
which include VCA's animal hospitals.  Among veterinary diagnostic laboratories,
VCA believes that quality, price and the time required to report results are the
major competitive factors.  There are many clinical laboratory companies which
provide a broad range of laboratory testing services in the same markets
serviced by VCA.  In addition, several national companies provide on-site
diagnostic equipment that allows veterinarians to perform their own laboratory
tests.  VCA's major competitors in the premium pet food industry are Hill's and
Iams, both of which have extensive experience in the manufacture of premium pet
food and possess research and development, marketing and financial resources far
greater than that of Vet's Choice.

GOVERNMENT REGULATION

          The laws of some states prohibit veterinarians from splitting fees
with non-veterinarians and prohibit business corporations from providing
veterinary services through the direct employment of veterinarians.  These laws
and their interpretations vary from state to state and are enforced by the
courts and by regulatory authorities with broad discretion.  Although VCA and
Pet Practice believe their respective operations as currently conducted are in
material compliance with existing applicable laws, there can be no assurance
that VCA's and Pet Practice's existing operational structure will not be
successfully challenged in one or more states as constituting the unlicensed
practice of veterinary medicine.  Such a determination in a state could
adversely affect the operations of VCA and the combined business through the
assessment of fines or penalties against VCA or the combined business or the
possible requirement of divestiture of VCA's operations in the state.  In
addition, there can be no assurance that state legislation or regulations will
not change so as to restrict VCA's or, in the future, the combined business'
existing operations or the expansion of such operations.

ANTI-TAKEOVER EFFECT

          A number of provisions of VCA's Certificate of Incorporation and
bylaws and certain Delaware laws and regulations relating to matters of
corporate governance, certain rights of directors and the issuance of preferred
stock without stockholder approval, may be deemed to have and may have the
effect of making more difficult, and thereby discouraging, a merger, tender
offer, proxy contest or assumption of control and change of incumbent
management, even when stockholders other than VCA's principal stockholders
consider such a transaction to be in their best interest.  In addition, H.J.
Heinz Company has an option to purchase VCA's interest in the Vet's Choice joint
venture upon the occurrence of a change in control (as defined in the joint

                                       27
<PAGE>
 
venture agreement), which may have the same effect.  Accordingly, stockholders
may be deprived of an opportunity to sell their shares at a substantial premium
over the market price of the shares.

IMPACT OF SHARES ELIGIBLE FOR FUTURE SALE

          Future sales by existing stockholders could adversely affect the
prevailing market price of the VCA Common Stock.  As of March 31, 1996, VCA had
12,873,129 shares of common stock outstanding, most of which are either freely
tradeable in the public market without restriction or tradeable in accordance
with Rule 144 under the Act.  There are also 159,197 shares which VCA is
obligated to issue in connection with certain acquisitions; 583,333 shares
issuable upon conversion of outstanding preferred stock; 1,505,821 shares of VCA
Common Stock issuable upon exercise of outstanding stock options; 1,607,983
shares of VCA Common Stock issuable upon exercise of outstanding warrants; and
6,635 shares issuable upon conversion of convertible notes.  Shares may also be
issued under price guarantees delivered in connection with acquisitions.  These
shares will be eligible for immediate sale upon issuance.  In addition, if the
Pets' Rx and the Pet Practice transactions are consummated, VCA will be
obligated to issue an aggregate of approximately 801,000 shares (subject to
adjustment) and approximately 3,273,000 shares (assuming the VCA Common Stock
has an average price at that time of $26.375), respectively.  In addition, on
April 17, 1996, VCA issued $84.4 million of 5.25% convertible subordinated
debentures which are convertible into 2,457,060 shares of VCA Common Stock at a
rate of $34.35 per share.

POSSIBLE VOLATILITY OF STOCK PRICE

          The market price of the VCA Common Stock could be subject to
significant fluctuations caused by variations in quarterly operating results,
litigation involving VCA, announcements by VCA or its competitors, general
conditions in the companion animal health care industry and other factors.  The
stock market in recent years has experienced extreme price and volume
fluctuations that have often been unrelated or disproportionate to the operating
performance of publicly traded companies.  The broad fluctuations may adversely
affect the market price of the VCA Common Stock.  See "MARKET PRICE
INFORMATION."

                                       28
<PAGE>
 
                         THE MEETINGS OF STOCKHOLDERS

GENERAL

          This Joint Proxy Statement/Prospectus is being furnished to holders of
VCA Common Stock in connection with the solicitation of proxies by the VCA Board
for use at the VCA Annual Meeting to be held on July 19, 1996, at VCA's offices
located at 3420 Ocean Park Boulevard, Suite 1000, Santa Monica, California
90405, commencing at 10:00 a.m., local time, and at any adjournment or
postponement thereof.

          This Joint Proxy Statement/Prospectus is also being furnished to
holders of Pet Practice Common Stock in connection with the solicitation of
proxies by the Pet Practice Board for use at the Pet Practice Special Meeting to
be held on July 19, 1996 at the Park Ridge Hotel, 480 North Gulph Road, King of
Prussia, Pennsylvania 19406, commencing at 2:00 p.m., local time, and at any
adjournment or postponement thereof.

          This Joint Proxy Statement/Prospectus and the accompanying forms of
proxy are first being mailed to stockholders of VCA and Pet Practice on or about
June __, 1996.

MATTERS TO BE CONSIDERED AT THE MEETINGS

          VCA Annual Meeting.  At the VCA Annual Meeting, holders of VCA Common
Stock will consider and vote upon:

          (i) the issuance of shares of VCA Common Stock in exchange for shares
of Pet Practice Common Stock pursuant to the Merger Agreement (the "Merger
Proposal");

          (ii) the election of two Class II Directors to the VCA Board (the
"Director Proposal");

          (iii)  the amendment to VCA's Certificate of Incorporation to increase
the number of authorized shares of VCA Common Stock from 30,000,000 to
75,000,000 and to increase the number of authorized shares of VCA Preferred
Stock from 1,000,000 to 2,000,000 (the "Certificate Proposal");

          (iv) the adoption of the VCA 1996 Stock Incentive Plan;

          (v) the adoption of the VCA 1996 Employee Stock Purchase Plan
(collectively with the proposal set forth in clause (iv) above, the "Plan
Proposals"); and

          (vi)  such other matters as may properly be brought before the VCA
Annual Meeting, or any postponements or adjournments of the VCA Annual Meeting.

          Pet Practice Special Meeting.  At the Pet Practice Special Meeting,
holders of Pet Practice Common Stock will consider and vote upon a proposal to
approve and adopt the Merger Agreement and such other matters as may properly be
brought before the Pet Practice Special Meeting, or any postponements or
adjournments of the Pet Practice Special Meeting.

          Boards of Directors' Recommendations.  THE VCA BOARD HAS UNANIMOUSLY
APPROVED THE MERGER PROPOSAL, THE DIRECTOR PROPOSAL, THE CERTIFICATE PROPOSAL
AND THE PLAN PROPOSALS AND RECOMMENDS A VOTE FOR APPROVAL OF SUCH PROPOSALS.

          THE PET PRACTICE BOARD HAS UNANIMOUSLY APPROVED THE MERGER AGREEMENT
AND RECOMMENDS A VOTE FOR APPROVAL AND ADOPTION OF THE MERGER AGREEMENT.

                                       29
<PAGE>
 
RECORD DATES; VOTING RIGHTS; VOTES REQUIRED FOR APPROVAL

          VCA.  The VCA Board has fixed the close of business on May 20, 1996,
as the VCA Record Date.  Only holders of record of shares of VCA Common Stock on
the VCA Record Date are entitled to notice of and to vote at the VCA Annual
Meeting.  As of May 20, 1996, there were 13,179,882 shares of VCA Common Stock
outstanding and entitled to vote held by approximately 356 stockholders of
record.  Each holder of record as of the VCA Record Date of VCA Common Stock is
entitled to cast one vote per share.  The presence, in person or by proxy, of
the holders of a majority of the outstanding shares of VCA Common Stock entitled
to vote is necessary to constitute a quorum at the VCA Annual Meeting.

          The approval of the Certificate Proposal will require the affirmative
vote of the holders of a majority of the outstanding shares of VCA Common Stock.
Approval of the Director Proposal will require the affirmative vote of a
plurality of the votes cast for the election of directors at the VCA Annual
Meeting.  The approval of the Merger Proposal and the Plan Proposals will
require the affirmative vote of the holders of a majority of the shares of VCA
Common Stock present at the VCA Annual Meeting and entitled to vote.  The
approval of the issuance of shares of VCA Common Stock pursuant to the Merger is
required by the rules of the National Association of Securities Dealers, Inc.
governing corporations with securities listed on the Nasdaq National Market.

          As of May 20, 1996, directors and executive officers of VCA, and their
affiliates as a group beneficially owned 810,017 shares of VCA Common Stock
(excluding shares subject to exercisable options), or approximately 6.1% of the
shares of VCA Common Stock outstanding as of such date.  Each of the directors
and executive officers of VCA has advised VCA that he or she intends to vote or
direct the vote of all shares of VCA Common Stock over which he or she has
voting control for approval of the Merger Proposal, the Certificate Proposal,
the Director Proposal and the Plan Proposals.

          As of May 20, 1996, Pet Practice owned no outstanding shares of VCA
Common Stock.

          Pet Practice.  The Pet Practice Board has fixed the close of business
on May 20, 1996 as the Pet Practice Record Date.  Only holders of record of
shares of Pet Practice Common Stock on the Pet Practice Record Date are entitled
to notice of and to vote at the Pet Practice Special Meeting.  On May 20, 1996,
there were 8,623,720 shares of Pet Practice Common Stock outstanding and
entitled to vote at the Pet Practice Special Meeting held by approximately 68
stockholders of record.  Each holder of record as of the Pet Practice Record
Date of Pet Practice Common Stock is entitled to cast one vote per share.  The
presence, in person or by proxy, of the holders of a majority of the outstanding
shares of Pet Practice Common Stock entitled to vote is necessary to constitute
a quorum at the Pet Practice Special Meeting.

          Under the DGCL, the affirmative vote, in person or by proxy, of the
holders of a majority of the shares of Pet Practice Common Stock outstanding on
the Pet Practice Record Date and entitled to vote on the Merger and the Merger
Agreement is required to approve and adopt the Merger and the Merger Agreement.

          In connection with the Merger Agreement, the Principal Stockholder,
the holder of approximately 41.8% of the outstanding shares of Pet Practice
Common Stock, has executed and delivered an irrevocable proxy (the "Proxy") to
VCA to vote its shares in favor of the Merger.

          As of May 20, 1996, directors and executive officers of Pet Practice
and their affiliates as a group beneficially owned approximately 3,901,567
shares of Pet Practice Common Stock (including the 3,600,000 shares beneficially
owned by the Principal Stockholder which are subject to the Proxy, but excluding
shares subject to exercisable options), or approximately 45.2% of the shares of
Pet Practice Common Stock outstanding as of the Pet Practice Record Date.  Each
of the directors and executive officers of Pet Practice has advised Pet Practice
that he or she intends to vote or direct the vote of all shares of Pet Practice
Common stock over which he or she has voting control for approval and adoption
of the Merger Agreement.

          As of May 20, 1996, VCA owned no outstanding shares of Pet Practice
Common Stock.

          Effects of Abstentions and "Broker Non-Votes."  At the VCA Annual
Meeting, (i) in determining whether the Certificate Proposal has received the
requisite number of affirmative votes, abstentions and broker non-votes will
have the same effect as a vote against such Proposal; (ii) in determining
whether the Director Proposal has received the requisite number of affirmative
votes, abstentions and broker non-votes will have no effect on the outcome of
the vote on the Director Proposal; and (iii) in

                                       30
<PAGE>
 
determining whether the Merger Proposal or a particular Plan Proposal has
received the requisite number of affirmative votes, (a) abstentions will be
counted and will have the same effect as a vote against such Proposal and (b)
broker non-votes will have no effect on the outcome of the vote on such
Proposal.  At the Pet Practice Special Meeting, in determining whether the
proposal to approve and adopt the Merger Agreement has received the requisite
number of affirmative votes, abstentions and broker non-votes will have the same
effect as a vote against such proposal.  At both the VCA Annual Meeting and the
Pet Practice Special Meeting, abstentions and broker non-votes will be counted
for purposes of determining the presence or absence of a quorum.

PROXIES

          This Joint Proxy Statement/Prospectus is being furnished to VCA and
Pet Practice stockholders in connection with the solicitation of proxies by and
on behalf of the VCA Board and the Pet Practice Board for use at the VCA Annual
Meeting and the Pet Practice Special Meeting, respectively.

          All shares of VCA Common Stock and Pet Practice Common Stock which are
entitled to vote and are represented at the relevant stockholder meeting by
properly executed proxies received prior to or at the relevant stockholder
meeting, and not revoked, will be voted at such stockholder meeting in
accordance with the instructions indicated on such proxies.  If no instructions
are indicated (other than in the case of broker non-votes), such proxies will be
voted:

          (i) in the case of the VCA Annual Meeting, for approval of the Merger
Proposal, the Certificate Proposal, the Director Proposal and the Plan
Proposals; and

          (ii) in the case of the Pet Practice Special Meeting, for approval and
adoption of the Merger Agreement.

          Proxies may be delivered by United States mail or courier service, in
the case of VCA stockholders, to Continental Stock Transfer & Trust Company, 2
Broadway, 19th Floor, New York, New York 10004 or by facsimile to (212) 509-5150
and in the case of Pet Practice stockholders, to American Stock Transfer & Trust
Company, 40 Wall Street, New York, New York 10005 or by facsimile to (718) 921-
8331.

          If any other matters are properly presented at the stockholder
meetings for consideration, including, among other things, consideration of a
motion to adjourn either stockholder meeting to another time and/or place
(including, without limitation, for the purpose of soliciting additional
proxies), the persons named in the enclosed forms of proxy and acting thereunder
will have discretion to vote on such matters in accordance with their best
judgment.

          Any proxy given pursuant to this solicitation may be revoked by the
person giving it at any time before it is voted.  Proxies may be revoked by (i)
filing with the Secretary of VCA or Pet Practice, as the case may be, c/o
Continental Stock Transfer & Trust Company, 2 Broadway, 19th Floor, New York,
New York 10004 (or if by facsimile, to (212) 509-5150) or c/o American Stock
Transfer & Trust Company, 40 Wall Street, New York, New York 10005 or by
facsimile to (718) 921-8331, respectively, at or before the taking of the vote
at the relevant stockholder meeting, a written notice of revocation bearing a
later date than the proxy, (ii) duly executing a later dated proxy relating to
the same shares and delivering it to the Secretary of VCA or Pet Practice, as
the case may be, c/o Continental Stock Transfer & Trust Company, 2 Broadway,
19th Floor, New York, New York 10004 (or if by facsimile, to (212) 509-5150) or
c/o American Stock Transfer & Trust Company, 40 Wall Street, New York, New York
10005 (or by facsimile to (718) 921-8331), respectively, before the taking of
the vote at the relevant stockholder meeting or (iii) attending a stockholder
meeting and voting in person (although attendance at a stockholder meeting will
not in and of itself constitute a revocation of a proxy).  Any written notice of
revocation or subsequent proxy should be sent so as to be delivered in the case
of VCA stockholders, to Secretary, Veterinary Centers of America, Inc., c/o
Continental Stock Transfer & Trust Company, 2 Broadway, 19th Floor, New York,
New York 10004 (or if by facsimile, to (212) 509-5150), and in the case of Pet
Practice stockholders, to Secretary, The Pet Practice, Inc., c/o American Stock
Transfer & Trust Company, 40 Wall Street, New York, New York 10005 or by
facsimile to (718) 921-8331, at or before the taking of the vote at the relevant
stockholder meeting.

                                       31
<PAGE>
 
NO DISSENTERS' RIGHTS

          No holder of Pet Practice Common Stock will have any dissenters'
rights in connection with, or as a result of, the matters to be acted upon at
the Pet Practice Special Meeting.

PROXY SOLICITATION

          All expenses of this solicitation, including the cost of preparing and
mailing this Joint Proxy Statement/Prospectus will be borne by VCA and Pet
Practice.  In addition to solicitation by mail, proxies may be solicited in
person by directors, officers and employees of VCA or Pet Practice or by
telephone, telegram, facsimile or other means of communication.  Such directors,
officers or employees will not be additionally compensated, but may be
reimbursed for reasonable out-of-pocket expenses incurred in connection with
such solicitation.  Arrangements will be made with brokerage houses and other
custodians, nominees and fiduciaries to send proxy material to beneficial
owners; and VCA or Pet Practice, as the case may be, will, upon request,
reimburse them for their reasonable expenses in so doing.  VCA and Pet Practice
each have retained Georgeson & Company Inc. to aid in the solicitation of
proxies at a fee in the aggregate of approximately $11,000 plus expenses.  To
the extent necessary in order to ensure sufficient representation at the VCA
Annual Meeting or the Pet Practice Special Meeting, VCA or Pet Practice, as the
case may be, may request by telephone or telegram the return of proxies.  The
extent to which this will be necessary depends entirely upon how promptly
proxies are returned.

          HOLDERS OF PET PRACTICE COMMON STOCK SHOULD NOT SEND ANY CERTIFICATES
REPRESENTING PET PRACTICE COMMON STOCK WITH THE ENCLOSED PROXY CARD.  IF THE
TRANSACTION IS APPROVED, A LETTER OF TRANSMITTAL WILL BE MAILED AFTER THE
EFFECTIVE TIME TO EACH PERSON WHO WAS A HOLDER OF OUTSTANDING SHARES OF PET
PRACTICE COMMON STOCK IMMEDIATELY PRIOR TO THE EFFECTIVE TIME.  PET PRACTICE
STOCKHOLDERS SHOULD SEND CERTIFICATES REPRESENTING PET PRACTICE COMMON STOCK TO
THE EXCHANGE AGENT ONLY AFTER THEY RECEIVE, AND IN ACCORDANCE WITH THE
INSTRUCTIONS CONTAINED IN, THE LETTER OF TRANSMITTAL.

                                   THE MERGER

          This section of the Joint Proxy Statement/Prospectus describes certain
of the more important aspects of the Merger.  The following description does not
purport to be complete and the reader is encouraged to review the entire Merger
Agreement, a copy of which is set forth in Appendix A to this Joint Proxy
                                           -------- -                    
Statement/Prospectus, and the other Appendices to this Joint Proxy
Statement/Prospectus, all of which are incorporated herein by this reference.

BACKGROUND OF THE MERGER

          VCA has been one of the premier owners and operators of animal
hospitals in the United States for several years.  Pet Practice has also been a
premier owner-operator of animal hospitals in the United States for over two
years.  Both companies have been engaged in a business strategy emphasizing
growth by acquisition and consolidation of the industry.  The possibility of a
strategic combination was first raised in general terms in several conversations
in January 1996 between senior executives of VCA and Pet Practice at a
professional veterinary conference they were both attending.  Following this
conversation, the senior management teams of both companies began exploring the
feasibility of a strategic business combination.

          On January 22, 1996, as part of a regularly scheduled VCA board
meeting, the management of VCA made an initial presentation on the
considerations regarding, and received the questions and comments of the VCA
Board with respect to, a possible combination with Pet Practice, including (i) a
preliminary analysis of the strategic factors associated with a possible
strategic business combination, (ii) a preliminary comparative review of VCA's
and Pet Practice's market capitalization, revenues, earnings, and margins, and
(iii) a preliminary presentation regarding each companies' respective
positioning in their respective market places.  The VCA Board authorized and
instructed management to explore the possibility of combining VCA with Pet
Practice and to continue discussions with representatives of Pet Practice.

          Also, during this period, VCA had been considering a concurrent, but
unrelated, acquisition of Pets' Rx.  Discussions between representatives of VCA
and representatives of Pets' Rx continued through February 27, 1996, at which
time an

                                       32
<PAGE>
 
Agreement and Plan of Reorganization was entered into between VCA and Pets' Rx.
On April 11, 1996, May 23, 1996 and June 7, 1996, the Agreement and Plan of
Reorganization was amended in a writing signed by representatives of both VCA
and Pets' Rx.  The closing of the merger between VCA and Pets' Rx is not
conditioned upon the consummation of the Merger with Pet Practice and the
closing of the Merger between VCA and Pet Practice is not conditioned upon the
consummation of the merger between VCA and Pets' Rx.

          There were ongoing discussions between Pet Practice management and
members of the Pet Practice Board from time to time in late January 1996 about a
possible business combination with VCA.  On January 28, 1996 and during the
following week, Robert L. Antin, Chief Executive Officer of VCA, and Mr. Nagy as
well as Peter J. Cohen, President and Chief Executive Officer of Pet Practice,
had various telephone conversations during which they each expressed their
interest in pursuing exploratory discussions regarding a proposed transaction.
On February 5, 1996, VCA and Pet Practice executed a non-disclosure agreement
providing for the exchange of non-public information.

          On February 6, 1996, as part of a regularly scheduled meeting of the
Pet Practice Board which convened telephonically, Mr. Nagy, Chairman of the Pet
Practice Board, made an initial presentation to the Pet Practice Board
regarding, and received the questions and comments of the Pet Practice Board
with respect to, a possible combination with VCA.  The Pet Practice Board
authorized Mr. Nagy and other members of Pet Practice's management to pursue
discussions with VCA with respect to a possible combination.

          On February 14, 1996, several senior executives of VCA met with senior
executives of Pet Practice in Los Angeles, California.  Discussions at this
meeting focused on long-term business and market strategies and possible
synergies that could be realized through a business combination.

          From February 14, 1996 through February 28, 1996, representatives of
VCA and Pet Practice and their respective counsel and financial advisors
conducted preliminary business, legal and financial due diligence regarding a
proposed Merger.  On February 28, 1996, senior executives of VCA and senior
executives of Pet Practice and their respective counsel and financial advisors,
met in New York City to discuss preliminarily the basis upon which a possible
strategic business combination might be possible and to discuss the
organizational, operational and financial issues attendant thereto.

          Between February 28, 1996 and March 21, 1996, VCA's and Pet Practice's
legal counsel and executive officers had further discussions regarding the terms
of a proposed Merger Agreement and related documents, VCA's and Pet Practice's
financial advisors had further discussions regarding valuation issues relevant
to negotiation of a mutually acceptable Exchange Ratio, and VCA and Pet
Practice, and their respective counsel, accountants and financial advisors
conducted business, legal and financial due diligence and exchanged draft Merger
Agreements.  The Exchange Ratio was determined by negotiation between the
representatives of VCA and Pet Practice and not by any third party.  During this
same period, there were numerous discussions between Mr. Nagy and the members of
the Pet Practice Board on an individual basis concerning the status of the
ongoing negotiations with VCA and the terms of the draft Merger Agreement and
the proposed Exchange Ratio.  Throughout this period, the Pet Practice Board
instructed Mr. Nagy that it was reasonable and appropriate for Pet Practice
management to proceed with negotiations.

          On March 18, 1996, the VCA Board met and heard presentations from
management and from its financial and legal advisors concerning the ongoing
negotiations with Pet Practice.  VCA's financial advisor presented a preliminary
evaluation of the proposed Exchange Ratio and the draft Merger Agreement and the
VCA Board discussed various factors and alternatives to the proposed Merger.
The VCA Board reviewed the terms of the draft Merger Agreement and related
valuation issues.  The VCA Board concluded that it was reasonable and
appropriate for the officers to proceed with negotiations.

          Negotiations regarding the terms of the proposed Merger Agreement were
held in separate sessions between March 18, 1996 and March 21, 1996.  On March
21, 1996, VCA and Pet Practice reached preliminary agreement with one another on
the terms of the proposed Merger Agreement, including the Exchange Ratio,
subject to the approval of the respective boards of directors.

          The Merger was unanimously approved at a special meeting of the VCA
Board held on March 21, 1996 at 7:00 p.m., Pacific Standard Time, at the
executive offices of VCA.  At that meeting, NatWest reviewed in detail its
financial analysis of the proposed Merger.  The VCA Board received a written
opinion from NatWest that, as of March 21, 1996 and based upon

                                       33
<PAGE>
 
and subject to certain matters stated therein, the consideration to be paid by
VCA pursuant to the Merger Agreement is fair to VCA from a financial point of
view.  The VCA Board reviewed and fully discussed the terms of the Merger
Agreement and then unanimously approved the Merger Agreement and the Merger.

          On March 21, 1996 at 6:00 p.m., Eastern Standard Time, a special
meeting of the Pet Practice Board was held in New York at the offices of Haythe
& Curley, Pet Practice's legal advisors.  At the meeting, Mr. Nagy made a brief
address to the Pet Practice Board in which he reiterated his views of the
strategic advantages and business fit of the proposed combination previously
discussed on an individual basis with the members of the Pet Practice Board.
Smith Barney then made a presentation to the Pet Practice Board of its financial
analysis and rendered to the Pet Practice Board its oral opinion (which opinion
was subsequently confirmed by delivery of a written opinion dated March 21,
1996) to the effect that, as of such date and based upon and subject to certain
matters stated in such opinion, the Exchange Ratio was fair, from a financial
point of view, to the holders of Pet Practice Common Stock.  (See "Opinions of
Financial Advisors--Pet Practice.")  Pet Practice's legal advisors reviewed
various legal considerations with the Pet Practice Board as well as the
significant provisions of the Merger Agreement.  The Pet Practice Board voted
unanimously to approve and adopt the Merger and the Merger Agreement and to
recommend that the Pet Practice stockholders vote in favor of the Merger and
approve and adopt the Merger Agreement.

          On the evening of March 21, 1996, VCA and Pet Practice executed and
delivered the Merger Agreement.  The Merger Agreement was announced by the
issuance of a joint press release at 7:30 a.m., New York time, on March 22,
1996.

VCA'S REASONS FOR THE MERGER; RECOMMENDATIONS OF THE VCA BOARD

          The VCA Board has unanimously approved the Merger and determined that
the Merger is advisable and fair and in the best interests of VCA and its
stockholders.  The VCA Board unanimously recommends to the VCA stockholders that
they vote FOR the approval and the adoption of the Merger Proposal.  The VCA
Board believes that the Merger will enhance VCA's position as the leading animal
health care company in the United States.  Upon consummation of the Merger, the
combined business will have over 145 animal hospitals making it the largest
chain of animal hospitals in the United States.  The combined business will be
further enhanced by the consummation of the merger with Pets' Rx, which will
increase the size of the VCA chain to in excess of 160 animal hospitals.

          The Merger also will accelerate the expansion of VCA's hospital
operations into several new markets and strengthen VCA's position in the
Chicago, Boston and Florida areas and the mid-Atlantic states.  The combined
business' animal hospital operations will extend to 20 states located in each
region of the country.

          The VCA Board also considered the positive effect on VCA's
complementary businesses, veterinary laboratory services and the marketing and
distribution of premium pet food.  The expanded veterinary hospital operations
provide the combined business new markets for its laboratory services and pet
food and provide a basis for expansion into additional geographic regions.  The
Merger also provides the combined business with significant opportunities to
realize the efficiencies and synergies available by operating with one corporate
overhead.  VCA believes that it can realize significant cost savings in the
combination of the two companies, particularly in the areas of purchasing (both
medical supplies and office supplies), insurance, communications and other
administrative expense.  VCA believes economies can also be realized in such
areas as marketing, advertising, training and continuing education.

          The VCA Board also considered negative factors relating to the Merger,
including (i) the risks that the benefits sought in the Merger would not be
fully achieved, (ii) the risk that the Merger would not be consummated, and the
effect of the public announcement of the Merger on VCA's sales and operating
results, (iii) the risks attendant to the integration of the two companies and
possibly a third company, Pets' Rx, and (iv) the other risks described above
under "RISK FACTORS."  The VCA Board believes that these risks were outweighed
by the potential benefits to be gained by the Merger.

          In the course of its deliberations during board meetings held on
January 22, 1996, March 18, 1996 and March 21, 1996, the VCA Board reviewed with
VCA management a number of factors relevant to the Merger, including the
strategic overview and prospects for VCA.  The VCA Board also considered among
other factors (i) information concerning VCA's and Pet Practice's respective
businesses, prospects, financial performance and condition, operations,
management and competitive position; (ii) the financial condition, results of
operations and businesses of VCA and Pet Practice before, and after, giving
effect to the Merger; and (iii) current financial market conditions and
historical market prices, volatility and trading information with

                                       34
<PAGE>
 
respect to the VCA Common Stock and the Pet Practice Common Stock.  In addition,
the directors reviewed the consideration to be issued to Pet Practice's
stockholders in the Merger and the principal terms of the Merger Agreement and
related agreements.  The VCA Board considered the financial analyses prepared by
NatWest, including the written opinion of NatWest delivered at the March 21,
1996 meeting of the VCA Board, to the effect that, as of such date and based
upon and subject to certain matters stated therein, the consideration to be paid
by VCA pursuant to the Merger Agreement is fair to VCA from a financial point of
view.  The VCA Board also took into account that VCA would be the surviving
corporation and its board of directors and officers would continue as senior
management of the combined business.

          In view of the wide variety of factors, both positive and negative,
considered by the VCA Board, the VCA Board did not find it practical to, and did
not, quantify or otherwise assign relative weights to the specific factors
considered.

          THE VCA BOARD UNANIMOUSLY RECOMMENDS THAT VCA STOCKHOLDERS VOTE TO
APPROVE THE MERGER PROPOSAL.

                                       35
<PAGE>
 
PET PRACTICE'S REASONS FOR THE MERGER; RECOMMENDATIONS OF THE PET PRACTICE BOARD

          THE PET PRACTICE BOARD HAS UNANIMOUSLY APPROVED AND ADOPTED THE MERGER
AND THE MERGER AGREEMENT AND UNANIMOUSLY RECOMMENDS THAT PET PRACTICE
STOCKHOLDERS VOTE FOR APPROVAL AND ADOPTION OF THE MERGER AND THE MERGER
AGREEMENT.

          Prior to taking action on the Merger, the Pet Practice Board reviewed
a draft of the Merger Agreement and received presentations from, and reviewed
the terms and conditions of the transactions contemplated by the Merger
Agreement with, Pet Practice management and Pet Practice's legal and financial
advisors.

          The Pet Practice Board considered a number of factors in reaching the
recommendations described above. The factors considered favorably by the Pet
Practice Board include the following:

          i)   the opportunity for Pet Practice stockholders to receive an
     equity interest in a larger, financially stronger, veterinary services
     company and the prospects for that combined company;

          ii)  the financial condition, results of operations and prospects of
     Pet Practice as an independent public company, including the dependency of
     a portion of Pet Practice's projected future growth on effecting the
     acquisition of a substantial number of veterinary hospitals each year and
     the constraints on its ability to finance that growth, including the
     dilutive impact of additional equity financing;

          iii) the similar cultures and strategies of Pet Practice's and VCA's
     management;

          iv)  the financial condition, results of operations and prospects of
     VCA;

          v)   the synergies created by combining the management systems
     possessed by each of VCA and Pet Practice, which would create a more highly
     developed infrastructure than on a stand-alone basis without having to
     incur costs and management time to duplicate, and which could be utilized
     without significant additional development expense;

          vi)  the combined benefits from VCA's and Pet Practice's pooling of
     their experienced managers to assist in managing their projected rapid
     growth, as well as the significant number of veterinarians in the combined
     network, and their recruitment capabilities, which could help service their
     recruitment needs;

          vii) the ability to provide enhanced levels of care by offering a more
     comprehensive range of veterinary services through a combination of the
     various operations of the two companies;

          viii)  recent and historical market prices of Pet Practice Common
     Stock and VCA Common Stock;

          ix)  based upon the market prices of Pet Practice Common Stock and VCA
     Common Stock at the close of business on March 21, 1996, Pet Practice
     stockholders would receive a premium in excess of 12.67% over the then
     closing sale price of Pet Practice Common Stock of $8.875 per share;

          x)   the oral opinion of Smith Barney (which opinion was subsequently
     confirmed by delivery of a written opinion dated March 21, 1996) to the
     effect that, as of the date of such opinion and based upon and subject to
     certain matters stated in such opinion, the Exchange Ratio was fair, from a
     financial point of view, to the holders of Pet Practice Common Stock;

          xi)  the tax-free nature of the proposed transaction; and

          xii) the negotiations regarding the Merger and the Merger Agreement.

          In evaluating VCA and its business, the Pet Practice Board also
considered the following factors to be generally negative:

                                       36
<PAGE>
 
          (i) the value placed on the Pet Practice Common Stock implicit in the
     proposed Exchange Ratio compared with the initial public offering price of
     Pet Practice Common Stock; and

          (ii) the risks attendant to the integration of the two companies.

          The members of the Pet Practice Board evaluated the factors listed
above in light of their knowledge of the business and operations of Pet Practice
and their business judgment. In view of the variety of factors considered in
connection with their respective evaluations of the transaction, the Pet
Practice Board found it impracticable to, and did not, quantify or otherwise
attempt to assign relative weights to the specific factors considered in its
determination. However, the Pet Practice Board placed special emphasis on the
complementary strengths of the Pet Practice and VCA and the potential for
revenue and profit enhancing synergies to result from a combination, the
prospects for the Pet Practice remaining as an independent public company and
its ability to sustain revenue and earnings growth, and the opportunity provided
by the Merger for Pet Practice stockholders to maintain, on a tax-free basis, an
equity interest in a combined enterprise that has greater assets and financial
resources, a more diversified position in the veterinary services industry and
for which there will be a larger public market with respect to its common stock
than, in each case, currently exists for Pet Practice.


          THE PET PRACTICE BOARD UNANIMOUSLY RECOMMENDS THAT PET PRACTICE
STOCKHOLDERS VOTE TO APPROVE AND ADOPT THE MERGER AGREEMENT.


OPINIONS OF FINANCIAL ADVISORS

          VCA

          VCA engaged NatWest to render financial advisory services and to
render a written opinion (the "Fairness Opinion") as to the fairness, from a
financial point of view, to VCA, of the consideration to be paid in the Merger.
NatWest is an internationally recognized investment banking firm with experience
in the valuation of businesses and their securities in connection with mergers,
acquisitions, sales and distributions of listed and unlisted securities, private
placements and valuations for corporate and other purposes.  VCA selected
NatWest to be its financial advisor in this transaction because of NatWest's
significant experience in providing investment banking services to companies in
the health care industry.

          NatWest rendered the Fairness Opinion on March 21, 1996 to the effect
that, as of such date and based upon and subject to certain matters set forth
therein, the consideration to be paid by VCA pursuant to the Merger Agreement is
fair to VCA from a financial point of view.  NatWest's opinion does not address
any other aspect of the Merger or the related transactions and does not
constitute a recommendation to any stockholder as to how such stockholder should
vote at the VCA Annual Meeting.  The scope of NatWest's engagement and NatWest's
review of the transaction was limited as set forth in the Fairness Opinion.  The
complete text of the Fairness Opinion is included as Appendix B to this Joint
                                                     -------- -              
Proxy Statement/Prospectus and is incorporated herein by reference.
Stockholders of VCA are urged to read in its entirety the Fairness Opinion,
which sets forth the assumptions made and matters considered by NatWest.

          Upon consummation of the Merger, VCA will pay NatWest a fee (the
"Success Fee") for its services equal to 1.1% of the consideration to be paid by
VCA in the Merger.  VCA agreed to pay NatWest a fee of $200,000 (the "Fairness
Opinion Fee") upon delivery of the Fairness Opinion.  The Fairness Opinion Fee
shall be credited against the Success Fee.  NatWest shall bear the out-of-pocket
expenses incurred by it in connection with its engagement, including all fees
and expenses of its counsel.  VCA has agreed to indemnify NatWest against
certain expenses and liabilities in connection with its engagement.

          In arriving at the Fairness Opinion, and as the basis therefor,
NatWest, among other things, (i) reviewed the Merger Agreement; (ii) reviewed
historical financial and operating data of VCA and Pet Practice; (iii) reviewed
financial and operating forecasts with respect to Pet Practice provided to
NatWest by management representatives of VCA; (iv) considered public information
of selected comparable companies, and compared Pet Practice, from a financial
point of view, with such companies; (v) considered the terms, to the extent
publicly available, of selected transactions comparable to the Merger and
compared the

                                       37
<PAGE>
 
consideration to be paid by VCA with the consideration involved in such
transactions; (vi) reviewed market price data and trading activities for VCA's
and Pet Practice's Common Stock; and (vii) conducted such other financial
studies, analysis and investigations as NatWest deemed appropriate.  NatWest
also held discussions with management representatives and representatives of the
independent accountants of VCA and Pet Practice concerning the business and
prospects of Pet Practice and the strategic and operating benefits anticipated
by VCA to be derived from the Merger.

          NatWest was not engaged to verify independently the accuracy or
completeness of any information which it reviewed in arriving at the Fairness
Opinion, and in rendering such opinion it relied on the accuracy and
completeness of all such information without independent verification.  With
respect to the financial and operating forecasts provided to it, NatWest
assumed, with the VCA Board's approval, that they were reasonably prepared on
bases reflecting the best currently available estimates and good faith judgments
of the management of VCA as to the future financial and operating performance of
Pet Practice, consistent with historical data.  NatWest also assumed, with the
VCA Board's approval, that a reasonable likelihood exists that the strategic and
operating benefits anticipated by VCA to be derived from the Merger will be
realized.  NatWest was not engaged to conduct a physical inspection of any
properties or make an independent valuation or appraisal of the assets or
liabilities, including any contingent liabilities, of Pet Practice, nor were any
such valuations or appraisals furnished to NatWest.  NatWest was not engaged to
review any legal, accounting or tax aspects of the Merger.  The Fairness Opinion
is based upon economic, monetary, regulatory and market conditions existing on
the date of such opinion.  No limitations were imposed by VCA on NatWest with
respect to the investigation made or procedures followed by NatWest.

          NatWest calculated the total value of the consideration to be paid by
VCA pursuant to the Merger Agreement to be $86 million, based upon the closing
price of the VCA Common Stock of $25.75 on March 21, 1996.

          The following paragraphs summarize the significant qualitative and
quantitative analyses performed by NatWest in arriving at its opinion.  In its
analysis, NatWest made numerous assumptions with respect to VCA, Pet Practice,
general business, economic, market and financial conditions, industry
performance and other matters, many of which are beyond the control of the
parties to the Merger.  The Fairness Opinion and the financial analyses
performed by NatWest were only one of several factors considered by the VCA
Board in its evaluation of the Merger, and they should not be viewed as
determinative of the VCA Board's or VCA management's views with respect to the
consideration to be paid by VCA in the proposed Merger.

          Strategic Considerations.  In reaching its opinion as to the fairness
of the consideration to be paid by VCA, NatWest considered the strategic and
operating benefits anticipated by VCA to be realized from the Merger, and
assumed, with the approval of the VCA Board, that a reasonable likelihood exists
that such benefits will be realized.  Such anticipated benefits include the
enhancement of VCA's position as the leading animal health care company in the
United States, the combined business having over 145 animal hospitals and being
the largest chain of animal hospitals in the United States; the expansion of
VCA's hospital operations into several new markets and the strengthening of
VCA's position in the Chicago, Boston and Florida areas and the mid-Atlantic
states; the positive effect on VCA's complementary businesses, veterinary
laboratory services and the marketing and distribution of premium pet food; and
the significant opportunities to realize the efficiencies and synergies
available by operating with one corporate overhead.  NatWest was unable to, and
did not, quantify the extent of such anticipated benefits.

          Comparable Company Trading Multiple Analysis.  NatWest used VCA's
adjusted forecasts of Pet Practice's profitability in 1996 and 1997 to derive
implied purchase price multiples and compared those multiples to the trading
multiples of selected publicly traded companies.  The selected companies were
divided into two (2) groups:  a "Physician Practice Peer Group" of companies,
which consisted of Apogee, Inc., EMCR Holdings, Inc., FPA Medical Management,
Inc., MedCath, Inc.,  MedPartners, Inc., NovaCare, Inc., Occusystems, Inc.,
Orthodontic Centers of America, Inc., Pediatric Services of America, Inc. and
Physicians Resource Group, Inc.; and a "Pet Products Peer Group" of companies,
which consisted of Petco Animal Supplies, Inc. and PETsMART, Inc.  The Physician
Practice Peer Group and the Pet Products Peer Group are referred to herein as,
the "Comparable Companies."  NatWest believes that the Comparable Companies are
comparable in certain respects to Pet Practice, although none of them is, of
course, identical to Pet Practice.  Accordingly, a complete analysis of the
results of the calculations performed by NatWest cannot be limited to a
quantitative review of such results and involves considerations and judgments
concerning differences in financial and operating characteristics of the
Comparable Companies and other factors that could affect the public trading
value of the Comparable Companies.  In addition, the 1996 and 1997 earnings per
share ("EPS") estimates for the Comparable Companies are based on projections
prepared by research analysts using only publicly available information.
Accordingly, such estimates may or may not prove to be accurate.

                                       38
<PAGE>
 
          For the Comparable Companies, NatWest examined certain financial data
that was publicly available, including the last 12 months ("LTM") revenues, LTM
earnings before interest, taxes, depreciation and amortization ("EBITDA"), LTM
earnings before interest and taxes ("EBIT") and LTM EPS.  In view of the 1995
net loss sustained by Pet Practice, however, comparable LTM financial data for
Pet Practice did not exist.

          NatWest examined calendar year 1996 and 1997 analysts' projections of
EPS for the Comparable Companies published by First Call (an on-line data
service which compiles estimates developed by research analysts) and the per
share closing stock prices of the Comparable Companies on March 20, 1996.  Using
this data, NatWest calculated the price/earnings multiples for the respective
Peer Groups based on 1996 and 1997 EPS estimates for each of the Comparable
Companies.  NatWest observed that Pet Practice was projected to be only slightly
profitable in 1996 using VCA's adjusted forecast figures.

          Using the data for 1997, the Physician Practice Peer Group trading
multiples of projected EPS were as follows: the multiples ranged from 11.7x to
35.5x with a mean of 23.4x and a median of 24.4x.  The Pet Products Peer Group
trading multiples ranged from 29.2x to 30.1x with the mean and median both being
29.7x.

          NatWest used two scenarios provided by VCA of Pet Practice's adjusted
forecast 1997 financial performance to derive an implied purchase price
multiple.  The first case assumed 1997 Pet Practice earnings of approximately
$3.56 million and the more conservative second case assumed 1997 Pet Practice
earnings of $2.72 million.  These two cases yielded implied Pet Practice
purchase price multiples of 1997 earnings of 24.2x and 31.6x, respectively.

          Comparable Transaction Analysis.  NatWest considered the terms, to the
extent publicly available, of selected transactions comparable to the Merger and
sought to compare the consideration to be paid by VCA with the consideration
involved in such transactions.  In view of the 1995 net loss sustained by Pet
Practice, there was no basis for the comparison of transaction multiples.

          NatWest reviewed and analyzed the premiums paid per share above market
value in selected merger and acquisition transactions in the health care
industry (collectively, the "Comparable Transactions") and compared these
premiums paid to the premium to be paid for Pet Practice implied by an assumed
equity value of $10.00 per share of Pet Practice Common Stock.  For purposes of
the following calculations, market value equals the per share closing stock
price as of the relevant measuring date.  The Comparable Transactions and the
dates they were announced were as follows:  HealthSouth Corporation acquisition
of Advantage Health Corporation (December 1995); MedPartners/Mullikin, Inc.
acquisition of Pacific Physician Services, Inc. (December 1995); Living Centers
of America, Inc. acquisition of Rehability Corporation (April 1995); HealthSouth
Corporation acquisition of ReLife, Inc. (September 1994); NovaCare, Inc.
acquisition of RehabClinics, Inc. (October 1993); NovaCare, Inc. acquisition of
Rehab Systems Company (June 1991).  NatWest analyzed the premiums paid in these
transactions at three different times prior to the public announcement of the
transactions.  As of the date four (4) weeks prior to announcement of the
acquisitions, the premiums paid above market value ranged from 16.9% to 91.9%
with a mean of 48.2% and a median of 42.8%.  As of the date one week prior to
public announcement of the acquisitions, the premiums paid above market value
ranged from 15.4% to 87.6% with a mean of 39.5% and a median of 34.8%.  As of
the date one day prior to public announcement of the acquisitions, the premiums
paid above market value ranged from 12.2% to 74.4% with a mean of 33.4% and a
median of 31.1%.

          No company, transaction or business used in the "Comparable Company
Trading Multiple Analysis" or the "Comparable Transaction Analysis" as a
comparison is identical to VCA, Pet Practice or the Merger.  Accordingly, an
analysis of the foregoing results is not solely mathematical.  Rather, it
involves complex considerations and judgments concerning differences in
financial and operating characteristics and other factors that could affect the
acquisition, public trading or other values of the Comparable Companies,
Comparable Transactions or the business segment, company or transactions to
which they are being compared.

          Pro Forma Merger Analysis.  NatWest analyzed the financial impact
resulting exclusively from the Merger on the pro forma combined company's EPS
for 1996 and 1997 based on forecasts provided by VCA and compared the pro forma
EPS with VCA's EPS as projected by various research analysts.  NatWest
considered the pro forma merger analysis to be relevant to its fairness
determination because, among other things, such analysis estimated the extent to
which the transaction could be accretive or dilutive to the existing
stockholders of VCA.  This analysis indicated that in 1996 the pro forma impact
of the Merger could be dilutive.  The analysis further indicated that in 1997
the pro forma impact of the Merger could be accretive.  Using the first

                                       39
<PAGE>
 
scenario provided by VCA of Pet Practice's adjusted forecast 1997 earnings of
approximately $3.56 million, the impact of the Merger also could be accretive.
Using the more conservative second case provided by VCA of Pet Practice's
adjusted forecast 1997 earnings of approximately $2.72 million, the impact of
the Merger could be accretive.  The results of the pro forma merger analysis are
not necessarily indicative of future operating results or financial position and
variations could be material.

          Contribution Analysis.  NatWest analyzed, among other things, the
respective contributions of VCA and Pet Practice to the estimated revenue,
EBITDA, EBIT and net income of the combined company for the years 1995 through
1997.  This analysis indicated that in the years 1995 through 1997, VCA would
contribute approximately 69.4%, 70.8% and 70%, respectively, of revenue, 96%,
84.2% and 79.7%, respectively, of EBITDA, 100%, 89.9% and 82.7%, respectively,
of EBIT and 100%, 96.1% and 85.5%, respectively, of net income, and Pet Practice
would contribute approximately 30.6%, 29.2% and 30%, respectively, of revenue,
4%, 15.8% and 20.3%, respectively, of EBITDA, 0%, 10.1% 17.3%, respectively, of
EBIT and 0%, 3.9% and 14.5%, respectively, of net income of the combined
company.  Immediately following consummation of the Merger, stockholders of VCA
and Pet Practice would own approximately 80.1% and 19.9%, respectively, of the
combined company.

          The preparation of a fairness opinion involves various determinations
as to the most appropriate and relevant quantitative and qualitative methods of
financial analysis and the application of those methods to the particular
circumstances and, therefore, such an opinion is not readily susceptible to
partial analysis or summary description.  In arriving at its opinion, NatWest
did not attribute any particular weight to any analysis or factor considered by
it described above.  Subject to the matters set forth in the Fairness Opinion,
the judgments made by NatWest as to its analyses and the factors considered by
it caused NatWest to be of the opinion that the consideration payable by VCA in
the Merger, having a value of $86 million, based on the $25.75 closing price of
the VCA Common Stock on March 21, 1996, is fair, from a financial point of view,
to VCA.  NatWest believes that its analyses must be considered as a whole and
that considering any portion of such analyses and of the factors considered,
without considering all analyses and factors, could create a misleading or
incomplete view of the process underlying its opinion.  Any estimates contained
in these analyses are not necessarily indicative of actual values or predictive
of future results or values, which may be significantly more or less favorable
than as set forth herein.  Estimated values do not purport to be appraisals or
to reflect the prices at which businesses or companies may be sold in the future
and such estimates are inherently subject to uncertainty.

          NatWest has performed investment banking and financial advisory
services for VCA from time to time, for which it has received customary
compensation.  In the ordinary course of business, NatWest's affiliates actively
trade the securities of VCA and Pet Practice for their own account and the
accounts of their customers and, accordingly, may at any time hold a long or
short position in such securities.  NatWest may provide investment banking and
financial advisory services to VCA in the future.

          See Appendix B, "Opinion of National Westminster Bank PLC."  It is not
              -------- -                                                        
currently contemplated that such opinion will be updated.

          Pet Practice

          Smith Barney was retained by Pet Practice to act as its financial
advisor in connection with the Merger.  In connection with such engagement, Pet
Practice requested that Smith Barney evaluate the fairness, from a financial
point of view, to the holders of Pet Practice Common Stock of the consideration
to be received by such holders in the Merger.  On March 21, 1996, at a meeting
of the Pet Practice Board held to evaluate the proposed Merger, Smith Barney
delivered an oral opinion (subsequently confirmed by delivery of a written
opinion dated such date) to the Pet Practice Board to the effect that, as of the
date of such opinion and based upon and subject to certain matters stated
therein, the Exchange Ratio was fair, from a financial point of view, to the
holders of Pet Practice Common Stock.

          In arriving at its opinion, Smith Barney reviewed the Merger Agreement
and held discussions with certain senior officers, directors and other
representatives and advisors of Pet Practice and certain senior officers and
other representatives and advisors of VCA concerning the businesses, operations
and prospects of Pet Practice and VCA.  Smith Barney examined certain publicly
available business and financial information relating to Pet Practice and VCA as
well as certain financial forecasts and other data for Pet Practice and VCA
which were provided to Smith Barney by or otherwise discussed with the
respective managements of Pet Practice and VCA, including information relating
to certain strategic implications and operational

                                       40
<PAGE>
 
benefits anticipated to result from the Merger.  Smith Barney reviewed the
financial terms of the Merger as set forth in the Merger Agreement in relation
to, among other things: current and historical market prices and trading volumes
of Pet Practice Common Stock and VCA Common Stock; the respective companies'
historical and projected earnings and operating data; and the capitalization and
financial condition of Pet Practice and VCA.  Smith Barney also considered, to
the extent publicly available, the financial terms of certain other similar
transactions recently effected which Smith Barney considered relevant in
evaluating the Merger and analyzed certain financial, stock market and other
publicly available information relating to the businesses of other companies
whose operations Smith Barney considered relevant in evaluating those of Pet
Practice and VCA.  Smith Barney also evaluated the potential pro forma financial
impact of the Merger on VCA.  In addition to the foregoing, Smith Barney
conducted such other analyses and examinations and considered such other
financial, economic and market criteria as Smith Barney deemed appropriate in
arriving at its opinion.  Smith Barney noted that its opinion was necessarily
based upon information available, and financial, stock market and other
conditions and circumstances existing and disclosed, to Smith Barney as of the
date of its opinion.

          In rendering its opinion, Smith Barney assumed and relied, without
independent verification, upon the accuracy and completeness of all financial
and other information publicly available or furnished to or otherwise reviewed
by or discussed with Smith Barney.  With respect to financial forecasts and
other information and data furnished to or otherwise reviewed by or discussed
with Smith Barney, the respective managements of Pet Practice and VCA advised
Smith Barney that such forecasts and other information and data were reasonably
prepared on bases reflecting the best currently available estimates and
judgments of the respective managements of Pet Practice and VCA as to the future
financial performance of Pet Practice and VCA and the strategic implications and
operational benefits anticipated to result from the Merger.  Smith Barney
assumed, with the consent of the Pet Practice Board, that the Merger will be
treated as a tax-free reorganization for federal income tax purposes.  Smith
Barney's opinion, as set forth therein, relates to the relative values of Pet
Practice and VCA.  Smith Barney did not express any opinion as to what the value
of the VCA Common Stock actually will be when issued to Pet Practice
stockholders pursuant to the Merger or the price at which the VCA Common Stock
will trade subsequent to the Merger.  Smith Barney did not make and was not
provided with an independent evaluation or appraisal of the assets or
liabilities (contingent or otherwise) of Pet Practice or VCA nor did Smith
Barney make any physical inspection of the properties or assets of Pet Practice
or VCA.  Smith Barney was not asked to consider, and its opinion does not
address, the relative merits of the Merger as compared to any alternative
business strategies that might exist for Pet Practice or the effect of any other
transaction in which Pet Practice might engage.  Although Smith Barney evaluated
the Exchange Ratio from a financial point of view, Smith Barney was not asked to
and did not recommend the specific consideration payable in the Merger, which
consideration was determined by Pet Practice and VCA through negotiation.  No
other limitations were imposed by Pet Practice on Smith Barney with respect to
the investigations made or procedures followed by Smith Barney in rendering its
opinion.  It is not currently contemplated that such opinion will be updated.

          THE FULL TEXT OF THE WRITTEN OPINION OF SMITH BARNEY DATED MARCH 21,
1996, WHICH SETS FORTH THE ASSUMPTIONS MADE, MATTERS CONSIDERED AND LIMITATIONS
ON THE REVIEW UNDERTAKEN, IS ATTACHED HERETO AS APPENDIX C AND IS INCORPORATED
                                                -------- -                    
HEREIN BY REFERENCE.  HOLDERS OF PET PRACTICE COMMON STOCK ARE URGED TO READ
THIS OPINION CAREFULLY IN ITS ENTIRETY.  SMITH BARNEY'S OPINION IS DIRECTED ONLY
TO THE FAIRNESS OF THE EXCHANGE RATIO FROM A FINANCIAL POINT OF VIEW, DOES NOT
ADDRESS ANY OTHER ASPECT OF THE MERGER OR RELATED TRANSACTIONS AND DOES NOT
CONSTITUTE A RECOMMENDATION TO ANY STOCKHOLDER AS TO HOW SUCH STOCKHOLDER SHOULD
VOTE AT THE PET PRACTICE SPECIAL MEETING.

          In preparing its opinion, Smith Barney performed a variety of
financial and comparative analyses, including those described below.  The
summary of such analyses does not purport to be a complete description of the
analyses underlying Smith Barney's opinion.  The preparation of a fairness
opinion is a complex analytic process involving various determinations as to the
most appropriate and relevant methods of financial analyses and the application
of those methods to the particular circumstances and, therefore, such an opinion
is not readily susceptible to summary description.  Accordingly, Smith Barney
believes that its analyses must be considered as a whole and that selecting
portions of its analyses and factors, without considering all analyses and
factors, could create a misleading or incomplete view of the processes
underlying such analyses and its opinion.  In its analyses, Smith Barney made
numerous assumptions with respect to Pet Practice, VCA, industry performance,
general business, economic, market and financial conditions and other matters,
many of which are beyond the control of Pet Practice and VCA.  The estimates
contained in such analyses and the valuation ranges resulting from any
particular analysis are not necessarily indicative of actual values or
predictive of future results or values, which may be

                                       41
<PAGE>
 
significantly more or less favorable than those suggested by such analyses.  In
addition, analyses relating to the value of businesses or securities do not
purport to be appraisals or to reflect the prices at which businesses or
securities actually may be sold.  Accordingly, such analyses and estimates are
inherently subject to substantial uncertainty.   Smith Barney's opinion and
financial analyses were only one of many factors considered by the Pet Practice
Board in its evaluation of the Merger and should not be viewed as determinative
of the views of the Pet Practice Board or management with respect to the
Exchange Ratio or the proposed Merger.

          Selected Company Analysis.  Using publicly available information,
Smith Barney analyzed, among other things, the market values and trading
multiples of Pet Practice and the following selected companies in the pet care
industry: VCA, PETsMART, Inc. and Petco Animal Supplies, Inc. (the "Selected
Companies"), and compared these multiples with the multiples implied for Pet
Practice by the Exchange Ratio. Smith Barney compared market values as multiples
of, among other things, estimated calendar 1996 and 1997 net income, and
adjusted market values (market value, plus total debt, less cash) as multiples
of, among other things, latest 12 months net revenue. Net income projections for
the Selected Companies were based on estimates of selected investment banking
firms and net income projections for Pet Practice and VCA were based on
estimates of selected investment banking firms and internal estimates of the
managements of Pet Practice and VCA. All multiples were based on closing stock
prices as of March 20, 1996 (the last trading day prior to the execution of the
Merger Agreement). Applying representative multiples for the Selected Companies
of estimated calendar 1996 and 1997 net income of 39.4x to 48.3x and 31.0x to
34.3x, respectively, and latest 12 months revenue of 1.6x to 3.1x, this analysis
resulted in an equity reference range for Pet Practice of approximately $8.00 to
$11.50 per share, as compared to the per share value implied by the Exchange
Ratio of approximately $10.00 based on a closing stock price of VCA Common Stock
on March 20, 1996.

          Selected Merger and Acquisition Transactions Analysis.  Using publicly
available information, Smith Barney analyzed, among other things, the implied
transaction value multiples paid or proposed to be paid in the following
selected merger and acquisition transactions (acquiror/target): PETsMART,
Inc./Petstuff Inc.; and VCA/Pets' Rx, Inc. (the "Selected Transactions"), and
compared these multiples with the multiples implied for Pet Practice by the
Exchange Ratio. Smith Barney compared transaction values as a multiple of, among
other things, latest 12 months revenue. All multiples were based on information
available at the time of announcement of the transaction. Applying
representative multiples for the Selected Transactions of latest 12 months
revenue of 0.8x to 1.6x, this analysis resulted in an equity reference range for
Pet Practice of approximately $2.68 to $6.45 per share, as compared to the per
share value implied by the Exchange Ratio of approximately $10.00 based on a
closing stock price of VCA Common Stock on March 20, 1996.

          No company, transaction or business used in the "Selected Company
Analysis" or "Selected Merger and Acquisition Transactions Analysis" as a
comparison is identical to Pet Practice, VCA or the Merger.  Accordingly, an
analysis of the results of the foregoing is not entirely mathematical; rather,
it involves complex considerations and judgments concerning differences in
financial and operating characteristics and other factors that could affect the
acquisition, public trading or other values of the Selected Companies, Selected
Transactions or the business segment, company or transaction to which they are
being compared.

          Discounted Cash Flow Analysis.  Smith Barney performed a discounted
cash flow analysis of the projected free cash flow of Pet Practice for the
fiscal years ending December 31, 1996 through 2000, assuming, among other
things, discount rates of 20.0%, 22.5% and 25.0% and terminal multiples of
unlevered net income of 14.0x to 20.0x. This analysis resulted in an equity
reference range for Pet Practice of approximately $5.52 to $9.96 per share.

          Contribution Analysis.  Smith Barney analyzed, among other things, the
respective contributions of Pet Practice and VCA to the estimated revenue,
EBITDA, EBIT and net income of the combined company for fiscal years 1995
through 1997. This analysis indicated that in fiscal years 1995 through 1997,
Pet Practice would contribute approximately 30.6%, 34.4% and 38.3%,
respectively, of revenue, 9.2%, 26.2% and 34.6%, respectively, of EBITDA,
(6.9%), 20.3% and 31.5%, respectively, of EBIT and (334.2%), 18.7% and 27.7%,
respectively, of net income, and VCA would contribute approximately 69.4%, 65.6%
and 61.7%, respectively, of revenue, 90.8%, 73.8% and 65.4%, respectively, of
EBITDA, 106.9%, 79.7% and 68.5%, respectively, of EBIT and 434.2%, 81.3% and
72.3%, respectively, of net income, of the combined company. Immediately
following consummation of the Merger, stockholders of Pet Practice and VCA would
own approximately 19.9% and 80.1%, respectively, of the combined company.

          Pro Forma Merger Analysis.  Smith Barney analyzed certain pro forma
effects resulting from the Merger, including, among other things, the impact of
the Merger on the projected EPS of VCA for fiscal years 1996 and 1997 based on
internal

                                       42
<PAGE>
 
estimates of the managements of VCA and Pet Practice.  The results of the pro
forma merger analysis suggested that the Merger could be accretive to VCA's EPS
in each of the fiscal years analyzed.  The actual results achieved by the
combined company may vary from projected results and the variations may be
material.

          Other Factors and Comparative Analyses.  In rendering its opinion,
Smith Barney considered certain other factors and conducted certain other
comparative analyses, including, among other things: (i) a review of historical
and projected financial results of Pet Practice and VCA; (ii) the history of
trading prices and volume for Pet Practice Common Stock and VCA Common Stock and
the relationship between movements of such Common Stock and movements in the S&P
500 index; (iii) selected analysts' reports on VCA, including analysts'
estimates as to the earnings growth potential of VCA; (iv) the premiums paid in
selected stock-for-stock transactions having transaction values of $75 million
to $150 million; and (v) the pro forma ownership of the combined company.

          Pursuant to the terms of Smith Barney's engagement, Pet Practice has
agreed to pay Smith Barney for its services in connection with the Merger an
aggregate financial advisory fee equal to 1.5% of the total consideration
payable in connection with the Merger.  Pet Practice has also agreed to
reimburse Smith Barney for reasonable travel and other out-of-pocket expenses
incurred by Smith Barney in performing its services, including reasonable legal
fees and expenses, and to indemnify Smith Barney and related persons against
certain liabilities, including liabilities under the federal securities laws,
arising out of Smith Barney's engagement.

          Smith Barney has advised Pet Practice that, in the ordinary course of
business, Smith Barney and its affiliates may actively trade or hold the
securities of Pet Practice and VCA for their own account or for the account of
customers and, accordingly, may at any time hold a long or short position in
such securities.  Smith Barney has in the past provided certain investment
banking services to Pet Practice unrelated to the proposed Merger, for which
services Smith Barney has received compensation.  In addition, Smith Barney and
its affiliates (including Travelers Group Inc. and its affiliates) may maintain
relationships with Pet Practice, VCA and their respective affiliates.

          Smith Barney is a nationally recognized investment banking firm and
was selected by Pet Practice based on Smith Barney's experience, expertise and
familiarity with Pet Practice and its business.  Smith Barney regularly engages
in the valuation of businesses and their securities in connection with mergers
and acquisitions, negotiated underwritings, competitive bids, secondary
distributions of listed and unlisted securities, private placements and
valuations for estate, corporate and other purposes.

INTERESTS OF CERTAIN PERSONS IN THE MERGER

          As of the VCA Record Date directors and executive officers of VCA and
their affiliates may be deemed to be beneficial owners of approximately 6.1% of
the outstanding shares of VCA Common Stock (excluding shares subject to
exercisable options).  Each of the directors and executive officers of VCA has
advised VCA that he or she intends to vote or direct the vote of all of the
outstanding shares of VCA Common Stock over which he or she has voting control
in favor of approval of the Merger Proposal, the Certificate Proposal, the
Director Proposal and the Plan Proposals.

          As of the Pet Practice Record Date, directors and executive officers
of Pet Practice and their affiliates may be deemed to be beneficial owners of
approximately 45.2% of the outstanding shares of Pet Practice Common Stock
(excluding shares subject to exercisable options).  Each of the directors and
executive officers of Pet Practice has advised Pet Practice that he or she
intends to vote or direct the vote of all of the outstanding shares of Pet
Practice Common Stock over which he or she has voting control in favor of
approval and adoption of the Merger Agreement.

          The executive officers of Pet Practice who will continue as officers
and employees of VCA will participate in the VCA 1996 Stock Incentive Plan.  See
"PROPOSAL TO APPROVE THE ADOPTION OF THE VCA 1996 STOCK INCENTIVE PLAN."

          As provided in the Merger Agreement, by virtue of the Merger, all
options (the "Pet Practice Options") outstanding at the Effective Time under the
Pet Practice 1994 Stock Option Plan, whether or not then exercisable, will be
assumed by VCA and converted into and become a right with respect to VCA Common
Stock.  Each Pet Practice Option assumed by VCA will be exercisable upon the
same terms and conditions as under the Pet Practice 1994 Stock Option Plan and
the option agreement

                                       43
<PAGE>
 
issued thereunder, and VCA will assume the Pet Practice 1994 Stock Option Plan
for such purposes.  Pursuant to the Merger Agreement, at and after the Effective
Time, (i) each Pet Practice Option assumed by VCA may be exercised solely for
VCA Common Stock, (ii) the number of shares of VCA Common Stock subject to each
Pet Practice Option will be equal to the number of shares of VCA Common Stock
(rounded to the nearest whole share) into which the number of shares of Pet
Practice Common Stock subject to the Pet Practice Option immediately prior to
the Effective Time, would be converted under the Merger Agreement, (iii) the per
share exercise price for each Pet Practice Option will be equal to (a) the per
share exercise price of the Pet Practice Option in effect immediately prior to
the Effective Time multiplied by the number of shares of Pet Practice Common
Stock subject to such Pet Practice Option immediately prior to the Effective
Time, divided by (b) the number of shares of VCA Common Stock subject to such
Pet Practice Option immediately after the Effective Time.  Approval of the
Merger Proposal by the stockholders of VCA will constitute stockholder approval
of the assumption by VCA of the rights and obligations of Pet Practice under the
Pet Practice 1994 Stock Option Plan and of the amendment of such plan to provide
for, among other things, the conversion at the Effective Time of each
outstanding stock option into an option to purchase shares of VCA Common Stock
at the exercise price set forth above.

          Pet Practice has agreed, upon the consummation of the Merger at the
Effective Time, to award a bonus (the "Merger Bonuses") to each of the President
and the Chief Financial Officer of Pet Practice in the amounts of $100,000 and
$25,000, respectively, each in recognition of their efforts in effectuating the
Merger.  In addition, in connection with the Merger, the vesting provisions with
respect to 5,000 shares of Pet Practice Common Stock held by each of the members
of the Pet Practice Board (other than Messrs. Foster and Nagy) have been waived,
subject to consummation of the Merger.

          The Merger Agreement provides that, from and after the Effective Time,
VCA shall cause Merger Corp. to include as part of its Certificate of
Incorporation and bylaws provisions relating to the indemnification of all
current and former directors, officers, employees and agents of Pet Practice
which are substantially similar to the provisions contained in Pet Practice's
Certificate of Incorporation and bylaws.  Such provisions shall not be amended,
repealed or otherwise modified after the Effective Time in any manner that would
adversely affect the rights thereunder of individuals who at any time prior to
the Effective Time were directors, officers, employees or agents of Pet Practice
in respect to actions or omissions occurring at or prior to the Effective Time
(including, without limitation, actions or omissions which occur in connection
with the transactions contemplated by the Merger Agreement), unless such
modification is required by law.

ACCOUNTING TREATMENT

          The Merger will be accounted for as a "purchase" under generally
accepted accounting principles.  Under the purchase method of accounting, the
purchase price of Pet Practice, including direct costs of the Merger, will be
allocated to the assets acquired and liabilities assumed based upon their
estimated relative fair values, with the excess purchase consideration allocated
to goodwill.

          The merger between VCA and Pets' Rx is expected to be treated as a
"pooling of interests" for accounting purposes.  This accounting method permits
the recorded assets and liabilities of both VCA and Pets' Rx to be carried
forward to the surviving corporation at the recorded historical amounts and no
recognition of goodwill in the combination is required of either company in the
merger.

          The Unaudited Pro Forma Condensed Combined Financial Statements
appearing elsewhere in this Joint Proxy Statement/Prospectus are based upon
certain assumptions and allocate the purchase price in the Merger to assets and
liabilities based upon preliminary estimates of their respective fair values.
The unaudited pro forma adjustments and combined amounts are included for
informational purposes only.  If the Merger is consummated, VCA's financial
statements will reflect effects of acquisition adjustments only from the
Effective Time.  The actual allocation of the purchase price may differ
significantly from the allocation reflected in the Unaudited Pro Forma Condensed
Combined Financial Statements.  See "UNAUDITED PRO FORMA FINANCIAL DATA."

CERTAIN FEDERAL INCOME TAX CONSEQUENCES

          The following is a summary of the material federal income tax
consequences of the Merger to Pet Practice and the stockholders of Pet Practice
and reflects the opinions of tax counsel attached as Exhibits 8.1 and 8.2 to the
Registration Statement of which this Joint Proxy Statement/Prospectus is a part.
Such opinions are based upon certain assumptions noted

                                       44
<PAGE>
 
in such opinions.  The discussion below is based on current law.  This summary
is provided for information purposes only and relates only to Pet Practice
Common Stock held as a capital asset within the meaning of Section 1221 of the
Code by persons who are citizens or residents of the United States.  This
discussion does not address aspects of federal taxation other than income
taxation, nor does it address all aspects of federal income taxation, including,
without limitation, aspects of income taxation that may be applicable to
particular stockholders, such as stockholders who are foreign persons, tax-
exempt organizations, insurance companies, financial institutions and dealers in
stocks and securities or persons who acquired all their Pet Practice Common
Stock in a compensation transaction, such as an exercise of an employee option.
No rulings will be sought from the Internal Revenue Service with respect to the
federal income tax consequences of the Merger.

          PET PRACTICE STOCKHOLDERS ARE URGED TO CONSULT THEIR OWN TAX ADVISORS
AS TO SPECIFIC TAX CONSEQUENCES TO THEM OF THE MERGER.

          Based upon the advice of its legal counsel, VCA and Pet Practice
believe that the Merger will be treated as a reorganization within the meaning
of Section 368 of the Code, and accordingly (i) no gain or loss will be
recognized by Pet Practice as a result of the Merger; (ii) no gain or loss will
be recognized by the Pet Practice stockholders upon the receipt of VCA Common
Stock in exchange for Pet Practice Common Stock in connection with the Merger
(except as discussed below with respect to cash received in lieu of a fractional
interest in VCA Common Stock); (iii) the tax basis of the VCA Common Stock to be
received by the Pet Practice stockholders in connection with the Merger will be
the same as the basis in the Pet Practice Common Stock surrendered in exchange
therefor (reduced by any amount allocable to a fractional share interest for
which cash is received); and (iv) the holding period of the VCA Common Stock to
be received by the Pet Practice stockholders in connection with the Merger will
include the holding period of the Pet Practice Common Stock surrendered in
exchange therefor, provided that the Pet Practice Common Stock is held as a
capital asset at the Effective Time.  Pet Practice's obligation to consummate
the Merger is conditioned upon the receipt of a written opinion from its legal
counsel to this effect.  Based upon the advice of its legal counsel, VCA
believes that the Merger will result in no gain or loss to VCA on the exchange
of shares of Pet Practice Common Stock.  VCA's obligation to consummate the
Merger is conditioned upon the receipt of a written opinion from its legal
counsel to this effect.  See "THE MERGER AGREEMENT --- Conditions to the
Merger."

          A Pet Practice stockholder who is entitled to receive cash in lieu of
a fractional share interest of VCA Common Stock in connection with the Merger
will recognize gain (or loss) equal to the difference between such cash amount
and the stockholder's basis in the fractional share interest as long as the cash
payment is not essentially equivalent to a dividend.  In such event, any gain or
loss recognized will be capital gain (or loss) if the Pet Practice Common Stock
is held by such stockholder as a capital asset at the Effective Time.

          THE DISCUSSION SET FORTH ABOVE DOES NOT ADDRESS THE STATE, LOCAL OR
FOREIGN TAX ASPECTS OF THE MERGER.  THE DISCUSSION IS BASED ON CURRENTLY
EXISTING PROVISIONS OF THE CODE, EXISTING AND PROPOSED TREASURY REGULATIONS
THEREUNDER AND CURRENT ADMINISTRATIVE RULINGS AND COURT DECISIONS.  ALL OF THE
FOREGOING ARE SUBJECT TO CHANGE AND ANY SUCH CHANGES COULD AFFECT THE CONTINUING
VALIDITY OF THIS DISCUSSION.  EACH VCA AND PET PRACTICE STOCKHOLDER SHOULD
CONSULT SUCH STOCKHOLDER'S OWN TAX ADVISOR WITH RESPECT TO THE SPECIFIC TAX
CONSEQUENCES OF THE MERGER TO SUCH STOCKHOLDER, INCLUDING THE APPLICATION AND
EFFECT OF STATE, LOCAL AND FOREIGN TAX LAWS AND THE POSSIBLE EFFECTS OF CHANGES
IN FEDERAL LAWS OR OTHER TAX LAWS.


RESALE RESTRICTIONS

          All shares of VCA Common Stock received by Pet Practice stockholders
in the Merger will be freely transferable, except that shares of VCA Common
Stock received by persons who are deemed to be "affiliates" (as such term is
defined under the Act) of Pet Practice prior to the Merger may be resold by them
only in transactions permitted by the resale provisions of Rule 145 promulgated
under the Act (or Rule 144 in the case of such persons who become affiliates of
VCA) or as otherwise permitted under the Act.  Persons who may be deemed to be
affiliates of Pet Practice or VCA generally include individuals or entities that
control, are controlled by, or are under common control with, such party and may
include certain officers and directors of such party as well as principal
stockholders of such party.  The Merger Agreement requires Pet Practice to
exercise its reasonable efforts to cause each of its affiliates to execute a
written agreement to the effect that such person will not offer

                                       45
<PAGE>
 
to sell, transfer or otherwise dispose of any of the shares of VCA Common Stock
issued to such person in or pursuant to the Merger unless (a) such sale,
transfer or other disposition has been registered under the Act, (b) such sale,
transfer or other disposition is made in conformity with Rule 145 under the Act
or (c) in the opinion of counsel, such sale, transfer or other disposition is
exempt from registration under the Act.

          In addition, the Principal Stockholder has agreed not to transfer or
otherwise dispose of the Pet Practice Common Stock owned by it except to its
partners who agree not to transfer or otherwise dispose of the VCA Common Stock
received in the Merger with respect to such Pet Practice Common Stock for a
period ending on April 30, 1997; provided, that, 33% of such shares of VCA
Common Stock shall no longer be subject to such restriction on November 1, 1996
and the remaining shares shall no longer be subject to such restriction on May
1, 1997.

REGULATORY MATTERS

          Under the HSR Act and the rules promulgated thereunder by the FTC, the
Merger may not be consummated until notifications have been given and certain
information has been furnished to the Antitrust Division and the FTC and
specified waiting period requirements have been satisfied.  VCA and Pet Practice
each filed with the Antitrust Division and the FTC a Notification and Report
Form (the "Notification and Report Form") with respect to the Merger on April
26, 1996.  The initial waiting period for each of these filings expired on May
26, 1996.

          The Antitrust Division and the FTC frequently scrutinize the legality
under the antitrust laws of transactions such as the Merger.  At any time before
or after the Stockholder Meetings, the Antitrust Division or the FTC could take
such action under the antitrust laws as it deems necessary or desirable in the
public interest, including seeking to enjoin the Merger or seeking the
divestiture of substantial assets of Pet Practice or its subsidiaries or VCA or
its subsidiaries.

          In addition, state antitrust authorities may also bring legal action
under the antitrust laws.  Such action could include seeking to enjoin the
consummation of the Merger or seeking divestiture of certain assets of VCA or
Pet Practice.  Private parties may also seek to take legal action under the
antitrust laws under certain circumstances.  There can be no assurance that a
challenge to the Merger on antitrust grounds will not be made or, if such a
challenge is made, of the results thereof.

NASDAQ NATIONAL MARKET

          VCA expects to apply for the listing of the additional shares of VCA
Common Stock to be issued to the Pet Practice stockholders in connection with
the Merger on the Nasdaq National Market.  It is a condition to the Merger that
these shares shall have been approved for listing on the Nasdaq National Market,
subject only to official notice of issuance.

                                       46
<PAGE>
 
                             THE MERGER AGREEMENT

          The following is a summary of the material provisions of the Merger
Agreement, a copy of which is attached as Appendix A to this Joint Proxy
                                          -------- -                    
Statement/Prospectus and is incorporated herein by reference.  Stockholders of
VCA and Pet Practice are urged to read the Merger Agreement in its entirety for
a more complete description of the Merger.

GENERAL

          Pursuant to the Merger Agreement, subject to the terms and conditions
thereof, at the Effective Time, Pet Practice will be merged with and into Merger
Corp.  As a result of the Merger, Pet Practice will become a wholly owned
subsidiary of VCA.  As part of the Merger, stockholders of Pet Practice will
receive the consideration described below.

          Upon the satisfaction or waiver of all conditions to the Merger, and
provided that the Merger Agreement has not been terminated or abandoned, VCA and
Pet Practice will cause the Certificate of Merger to be executed, acknowledged
and filed with the Secretary of State of the State of Delaware as provided in
Section 251 of the DGCL.  Such filing is anticipated to take place as soon as
practicable after the last of the conditions precedent to the Merger set forth
in the Merger Agreement have been satisfied or, where permissible, waived, which
is expected to occur shortly after the Stockholder Meetings.

CONSIDERATION TO BE RECEIVED IN THE MERGER

          Upon consummation of the Merger, pursuant to the Merger Agreement, (i)
each share of Pet Practice Common Stock issued and outstanding at the Effective
Time, will be converted into a fraction of a share of VCA Common Stock
determined by reference to the Exchange Ratio (defined below), (ii) all shares
of Pet Practice Common Stock will be canceled and cease to exist, and (iii) all
Pet Practice treasury stock, if any, will be canceled and retired without
payment of any consideration therefor.  The Exchange Ratio is determined by
reference to the following formula:  (a) if the Average Price (defined below) is
between $25.00 and $30.00 (inclusive), the Exchange Ratio shall be determined by
dividing $10.00 by the Average Price, (b) if the Average Price is between $24.00
and $19.00 (inclusive), the Exchange Ratio shall be 0.3950 at $24.00 and
increased 0.005 for each whole dollar by which the Average Price is less than
$24.00, (c) if the Average Price is $18.50 or less, the Exchange Ratio shall be
0.4225, (d) if the Average Price is equal to or greater than $31.00 and less
than $49.00, the Exchange Ratio shall be 0.3350 at $31.00 and reduced 0.005 for
each whole dollar by which the Average Price is greater than $31.00, (e) if the
Average Price is within the ranges described in clause (b) and (d) above, but
the Average Price is not a whole dollar, then the Exchange Ratio shall be
determined as that which would have been computed at the nearest whole dollar
increased or decreased (as applicable) by an amount equal to 0.005 multiplied by
a fraction, the numerator of which shall be the difference between the Average
Price and such nearest whole dollar, and the denominator of which shall be
$1.00, (f) if the Average Price is between $19.00 and $18.50 (exclusive), the
Exchange Ratio shall be 0.4200 increased by an amount equal to 0.0025 multiplied
by a fraction, the numerator of which is the difference between $19.00 and the
Average Price and the denominator of which is $.50, (g) if the Average Price is
between $24.00 and $25.00 (exclusive), the Exchange Ratio shall be 0.3950
increased by an amount equal to 0.005 multiplied by a fraction, the numerator of
which is the difference between the Average Price and $24.00 and the denominator
of which is $1.00, (h) if the Average Price is between $30.00 and $31.00
(exclusive), the Exchange Ratio shall be 0.3333 increased by  an amount equal to
0.0017 multiplied by a fraction, the numerator of which is the difference
between the Average Price and $30.00 and the denominator of which is $1.00, and
(i) if the Average Price is equal to or greater than $49.00, the Exchange Ratio
shall be determined by dividing $12.005 by the Average Price.  The Average Price
means the average of the closing prices of the VCA Common Stock on the Nasdaq
National Market over the 20 trading day period ending on (and including) the
third trading day immediately preceding the date of the Pet Practice Special
Meeting.

          Based on the foregoing, the resulting valuation of the merger
consideration per share of Pet Practice Common Stock will range from $7.82 per
share (if the Average Price is $18.50 per share) to $12.005 per share (if the
Average Price is $49.00 per share).

          The following table presents the Exchange Ratios and resulting
valuation of the merger consideration to be received in the Merger for each
share of Pet Practice Common Stock at the Average Prices indicated.

                                       47
<PAGE>
 
<TABLE>
<CAPTION>
 
<S>               <C>      <C>       <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>         <C>
Average Price     $ 18.50  $ 19.00   $ 20.00   $ 21.00    $ 22.00    $ 23.00    $ 24.00    $ 25.00    $ 26.00     $ 27.00    $ 28.00

Exchange Ratio     0.4225   0.4200    0.4150    0.4100     0.4050     0.4000     0.3950     0.4000     0.3846      0.3704     0.3571

Market Value of   $  7.82  $  7.98   $  8.30   $  8.61    $  8.91    $  9.20    $  9.48    $ 10.00    $ 10.00     $ 10.00    $ 10.00
 Merger
 Consideration
 
Average Price     $ 29.00   $ 30.00   $ 31.00   $32.00    $ 33.00    $ 34.00    $ 35.00    $ 36.00    $ 37.00     $ 38.00    $ 39.00

Exchange Ratio     0.3448    0.3333    0.3350    0.3300    0.3250     0.3200     0.3150     0.3100     0.3050      0.3000     0.2950

Market Value of   $ 10.00   $ 10.00   $ 10.39   $ 10.56   $ 10.73    $ 10.88    $ 11.03    $ 11.16    $ 11.29     $ 11.40    $ 11.51
 Merger
 Consideration
 
Average Price     $ 40.00   $ 41.00   $ 42.00   $ 43.00   $ 44.00    $ 45.00    $ 46.00    $ 47.00    $ 48.00     $ 49.00
Exchange Ratio     0.2900     0.285    0.2800    0.2750    0.2700     0.2650     0.2600     0.2550     0.2500      0.2450
Market Value of   $ 11.60   $ 11.69   $ 11.76   $ 11.83   $ 11.88    $ 11.93    $ 11.96    $ 11.99    $ 12.00     $12.005
 Merger
 Consideration
 
</TABLE>

          For a more complete listing of the Exchange Ratios applicable at
various Average Prices, see Appendix F to this Proxy Statement.

          Pet Practice and VCA have established a toll-free phone number which
may be called by VCA stockholders and Pet Practice stockholders to obtain more
current estimates of the Exchange Ratio based upon the foregoing.  Please call
(800) 223-2064 for a current estimate of the Exchange Ratio based upon more
recent market closing prices of the VCA Common Stock.

          Each outstanding Pet Practice Option will be assumed by VCA in
accordance with the Merger Agreement and will be exercisable upon the same terms
and conditions as under the applicable agreement or plan representing such
option, except that (i) each option shall be exercisable for that number of
shares of VCA Common Stock (to the nearest whole share) into which the number of
shares of Pet Practice Common Stock subject to such option immediately prior to
the Effective Time would be converted under the Merger Agreement and (ii) the
exercise price per share of each such option shall be equal to (x) the per share
exercise price of such option in effect immediately prior to the Effective Time
multiplied by the number of shares of Pet Practice Common Stock subject to such
option immediately prior to the Effective Time, divided by (y) the number of
shares of VCA Common Stock subject to such option immediately after the
Effective Time.  Approval of the Merger Agreement by the stockholders of VCA
will constitute stockholder approval of the assumption by VCA of the rights and
obligations of Pet Practice under the Pet Practice 1994 Stock Option Plan and of
the amendment of such plan to provide for, among other things, the conversion at
the Effective Time of each outstanding stock option into an option to purchase
shares of VCA Common Stock.

EXCHANGE OF SHARES

          Promptly after the Effective Time, transmittal forms will be mailed to
each holder of record of shares of Pet Practice Common Stock to be used in
forwarding Certificates evidencing such shares for surrender and exchange for
certificates evidencing the shares of VCA Common Stock to which such holder has
become entitled and, if applicable, cash in lieu of a fractional share of VCA
Common Stock.  After receipt of such transmittal form, each holder of
Certificates formerly representing Pet Practice Common Stock should surrender
such Certificates, together with a duly completed transmittal form, to the
Exchange Agent, and each such holder will receive in exchange therefor
certificates evidencing the whole number of shares of VCA Common Stock to which
he or she is entitled and any cash which may be payable in lieu of a fractional
share.  Such transmittal forms will be accompanied by instructions specifying
other details of the exchange.

                                       48
<PAGE>
 
          PET PRACTICE STOCKHOLDERS SHOULD NOT SEND IN THEIR CERTIFICATES UNTIL
THEY RECEIVE A LETTER OF TRANSMITTAL.

          No fractional shares of VCA Common Stock will be issued and any holder
of shares of Pet Practice Common Stock entitled under the Merger Agreement to
receive a fractional share will be entitled to receive only a cash payment in
lieu thereof, which payment will be in an amount equal to the product of the
Average Price (defined above) of a share of VCA Common Stock multiplied by the
fractional percentage of a share of VCA Common Stock to which such holder would
otherwise be entitled.

          No dividends or other distributions on shares of VCA Common Stock will
be paid with respect to any shares of Pet Practice Common Stock until the
Certificate representing such shares is surrendered for exchange as provided in
the Merger Agreement.  Subject to applicable laws, such dividends and
distributions, if any, will be accumulated and, at the time of such surrender,
all such unpaid dividends and distributions, together with any cash payment in
lieu of a fractional share, will be paid, without interest.

          At or after the Effective Time, there will be no transfers on the
transfer books of Pet Practice of shares of Pet Practice Common Stock which were
outstanding immediately prior to the Effective Time.

          Any portion of the monies from which cash payments in lieu of
fractional interests in shares of VCA Common Stock will be made (including the
proceeds of any investments thereof) and any shares of VCA Common Stock that are
unclaimed by the former stockholders of Pet Practice one year after the
Effective Time will be delivered to VCA.  Any former stockholders of Pet
Practice who have not theretofore complied with the exchange procedures in the
Merger Agreement may thereafter look to VCA only as a general creditor for
payment of their shares of VCA Common Stock, cash in lieu of fractional shares,
and any unpaid dividends and distributions on shares of VCA Common Stock,
deliverable in respect of each share of Pet Practice Common Stock such
stockholder holds.  Notwithstanding the foregoing, none of Pet Practice, VCA,
the Exchange Agent or any other person will be liable to any former holder of
shares of Pet Practice Common Stock for any amount properly delivered to a
public official pursuant to applicable abandoned property, escheat or similar
laws.

          In the event that any Certificate has been lost, stolen or destroyed,
upon the making of an affidavit of that fact by the person claiming such
Certificate to be lost, stolen or destroyed and, if required by VCA, the posting
by such person of a bond in such reasonable amount as VCA may direct as
indemnity against any claim that may be made against it with respect to such
Certificate, the Exchange Agent will issue in exchange for such lost, stolen or
destroyed Certificate the shares of VCA Common Stock, cash in lieu of fractional
shares, and any unpaid dividends and distributions on shares of VCA Common
Stock, as described above.

REPRESENTATIONS AND WARRANTIES

          The Merger Agreement contains various customary representations and
warranties relating to, among other things, (i) due organization, valid
existence and good standing of each of VCA and Pet Practice and each of their
respective subsidiaries and certain corporate matters; (ii) the capital
structure of each of VCA and Pet Practice; (iii) the authorization, execution,
delivery and enforceability of the Merger Agreement, the consummation of the
transactions contemplated by the Merger Agreement and related matters; (iv)
conflicts under charters or bylaws, required consents or approvals and
violations of any instruments or laws; (v) documents and financial statements
filed by each of VCA and Pet Practice with the Commission and the accuracy of
information contained therein; (vi) undisclosed liabilities; (vii) the absence
of certain material adverse events or changes; (viii) taxes, tax returns and
audits; (ix) properties; (x) intellectual properties; (xi) agreements, contracts
and commitments; (xii) litigation; (xiii) environmental matters, hazardous
materials and hazardous material activities; (xiv) employee benefit plans; (xv)
compliance with laws; (xvi) interested party transactions; (xvii) the accuracy
of information supplied by each of VCA and Pet Practice in connection with the
Registration Statement and this Joint Proxy Statement/Prospectus; (xviii) the
absence of existing discussions with other parties; (xix) opinions of financial
advisors; (xx) inapplicability to the Merger of certain provisions of the DGCL;
and (xxi) the interim operations of Merger Corp.

                                       49
<PAGE>
 
CERTAIN COVENANTS

          Conduct of Business Pending the Merger.  Pursuant to the Merger
Agreement, VCA and Pet Practice have made various customary covenants relating
to the Merger.  Pet Practice has agreed that, prior to the Effective Time, Pet
Practice and its subsidiaries will conduct their operations according to their
usual, regular and ordinary course of business.  Specifically, Pet Practice has
agreed, among other things: (i) to preserve intact its business organization,
relationships and goodwill and to keep available the services of its officers
and employees; (ii) not to amend its certificate of incorporation or bylaws;
(iii) not to grant, confer or award any bonuses (other than the Merger Bonuses)
or other forms of cash incentives to any officer, director or key employee
except consistent with past practice or grant or confer any awards (other than
those granted as of the date of the Merger Agreement) under the Pet Practice
1994 Stock Option Plan, not to increase any compensation under any employment
agreement with any of its present or future officers, directors or employees,
except for normal increases consistent with past practice, grant any severance
or termination pay to, or enter into any employment or severance agreement with
any officer or director or amend any such agreement in any material respect
other than severance arrangements which are consistent with past practice with
respect to employees terminated by Pet Practice, and not to adopt any new
employee benefit plan (including any stock option, stock benefit or stock
purchase plan) or amend any existing employee benefit plan in any material
respect; (iv) not to issue new Pet Practice capital stock (except pursuant to
the exercise of contractual rights existing prior to the execution of the Merger
Agreement to acquire any shares of its capital stock), effect a stock split or
change its current capitalization; (v) not to declare any dividends or make any
distributions with respect to its capital stock or redeem any of its capital
stock or stock of its subsidiaries; (vi) not to acquire any corporation,
partnership or any other business organization or division thereof; (vii) not to
incur any indebtedness for borrowed money; (viii) not to sell, pledge, dispose
of or encumber any of its properties or assets except in the ordinary course of
business consistent with past practices; (ix) not to change its accounting
practices; and (x) not to authorize or make capital expenditures in excess of
$500,000 in the aggregate.

          VCA has agreed that, prior to the Effective Time, it will, among other
things: (i) conduct its operations in the ordinary course of business and in a
manner consistent with past practices, (ii) preserve intact its business
organization, relationships and goodwill and keep available the services of its
officers and employees, and (iii) not amend any of the material terms of its
securities, except such amendments that affect all shares of VCA Common Stock
equally.

          No Solicitation of Transactions.  Pursuant to the Merger Agreement,
Pet Practice has agreed that prior to the Effective Time, neither it nor any of
its subsidiaries will permit its officers, directors, employees, agents and
representatives (including, without limitation, any investment banker, attorney
or accountant retained by it or any of its subsidiaries) to initiate, solicit or
encourage, directly or indirectly, any inquiries or make or implement any
proposal or offer (including, without limitation, any proposal or offer to its
stockholders) with respect to a merger, acquisition, consolidation or similar
transaction involving, or any purchase of all or any significant portion of the
assets or any equity securities of, Pet Practice or any of its subsidiaries (any
such proposal or offer being hereinafter referred to as an "Acquisition
Proposal") or engage in any negotiations concerning, or provide any confidential
information or data to, or have any discussions with, any person relating to an
Acquisition Proposal, or otherwise facilitate any effort or attempt to make or
implement an Acquisition Proposal.  Pet Practice also agreed to cease and cause
to be terminated any existing activities, discussions or negotiations with any
parties with respect to any of the foregoing and to take the necessary steps to
inform the individuals or entities referred to above of Pet Practice's
obligations with respect to an Acquisition Proposal.  Pet Practice has further
agreed that it will notify VCA immediately if any such inquiries or proposals
are received by, any such information is received from, or any such negotiations
or discussions are sought to be initiated or continued with, it.  However, the
Pet Practice Board is not prohibited from (i) furnishing information to, or
entering into discussions or negotiations with, any person or entity that makes
an unsolicited bona fide proposal to acquire Pet Practice pursuant to a merger,
consolidation, share exchange, purchase of a substantial portion of the assets,
business combination or other similar transaction, if, and only to the extent
that (A) the Pet Practice Board determines in good faith that such action is
required for the Pet Practice Board to comply with its fiduciary duties to
stockholders imposed by law, (B) the Pet Practice Board has received a legal
opinion from its legal counsel that such action is required for the Pet Practice
Board to comply with its fiduciary duties to stockholders imposed by law, (C)
prior to furnishing such information to, or entering into discussions or
negotiations with, such person or entity, Pet Practice provides written notice
to VCA to the effect that it is furnishing information to, or entering into
discussions or negotiations with, such person or entity, and (D) subject to any
confidentiality agreement with such person or entity (which such party
determined in good faith was required to be executed in order for the Pet
Practice Board to comply with its fiduciary duties to stockholders imposed by
law), Pet Practice keeps VCA informed of the status (not the terms) of any such
discussions or negotiations; and (ii) to the extent applicable, complying with
Rule 14e-2 promulgated under the Exchange Act with regard to an Acquisition
Proposal.  Pet Practice may not terminate the Merger

                                       50
<PAGE>
 
Agreement (except pursuant to the termination provisions contained in the Merger
Agreement), enter into any agreement with respect to, or in any way facilitate,
an Acquisition Proposal while the Merger Agreement remains in effect, or fail to
comply with any of its obligations under the Merger Agreement.

          Termination Fee.  If, following any Acquisition Proposal, Pet Practice
subsequently effects any merger, acquisition, consolidation or similar
transaction involving, or any purchase of all or any significant portion of the
assets or any equity securities of, Pet Practice or any of its subsidiaries, or
the Merger Agreement is thereafter terminated, Pet Practice shall pay to VCA an
amount equal to $3.5 million.

          Meetings of Stockholders.  Pursuant to the Merger Agreement, each of
VCA and Pet Practice has agreed to take all necessary action, in accordance with
applicable law and its respective Certificate of Incorporation and bylaws, to
convene promptly the Stockholder Meetings.  The VCA Board and the Pet Practice
Board have agreed to recommend such approval and to take all lawful action to
solicit such approvals.  However, either the VCA Board or Pet Practice Board, in
the exercise of its good faith judgment and based on the advice of outside
counsel as to its fiduciary duties to its stockholders imposed by law, may
change its recommendation or withdraw its solicitation.

          Indemnification and Insurance.  The Merger Agreement provides that,
from and after the Effective Time, VCA shall cause Merger Corp. to include as
part of its Certificate of Incorporation and bylaws provisions relating to the
indemnification of all current and former directors, officers, employees and
agents of Pet Practice which are substantially similar to the provisions
contained in Pet Practice's Certificate of Incorporation and bylaws.  Such
provisions shall not be amended, repealed or otherwise modified after the
Effective Time in any manner that would adversely affect the rights thereunder
of individuals who at any time prior to the Effective Time were directors,
officers, employees or agents of Pet Practice in respect to actions or omissions
occurring at or prior to the Effective Time (including, without limitation,
actions or omissions which occur in connection with the transactions
contemplated by the Merger Agreement), unless such modification is required by
law.

          Other Actions.  Pursuant to the Merger Agreement, both VCA and Pet
Practice have agreed to use their best efforts to take, or cause to be taken,
all other action and to do, or cause to be done, all other things necessary,
proper or appropriate to consummate the transactions contemplated by the Merger
Agreement.

          Certain Other Covenants.  Both VCA and Pet Practice have also agreed:
(i) to make promptly their respective filings, and any other submissions, under
the HSR Act and obtain all other consents, approvals or permits from the
necessary federal and state governments and regulatory agencies (including any
national securities exchange) prior to the Effective Time; (ii) to consult with
each other prior to issuing any press release or public statement; (iii) to
allow all designated officers, attorneys, accountants and representatives of the
other reasonable access to offices, records and files (including information
relating to commitments, contracts, titles and financial position) and to
instruct their respective employees, counsel and financial advisors to cooperate
with each other's investigation; (iv) to cooperate in the filing of the
Registration Statement and obtain all necessary state securities laws permits or
approvals; (v) that Pet Practice will use all reasonable efforts to deliver or
cause to be delivered to VCA an affiliate letter, in a form reasonably
acceptable to VCA, from each of the persons deemed to be "affiliates" of Pet
Practice as such term is defined under the Act at least 20 days prior to the
Effective Time; and (vi) that all costs and expenses incurred in connection with
the Merger shall be paid by the party incurring such costs and expenses except
that the filing fees associated with the HSR filing and the Registration
Statement filing as well as the expenses incurred in connection with the
printing and mailing of the Registration Statement and the Joint Proxy
Statement/Prospectus shall be shared equally by VCA and Pet Practice.

CONDITIONS TO THE MERGER

          The obligations of VCA and Pet Practice to consummate the Merger are
conditioned on the fulfillment of the following: (i) the effectiveness of the
Registration Statement and the absence of any stop order suspending the
effectiveness thereof and no proceeding for that purpose having been initiated
by the Commission; (ii) approval, in the manner required by law or the
applicable stock exchange or regulatory body, of the stockholders of VCA and the
stockholders of Pet Practice, of the Merger Agreement and all transactions
contemplated thereby; (iii) expiration or termination of the applicable waiting
period under the HSR Act; (iv) neither VCA nor Pet Practice shall be subject to
any order or injunction of a court of competent jurisdiction which prohibits the
consummation of the transactions contemplated in the Merger Agreement; (v) the
approval for listing of the VCA Common Stock issued to the Pet Practice
stockholders in connection with the Merger on the Nasdaq National Market;

                                       51
<PAGE>
 
(vi) the receipt by VCA and Pet Practice from their respective counsels of an
opinion to the effect that the Merger will be treated for federal income tax
purposes as a reorganization within the meaning of Section 368 of the Code; and
(vii) for a period of 30 days prior to the Effective Date, there will not have
been a suspension in trading on the Nasdaq National Market, the declaration of a
banking moratorium, any suspension of payments in respect of banks, an outbreak
or major escalation of hostilities between the United States and any foreign
power or any limitation by any governmental authority on credit by financial
institutions.

          The obligation of VCA to consummate the Merger is conditioned on the
fulfillment of the following conditions:  (i) the performance by Pet Practice,
in all material respects, of its obligations required to be performed on or
prior to the Effective Time and contained in the Merger Agreement; (ii) the
representations and warranties made by Pet Practice in the Merger Agreement
shall be true in all material respects as of the Effective Time; (iii) the
receipt by VCA of an opinion from counsel for Pet Practice customary in merger
transactions; (iv) no material adverse changes in the business, financial
condition or operations of Pet Practice shall have occurred;  (v) all material
filings, registrations, covenants, permits, authorizations and regulatory
approvals necessary for the consummation of the Merger shall have been obtained
or made; (vi) VCA shall have received a "comfort" letter from Pet Practice's
independent public accountants; (vii) VCA shall have received an "affiliate"
letter from each affiliate of Pet Practice; (viii) VCA shall have received a
letter from the Principal Stockholder of Pet Practice agreeing not to dispose of
the shares of VCA Common Stock received in the Merger for a period ending on
April 30, 1997; provided, that, 33% of such shares of VCA Common Stock shall no
longer be subject to such restriction on November 1, 1996; and (ix) no law or
order has been enacted or entered which would make the Merger illegal or
materially delay the Effective Time, require VCA or Pet Practice to divest
shares of Pet Practice Common Stock or a material portion of the business,
assets or properties of VCA or Pet Practice or impose any material limitation on
the ability of either of them to conduct their respective businesses and own
their respective assets or properties, or impose limitations on the ability of
VCA to control in any material respect the business operations of Pet Practice.

          The obligation of Pet Practice to consummate the Merger is conditioned
on the fulfillment of the following conditions:  (i) the performance by VCA, in
all material respects, of its obligations required to be performed on or prior
to the Effective Time and contained in the Merger Agreement; (ii) the
representations and warranties made by VCA in the Merger Agreement shall be true
in all material respects as of the Effective Time ; (iii) the receipt by Pet
Practice of an opinion from counsel for VCA customary in merger transactions;
and (iv) no law or order has been enacted or entered which would make the Merger
illegal or delay the Effective Time beyond September 1, 1996.

TERMINATION OF THE MERGER AGREEMENT

          The Merger Agreement is subject to termination at the option of either
VCA or Pet Practice if the Merger is not consummated on or before September 1,
1996. In addition, prior to such time, the Merger Agreement is subject to
termination upon: (i) the disapproval of the Merger Proposal by the VCA
stockholders voting thereon or the disapproval of the Merger Agreement by the
Pet Practice stockholders voting thereon; (ii) the issuance by a court or
governmental, regulatory or administrative agency, of an order, decree or ruling
permanently restraining, enjoining or otherwise prohibiting the consummation of
the Merger; (iii) the Average Price being equal to or less than $18.50; or 
(iv) the mutual consent of VCA and Pet Practice.

          The Merger Agreement may be terminated by the Pet Practice Board at
any time prior to the Effective Time if (i) there has been a breach by VCA of
any representation, warranty, covenant or agreement in the Merger Agreement such
that the conditions to the obligations of Pet Practice would not be satisfied
and such breach is not curable, or if curable prior to September 1, 1996, VCA is
not exercising reasonable efforts to cure such breach; or (ii) any material
condition to the obligations of Pet Practice is not substantially satisfied at
the time contemplated thereby and such condition is not waived by Pet Practice.

          The Merger Agreement may be terminated by the VCA Board at any time
prior to the Effective Time if (i) there has been a breach by Pet Practice of
any representation, warranty, covenant or agreement in the Merger Agreement such
that the conditions to the obligations of VCA would not be satisfied and such
breach is not curable, or if curable prior to September 1, 1996, Pet Practice is
not exercising reasonable efforts to cure such breach; or (ii) any material
condition to the obligations of VCA is not substantially satisfied at the time
contemplated thereby and such condition is not waived by VCA.

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AMENDMENT AND WAIVER

          The Merger Agreement may be amended at any time by action taken or
authorized by the respective boards of directors of VCA and Pet Practice, but
after approval by the stockholders of VCA and Pet Practice of the matters
presented in connection with the Merger to them, no amendment shall be made
which by law requires further approval by such stockholders, without such
further approval.  VCA and Pet Practice by action taken or authorized by their
respective boards of directors, may extend the time for performance of the
obligations or other acts of the other parties to the Merger Agreement, may
waive inaccuracies in the representations or warranties contained in the Merger
Agreement, and may waive compliance with any agreements or conditions contained
in the Merger Agreement.


                                BUSINESS OF VCA

GENERAL

          VCA was founded in 1986 and is a leading companion animal health care
company.  VCA has established a premier position in the animal hospital and
veterinary diagnostic laboratory segments and has an emerging presence in the
premium pet food segment.  VCA operates one of the largest networks of free-
standing, full service animal hospitals in the country and one of the largest
networks of veterinary-exclusive laboratories in the nation.  VCA also markets
both a life-stage and a therapeutic line of premium pet foods through Vet's
Choice, a joint venture with Heinz Pet Products, an affiliate of H.J. Heinz
Company.

          Animal hospitals, veterinary diagnostic laboratories and premium pet
foods represented approximately 55%, 40% and 5%, respectively, of VCA's revenues
for the year ended December 31, 1995.  VCA's animal hospitals offer a full range
of general medical and surgical services and also perform specialty surgeries
such as orthopedics for small animals, including dogs, cats, birds and other
household pets.  In addition to treating disease and injury, VCA's animal
hospitals emphasize pet wellness and offer programs to encourage routine
vaccinations, health examinations, spaying and neutering and dental care.  VCA's
veterinary laboratories offer a full range of diagnostic and reference tests.
Laboratory tests are used by veterinarians to diagnose, monitor and treat
diseases through the detection of substances in blood, urine or tissue samples
and other specimens.  VCA does not conduct experiments on animals and is not
engaged in animal research.  Vet's Choice markets a complete line of life-stage
and therapeutic premium pet foods under the brand names Select Balance and
Select Care, respectively.

RECENT DEVELOPMENTS

Recent Acquisitions

          Since January 1, 1996 through June 20, 1996, VCA has acquired (i)
Pets' Rx, Inc., the owner and operator of 16 animal hospitals in California and
Nevada, and (ii) 11 animal hospitals in the states of Maryland, Massachusetts,
Pennsylvania, Florida, Hawaii, Virginia and California.  In addition, VCA has
acquired three veterinary laboratories, one of which was Southwest Veterinary
Diagnostics, Inc. ("Southwest"), a veterinary diagnostic laboratory located in
Phoenix, Arizona.  The acquisition of Southwest, which services more than 1,900
veterinary hospitals in the states of Arizona, California, New Mexico, Texas,
Kansas, Nebraska and Missouri, and other portions of the Midwest, expands the
customer base of VCA's laboratory division, providing VCA with the opportunity
to serve over 8,000 veterinary hospitals daily.  In connection with the
acquisitions which were accounted for as a purchase, VCA paid an aggregate
consideration of $28,718,000 consisting of $13,614,000 in cash, $8,066,000 in
debt, 242,926 shares of VCA Common Stock, with a value of $3,868,000, and the
assumption of liabilities totaling $3,170,000, including acquisition costs.  In
connection with the acquisitions which were treated as a pooling of interests,
VCA issued 952,091 shares of VCA Common Stock.

The Pet Practice, Inc.

          On March 21, 1996, VCA signed the Merger Agreement with Pet Practice,
pursuant to which VCA will acquire all of the outstanding securities of Pet
Practice.  Pet Practice operates 84 veterinary hospitals in 11 states.  For a
description of the Merger with Pet Practice, see "THE MERGER."

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Debt Offering

          On April 17, 1996, VCA issued $84.4 million of 5.25% convertible
subordinated debentures due in 2006.  The debentures, non-callable for three
years, will be convertible into approximately 2.5 million shares of VCA Common
Stock at a price of $34.35 per share.  The proceeds of this offering are
intended to be used to repay acquisition related debt and for general corporate
purposes.

THE COMPANION ANIMAL HEALTH CARE INDUSTRY

          The market segments in which VCA operates had total domestic revenues
in 1994 of approximately $10.0 billion, composed of approximately $8.2 billion
for veterinary care (animal hospitals and veterinary diagnostic laboratories)
and approximately $1.8 billion for premium pet food.  Approximately 95% of VCA's
revenues for the year ended December 31, 1995 were derived from the veterinary
care segment of the market with the balance coming from premium pet food sales.
VCA classifies its markets by service or product type into three segments,
Animal Hospital, Laboratory and Premium Pet Food.

Animal Hospitals

          Veterinarians diagnose and treat animal illnesses and injuries,
perform surgeries, provide routine medical exams and prescribe medication.  Some
veterinarians specialize by type of medicine, such as orthopedics, dentistry,
ophthalmology or dermatology and may specialize by type of animal.  The United
States market for veterinary services is highly fragmented with approximately
115 million dogs and cats cared for by an estimated 55,000 veterinarians
practicing at 16,000 animal hospitals.  These animal hospitals are primarily
single site, sole practitioner facilities.  VCA believes that the principal
factors in a pet owner's decision as to which veterinarian to use include
convenient location, recommendation of friends, reasonable fees and convenient
hours.

          The animal hospital industry is consolidating.  Factors contributing
to this trend include (i) the desire of some owners of animal hospitals to
diversify their investment portfolio by selling all or a portion of their
investment in the animal hospital, (ii) the buying, marketing and administrative
cost advantages which can be realized by a large, multiple location, multi-
practitioner veterinary provider, (iii) the desire of veterinarians to practice
veterinary medicine rather than spend a large portion of their working time
performing the administrative tasks necessary to operate an animal hospital,
(iv) the cost of financing equipment purchases and upgrading technology
necessary for a successful practice, and (v) the desire of many veterinarians
for more flexible work hours and benefits than are typically available to a sole
practitioner or single site provider.

Veterinary Diagnostic Laboratories

          Given the inability of the patient to communicate verbally with the
doctor, laboratory testing is an important part of the diagnostic process in
veterinary medicine.  Clinical laboratory tests are used by veterinarians to
diagnose, monitor and treat diseases through the detection of substances in
blood or tissue samples and other specimens.

          Veterinary laboratory tests are performed primarily at the animal
hospital, using on-site diagnostic equipment, or at outside veterinary
diagnostic laboratories.  On-site diagnostic equipment is sold by a number of
manufacturers.  For many types of tests, on-site diagnostic equipment can
provide more timely results than outside laboratories but requires the animal
hospital or veterinarian to purchase the equipment and provide trained personnel
to operate it.  Veterinary diagnostic laboratories, such as those operated by
VCA, can provide a wider range of tests than are generally available on-site at
most animal hospitals and do not require any up-front investment on the part of
the animal hospital or veterinarian.  Veterinary laboratory services are also
available through universities and several national laboratory companies.

          The veterinary laboratory industry is highly fragmented and is
primarily characterized by local and regional competitors.  VCA believes that
veterinarians usually prefer to use laboratories that specialize in the
veterinary market and that offer individual attention, rapid test reporting and
response to inquiries by veterinary professionals, a broad spectrum of tests,
convenient sample pick-up times, and customized testing services.

          Achieving rapid sample pick-up, diagnostics and reporting, at
competitive prices, is benefited by high throughput volumes.  VCA believes that
the industry will continue to consolidate as participants seek to gain a cost
advantage.

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Premium Pet Food

          Retail sales of pet food in 1994 approximated $8.8 billion, of which
premium pet food accounted for approximately $1.8 billion.  Over the past ten
years, the supermarket share of pet food retail sales has decreased from
approximately 95% to approximately 55% as customers have gained increased
product knowledge and sought higher quality products offered by premium pet food
retailers, including super-stores and veterinary professionals.  Moreover, a
recommendation from a veterinarian can be instrumental in heightening awareness
and stimulating demand for a particular premium brand.

          Premium pet food differentiates itself from pet food typically offered
by supermarkets primarily through its fixed formulas and high quality
ingredients.  Within the premium pet food segment, brands distinguish themselves
through superior palatability and digestibility as well as offering product
lines tailored to specific life-stages and health conditions.

BUSINESS STRATEGY

          VCA's goal is to become the leading companion animal health care
company serving the animal hospital and veterinary diagnostic laboratory
markets.  VCA intends to achieve this goal by continuing to (i)  expand its
animal hospital and laboratory businesses through acquisitions and internal
growth, (ii) achieve cost savings by consolidating operations and realizing
economies of scale in purchasing and administrative support functions and by
implementing VCA's standard management programs, (iii) take advantage of its
unique opportunity to deliver its products and services through multiple
channels to its customers, primarily veterinarians and pet owners, and (iv)
capitalize on its leadership position within the companion animal health care
industry to expand into other products and services for veterinarians and pet
owners.

          Expand through Acquisitions in New and Existing Markets.  Since 1988
VCA has expanded rapidly  from a single animal hospital in Los Angeles to a
nationwide network of 80 animal hospitals in 16 states at June 20, 1996.  As a
result of these acquisitions and their successful integration into VCA's
operations, VCA has gained a leadership position in the animal hospital
industry, allowing it to expand into the veterinary diagnostic laboratory
business.  Since March 1994, VCA has acquired 10 veterinary diagnostic
laboratories, making it the nation's largest network of veterinary-exclusive
diagnostic laboratories serving over 8,000 animal hospitals located in 40
states.  Assuming the availability of capital, VCA plans to continue its
aggressive acquisition program. VCA will also consider acquiring multiple
hospital organizations and veterinary diagnostic laboratories, as opportunities
arise.

          Consolidate Operations to Enhance Profitability.  Upon the acquisition
of an animal hospital or veterinary diagnostic laboratory, VCA immediately
begins to implement management programs to enhance the productivity of
veterinarians and to improve operating results.  VCA's business model enables it
to realize improved operating margins at its animal hospitals and veterinary
diagnostic laboratories through a strategy of centralizing various corporate and
administrative functions and leveraging fixed costs while providing its
customers with improved services.  This model includes the following objectives:

     Centralize Administrative Functions.  VCA consolidates most administrative
     functions at its corporate office, including purchasing, accounting,
     payroll, data processing, personnel, accounts payable, information
     services, marketing, planning and budgeting and other administrative
     functions.

     Consolidate Purchasing.  When advantageous, VCA purchases its supplies on a
     consolidated basis in order to negotiate better prices and terms from
     vendors.

     Standardize Training Procedures.  VCA implements standardized training
     procedures for its administrators and professional personnel.  These
     programs are developed in conjunction with the Medical Advisory Board and
     Client Services Advisory Board, two entities which are staffed by VCA
     personnel to recommend medical standards and to establish service and
     training standards for local hospitals and laboratories.

          Increase Internal Revenues.  VCA also seeks to expand through internal
growth.  To achieve this, VCA (i) increases veterinarian productivity by freeing
the veterinarian from administrative tasks and providing state-of-the-art
equipment and technical support, (ii) expands the services and operating hours
of certain of its facilities in selected markets, (iii) provides its facilities
with access to medical specialists, (iv) adds VCA's name to the acquired
facilities to enhance customer awareness, and

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<PAGE>
 
(v) implements sales programs to attract new customers.  By implementing these
strategies,  VCA seeks to become the most convenient and most recognized
provider of veterinary services in its markets.

          Improve Management Information Systems.  As soon as possible, the
acquired company's computer system is replaced with one compatible with VCA's
main computer system.  VCA's financial and customer records and laboratory
results are stored in computer databases, most of which may be accessed by VCA's
management.  VCA's management information systems provide VCA with efficient
access to financial and operating data to monitor operating data and target
marketing programs to highly specific customer bases.

          Continue to Capitalize on Existing Relationships to Leverage Lines of
Business.  VCA believes that its three lines of business -- animal hospitals,
veterinary diagnostic laboratories and premium pet food -- are complementary.
As a result of VCA's national presence and name recognition throughout the
veterinary services industry, VCA believes it is building a reputation of
professional integrity and trust among veterinary professionals and brand
identification among pet owners.  VCA's strategy is to leverage this
professional reputation and leadership position to expand its operations, both
in other geographic areas and related products and services.  An example of the
results of this strategy is VCA's joint venture, Vet's Choice, to market premium
pet food.  VCA uses its relationships, as well as its national presence and name
recognition in one line of business to facilitate growth in other lines.  Often,
new business opportunities arise in one line of business from contacts made in
connection with and relations developed through VCA's other lines of business.
For example, animal hospital acquisitions may be developed through contacts
initially established in VCA's veterinary diagnostic laboratory business or from
marketing and other promotional efforts in connection with the sale of its
premium pet food.

ACQUISITION STRATEGY

          Animal Hospitals.  VCA seeks to enter a new market through the
acquisition of one or more relatively large, high quality animal hospitals.  It
has been VCA's experience that this initial acquisition in a new market requires
substantially more time to identify, negotiate and consummate than additional
acquisitions in the same market.  Following this initial acquisition, VCA seeks
to increase its presence in such market as opportunities arise.

          VCA identifies potential candidates for acquisition through its
reputation in the professional community, direct contacts, finder relationships
and advertisements.  VCA believes that acquisition opportunities will continue
to increase as it expands the geographic scope of its operations and the
products and services it offers to the companion animal health care community.
The typical acquisition candidate targeted by VCA is located in a 4,000-6,000
square foot, free-standing facility, has annual revenues of between $700,000 and
$1.5 million per year, employs two to six veterinarians, has an operating
history of at least five years and has achieved positive cash flow at an
attractive location with an established reputation in the community.

          Veterinary Diagnostic Laboratories.  VCA intends to expand its
nationwide network of veterinary-exclusive diagnostic laboratories through
acquisitions and internal growth.  VCA seeks acquisition opportunities in the
veterinary diagnostic laboratory industry which will complement its existing
business or which will expand the geographic area which it services.  VCA has
been able to realize significant cost savings at its veterinary diagnostic
laboratories by consolidating acquired operations into the existing operations,
reducing fixed overhead, sample collection, analysis and the reporting of
results to veterinarians.  By obtaining additional testing volume for the
laboratories and spreading fixed costs over a larger revenue base, the unit
costs of providing laboratory services to clients should decline, producing
improved operating margins.  As a result of these economies of scale, VCA has
the ability to reduce or maintain prices for testing services to customers.

          Acquisition Consideration.   Historically, consideration for
acquisitions has consisted of a combination of cash, the assumption of
liabilities, promissory notes and VCA Common Stock.  VCA normally obtains
noncompetition and employment agreements from the selling owners.  VCA presently
is evaluating and negotiating a number of potential acquisitions, none of which
are, individually, material to VCA.  There can be no assurance, however, that
VCA will be able to identify and acquire animal hospitals or veterinary
diagnostic laboratories on terms favorable to VCA in the future, or in a timely
manner, or convert the acquisitions to the VCA business model as planned.  See
"RISK FACTORS--Rapid Expansion and Management of Growth."

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OPERATIONS AND MARKETING

Animal Hospitals

          VCA believes it operates one of the largest networks of free-standing
full-service animal hospitals in the United States.  At June 20, 1996, VCA owned
80 animal hospitals, 19 of which were located in Northern California, 18 in
Southern California, eight in Pennsylvania, six in Massachusetts, five in
Nevada, four in Maryland and three in each of Alaska, Florida and New Mexico,
two in each of Colorado, Utah and Virginia, and one in each of Arizona, Georgia,
Hawaii, Illinois and Delaware.

          VCA's animal hospitals offer a full range of general medical and
surgical services for small animals, including dogs, cats, birds and other
household pets.  In addition to treating disease and injury, VCA's hospitals
emphasize pet wellness through pet health education and preventative care and
offer programs to encourage routine vaccinations, health examinations, spaying
and neutering and dental care.  VCA offers specialized treatment, including
advanced diagnostic services, internal medicine, surgery, oncology,
ophthalmology, dermatology and cardiology.  Additional services provided by VCA
at certain locations include grooming, bathing and boarding.  VCA also sells
specialty pet products at its hospitals, including pet food, a full range of
pharmaceuticals, vitamins, therapeutic shampoos and conditioners, flea collars
and sprays and other accessory products.

          VCA's facilities are open an average of 10 to 15 hours per day, six to
seven days per week.  Several of its facilities provide 24-hour emergency care
service.

          VCA seeks to provide a uniform and broad range of quality veterinary
services.  To accomplish this goal, VCA actively recruits highly qualified
veterinarians and technicians and is committed to supporting continuing
professional education for its professional and lay staff.  VCA operates two of
the largest teaching programs maintained at privately owned animal hospitals.
VCA believes that these programs enhance its reputation in the veterinary
profession and provide it with access to qualified recruits among graduating
classes of veterinarians.  VCA believes it is an employer of choice for
veterinarians because it offers an increased patient flow and a diverse case
mix, employee benefits not generally available to a sole practitioner,
continuing education, management opportunities, scheduling flexibility to
accommodate personal lifestyles and the ability to relocate to different regions
of the country.

          To support VCA's operations, VCA has established a Medical Advisory
Board, whose function is to recommend medical standards, and a Service Advisory
Committee that establishes service and training standards for local hospitals.
The committees are comprised of leading veterinarians and managers representing
different geographic regions and medical specialties served by VCA.

          Seeking to provide state-of-the-art medical care in a clean,
attractive environment, VCA renovates facilities and upgrades its equipment on a
periodic basis.  In addition, VCA provides, at some of its locations, board
certified or board eligible veterinarians in such specialized fields as internal
medicine, surgery, oncology, ophthalmology, dermatology, orthopedics and
cardiology to expand the range of services available at its facilities.

          VCA's animal hospitals generally require a staff of between 10 to 60
full-time equivalent employees, depending upon the facility's size and customer
base.  The staff includes administrative and technical support personnel, two or
more veterinarians, an office manager who supervises the day-to-day activities
of the facility and a small office staff.  VCA employs a relatively small
corporate staff to provide centralized administrative  services to all of its
veterinary hospitals.  Financial control is maintained through uniform fiscal
and accounting policies which are established at the corporate level for use at
the hospitals.  Financial information is centralized through a computerized data
collection and processing system at the corporate level.

          Use of veterinary services has traditionally been seasonal.  In
addition, use of veterinary services may be affected by weather conditions,
levels of infestation of fleas, heartworms and ticks, the number of daylight
hours and general economic conditions.  The seasonality of the use of veterinary
services may cause operating results to vary significantly from quarter to
quarter.  In each of the last five years, demand for VCA's services has been
greater in the second and third quarters than in the first and fourth quarters.

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          VCA's internal marketing programs rely heavily on its existing client-
base in order to increase the frequency and intensity of the services used by
its clients.  Reminder notices are used to increase awareness among VCA's
customers of the advantages of regular, comprehensive veterinary medical care,
including preventive care, such as vaccinations, dental screening and geriatric
care.  VCA seeks to obtain referrals from veterinarians by promoting its
specialized diagnostic and treatment capabilities to veterinarians and
veterinary practices which cannot offer their clients such services.

          As the number of hospitals in a single regional network grows, media
advertising of VCA's services will become increasingly cost effective.  VCA
believes that an effective media advertising program will allow VCA to establish
brand identification as well as expand the revenues derived from the sale of new
and existing services and products. Such programs, services and products, VCA
believes,  may increase the opportunities to expand VCA's market share in the
regional markets for veterinary services in which it competes.

Veterinary Diagnostic Laboratories

          VCA operates one of the largest networks of veterinary-exclusive
diagnostic laboratories in the United States, servicing approximately 8,000
animal hospitals located in 40 states.  VCA operates three full-service
laboratories located in Irvine, California (serving Southern California and the
Southwest), Valparaiso, Indiana (serving the Chicago metropolitan area and other
parts of the Midwest) and Farmingdale, New York (serving the East Coast).  These
laboratories also serve as STAT (quick response) laboratories, which are in
addition  to VCA's STAT laboratories located in Dallas and Houston, Texas;
Kansas City, Missouri; Phoenix, Arizona; Orlando, Florida; Reno, Nevada; San
Jose, California; and Portland, Oregon.

          The veterinary laboratory industry is highly fragmented with many
local and regional competitors, as well as several large independent laboratory
companies.  Veterinarians usually prefer to use laboratories that specialize in
the veterinary market and that offer individual attention, rapid test reporting
and response to inquiries by veterinary professionals, a broad spectrum of
tests, convenient sample pick-up times and customized testing services.

          Because the patient cannot communicate verbally with the veterinarian,
laboratory testing is an important diagnostic tool.  VCA regularly performs
numerous types of diagnostic laboratory tests, including chemistry, hematology,
cytology, anatomical pathology as well as other disease-specific tests.
Clinical tests are performed on animal fluids such as blood or urine and provide
information that is used by veterinarians for medical diagnosis.  VCA does not
conduct experiments on animals and is not engaged in animal research.  VCA
performs most of its clinical tests with state-of-the-art automated laboratory
testing equipment.

          The first step in the testing process is for a veterinarian to take a
specimen from the patient and complete a test request form indicating the tests
to be performed on that specimen.  The specimen is then picked up by the
laboratory's driver or by a commercial courier service and delivered to one of
VCA's laboratories for testing.  When received at the laboratory, each specimen
and related request form is checked for accuracy and completeness and then given
a unique identification number to ensure that the results are attributed to the
appropriate animal.  The test request information is entered into the
laboratory's computer system, where a file of testing and billing information is
established for each specimen.  Once this information is entered, the tests are
performed by one of the laboratory technicians or by utilizing VCA's automated
testing equipment.  Test results are entered into the computer system through a
computer interface or, in some instances, manually, depending upon the test and
the type of equipment used to conduct the test. Most routine testing is
completed at night and the test results are automatically transmitted via modem
or fax machine to the veterinarian before the start of business the next
morning.

          VCA's STAT laboratories perform certain routine tests quickly and
report results to veterinarians within hours of being picked up from the
veterinarian.  The turnaround time at VCA's STAT laboratories for reporting test
results is generally three hours or less.  The STAT laboratories are located in
geographic areas where there is high concentration of veterinarians and an
airline hub-operation.  VCA may establish or close STAT laboratories depending
upon the volume of tests performed and the needs of its veterinarian-clients.

          In addition to testing operations, VCA provides a variety of
laboratory services to its veterinarian-clients which VCA believes enhances its
competitive position.  These include:

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               Reporting.  Rapid turnaround of test results is critical to the
     successful operation of a clinical laboratory.  Usually, routine testing is
     performed overnight and results are transferred to the veterinarian by
     modem or fax machine before 8:00 a.m. the following day.

          Specimen Transportation.  VCA has developed an extensive network of
     drivers and independent couriers which enables VCA to provide timely pickup
     and delivery of specimens to its laboratories.  Specimens are picked up
     from clients and transported to VCA's laboratory facilities on a daily
     basis, and in some areas, twice each day.

          Client Service.  Veterinarians are not obligated to use any particular
     laboratory's services and can change laboratory service providers at any
     time.  Therefore, the services offered by a laboratory are critical to
     client satisfaction and retention.  In addition to emphasizing client
     service through rapid turnaround time and electronic reporting, VCA has
     veterinarian specialists on staff to assist the veterinarians to interpret
     the lab's results, make diagnoses or treat disease. Accordingly, the
     laboratories' staff of professionals includes board certified specialists
     in pathology, internal medicine, oncology, cardiology, dermatology,
     neurology and endocrinology.

          Quality Assurance.  VCA's quality assurance programs are intended to
     ensure that specimens are collected and transported properly, tests are
     performed accurately, and client, patient and test information is reported
     and billed correctly.  The quality assurance programs include testing
     quality control specimens of known concentration or reactivity in order to
     ensure accuracy and precision, routine checks and preventive maintenance of
     laboratory testing equipment, and personnel standards which ensure that
     only qualified personnel perform testing.

          VCA has eight full-time sales and marketing staff in its Laboratory
segment.  VCA also augments its sales force with field service representatives
whose primary responsibility is maintaining relationships with existing
customers. To support its marketing efforts, VCA, among other activities,
develops marketing literature, attends trade shows, involves itself in trade
associations and provides educational services.

Premium Pet Food

          Products

          Through its Vet's Choice joint venture with Heinz Pet Products, VCA
markets and distributes two lines of premium pet food.  The first line of
products offered by Vet's Choice was a complete line of premium, life-stage pet
foods marketed under the brand name Select Balance.  The Select Balance line
consists of dry and canned dog and cat food products nutritionally tailored to
meet the specific dietary needs of dogs and cats in different stages of their
lives.  In March 1995, the joint venture commenced to market and distribute a
second product line of  premium therapeutic pet foods, marketed under the brand
name Select Care.  The Select Care line consists of dry and canned dog and cat
food products, nutritionally tailored to meet the specific dietary needs of dogs
and cats afflicted with illness or disease or other medical conditions requiring
special diets.

          Marketing and Distribution

          VCA began selling the Select Balance line of pet foods to veterinary
hospitals and clinics in the Spring of 1994.  In January 1995, VCA expanded
distribution of the Select Balance line to specialty pet store and pet food
super-store markets.  In March 1995, VCA commenced distribution of its Select
Care line of pet foods to veterinary hospitals and clinics.   The Select Care
line may be consumed throughout all stages of an animal's life, but because of
its therapeutic attributes, the products should be used only upon the
recommendation of a veterinarian.  For this reason, VCA does not intend to
expand distribution of the Select Care pet food line beyond veterinary hospitals
and clinics.

          VCA markets its products to veterinary hospitals and clinics
principally through its own direct sales force.  VCA's sales force generates
sales by calling on animal hospitals and assisting customers in inventory
planning, arranging and displaying VCA's products and educating the staff about
the product line.  VCA intends to market its pet food to retail pet stores
jointly through its sales force and through distributors.  VCA is currently
engaged in discussions with several other distributors throughout the United
States.  The activities of VCA's direct sales force are supervised by a national
sales manager and three

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regional sales managers.  VCA's sales force is compensated by a salary plus
commission on net sales made in their respective territories.

          Knowledge and acceptance of VCA's brands by veterinarians and other
veterinary professionals is of significant importance to achieving widespread
consumer acceptance of VCA's pet products.  VCA believes that its leadership
position in the animal hospital industry can therefore play a significant role
in creating customer awareness and acceptance of the Select Balance and Select
Care products.  To assist in marketing its pet food products to the veterinary
community, VCA has formed affiliations with groups of veterinary professionals
in the regional markets in which it competes.  These professional affiliations
are established and maintained in conjunction with VCA's Partners In Management
program, which provides discount purchasing programs, training and marketing
programs, continuing education and other professional hospital management
services to veterinary hospital owners.  More than 1,300 hospitals and 5,800
animal hospital employees have joined VCA's Partners In Management program. In
addition to the Partners In Management program's promotional efforts,  VCA
intends to actively participate in seminars, trade shows and professional
conferences and to contact veterinarians and clinic personnel through direct
mailings, advertising and promotional campaigns.

          Manufacturing

          VCA's Select Balance product line is manufactured by Heinz Pet
Products pursuant to a manufacturing agreement between Heinz Pet Products  and
Vet's Choice.  VCA's Select Care product  line is manufactured under a contract
with an independent manufacturer located in Canada.  If either Heinz Pet
Products or VCA's other manufacturer were to cease supplying VCA with product,
VCA believes it could arrange for manufacture of its product by alternate
sources.

FEES AND SOURCES OF PAYMENT

          VCA's fees for provision of veterinary and laboratory services vary
upon the complexity of the required procedure, the relative involvement of the
applicable professionals and local market conditions.  VCA does not incur a
significant amount of accounts receivable for the provision of veterinary
services since payment for these services is generally received at the time
services are provided.  VCA offers its laboratory services and sells its pet
food on customary commercial terms, requiring payment within 30 days of the date
the service or product is performed or shipped.  VCA is not dependent upon third
party payors for collection of its fees.

SYSTEMS

          VCA realized the importance of management information systems in the
past and thus has made a significant investment in these systems.  Currently,
substantially all of the animal hospitals operate on a common computer system
which is linked to a computer at VCA's headquarters.  All of VCA's financial and
customer records and laboratory results are stored in computer databases, most
of which may be accessed by VCA's management.

          The computer system provides VCA with efficient access to all
financial and operating data to monitor operating data and target marketing
programs to highly specific customer bases.

          VCA intends to further upgrade and integrate its management
information system.  When completed, VCA believes that this enhanced management
information system will allow for further cost savings and provide  management
with a powerful tool in implementing its marketing and operating strategies.

COMPETITION

          The companion animal health care industry is highly competitive.  In
its Animal Hospital segment, VCA competes primarily with independent
veterinarians established in private practices or small regional multi-clinic
practices.  In addition, certain national companies in the pet care industry,
including the operators of super-stores, are developing multi-regional networks
of animal hospitals in markets which include VCA's markets.  The provision of
veterinary services is highly fragmented, with approximately 55,000
veterinarians nationwide practicing in an estimated 16,000 veterinary hospitals
and clinics.  VCA believes that convenient location, recommendation of friends,
reasonable fees and convenient hours are the

                                       60
<PAGE>
 
principal factors in a pet owner's decision as to which veterinarian to use.
VCA believes its facilities are competitive and are designed to respond to the
needs of the pet owner.

          Competition in the veterinary diagnostic laboratory industry is
intense.  VCA believes that there are many diagnostic laboratory companies which
provide a broad range of laboratory testing services in the same markets
serviced by VCA.  Additionally, there are many animal hospitals that provide in-
house laboratory services.  Competition is based primarily upon quality, price
and the time required to report results.

          Competition among manufacturers of premium pet products is intense
among all segments of the dog and cat food markets.  Distribution in the
veterinary practice and specialty pet shops segment is dominated by two
competitors, Hill's, which manufactures Science Diet products, and Iams, which
manufactures Iams and Eukanuba products.  These companies have extensive
experience in the manufacture of premium pet food products, use highly
competitive tactics and possess research, development, manufacturing, marketing
and financial resources far greater than that of Vet's Choice.  VCA believes
that its ability to penetrate these markets will be significantly enhanced by
its leadership position in the veterinary professional market and by the
experience and resources of its joint venture partner, Heinz Pet Products.

JOINT VENTURE AGREEMENTS

          VCA is a party to joint venture agreements relating to the operation
of Vet Research Laboratories, LLC ("Vet Research") and Vet's Choice.  The
following is a brief summary of each of these agreements.

          Vet Research.  In January 1995, VCA significantly expanded its
laboratory services to include coverage on the East Coast with the acquisition
of Cenvet, Inc. ("Cenvet").  VCA then contributed the Cenvet assets to a joint
venture, Vet Research, and its joint venture partner, Vet Research, Inc. ("VRI")
contributed the operations of its full service laboratory.  VCA is the managing
partner in the joint venture and has a 51.0% undivided interest in Vet Research.
The operating results of Vet Research are accounted for as part of the
consolidated operations of VCA.  Cash is allocated pursuant to a formula during
each contract year, whereby the first $1.5 million is allocated to VRI; the next
$3.0 million is allocated to VCA and the remaining cash is allocated 25 percent
to VCA and 75 percent to VRI.  The 1995 results include minority interest
expense of 52.4 percent of Vet Research's income.  VCA has the option in January
1997 to acquire the remaining 49.0 percent interest in Vet Research.

          Vet's Choice.  VCA entered the premium pet foods market in January
1993 when it formed Vet's  Choice, a joint venture with Heinz Pet Products, an
affiliate of H.J. Heinz Company, to develop, manufacture, market, distribute and
sell premium pet products.  VCA is the managing general partner in the venture,
with a 50.5% equity interest and is responsible for managing the day-to-day
operations of the partnership.  Allocation of profits and losses is in
proportion to the respective interests of the partners.  On or after the earlier
of a change of control in VCA or January 1, 2000, Heinz Pet Products may
purchase all of VCA's interest in the partnership at a purchase price equal to
the fair market value of such interest.  If Heinz Pet Products fails to exercise
its option prior to January 1, 2001, VCA may purchase all of Heinz Pet Products'
interest in the partnership at a purchase price equal to the fair market value
of such interest.  The proposed acquisition of Pet Practice will not result in a
change of control for purposes of the Vets' Choice joint venture.

          In connection with the formation of Vet's Choice, Heinz Pet Products
invested $3.0 million in VCA through its purchase of 583,333 shares of non-
voting Series A Convertible Preferred Stock which, at the time of the
investment, represented an investment in ten percent of the outstanding equity
of VCA.

          Other Joint Venture Arrangements.  VCA also operates several of its
animal hospitals through joint ventures or partnerships with one or more of the
veterinarians employed at the facility.  In each case, VCA is the majority owner
and managing partner of the joint venture.  When appropriate, VCA anticipates
forming similar joint ventures in the future.

GOVERNMENT REGULATION

          The operation of veterinary hospitals and laboratories is not subject
to significant government regulation.  All of the states in which VCA operates,
however, impose various registration requirements.  To fulfill these
requirements, VCA has properly registered each of its facilities with
appropriate governmental agencies and, where required, has appointed a licensed
veterinarian to act on behalf of each facility.  All veterinary doctors
practicing in VCA's clinics are required to maintain valid,

                                       61
<PAGE>
 
unexpired and unrevoked state licenses to practice.  VCA believes that some
states, in which it does not currently do business, may limit the ability of a
corporation to operate facilities at which veterinary medicine is practiced.  In
addition, although VCA does not anticipate significant additional government
regulation, such developments could significantly limit its business or
expansion.

          VCA's growth strategy is dependent principally on its ability to
acquire existing animal hospitals and veterinary diagnostic laboratories.
Acquisitions may be subject to pre-merger or post-merger review by governmental
authorities for anti-trust and other legal compliance.  Adverse regulatory
action could negatively affect VCA's operations through the assessment of fines
or penalties against VCA or the possible requirement of divestiture of one or
more of VCA's operations.  In October 1995, the staff of the FTC contacted VCA
and requested information for an informal inquiry regarding VCA's formation of
its Vet Research joint venture.  The staff has made no allegation of wrongdoing
on the part of VCA and has not initiated a formal investigation.  VCA responded
to the staff's request and furnished all of the requested information.  VCA is
not aware of the status of the inquiry.

EMPLOYEES

          At December 31, 1995, VCA had approximately 1,150 full-time-equivalent
employees, including approximately 250 licensed veterinarians.  None of VCA's
employees are covered by a collective bargaining agreement.  VCA believes that
its relations with its employees are satisfactory.

PROPERTIES

          VCA's corporate headquarters and principal executive offices for VCA
and Vet's Choice are located in Santa Monica, California, in approximately
21,000 square feet of space occupied under a lease which expires on March 3,
1999.  The lease currently provides for aggregate minimum monthly rental
payments of approximately $27,000.  VCA maintains leased and owned facilities at
63 other locations which house its animal hospitals and laboratories.  VCA owns
12 facilities and the remainder are leased from third parties.  For the year
ended December 31, 1995, VCA had lease costs of approximately $2,620,000 and VCA
expects to have lease costs at facilities existing at December 31, 1995 of
approximately $3,608,000 in 1996.  Lease costs for the hospitals acquired since
December 31, 1995 will amount to approximately $364,000 in 1996.  VCA believes
that its real property facilities are adequate for its current needs.

LEGAL PROCEEDINGS

          VCA is not a party to any material litigation.

                                       62
<PAGE>
 
EXECUTIVE OFFICERS AND DIRECTORS OF VCA

          Information with respect to the directors and executive officers of
VCA as of March 31, 1996 is as follows:

<TABLE>
<CAPTION>
 
Name                         Age               Position
- ----                         ---               --------
 
 
<S>                          <C>   <C>
Robert L. Antin...........    46   Chairman of the Board and Chief Executive
                                   Officer
                                   of VCA
Arthur J. Antin...........    49   Chief Operating Officer, Senior Vice President,
                                   Secretary and Director
Neil Tauber...............    45   Senior Vice President
Tomas W. Fuller...........    38   Chief Financial Officer, Vice President and
                                   Assistant Secretary
Deborah W. Moore..........    31   Chief Accounting Officer, Vice President and
                                   Controller
John B. Chickering, Jr....    47   Director
Richard Gillespie, M.D....    62   Director
John A. Heil..............    42   Director
</TABLE>

          Robert L. Antin and Arthur J. Antin are brothers.  There are no other
family relationships between any director and/or any executive officer of VCA.

          MR. ROBERT L. ANTIN, a founder of VCA, has served as Chief Executive
Officer, President and Chairman of the Board of VCA since its inception.  Mr.
Antin is responsible for directing all aspects of VCA's business.  From
September 1983 until founding VCA, Mr. Antin was President, Chief Executive
Officer, a director and co-founder of AlternaCare Corp., a publicly held company
which owned, operated and developed free-standing outpatient surgical centers.
AlternaCare Corp. was acquired by Medical Care International in 1988.  From July
1978 until September 1983, Mr. Antin was employed as an officer by American
Medical International, Inc. ("AMI"), an owner and operator of health care
facilities.  While at AMI, Mr. Antin initially served as Director of Marketing
of Professional Hospital Services, then as Director of New Business Development
responsible for non-hospital related acquisitions and development, and most
recently as a Vice President of AMI and President of AMI Ambulatory Center,
Inc., a subsidiary of AMI operating a chain of ambulatory care centers.  Mr.
Antin received his MBA degree with a certification in hospital and health
administration from Cornell University in 1975.

          MR. ARTHUR J. ANTIN, a founder of VCA, has served as Chief Operating
Officer, Senior Vice President, Secretary and a Director of VCA since its
inception, and is currently responsible for managing animal hospital and
veterinary laboratory operations for VCA.  From October 1983 to September 1986,
Mr. Antin served as Director of Marketing/Investor Relations of AlternaCare
Corp., in which he developed and implemented marketing strategies for a network
of outpatient surgical centers.  Mr. Antin received an M.A. degree in Community
Health from New York University and a Post Graduate Certificate in Structured
Programming and Business Application design from Columbia University.

          MR. NEIL TAUBER, a founder of VCA, has served as Senior Vice President
and a Director of VCA since its inception and is currently responsible for
identifying and effecting the acquisition of independent animal hospitals and
veterinary diagnostic laboratories.  From 1984 to 1986, Mr. Tauber served as the
Director of Corporate Development at AlternaCare Corp., where his
responsibilities included the acquisition of new businesses and syndication to
hospitals and physician groups.  From 1981 to 1984, Mr. Tauber served as Chief
Operating Officer of MDM Services, a wholly owned subsidiary of Mediq, a
publicly held health care company, where he was responsible for operating and
developing a network of retail dental centers and industrial medical clinics.
Mr. Tauber holds an MBA from Wagner College.

          MR. TOMAS W. FULLER  joined VCA in January 1988 and served as Vice
President and Controller until November 1990 when he became Chief Financial
Officer.  Prior to joining VCA, from 1980 to 1987, Mr. Fuller served as an audit
manager

                                       63
<PAGE>
 
for Arthur Andersen LLP.  Mr. Fuller holds a BA degree in business/economics
from the University of California at Los Angeles (UCLA).

          MS. DEBORAH W. MOORE, a Certified Public Accountant, joined VCA in
September 1992 and served as Controller until becoming Vice President, Chief
Accounting Officer in 1995.  Ms. Moore served as a staff accountant at Arthur
Andersen LLP and subsequently as Controller for Chiat/Day/Mojo Inc. prior to
joining VCA.  Ms. Moore holds a BA in Economics/Accounting from Claremont
McKenna College.

          MR. JOHN B. CHICKERING, JR., a Certified Public Accountant, is
currently the Vice President - Financial Administration for Warner Bros.
International Television Distribution.  Prior to his employment at Warner Bros.,
Mr. Chickering served as a staff accountant at KPMG Peat Marwick from August
1975 to June 1977.  Mr. Chickering holds an MBA degree with emphasis in
accounting and finance from Cornell University.  Mr. Chickering has served as a
Director of VCA since November 1988.

          RICHARD GILLESPIE, M.D., was elected to the Board of Directors in June
1995.  Dr. Gillespie is a private investor who has investments in several
companies in the United States.  From 1983 to 1987, Dr. Gillespie was Vice-
President, a director and co-founder of AlternaCare Corp.  Dr. Gillespie also
has served as a director for several other companies, including Lansinoh
Laboratories, Inc. and Geriatric Medical Center, and as the general partner of
Outpatient Diagnostics Center.  Dr. Gillespie holds an MD degree from the
University of Tennessee College of Medicine.

          MR. JOHN A. HEIL, currently serves as the Vice President-Marketing for
Heinz Pet Products.  Since 1978, Mr. Heil has served in various capacities with
other affiliates of the H.J. Heinz Company, including General Manager, Marketing
of Ore-Ida Foods, Inc. and Vice President - Marketing and Sales of Star-Kist
Foods, Inc.  Mr. Heil holds a B.A. degree in economics from Lycoming College.
Mr. Heil has served as a Director of VCA since May 1995.

BOARD MEETINGS AND COMMITTEES

          The VCA Board held a total of four meetings during the fiscal year
ended December 31, 1995.  The VCA Board has an Audit Committee and a
Compensation Committee.  The VCA Board does not have a Nominating Committee or a
committee performing similar functions.  During the fiscal year ended December
31, 1995, each director attended at least 75% of the meetings of the VCA Board
held while he was a director and of the Committees of the VCA Board on which he
served.

          The Audit Committee met one time and the Compensation Committee met
two times during the fiscal year ended December 31, 1995.  The Audit Committee's
functions include recommending to the VCA Board the engagement of VCA's
independent auditors, reviewing and approving the services performed by the
independent auditors and reviewing and evaluating VCA's accounting policies and
internal accounting controls.  The Compensation Committee reviews and approves
the compensation of officers and key employees and determines and approves the
granting of options under VCA's various stock incentive plans.  During the
fiscal year ended December 31, 1995, the members of the Audit Committee were
Messrs. Robert L. Antin and John B. Chickering, Jr.; and the members of the
Compensation Committee were Messrs. John B. Chickering, Jr. and Richard
Gillespie, M.D.  Mr. Jean-Charles Lignel also served on the Compensation
Committee during a portion of fiscal 1995.  Mr. Lignel is no longer a director
of VCA.

COMPENSATION OF DIRECTORS

          Directors of VCA who are not also employees of VCA receive $1,000 for
each meeting of the VCA Board that they attend in person plus reimbursement of
all out-of-pocket expenses incurred in attending such meetings.  In addition,
non-employee directors, John B. Chickering, Jr., John Heil, Richard Gillespie
and former non-employee director Jean-Charles Lignel each were granted options
to purchase 10,000 shares of VCA Common Stock upon appointment or election to
the VCA Board.  On the respective anniversaries of their joining the VCA Board,
each of the current non-employee directors, if they retain such status, will
receive an additional option to purchase 5,000 shares of VCA Common Stock.

                                       64
<PAGE>
 
COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

          During the last fiscal year, executive compensation and the grant of
options under VCA's various stock incentive plans was administered by the
Compensation Committee of the VCA Board.  The directors of the Corporation who
served on the Compensation Committee were Robert L. Antin, Jean-Charles Lignel
and John B. Chickering, Jr.  Mr. Robert L. Antin is the Chairman of the Board
and Chief Executive Officer of VCA.  None of Messrs. Lignel, Chickering or Heil
is, nor has any of them ever been, an officer or employee of VCA.  Mr. Lignel is
no longer a director of VCA.

REPORT OF THE COMPENSATION COMMITTEE

          The following report of the Compensation Committee to the VCA Board
shall not be deemed to be included in or incorporated by reference into any
filing by VCA under the Act or the Exchange Act including any filing that
incorporates Securities Act or Exchange Act filings in whole or in part by
reference.

GENERAL

          The Compensation Committee of the VCA Board (the "Committee") is
responsible for establishing and administering the policies that govern
executive compensation for executive officers and key employees of VCA.

COMPENSATION PHILOSOPHY

          VCA's executive compensation program is designed to (1) provide levels
of compensation that integrate pay and incentive plans with VCA's strategic
goals so as to align the interests of executive management with the long-term
interests of VCA's stockholders; (2) attract, motivate and retain executive
talent capable of achieving the strategic business goals of VCA; (3) recognize
outstanding individual contributions; and (4) provide compensation opportunities
which are competitive to those offered by other companies of similar size and
performance. To achieve these goals, VCA's executive compensation program
consists of three main elements: (i) base salary, (ii) annual cash bonus and
(iii) long-term incentives.  Each element of compensation has an integral role
in the total executive compensation program.

BASE SALARY

          Base salaries for executive officers are determined on an annual basis
by evaluating each executive officer's, including Mr. Robert Antin's, position,
duties, responsibilities, tenure, performance and potential contributions to
VCA.  This determination also takes into account the Committee's assessment of
competitive compensation packages for comparable positions in the Southern
California market.  The Committee made no formal survey of similarly situated
companies but instead relied upon the general experience of its members and
information supplied by management in assessing the appropriate levels of base
compensation.  The financial performance of VCA is also considered. Finally,
factors consistent with VCA's overall compensation policy are taken into
account.

          VCA also provides to its employees (including Mr. Robert Antin and the
other officers) medical insurance and other customary employee benefits.  VCA
pays term life insurance premiums for the benefit of Messrs. Robert Antin,
Arthur Antin, Neil Tauber and Tomas Fuller, which amounted in fiscal 1995 to
approximately $29,100, $20,640, $17,400 and $11,300, respectively.

ANNUAL CASH BONUSES

          Historically, executive officers have been eligible for annual
incentive bonuses in amounts determined at the discretion of the Committee.  In
fiscal 1995, the Committee determined to place greater weight on long-term
incentives represented by stock options than on the award of annual cash
bonuses.  Consequently, with the concurrence of the executive officers, VCA
awarded no cash bonuses to the executive officers with respect to fiscal 1995
and, in lieu thereof, provided larger individual stock option grants than had
historically been the case.  The Committee intends that annual cash bonuses be
part of VCA's long-term executive compensation program and may elect to continue
the practice in fiscal 1996 and subsequent years.  Historically, the Committee
has considered an award of an annual bonus subjectively, taking into account
factors such as the financial performance of VCA, increases in stockholder
value, the enhancement of VCA's image and reputation, expansion into new

                                       65
<PAGE>
 
markets, and the achievement of corporate goals and individual performance.  The
Committee has  attributed various weights to these factors based upon their
perceived relative importance to VCA at the time compensation determinations
were made.

LONG-TERM INCENTIVES

          The Committee provides VCA's executive officers with long-term
incentive compensation through grants of stock options.  The Committee is
responsible for selecting the individuals to whom grants should be made, the
timing of grants, the determination of the per share exercise price and the
number of shares subject to each option awarded.  The Committee believes that
stock options provide VCA's executive officers with the opportunity to purchase
and maintain an equity interest in VCA and to share in the appreciation of the
value of the VCA Common Stock.  The Committee believes that stock options
directly motivate an executive to maximize long-term stockholder value.  The
options incorporate vesting periods in order to encourage key employees to
continue in the employ of VCA.  All options granted to executive officers during
fiscal 1995 were granted at the fair market value of the VCA Common Stock on the
date of grant.  The Committee considers the grant of each option (including
those granted to Mr. Robert Antin) subjectively, considering factors such as the
individual performance of executive officers and competitive compensation
packages in the industry.

CHIEF EXECUTIVE OFFICER

          Mr. Robert Antin's base salary ($265,000 for fiscal 1996) and the size
of the stock option grants during fiscal 1995 (options to purchase an aggregate
of 280,000 shares of VCA Common Stock) were determined based upon Mr. Robert
Antin's services to VCA and the financial performance of VCA in the fiscal year
ended December 31, 1995.  The most important criteria relied upon by the
Committee was its assessment of the leadership and vision provided by Mr. Antin
in securing substantial progress toward the achievement of VCA's long-term
strategic goals.  In particular, the Committee took into account the significant
expansion of VCA's presence in the veterinary laboratory business in 1995 and
the expansion of its premium line of pet food to include therapeutic foods.  In
addition, VCA continued its successful acquisition program in the veterinary
hospital industry.  Further, VCA achieved significant liquidity with the
completion of a secondary offering of its Common Stock in November 1995.

SUMMARY

          The Committee believes that its executive compensation philosophy of
paying VCA's executive officers by means of base salaries, annual cash bonuses
and stock option grants, as described in this report, serves the interests of
VCA and VCA's stockholders.


Compensation Committee:    John B. Chickering, Jr.
                           Richard Gillespie, M.D.
                           Jean Charles Lignel

                                       66
<PAGE>
 
SUMMARY COMPENSATION TABLE

          The following table shows, as to the Chief Executive Officer and as to
each of the other three most highly compensated executive officers (the "Named
Executive Officers") whose salary plus bonus exceeded $100,000 during the last
fiscal year, information concerning all compensation paid for services to VCA in
all capacities during the last three fiscal years.

                           SUMMARY COMPENSATION TABLE
<TABLE>
<CAPTION>
                                                                                   LONG TERM
                                            ANNUAL COMPENSATION                  COMPENSATION
                             ------------------------------------------------------------------ 
NAME AND PRINCIPAL                                              OTHER ANNUAL      STOCK OPTION     ALL OTHER
POSITION                     YEAR    SALARY        BONUS      COMPENSATION (1)     AWARDS (2)     COMPENSATION
- --------------------------   ----   ---------   -----------   ----------------   --------------   ------------
<S>                          <C>    <C>         <C>           <C>                <C>              <C>
Robert L. Antin              1995   $ 241,091   $      -0-            $ 8,800          280,000             -0-
Chairman of the Board        1994     205,730      30,890 (3)           9,600           25,000             -0-
and Chief Executive          1993     196,978          -0-             12,000           90,000             -0-
Officer                            
 
Arthur J. Antin              1995     170,915          -0-              7,200          140,000             -0-
Chief Operating              1994     146,953      21,480 (3)           7,200           25,000             -0-
Officer, Senior              1993     139,742          -0-              6,000           50,000             -0-
Vice President
and Secretary

Neil Tauber                  1995     144,038          -0-              7,200          120,000             -0-
Senior Vice                  1994     120,000      17,592 (3)           7,200           25,000             -0-
President                    1993     115,896          -0-              6,000           50,000             -0-

Tomas W. Fuller              1995     101,214          -0-              6,000          110,000             -0-
Chief Financial Officer      1994      92,500      13,090 (3)           6,000           10,000             -0-
and Vice President           1993      88,883          -0-              6,000           50,000             -0-
 
- ----------
</TABLE>

(1)  Includes automobile allowance.

(2)  All numbers reflect the number of shares of VCA Common Stock subject to
     options granted during the fiscal year.

(3)  Reflects bonus awards granted in March 1995 for services rendered during
     the fiscal year ended December 31, 1994.

                                       67
<PAGE>
 
OPTION GRANTS IN LAST FISCAL YEAR

The following table sets forth certain information regarding grants of stock
options made during the fiscal year ended December 31, 1995 to the Named
Executive Officers:

<TABLE>
<CAPTION>
 
                                                 OPTION GRANTS IN LAST FISCAL YEAR
 
                                                      INDIVIDUAL GRANTS
                     ------------------------------------------------------------------                                       
                                                                                           Potential Realizable Value at Assumed
                                           Percent of Total                            Annual Rates of Stock Price Appreciation for 
                           Number of       Options Granted    Exercise or                             Option Term (1)
                            Options        to Employees In    Base Price    Expiration --------------------------------------------
Name                      Granted  (2)     Fiscal Year (3)    Per Share (4)     Date             5%                      10%
- ------------------        -------------    ----------------   ------------- ----------     -------------             --------------
<S>                     <C>            <C>                    <C>           <C>            <C>                       <C> 
Robert L. Antin               80,000              9.4%         $10.50           3/4/05      $  528,271               $1,338,744
                             200,000             23.4%          12.38          11/7/05       1,556,514                3,944,513
Arthur J. Antin               40,000              4.7%          10.50           3/4/05         264,136                  669,372
                             100,000             11.7%          12.38          11/7/05         778,257                1,972,256
Neil Tauber                   40,000              4.7%          10.50           3/4/05         264,136                  669,372
                              80,000              9.4%          12.38          11/7/05         622,606                1,577,805
Tomas W. Fuller               40,000              4.7%          10.50           3/4/05         264,136                  669,372
                              70,000              8.2%          12.38          11/7/05         544,780                1,380,579
- ---------------------
</TABLE>
(1)  The potential realizable value is based on the assumption that the VCA
     Common Stock appreciates at the annual rate shown (compounded annually)
     from the date of grant until the expiration of the option term.  These
     amounts are calculated pursuant to applicable requirements of the
     Commission and do not represent a forecast of the future appreciation of
     VCA Common Stock.

(2)  The option grants set forth on this chart which expire on March 4, 2005 and
     November 7, 2005 are exercisable in thirty-six (36) and twenty-four (24)
     equal monthly installments, respectively, commencing on the date of grant.
     The options may, at the discretion of the administrator of the stock option
     plan pursuant to which such options were granted, become immediately
     exercisable upon certain change of control events.  The options set forth
     above were each granted for a term of 10 years.

(3)  Options covering an aggregate of 854,750 shares were granted to eligible
     optionees during the fiscal year ended December 31, 1995.

(4)  The exercise price and tax withholding obligations related to exercise may
     be paid by delivery of already owned shares, subject to certain conditions.

AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR AND FISCAL YEAR END OPTION
VALUES

     The following table sets forth, for each of the Named Executive Officers,
certain information regarding the exercise of stock options during the fiscal
year ended December 31, 1995 and the value of unexercised options at December
31, 1995 based upon the closing price of the VCA Common Stock on the Nasdaq
National Market on December 29, 1995 ($16.875 per share).

                AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR
                       AND FISCAL YEAR-END OPTION VALUES
<TABLE>
<CAPTION>
 
                                                                NUMBER OF SECURITIES          VALUE OF ALL UNEXERCISED
                           SHARES ACQUIRED                       UNDERLYING UNEXERCISED         IN-THE-MONEY OPTIONS AT FISCAL
                                 ON            VALUE          OPTIONS AT FISCAL YEAR-END             YEAR END(1)
NAME                           EXERCISE       REALIZED         EXERCISABLE/UNEXERCISABLE       EXERCISABLE/UNEXERCISABLE
- -----------------          ----------------   --------        --------------------------      --------------------------------
 
<S>                         <C>                  <C>           <C>                           <C>
Robert L. Antin                -0-               -0-                   165,750/274,584             $1,992,407/$1,448,193
Arthur J. Antin                -0-               -0-                   130,111/147,889                 1,669,647/840,128
Neil Tauber                    -0-               -0-                   117,027/127,639                 1,464,306/745,464
Tomas W. Fuller                -0-               -0-                   116,361/104,306                 1,480,689/615,042
</TABLE>

                                       68
<PAGE>
 
EMPLOYMENT AGREEMENTS


  On January 1, 1994, VCA entered into employment agreements with each of Robert
L. Antin, Arthur J. Antin, and Neil Tauber, which currently expire on December
31, 1998.  Pursuant to the terms of these agreements, during the fiscal year
ended December 31, 1996, Messrs. Robert L. Antin, Arthur J. Antin and Neil
Tauber will receive an annual base salary of $265,000, $189,000 and $162,000,
respectively.  This base salary is subject to annual upward adjustment at the
discretion of the VCA Board, with a mandatory annual increase by a percentage
amount at least equal to the cost of living increase.  In addition, the VCA
Board has determined that executive officers of VCA may earn bonuses during each
calendar year based upon management achieving performance goals established by
the Compensation Committee of the VCA Board on an annual basis.  VCA may
terminate each of the employment agreements for cause or upon mutual agreement.
In each of these employment agreements, events constituting "termination by the
employee for cause" include (i) the willful breach of any of the material
obligations of VCA to the employee under his employment agreement; (ii) the
relocation of the chief executive offices of VCA outside of Los Angeles County,
California; or (iii) in the case of employees who also serve as members of the
VCA Board, the failure of the employee to be reelected to, or the removal of the
employee from, the VCA Board.  Events constituting "termination by VCA for
cause" include (i) conviction of the employee of any felony involving the
embezzlement, theft or misappropriation of monies or other property or moral
turpitude, or the employee's commission of any fraud or embezzlement against VCA
or any of its subsidiaries; or (ii) the willful and continued neglect by the
employee of his duties under the employment agreement which continues for 60
days following receipt by the employee of written notice.  Both the employee and
VCA have the right immediately to terminate the employment agreement without
cause by delivery of written notice of the termination to the other.

  If employment is terminated due to death, the agreements provide that VCA will
pay the affected employee severance pay equal to two years' salary.  If
employment is terminated due to the disability of the employee, without cause or
if VCA's principal executive office is moved from Los Angeles, the affected
employee is entitled to severance pay in an amount equal to three years' base
salary.  If employment is terminated due to a change in control of VCA, the
affected employee is entitled to severance pay in an amount equal to the greater
of (a) three years' base salary and (b) the base salary such employee would have
received during the period between the date of such employee's termination and
the scheduled expiration date of his employment agreement.  If employment is
terminated due to the scheduled expiration of an employment agreement, the
affected employee is entitled to severance pay in an amount equal to one year's
base salary.  "Change of control" is defined in each of these agreements to
include (a) a consolidation or merger of VCA into another entity in which VCA is
not the continuing or surviving corporation or pursuant to which shares of VCA
Common Stock would be converted into cash, securities or other property, other
than a merger of VCA in which the VCA stockholders immediately prior to the
merger have the same proportionate ownership of common stock of the surviving
corporation immediately after the merger, (b) any sale, lease or other transfer
of all or a significant portion of the assets of VCA, (c) the approval by the
VCA stockholders of any plan or proposal for the liquidation or dissolution of
VCA, (d) the ownership by any person, who at the effective date of the
employment agreement owned less than 10% of the VCA Common Stock, of 20% or more
of the VCA Common Stock or (e) during any consecutive two year periods,
individuals who at the beginning of such period constitute the entire VCA Board
shall cease for any reason to constitute a majority thereof unless the election,
or the nomination for election by the VCA stockholders, of each new director was
approved by a vote of at least two-thirds of the directors then still in office
who were directors at the beginning of the period.

  In April 1992, VCA entered into an agreement with Tomas W. Fuller, Chief
Financial Officer, Vice President and Assistant Secretary of VCA, pursuant to
which it agreed that if Mr. Fuller's employment is terminated without cause (as
defined above), VCA will pay to Mr. Fuller severance pay equal to six months'
salary.

COMPLIANCE WITH SECTION 16(A) OF THE SECURITIES EXCHANGE ACT

  Section 16(a) of the Exchange Act requires VCA's executive officers, directors
and persons who own more than ten percent of a registered class of VCA's equity
securities to file reports of ownership and changes in ownership with the
Commission.  Executive officers, directors, and greater-than-ten percent
stockholders are required by the regulations of the Commission to furnish VCA
with copies of all Section 16(a) forms they file.  Based solely on its review of
the copies of such forms received by it, VCA believes that, during the year
ended December 31, 1995, all relevant Section 16(a) filing requirements were
complied with, except as follows:  Ms. Moore, an executive officer, filed one
report late relating to her position as an executive officer; Mr. Gillespie, a
director, filed one report late relating to his position as a director; Mr.
Fuller,

                                       69
<PAGE>
 
an executive officer, filed one report late for a transaction involving the sale
of 1,500 warrants and a transaction involving the grant of an option to purchase
40,000 shares of VCA Common Stock; Mr. Robert L. Antin, an executive officer and
director, filed one report late involving nine separate transactions relating to
the sale, in the aggregate, of 25,500 warrants and the grant of an option to
purchase 80,000 shares of VCA Common Stock and one report late involving three
separate transactions relating to the sale, in the aggregate, of 30,000
warrants.  VCA is aware of no other failures to file required forms.

STOCK PERFORMANCE GRAPH

                COMPARISON OF 50 MONTH CUMULATIVE TOTAL RETURN*
          AMONG VETERINARY CENTERS OF AMERICA, INC., THE NASDAQ STOCK
                  MARKET - US INDEX AND THE RUSSELL 2000 INDEX

                       [PERFORMANCE GRAPH APPEARS HERE]

*    $100 INVESTED ON 10/10/91 IN STOCK OR ON 09/30/91 IN INDEX -INCLUDING
     REINVESTMENT OF DIVIDENDS FISCAL YEAR ENDING DECEMBER 31.

<TABLE>
<CAPTION>
 
 
                                                   Cumulative Total Return
                                     ------------------------------------------------
<S>                              <C>    <C>     <C>     <C>     <C>     <C>     <C>
                                        10/91   12/91   12/92   12/93   12/94   12/95
 
Veterinary Ctrs. Amer. Inc.      VCAI     100      69     116     116     149     300
NASDAQ STOCK MARKET - US         INAS     100     112     130     150     146     207
RUSSELL 2000                     IR20     100     106     126     149     146     188
 
</TABLE>

                                       70
<PAGE>
 
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT OF VCA

   The following table sets forth certain information provided by VCA regarding
beneficial ownership of VCA Common Stock as of May 20, 1996 and as adjusted to
reflect the issuance of 3,272,993 shares of VCA Common Stock in connection with
the Merger by (i) each director and Named Executive Officer of VCA; (ii) each
person known to VCA to be the beneficial owner of more than 5% of the
outstanding VCA Common Stock, and (iii) all directors and executive officers of
VCA as a group. Except as may be indicated in the footnotes to the table, each
of such persons has the sole voting and investment power with respect to the
shares owned, subject to applicable community property laws. The address of each
person listed is in care of VCA, 3420 Ocean Park Boulevard, Suite 1000, Santa
Monica, California 90405, unless otherwise set forth below such person's name.

<TABLE>
<CAPTION>
                                                               PERCENT OF CLASS     PERCENT OF CLASS
                                                                    OWNED                OWNED
NAME AND ADDRESS                         NUMBER OF SHARES(1)    PRIOR TO MERGER      AFTER MERGER(2)
- ------------------------------         ---------------------  -------------------  ----------------
<S>                                      <C>                   <C>                 <C>
Savannah Investments Limited                      950,000             7.2%                5.7%
 Kirk House, 4th Floor                                               
 Grand Cayman                                                        
 British West Indies                                                 
The TCW Group, Inc.                               730,500             5.5%                4.4%
 865 South Figueroa Street                                           
 Los Angeles, California 90017                                       
Robert L. Antin (3)                               854,563             6.4%                5.0%
Arthur J. Antin (4)                               339,398             2.5%                2.0%
Neil Tauber (5)                                   191,472             1.4%                1.1%
Tomas W. Fuller (6)                               120,390               *                   *
John B. Chickering, Jr. (7)                        13,333               *                   *
Richard Gillespie, M.D. (8)                        20,000               *                   *
John A. Heil                                           --              --                  --
All of VCA's executive officers and             1,541,156            11.1%                8.8%
 directors as a group (8 persons)
  (3)(4)(5)(6)(7)(8)(9)
- ------------------------------------
</TABLE>

* Less than one percent.

(1) Under Rule 13d-3 of the Exchange Act, certain shares may be deemed to be
    beneficially owned by more than one person (if, for example, persons share
    the power to vote or the power to dispose of the shares).  In addition,
    shares are deemed to be beneficially owned by a person if the person has the
    right to acquire the shares (for example upon exercise of an option) within
    60 days of the date as of which the information is provided.  In computing
    the percentage ownership of any person, the amount of shares outstanding is
    deemed to include the amount of shares beneficially owned by such person
    (and only such person) by reason of these acquisition rights.  As a result,
    the percentage of outstanding shares of any person as shown in this table
    does not necessarily reflect the person's actual ownership or voting power
    with respect to the number of shares of VCA Common Stock actually
    outstanding at May 20, 1996.

(2) Assumes the issuance of 3,272,993 shares of VCA Common Stock in the Merger
    in exchange for 8,632,520 shares of Pet Practice Common Stock, including
    8,800 shares of Pet Practice Common Stock underlying options which were
    exercisable on, or which will become exercisable within, 60 days of May 20,
    1996.

(3) Includes (i) 101,866 shares held by Mr. Robert Antin's minor children and
    (ii) 248,805 shares of VCA Common Stock reserved for issuance upon exercise
    of stock options which are or will become exercisable on or prior to July
    19, 1996.

                                       71
<PAGE>
 
(4) Includes (i) 50,000 shares which Mr. Arthur J. Antin holds as custodian for
    Mr. Robert L. Antin's minor children under the California Uniform Gifts to
    Minor's Act, (ii) 43,666 shares held by Mr. Arthur J. Antin's minor
    children; and (iii) 175,139 shares of VCA Common Stock reserved for issuance
    upon exercise of stock options which are or will become exercisable on or
    prior to July 19, 1996.

(5) Includes 156,472 shares of VCA Common Stock reserved for issuance upon
    exercise of stock options which are or will become exercisable on or prior
    to July 19, 1996.

(6) Consists of 120,390 shares of VCA Common Stock reserved for issuance upon
    exercise of stock options which are or will become exercisable on or prior
    to July 19, 1996.

(7) Consists of 13,333 shares of VCA Common Stock reserved for issuance upon
    exercise of stock options which are or will become exercisable on or prior
    to July 19, 1996.

(8) Includes (i) 5,000 shares of VCA Common Stock underlying warrants, and (ii)
    10,000 shares of VCA Common Stock reserved for issuance upon exercise of
    stock options which are or will become exercisable on or prior to July 19,
    1996.

(9) Includes, with respect to other executive officers, 2,000 shares of VCA
    Common Stock reserved for issuance upon exercise of stock options which are
    or will become exercisable on or prior to July 19, 1996.

          MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                           AND RESULTS OF OPERATIONS

GENERAL

     Founded in 1986, VCA is a leading companion animal health care company
operating in the markets for veterinary care, veterinary diagnostic laboratories
and premium pet food.  VCA made its first animal hospital acquisition in
December 1986, when it acquired West Los Angeles Animal Hospital, one of the
largest privately-owned teaching animal hospitals in the United States.  Between
1987 and 1992, VCA's operations were directed primarily at establishing a
corporate infrastructure and building a network of animal hospitals in selected
regional markets.  During this period, VCA grew with the acquisition of 17
additional animal hospitals and one veterinary diagnostic laboratory.

     In 1993, VCA implemented its current business strategy and began to expand
the scope of its operations in order to realize its goals of integrating the
markets for veterinary care, veterinary diagnostic laboratories and premium pet
food.  The integration of these three markets is the foundation of VCA's
business strategy to leverage its access to its primary customers, veterinarians
and pet owners.  From January 1, 1993 through December 31, 1995, VCA acquired
and integrated into its operations 36 animal hospitals.  Also in 1993, VCA
entered into a joint venture called Vet's Choice, with Heinz Pet Products, an
affiliate of H.J. Heinz Company to develop, manufacture and market a full-line
of premium pet food.  In March 1994, VCA expanded its veterinary diagnostic
laboratory operations by acquiring a 70 percent interest in Professional Animal
Laboratory ("PAL").  In January 1995, VCA acquired an additional veterinary
diagnostic laboratory, Cenvet, Inc. ("Cenvet"), which it then contributed in
March 1995 for a 51 percent interest in a joint venture, Vet Research
Laboratories, LLC ("Vet Research"), which combined the operations of Cenvet with
that of a full-service veterinary laboratory known as Vet  Research, Inc.
("VRI").  In 1995, VCA further expanded its veterinary diagnostic laboratory
operations by acquiring three smaller, regional veterinary diagnostic
laboratories and by purchasing the remaining 30 percent interest in PAL and four
smaller laboratories.

RECENT DEVELOPMENTS

     For a discussion of recent developments see "Business of VCA--Recent
Developments."

ANTICIPATED EFFECTS OF ACQUISITIONS

     VCA is currently evaluating the operations of the businesses of Pet
Practice and Pets' Rx for purposes of developing a plan for the integration of
the businesses to be acquired with VCA's existing operations.  Although this
plan is not complete 

                                       72
<PAGE>
 
at the time of the mailing of this Joint Proxy Statement/Prospectus, it is
anticipated that a significant restructuring of the combined operations will be
required as a result of the mergers. As a consequence of this restructuring and
the consummation of the mergers, VCA anticipates incurring one-time
restructuring and related charges in the second and/or third quarters of 1996.
The magnitude of these charges has not been quantified at this time.

     The Pets' Rx acquisition is intended to be accounted for on a pooling of
interests basis.  Under the pooling rules, the historical financial results of
VCA will be restated to reflect the combination, following certain adjustments.
Pets' Rx incurred a loss in each of the three fiscal years ended December 31,
1995 and in the first quarter ended March 31, 1996.  Following the consummation
of the merger, the historical results of VCA will be restated to reflect the
historical losses of Pets' Rx.  In addition, Pets' Rx is expected to continue to
incur losses in the second quarter of 1996.  Further, under the pooling rules,
the costs incurred by VCA and Pets' Rx in consummating the merger will be
expensed during the second quarter.

     The Pet Practice Merger is intended to be accounted for as a purchase.
Under the purchase rules, the Merger is expected to result in a significant
increase in the goodwill and other intangibles recorded on VCA's balance sheet.
This increase in goodwill and other intangibles will be in addition to the
increase resulting from the combination with Pets' Rx, which also has
significant goodwill and other intangibles recorded on its balance sheet.  As a
result, VCA expects that its amortization expense will significantly increase
over historical levels.

     The combined effect of the restructuring and other charges discussed above,
the pooling treatment in the Pets' Rx acquisition and the increased amortization
expense will have an adverse effect on the results of operations of VCA in each
of the second and third quarters of 1996.  Further, the effect of the increased
amortization expense is expected to temper reported earnings of VCA in the
fourth quarter and subsequent periods.

BASIS OF REPORTING

     VCA reports its operations in three business lines--Animal Hospital,
Laboratory and Premium Pet Food.  Animal Hospital operations include the
operations of VCA's animal hospitals.  Laboratory operations  include the
operations of VCA Lab (merged into PAL in March 1994), PAL (acquired in March
1994), Cenvet (from the date acquired, January 1, 1995 through the formation of
Vet Research  in March 1995), Vet Research and five smaller veterinary
laboratories since the date of acquisition.  VCA acquired the remaining 30
percent interest in PAL from its minority interest partner effective July 1,
1995.  VCA currently owns a 51 percent interest in Vet Research.  Premium Pet
Food includes the operations of the Vet's Choice joint venture of which VCA owns
a 50.5 percent interest.  During 1993, Vet's Choice was primarily engaged in
developing and testing the formulas for its first product line, Select Balance,
and building a marketing infrastructure in anticipation of commencing
distribution in 1994.  Vet's Choice began to generate revenue in March 1994 with
the launch of Select Balance.  In 1995, Vet's Choice began selling its second
product line, Select Care.  VCA's operating results include the results of
operations of the joint ventures on a consolidated basis.

     VCA's animal hospitals use VCA's veterinary diagnostic laboratory services
and purchase and resell the pet food products of Vet's Choice.  Revenue and the
corresponding expense from intercompany sales totaling $1,727,000, $759,000,
$344,000 in 1995, 1994, 1993, respectively, and $278,000 and $733,000 in the
three months ended March 31, 1995 and 1996, respectively, have been eliminated
from VCA's operating results.

                                      73
<PAGE>
 
RESULTS OF OPERATIONS

Three months ended March 31, 1996 compared to three months ended March 31, 1995.

Revenues

     The following table summarizes VCA's revenues for each of the three month
periods ended March 31:
<TABLE>
<CAPTION>
 
                            1996            1995
                        ------------     -----------
<S>                     <C>              <C>
 
Animal Hospital          $17,831,000     $ 9,150,000
Laboratory                12,056,000       5,817,000
Premium Pet Food           1,850,000         541,000
Intercompany Sales          (733,000)       (278,000)
                         -----------     ----------- 
                         $31,004,000     $15,230,000
                         ===========     =========== 
</TABLE>

          Revenues for the Animal Hospital operations increased 94.9% from 1995
to 1996.  This growth was primarily the result of growth in the number of
facilities owned and operated by VCA.  The results for 1996 include the results
of 20 veterinary hospitals acquired from April 1, 1995 to December 31, 1995, and
the results, from the date of acquisition, for an additional seven veterinary
hospitals acquired during the first quarter of 1996.  The increase in revenues
resulting from changes in volume or prices at existing facilities was
approximately 9.1%.

          Revenues of the Laboratory operations increased 107.3% from 1995 to
1996 due to the inclusion of a full quarter of Vet Research operations and the
acquisition of six other veterinary diagnostic laboratories since March 31,
1995.

          Vet's Choice began generating revenues in March 1994 when it commenced
commercial distribution of Select Balance through VCA's network of owned animal
hospitals.  Distribution was expanded nationally to independent veterinary
hospitals in selected regional markets beginning in the second quarter of 1994.
In April 1995, Vet's Choice commenced distributing its second product line,
Select Care, a complete line of therapeutic diets.

Gross Profit

          Gross profit for each of the three month periods ended March 31, is
comprised of the following: 
<TABLE>
<CAPTION>
 
                          1996          1995
                       ----------     ---------
<S>                    <C>            <C>
 
Animal Hospital        $2,441,000    $1,488,000
Laboratory              4,670,000     1,747,000
Premium Pet Food          690,000       186,000
                       ----------    ---------- 
                       $7,801,000    $3,421,000
                       ==========    ========== 
</TABLE>

          Gross profit of the Animal Hospital operations represents the
contribution from the hospital operations and is comprised of revenues less all
costs of services and products at the hospitals, including salaries of
veterinarians, technicians and all other hospital-based personnel, facilities
rent and occupancy costs and medical supply costs and costs of goods sold
associated with the retail sales of pet food and pet supplies.  Animal Hospital
gross profit increased 64.0% from 1995 to 1996, representing 16.3% and 13.7% of
Animal Hospital revenues in 1995 and 1996 respectively.  The decrease in gross
profit as a percentage of revenues from 1995 to 1996 was primarily attributable
to increased supply costs.

          Gross profit of the Laboratory operations is comprised of revenues
less all direct costs of services at the laboratory, including salaries of
veterinarians, technicians and other non-administrative laboratory-based
personnel, facilities rent and occupancy costs and supply costs.  As a
percentage of revenues, laboratory gross profit was 30.0% and 38.7% of revenues
in 

                                      74
<PAGE>
 
1995 and 1996, respectively. The increase in gross profit as a percentage of
revenue from 1995 to 1996 was primarily attributable to the inclusion of a full
quarter of Vet Research operations in 1996.

          Gross profit of Premium Pet Food is comprised of revenues less cost of
goods sold, including warehousing, freight and distribution costs.  Gross profit
as a percentage of revenues in 1995 and 1996 was 34.4% and 37.2%, respectively.

          The Laboratory and Premium Pet Food operations are expected to
continue to carry gross profit margins that are higher than the Animal Hospital
operations.  Consequently, historical gross profit margins for VCA as a whole
may not be indicative of those to be expected in the future.

Selling, General and Administrative Expenses

          VCA Corporate selling, general and administrative expense consists of
administrative expense at VCA's headquarters, including the salaries of
corporate officers and other personnel, accounting, legal and other professional
expense and rent and occupancy.

          Selling, general and administrative expense for each of the three
month periods ended March 31, is comprised of the following:
<TABLE>
<CAPTION>
 
                          1996          1995
                       ----------    ----------
<S>                    <C>           <C>
 
VCA Corporate          $1,279,000    $  827,000
Laboratory                915,000       500,000
Premium Pet Food        1,120,000       935,000
                       ----------    ---------- 
                       $3,314,000    $2,262,000
                       ==========    ========== 
</TABLE>

          VCA Corporate and Laboratory selling, general and administrative
expense, as a percentage of Animal Hospital and Laboratory revenues, was 8.9%
and 7.3% in 1995 and 1996, respectively.  The decrease from 1995 to 1996 was
primarily attributable to spreading the expenses over a larger revenue base.

          Premium Pet Food selling, general and administrative expense as a
percentage of Premium Pet Food revenues was 172.8% and 60.5% in 1995 and 1996,
respectively.  The decrease as a percentage of revenue was primarily
attributable to spreading the expenses over a larger revenue base.

Depreciation and Amortization

          Depreciation and amortization expense primarily relates to the
depreciation of capital assets and the amortization of excess cost over the fair
value of net assets acquired (goodwill) and certain other intangibles.
Depreciation and amortization expense increased from $548,000 in 1995 to
$1,034,000 in 1996. VCA's policy is to amortize goodwill over the expected
period to be benefited, not exceeding forty years.  The increase in depreciation
and amortization expense is primarily due to the acquisition of hospitals and
laboratories.

Restructuring Charge

          The operations of Cenvet (acquired January 1, 1995) were merged into
Vet Research Inc.'s operations to form Vet Research Laboratories.  The combined
operations were restructured to eliminate duplicate operating and overhead
costs.  In connection with the restructuring, VCA recorded a charge of
$1,086,000 in the first quarter of 1995 to accrue the estimated costs associated
with the restructuring, consisting primarily of lease termination and severance
costs.

                                      75
<PAGE>
 
Year ended December 31, 1996 compared to year ended December 31, 1995.

          The following table sets forth, for the periods indicated, the
percentage of certain items in relation to revenues.
<TABLE>
<CAPTION>
 
 
                                                      Percentage of Revenues
                                                 For the Years Ended December 31,
                                                 --------------------------------
                                                  1995          1994       1993      
                                                 ------        -----       -----    
<S>                                              <C>           <C>         <C>      
Revenues..................................        100.0%       100.0%      100.0%   
Direct costs..............................         73.3         75.9        80.3    
                                                  -----        -----       -----
Gross profit..............................         26.7         24.1        19.7    
Selling, general and administrative.......         11.8         16.4        15.2    
Depreciation and amortization.............          3.5          3.5         3.8    
Restructuring charge......................          1.2           --          --    
Writedown of assets.......................           --           --         9.1    
                                                  -----        -----       -----
Operating income (loss)...................         10.2          4.2        (8.4)   
Interest income...........................          0.8          0.9         1.7    
Interest expense..........................          2.6          3.3         3.4    
                                                  -----        -----       -----
Income (loss) before minority interest,                                             
income taxes and cumulative effect of                                               
accounting change.........................          8.4          1.8       (10.1)   
Minority interest in income (loss)                                                  
of subsidiaries...........................          3.2         (1.3)       (1.3)   
                                                  -----        -----       -----
Income (loss) before income taxes and                                               
cumulative effect of accounting change.....         5.2          3.1        (8.8)   
Provision (benefit) for income taxes......          2.4          1.7        (0.6)   
                                                  -----        -----       -----
Income (loss) before cumulative effect                                              
of accounting change......................          2.8          1.4        (8.2)   
Cumulative effect of accounting change....           --           --         0.9    
                                                  -----        -----       -----
Net income (loss).........................          2.8%         1.4%       (7.3)%  
                                                  =====        =====       =====
</TABLE> 

Revenues

     Revenues in 1993 were derived primarily from VCA's Animal Hospital
operations.  Laboratory revenues increased significantly with the acquisition of
PAL in March 1994 and Cenvet in January 1995 and the subsequent formation of the
Vet Research joint venture in March 1995.  Also in March 1994, Premium Pet Food
began to generate revenues from the sale of Vet's Choice's first product line,
Select Balance.

     Animal Hospital operations represented approximately 54.8%, 74.1% and 95.2%
of total Company revenues in 1995, 1994 and 1993, respectively.  Laboratory
operations represented 40.1%, 23.6% and 4.8% of total Company revenues in 1995,
1994 and 1993, respectively. Premium Pet Food operations represented 5.1% and
2.3% of total Company revenues in 1995 and 1994, respectively. VCA anticipates
that Animal Hospital revenues as a percentage of total revenues will continue to
decline in future periods as a result of the expansion of VCA's Laboratory
operations in 1994 and 1995 and the anticipated growth in sales of Select
Balance and Select Care.

 
       The following table summarizes VCA's revenues for each of the three years
in the period ended December 31, 1995:

                                      76
<PAGE>
 
<TABLE> 
<CAPTION>  
                                     1995           1994           1993 
                                  -----------    -----------    -----------
     <S>                          <C>            <C>            <C> 
     Animal Hospital              $51,437,000    $31,846,000    $24,423,000
     Laboratory                    37,606,000     10,150,000      1,234,000
     Premium Pet Food               4,756,000        996,000             --
     Intercompany Sales            (1,727,000)      (759,000)      (344,000)
                                  -----------    -----------    ----------- 
                                  $92,072,000    $42,233,000    $25,313,000 
                                  ===========    ===========    =========== 
</TABLE>                        

     Revenues of the Animal Hospital operations increased 30.4% from 1993 to
1994 and 61.5% from 1994 to 1995.  This growth was primarily the result of
growth in the number of facilities owned and operated by VCA.  The increase in
revenues resulting from changes in volume or prices at facilities operated
during all of 1994 and 1995 was 6.0%.

     Revenues of the laboratory operations increased from 1993 to 1994 due to
the acquisition of PAL in March 1994.  Revenues increased 270.5% in 1995 due
primarily to the acquisition of Cenvet and to the formation of the Vet Research
joint venture in March 1995.

     Prior to 1994, the Vet's Choice Premium Pet Food operations was primarily
engaged in developing and testing the formulas for its first product line and
building a marketing infrastructure in anticipation of commencing distribution
in 1994.  Vet's Choice began generating revenues in March 1994 when it commenced
commercial distribution of Select Balance through VCA's network of animal
hospitals in March 1994.  Distribution was expanded nationally to independent
veterinary hospitals in selected regional markets beginning in the second
quarter of 1994.  Vet's Choice revenue increased further in 1995 with the
introduction of Select Care in the beginning of 1995.

Gross Profit

     The following table summarizes VCA's gross profit for each of the three
years in the period ended December 31, 1995:
<TABLE>
<CAPTION>
 
                           1995          1994          1993
                        -----------   -----------   ----------
<S>                     <C>           <C>           <C>
 
  Animal Hospital       $ 9,381,000   $ 6,252,000   $4,946,000
  Laboratory             13,629,000     3,577,000       42,000
  Premium Pet Food        1,551,000       349,000           --
                        -----------   -----------   ----------
                        $24,561,000   $10,178,000   $4,988,000
                        ===========   ===========   ==========
</TABLE>

     Animal Hospital gross profit represents the contribution from the Animal
Hospital operations and is comprised of revenues less all costs of services and
products at the animal hospitals, including salaries of veterinarians,
technicians and all other hospital-based personnel, facilities rent and
occupancy costs and medical supply costs. Animal Hospital gross profit increased
from $4,946,000 in 1993 to $6,252,000 in 1994 and to $9,381,000 in 1995,
increases of $1,306,000 or 26.4% and $3,129,000 or 50.0%, respectively. As a
percentage of Animal Hospital revenues, gross profit decreased from 20.3% in
1993 to 19.6% in 1994 and 18.2% in 1995. The decrease in gross profit
contributed by Animal Hospitals as a percentage of Animal Hospital revenues from
1993 to 1994 and to 1995 was attributable primarily to the lower gross profit
margins at the newly acquired facilities and, additionally in 1995, to the
effect of a promotional campaign designed to expand the customer base.

     Laboratory gross profit is comprised of revenues less all direct costs of
services at the veterinary diagnostic laboratories, including salaries of
veterinarians, technicians and other non-administrative laboratory-based
personnel, facilities rent and occupancy costs and supply costs.  Laboratory
gross profit increased from $42,000 in 1993 to $3,577,000 in 1994 and to
$13,629,000 in 1995, an increase of $3,535,000 and $10,052,000, respectively.
As a percentage of Laboratory revenues, gross profit contributed by Laboratory
operations increased from 3.4% in 1993  to 35.2% in 1994 and to 36.2% in 1995.
The increase in the gross profit contributed by Laboratory operations as a
percentage of revenues in 1994 over 1993 was attributable to the acquisition of
PAL in March 1994 and the positive effects of combining the operations of VCA
Lab into the PAL operations and, for 1995, the acquisition of Cenvet and the
formation of Vet Research in January and March 1995, respectively.

                                      77
<PAGE>
 
     Premium Pet Food gross profit is comprised of revenues less cost of goods
sold, including freight and distribution costs.  Premium Pet Food gross profit
totaled $349,000 in 1994 and $1,551,000 in 1995.  As a percentage of revenues,
gross profit was 35.0% in 1994 and 32.6% in 1995.  The decrease in gross profit
as a percent of revenue was attributable to the release of Select Care in 1995,
which has lower gross profit margins than Select Balance.  Gross profit also
decreased in 1995 due to increased sales to distributors which have lower gross
profit margins than sales to veterinary hospitals, which were VCA's primary
source of sales in 1994.

     Laboratory and Premium Pet Food are expected to continue to realize gross
profit margins that are higher than that of the Animal Hospital line of
business.  Consequently, as these businesses represent an increasing percentage
of VCA's revenues, historical gross profit margins for VCA as a whole may not be
indicative of those to be expected in the future.

Selling, General and Administrative Expenses

     The following table sets forth VCA's selling, general and administrative
expense for each of the three years in the period ended December 31, 1995:
<TABLE>
<CAPTION>
 
                           1995          1994         1993
                        -----------   ----------   ----------
<S>                     <C>           <C>          <C>
 
  VCA Corporate         $ 3,826,000   $2,762,000   $2,248,000
  Laboratory              2,921,000      737,000           --
  Premium Pet Food        4,086,000    3,428,000    1,614,000
                        -----------   ----------   ----------
                        $10,833,000   $6,927,000   $3,862,000
                        ===========   ==========   ==========
</TABLE>

     VCA Corporate selling, general and administrative expense consists of
administrative expense at VCA's headquarters, including the salaries of
corporate officers and other personnel, accounting, legal and other
professional expense, and rent and occupancy costs.  VCA Corporate selling,
general and administrative expense increased from  $2,248,000 in 1993 to
$2,762,000 in 1994, and to $3,826,000 in 1995, increases of $514,000 or 22.9%,
and $1,064,000 or 38.5% respectively.  As a percentage of revenues, VCA
Corporate general and administrative expense decreased from 9.2% in 1993 to 8.7%
in 1994 and 7.4% in 1995.  The decreases from 1993 to 1995 are primarily
attributable to spreading the expenses over a larger revenue base.

     Laboratory selling, general and administrative expense consists primarily
of sales and administrative personnel and selling, marketing and promotional
expense.  Laboratory selling, general and administrative expense increased to
$2,921,000 for the year ended December 31, 1995 from $737,000 for the comparable
period in 1994, an increase of $2,184,000.  As a percentage of Laboratory
revenues, Laboratory selling, general and administrative expense increased to
7.8% for the  year ended December 31, 1995 from 7.3% for the comparable period
in 1994.  The increase in selling, general and administrative expense is
primarily attributable to the addition of Cenvet in January 1995 and the
formation of Vet Research in March 1995.

     Premium Pet Food selling, general and administrative expense consists
primarily of sales and administrative personnel and selling, marketing and
promotional expense.  Premium Pet Food general and administrative expense
increased from $3,428,000 in 1994 to $4,086,000 in 1995, an increase of $658,000
or 19.2%.  The increases from 1994 to 1995 were primarily attributable to
additional sales and administrative personnel and increases in marketing and
promotional expenses associated with the launch of Select Balance in March 1994
and the launch of Select Care in April 1995.  The general and administrative
expense in 1993 included $709,000 of general, administrative and start-up costs
and $905,000 of research and product development costs associated with the
development of Select Balance.

Depreciation and Amortization

     Depreciation and amortization expense primarily relates to the depreciation
of capital assets and the amortization of excess cost over the fair value of net
assets acquired (goodwill) and certain other intangibles.  Depreciation and
amortization expense increased from $956,000 in 1993 to $1,455,000 in 1994 and
to $3,291,000 in 1995, representing 3.8%, 3.5% and 3.5% of revenue in 1993, 1994
and 1995, respectively.  VCA's policy is to amortize goodwill over the expected
period to be benefited, not exceeding forty years.  The increase in depreciation
and amortization expense is primarily due to the acquisition of animal hospitals
and veterinary diagnostic laboratories.

                                      78
<PAGE>
 
Restructuring Charge

     The operations of Cenvet were merged into VRI's operations to form Vet
Research in March 1995.  The combined operations were restructured to eliminate
duplicate operating and overhead costs.  The restructuring included the
consolidation of facilities, staff reductions and the consolidation of ancillary
operations.  In connection with the restructuring, VCA recorded a charge of
$1,086,000 in the first quarter of 1995 to accrue the estimated costs associated
with the restructuring, consisting primarily of lease termination and severance
costs.

Writedown of Assets

     During 1993, VCA charged $2,310,000 to operations related to a writedown of
goodwill and certain intangible assets at three of VCA's facilities.  The three
facilities that were written down in 1993 will collectively have a net loss in
1996 of approximately $100,000.  VCA's goal in 1996 and 1997 is to minimize the
facilities' cash flow requirements and ultimately bring the facilities to a
breakeven status.  Management of VCA believes that VCA's strategy of building a
network of animal hospitals is served by continuing to operate these animal
hospitals even though the facilities themselves may not generate profits.

Operating Income

     Operating income increased from a loss of $2,140,000 in 1993 to income of
$1,796,000  in  1994 and to $9,351,000 in 1995, an increase of $3,936,000 in
1994 and $7,555,000 in 1995.  The increases primarily reflect higher operating
income at most of VCA's animal hospitals and veterinary diagnostic laboratories,
increased pet food sales and an increase in the number of animal hospitals and
veterinary diagnostic laboratories owned and operated by VCA. As a percentage of
revenues, operating income increased from a loss of 8.4% in 1993 to income of
4.2% in 1994 and to 10.2% in 1995.

     The operating loss in 1993 resulted from a $2,310,000 writedown of goodwill
and certain other intangible assets at three of VCA's facilities (see Notes 2
and 13 of Notes to Consolidated Financial Statements).  Operating income in 1995
includes the restructuring charge of $1,086,000 (see Note 14 of Notes to
Consolidated Financial Statements).  Operating income (loss) in 1993, 1994 and
1995 also includes the operating losses of Vet's Choice amounting to $1,614,000,
$3,094,000 and $2,573,000, respectively.  Excluding these items, operating
income would have increased from $1,784,000 in 1993 to $4,890,000 in 1994 and to
$13,010,000 in 1995, an increase of $3,106,000 and $8,120,000 in 1994 and 1995,
respectively.  As a percentage of revenue, operating income would have been 7.0%
in 1993, 11.6% in 1994 and 14.6% in 1995.

Interest Income

     Interest income decreased from $448,000 in 1993 to $366,000 in 1994 and
increased to $729,000 in 1995, a decrease of $82,000 or 18.3% and an increase of
$363,000 or 99.2%, respectively.  These changes are primarily due to changes in
VCA's average daily cash balances.  As a percentage of revenues, interest income
decreased from 1.7% in 1993 to 0.9% in 1994 and to 0.8% in 1995.

Interest Expense

     Interest expense increased from $873,000 in 1993 to $1,382,000 in 1994 and
$2,368,000 in 1995, increases of $509,000 or 58.3% and $986,000 or 71.3%,
respectively.  These increases are primarily due to increases in VCA's
outstanding indebtedness incurred for acquisitions.  As a percentage of
revenues, interest expense decreased from 3.4% in 1993 to 3.3% in 1994 and 2.6%
in 1995.

Income Taxes

     Income taxes were $2,238,000, $731,000 and ($152,000) in 1995, 1994 and
1993, respectively.  A reconciliation of the provision for income taxes for 1994
and 1995 to the amount computed at the Federal statutory rate is included in
Note 11 of Notes to Consolidated Financial Statements.  VCA's effective income
tax rate for 1995 was higher than the statutory rate and VCA expects that its
effective income tax rate may be higher than the statutory rate in the future
primarily due to the nondeductibility for income tax purposes of the
amortization of goodwill at certain of VCA's facilities.  In addition, VCA's
effective tax rate was higher than the statutory rate for 1993 due to the
nondeductibility of the writedown of assets.
 
                                      79
<PAGE>
 
Minority Interest

     Minority interest in income (loss) of the consolidated subsidiaries was
$2,910,000, ($540,000) and ($334,000) in 1995, 1994 and 1993, respectively.  The
increase is primarily due to the earnings of the Vet Research joint venture and
the reduced losses of Vet's Choice.

LIQUIDITY AND CAPITAL RESOURCES

     VCA's operations require continued access to cash, primarily to fund
acquisitions, reduce long-term debt obligations and to fund property and
equipment additions.

     Cash provided by operations during the years ended December 31, 1995, 1994
and 1993 and the three months ended March 31, 1996 and 1995 was $4,056,000,
$1,472,000, $1,592,000, $1,332,000 and $41,000 respectively. VCA's operating and
the three months ended March 31, 1996 and 1995 cash flow was adversely impacted
by the Vet's Choice joint venture, which had a net cash outflow of $3,043,000,
$2,878,000, $133,000, $717,000 and $1,087,000 in the same periods. Excluding the
Vet's Choice operations, cash provided by operations in the years ended December
31, 1995, 1994 and 1993 and the three months ended March 31, 1996 and 1995 was
$7,099,000, $4,350,000, $1,725,000, $2,049,000 and $1,128,000 respectively.

     During 1995, 1994, 1993 and the three months ended March 31, 1996 in
connection with acquisitions, VCA used cash in the amounts of $9,107,000
(acquisition of 25 hospitals, six veterinary diagnostic laboratories and the
remaining 30 percent interest in PAL), $5,948,000 (acquisition of five animal
hospitals and one veterinary diagnostic laboratory), $1,021,000 (acquisition
of six animal hospitals) and $9,875,000 (acquisition of seven animal hospitals 
and one veterinary diagnostic laboratory). Additionally, in 1995, 1994 and 1993,
VCA paid $250,000, $60,000 and $250,000 to acquire options to purchase the land
and building of five facilities. From April 1, 1996 through June 19, 1996, VCA
used $3,739,000 in connection with the acquisition of four animal hospitals and
two veterinary diagnostic laboratories.

     During these same periods VCA used $2,067,000, $1,052,000, $649,000 and
$948,000 to purchase additions to property and equipment and $4,971,000,
$2,494,000, $1,553,000 and $3,000,000 to reduce long-term obligations.

     In January 1995, Star-Kist Foods, Inc. through its Heinz Pet Products
division, purchased 1,159,420 shares of VCA Common Stock at $8.625 per share,
resulting in net proceeds to VCA of $9,980,000.  In November 1995, VCA completed
a secondary public offering of 2,965,026 shares of VCA Common Stock for net
proceeds of approximately $33,932,000.  Also in 1995, VCA received net proceeds
of $8,896,000 in connection with the exercise of 1,271,508 of its redeemable
warrants.  In connection with the formation of Vet Research in March 1995, VCA
issued warrants to purchase 363,636 shares of VCA Common Stock at $11.00 per
share (the "Vet Research warrants").  The warrants were purchased at $0.001 per
warrant and are exercisable until the fifth day following the last date upon
which VCA is permitted to close the purchase of the remaining 49% interest.
During 1995, VCA received $550,000 in connection with the exercise of 50,000 of
these warrants.  In the three months ended March 31, 1996, VCA received net 
proceeds of $5,330,000 in connection with the exercise of its warrants.

     In April 1996, VCA received net proceeds of $82,697,000 related to the
sale, in an offshore offering and concurrent private placement in the United
States, of $84,385,000 of 5.25% convertible subordinated debentures due in 2006.
The debentures, non-callable for three years, will be convertible into
approximately 2.5 million shares of VCA's common stock at a rate of $34.35 per
share.

     VCA has a $3.1 million unsecured line of credit.  The line of credit is at 
the bank prime rate and converts to a 36-month term loan at December 18, 1996,
is not removed. At March 31, 1996, VCA had $3.1 million available under the
line.
     
     Of its cash and equivalents on hand at December 31, 1995 and 1994, and
March 31, 1996 approximately $1,907,000, $2,982,000 and $1,134,000 respectively,
was restricted for use by Vet's Choice.  In 1996, Vet's Choice used $773,000 of
cash, primarily for increases in inventory and cost of sales.  During the year
ended December 31, 1995, Vet's Choice used $3,075,000 of cash to fund its
operating losses, the opening of three regional warehouses, marketing and
promotional expenses and an increase in its sales force. In 1994, Vet's Choice
used $2,839,000 of cash primarily for start-up and operational costs. As
provided for in the Joint Venture Agreement, VCA and Heinz Pet Products each
contributed $1.0 million to Vet's Choice in the third quarter of 1995. In May
1996, VCA and Heinz Pet Products contributed $1,010,000 and $990,000,
respectively to Vets' Choice. As sales of Premium Pet Food grow, Vet's Choice
will require additional cash to fund its working capital requirements (primarily
inventory and accounts receivable). Heinz Pet Products has agreed to lend Vet's
Choice up to $1.0 million at its bank prime rate plus one-half percent to assist
in meeting these working capital needs. Vet's Choice, however, may require
additional equity or debt financing. If Vet's Choice is unable to obtain debt
financing on favorable terms, it may be necessary for VCA to make additional
capital contributions to the venture.

                                      80
<PAGE>
 
     VCA, Pet Practice and Pets' Rx have each incurred substantial indebtedness
to finance the acquisition of their respective animal hospitals and (in the case
of VCA) veterinary diagnostic laboratories.  Giving effect to debt incurred in
acquisitions subsequent to March 31, 1996 through June 20, 1996 (excluding the
acquisition of Pets' Rx), VCA had at March 31, 1996, consolidated long-term
obligations (including current portion) of approximately $38.8 million.  Pet
Practice had at April 3, 1996 consolidated long-term obligations (including
current portion) of approximately $20.0 million. At March 31, 1996, Pets' Rx had
consolidated long-term obligations (including current portion) of $10.4 million.
In addition, on April 17, 1996, VCA issued subordinated debt in an aggregate
principal amount of $84.4 million (the "Debentures"). At December 31, 1995 and
March 31, 1996, VCA's ratio of long-term debt to total stockholders' equity was
36.3% and 36.4%, respectively. As of March 31, 1996, after giving effect to the
Transactions and the sale of the Debentures, the ratio of long-term debt to
total stockholders' equity will be 82.8%. VCA expects to incur additional
indebtedness in the future to continue its acquisition strategy.

     VCA has achieved its growth in the past, and anticipates it will continue
its growth in the future, through the acquisition of animal hospitals and
veterinary diagnostic laboratories for cash, stock and notes payable.  

     VCA intends to fund its future cash requirements primarily from cash on
hand, internally generated funds, the net proceeds from the exercise of its
warrants (which, if all were exercised, would generate approximately $9.9
million of cash), and borrowings on VCA's $3.1 million unsecured line of credit.
VCA believes these sources of funds will be sufficient to continue VCA's
operations and planned capital expenditures for at least the next 12 months.  A
significant portion of VCA's cash requirements is determined by the pace and
size of its acquisitions.  Consequently, VCA may need to obtain additional debt
or equity financings.  The type, timing and cash needs, the availability of
other financing sources and prevailing conditions in the financial markets.

                                      81
<PAGE>
 
NEW ACCOUNTING PRONOUNCEMENTS

     In March 1995, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 121 "Accounting for the Impairment of Long-
Lived Assets and for Long-Lived Assets to be Disposed Of."  The Statement
requires that long-lived assets and certain identifiable intangibles held and
used by an entity be reviewed for impairment whenever events or changes in
circumstances indicate that the carrying amount of an asset may not be
recoverable.  The Statement has been adopted by VCA effective January 1996.  VCA
does not expect implementation of this statement to have a material effect on
its financial position or its results of operations.

     In November 1995, the Financial Accounting Standards Board issued Statement
of Financial Accounting Standards No. 123 "Accounting for Stock-Based
Compensation."  The Statement recommends changes in accounting for employee
stock-based compensation plans, and requires certain disclosures with respect to
these plans.  The Statement's disclosures have been adopted by VCA effective
January 1, 1996.

SEASONALITY AND QUARTERLY FLUCTUATIONS

     Although not readily detectable because of the impact of acquisitions,
VCA's operations are somewhat seasonal.  In particular, revenues at VCA's animal
hospitals historically have been greater in the second and third quarters than
in the first and fourth quarters.  The demand for VCA's veterinary services are
significantly higher during warmer months because pets spend a greater amount of
time outdoors, where they are more likely to be injured and are more susceptible
to disease and parasites.  In addition, use of veterinary services may be
affected by levels of infestation of fleas, heartworms and ticks, the number of
daylight hours, as well as general economic conditions.  VCA expects its
veterinary laboratory operations to experience the same seasonality as its
animal hospitals.  A substantial portion of VCA's costs are fixed and do not
vary with the level of demand.  Consequently, net income for the second and
third quarters, at individual animal hospitals, generally has been higher than
that experienced in the first and fourth quarters.  However, should Premium Pet
Food sales increase and become a larger percentage of VCA's total revenue, VCA
expects these seasonality factors will be reduced.

     The following table sets forth revenues, gross profit and operating income
for each of the quarters since January 1, 1994:
<TABLE>
<CAPTION>
 
                                            QUARTER ENDED
                         ---------------------------------------------------- 
                         DECEMBER 31,    SEPTEMBER 30,   JUNE 30,   MARCH 31,
                            1995            1995          1995        1995
                         ------------    ------------    --------   ---------
<S>                      <C>             <C>             <C>        <C>  
1995
Revenues...........         $26,646         $26,917       $23,279     $15,230
Gross profit.......           6,798           7,632         6,710       3,421
Operating income...           2,850           2,781         3,109         611(1)

<CAPTION>  
                                         QUARTER ENDED
                        ------------------------------------------------------- 
                           DECEMBER 31,    SEPTEMBER 30,   JUNE 30,   MARCH 31,
                               1994            1994          1994        1994
                        ---------------    -------------  ---------   --------- 
<S>                     <C>                <C>            <C>         <C> 
1994
Revenues...........         $11,108         $11,842        $11,370     $ 7,913
Gross profit.......           2,878           3,282          2,642       1,376
Operating income...             538           1,330            220        (292)
</TABLE>
__________
(1)  Before a restructuring charge of $1,086,000.  Including the effect of this
     charge, the operating loss would have been $475,000.

INFLATION

    Historically, VCA's operations have not been materially affected by
inflation.  However, if Premium Pet Food sales increase and become a larger
percentage of VCA's total revenue, VCA expects inflation to have a minimal
impact on its 

                                      82
<PAGE>
 
operations in the event that raw material prices and other market conditions
change. VCA intends to pass increased costs on to its customers through price
increases, although VCA may not be able to adjust its prices immediately. There
can be no assurance that VCA's operations will not be affected by inflation in
the future.

                                      83
<PAGE>
 
                            BUSINESS OF PET PRACTICE

GENERAL

     Pet Practice owns and operates veterinary care group practices. Pet
Practice is one of the largest and fastest growing providers of companion animal
veterinary care in the United States. Pet Practice typically establishes
comprehensive networks that include day clinics and 24-hour emergency/acute care
clinics. In certain markets, Pet Practice also provides pet boarding and
grooming services. Pet Practice believes it is currently one of the few
companies pursuing a national strategy of consolidating veterinary care group
practices in an effort to create comprehensive veterinary care networks. Pet
Practice currently operates 84 veterinary clinics in 11 states. Of those 84
clinics, 54 operate in three established networks, 18 operate in one network in
the integration stage and 12 operate in two networks still in the development
stage. All of Pet Practice's services are provided on a fee-for-service basis
and customers generally remit payment at the time services are delivered.

     Pet Practice was founded in October 1993 through the acquisition of 15
clinics in Detroit, Michigan. Since that time, Pet Practice has refined its
operating model, put in place the existing management team and, as of April 3,
1996, completed the acquisition of 71 additional clinics and opened one newly
built clinic. The majority of Pet Practice's management team and the Pet
Practice Board have had extensive experience in the strategic development of
public companies in fragmented service industries, including the development and
implementation of acquisition and integration strategies. In addition, members
of Pet Practice's management team have had substantial experience in marketing
and brand name development.

THE VETERINARY SERVICES INDUSTRY

     Veterinary care in the U.S. is provided by veterinarians, generally
assisted by veterinary technicians. Veterinarians are graduates of four-year
accredited veterinary schools and, in most states, become licensed to practice
veterinary medicine upon passing national board examinations. They diagnose and
treat animal illnesses and injuries, perform surgeries, provide check-ups and
prescribe medication. Some veterinarians specialize by type of medicine, such as
orthopedics, dentistry, ophthalmology and dermatology, and many specialize by
type of animal.

     There are approximately 115 million dogs and cats in the United States with
over 50% of American households owning at least one dog or cat. According to
industry studies, Americans spent over $7 billion on veterinary services for
companion animals and $2 billion on boarding and grooming services in 1993 out
of approximately $20 billion spent on pet care. Industry studies also indicate
that over the past decade, the veterinary services market has grown at a
compound annual rate of approximately 9%.

                                      84
<PAGE>
 
STRATEGY

     Pet Practice's strategy is to develop extensive veterinary care delivery
networks in selected geographic markets. Pet Practice believes that by
developing a comprehensive care delivery network in a market, it can improve
convenience to the customer, generate significant cost advantages, deliver
higher quality care and increase its attractiveness to customers and employees.

     Each of Pet Practice's established networks includes a number of "spoke"
day clinics that serve as referral locations to one or more strategically
located 24 hour emergency/acute care "hub" clinics. In some markets, Pet
Practice also provides related services such as boarding and grooming. Pet
Practice's 24 hour "hub" clinics typically are larger than "spoke" clinics,
utilize sophisticated medical equipment and employ specialists as well as
primary care veterinarians. "Spoke" day clinics typically are open from 7 a.m.
to 7 p.m. and are designed to provide routine wellness and sick care services.
Pet Practice believes that its comprehensive networks provide significant
opportunities to cross-refer customers between "hub" and "spoke" clinics as well
as to Pet Practice's boarding and grooming programs.

     Pet Practice typically establishes a "pedestal" position in a market
through the acquisition of a quality-oriented veterinary group practice with a
significant market presence, an experienced team of veterinarians, a strong
local reputation and future growth potential. Pet Practice then densifies the
region around the pedestal through complementary acquisitions of practices
sharing many of the qualities of the pedestal.

     Once Pet Practice has established a network of sufficient size in a
particular geographic market, it seeks to grow internally in that market. Pet
Practice promotes internal growth through (i) implementing sales and marketing
programs designed to attract new customers, (ii) creating a consumer recognized
brand name image for its veterinary services, (iii) expanding services to
existing customers, (iv) enhancing convenience to customers by offering seven-
day, extended and 24-hour service, (v) increasing productivity of veterinarians
through improved support by technicians, and by freeing them from certain
administrative tasks, (vi) enhancing the medical sophistication of services
through the addition of specialists, and (vii) selective start-ups of new
veterinary clinics. By establishing substantial networks and marketing
aggressively, Pet Practice seeks to become the most convenient and most
recognized provider of veterinary services in each of its markets.

PATIENT SERVICES

     Pet Practice provides a full range of veterinary and ancillary services
through six networks in 11 states, which encompass 84 clinics. The following
table illustrates the locations where Pet Practice is providing services:

<TABLE>
<CAPTION>
 
                                                                        Number                     
                                                                          of
Network Location                                                       Clinics    Network Status 
- ----------------                                                       -------    --------------
<S>                                                                    <C>        <C>
Metropolitan Detroit (Michigan, Northern Ohio).................          24        Established
Metropolitan Indianapolis (Indiana, Southern Ohio).............          10        Established
Metropolitan Chicago (Illinois, Northern Indiana)..............          20        Established
Florida........................................................          18      Integration Stage
Mid-Atlantic (Delaware, Maryland, West Virginia, New Jersey,              9      Development Stage
   Eastern Ohio)...............................................
Massachusetts..................................................           3      Development Stage
                                                                         --
Total..........................................................          84
                                                                         ==
</TABLE>

        Veterinarians are the principal provider of veterinary services, often
assisted by technicians. Pet Practice seeks to optimize the balance between
veterinarians and technicians in the performance of veterinary services.
Veterinary specialists are utilized in each network on an internal and external
referral basis.

        Pet Practice provides a broad range of services including wellness care,
puppy and kitten starter services encompassing spaying or neutering, vaccination
series and exams, and adult pet well care for routine health care and parasite
prevention. Sick care is Pet Practice's primary service and ranges from single
visits to complicated treatment regimens and surgeries, sometimes involving
veterinary specialists. Emergency 24 hour care at selected facilities is another
of Pet Practice's important services,

                                      85
<PAGE>
 
often involving intensive care, complex orthopedic and other procedures. Many of
Pet Practice's clinics also provide important ancillary services, particularly
boarding and grooming.

        Considerable seasonality of demand for veterinary services exists in the
northern half of the United States, where a majority of Pet Practice's
facilities are located.  Pet Practice has significantly higher revenues during
warmer months because pets spend more time outdoors, where they are more likely
to be injured and are susceptible to diseases and parasites, which are more
prevalent during that time of the year.  In the future, to the extent that Pet
Practice develops more southern networks and installs programs to diminish the
effects of seasonality in the northern states, Pet Practice believes that
seasonality of demand will have less of an impact on revenues.

NETWORK DEVELOPMENT

        To date, Pet Practice is developing networks in markets where it
believes there are attractive veterinary service demographics and has targeted
those markets based on concentration of pet ownership, population density and
number of veterinarians. Based on these demographics, Pet Practice's initial
network development has focused on the Upper Midwest, the Mid-Atlantic region
and Florida. However, as Pet Practice becomes larger, it may pursue selectively
the acquisition of large regional pedestal group practices throughout the United
States.

        As Pet Practice completes acquisitions in a target market it begins the
process of integrating them into comprehensive pet health care delivery networks
of "hub and spoke" clinics. The initial pedestal acquisition in a target market
generally provides one or more major clinics that can be transformed into
network "hub" clinics, while densification acquisitions generally provide
"spoke" clinics. Efforts are made to improve services and business performance
through such initial activities as modifying hours of service, changing the mix
of services, providing customer service training and improving facilities and
equipment. Attention also is given to personnel matters including introduction
of Pet Practice's benefit programs, Pet Practice corporate culture and
productivity enhancements such as balancing veterinarian/technician ratios and
payroll as a function of seasonality.

        Pet Practice's established networks have "hub" clinics and "spoke"
clinics, and sometimes ancillary services such as boarding and grooming.
Following is a summary of the types of services provided by clinics in
established networks.

      .   "Hub" Clinics.  "Hub" clinics are strategically located throughout
          a region and are open 24-hours per day year round. These clinics are
          typically larger than "spoke" clinics and offer a full range of
          services including wellness, sick animal care, surgery, specialties
          such as orthopedics, dentistry, and oncology, emergency care, and in
          some instances boarding and grooming.  Accordingly, each "hub" clinic
          also serves as a "center of excellence" on clinical matters.  Cross-
          referrals and consultations among the clinics are encouraged.  The
          "hub" clinic generally offers convenience and services greater in
          scope than the individual veterinarian practitioner can offer.

      .   "Spoke" Clinics. Four or more "spoke" day clinics typically surround
          the "hub" clinic and are generally located within 15 miles of the
          "hub". "Spokes" are approximately one-half the size of "hubs" and are
          open typically from 7 a.m. to 7 p.m. "Spokes" provide routine wellness
          and sick care and refer special emergency and after-hours cases to the
          "hub" clinics. In some instances, "spoke" clinics also offer boarding
          and grooming.

      .   Ancillary Services. Each network may be further enhanced by ancillary
          services such as kennels (of which Pet Practice currently operates
          one) and grooming. In a pet services network, kennels, which provide
          boarding of pets for short or extended stays, enhance Pet Practice's
          overall services in concert with the clinics. In addition, kennels and
          certain clinics offer grooming services, including bathing, hair
          clipping and nail clipping. Some clinics in the network are unable to
          provide boarding and grooming due to local ordinances or space
          limitations. Other clinics offer limited service in cages without the
          benefits of exercise room or luxury services. For more comprehensive
          services, the clinics will be able to refer to the network kennels
          (which may be located at a clinic site) as these are developed. These
          ancillary services, in turn, are expected to increase the loyalty of
          network service users through continuum of care.

                                      86
<PAGE>
 
MARKETING

        Marketing is an important method of attracting customers through various
advertising and sales promotion programs and maintaining their loyalty through
Pet Practice's customer service culture.

        Advertising and Sales Promotions

        Marketing and advertising programs for the majority of independent
veterinary practices are generally unsophisticated. Independent veterinary
practices have traditionally relied on location, tenure, word-of-mouth and
limited advertising (e.g. Yellow Pages) as the primary means of attracting new
customers. While Pet Practice will also depend on these techniques to develop
and maintain its customer base, management intends to use more sophisticated
marketing and advertising to attract new customers and maximize service to
existing customers. Therefore, considerable investment has been made in brand
name, logo and signage development.

        A focus of Pet Practice's advertising is women between the ages of 25
and 54, who tend to be the predominant customers for pet care services. Pet
Practice targets two types of customers: (i) the relationship customer who
visits a veterinary clinic for all veterinary care one or two times per year and
(ii) the emergency customer who visits a veterinary clinic (particularly a 24-
hour "hub" clinic) because a pet is suddenly ill or injured.

        Pet Practice utilizes television advertising to attract new customers,
increase 24-hour emergency service awareness and to build its brand name
recognition within a metropolitan community. Television advertising has been
shown to be effective in creating brand name awareness and in building image.
Pet Practice's television advertising reinforces Pet Practice's image as a
provider of convenient, friendly and caring, high-quality and comprehensive
veterinary services.

        Radio advertising focuses the potential customer's attention on
specific, important, seasonal care issues (e.g. heartworm prevention in dogs).
Such advertisements remind listeners to check the Yellow Pages for the nearest
Pet Practice location. Furthermore, the Yellow Pages are generally effective as
a means of attracting emergency customers.

        For customer convenience, Pet Practice seeks high-traffic locations with
attractive signage for its clinics. Pet Practice has invested heavily in highly
visible free standing signage with a common clinic sign and logo which
reinforces its brand name image. This same sign and logo are reinforced through
in-clinic signage and print and television advertising. Each city with multiple
practice/clinic locations benefits from the exposure potential customers gain by
driving past Pet Practice's other clinic locations.

        Because most customers choose a veterinarian located within five miles
of their homes, geographically targeted direct mail programs can be effective in
building market share. Additionally, promotional coupons are occasionally used
to encourage return visits for regular veterinary care and increase trial use
among those who have not used Pet Practice's services. Reminder cards are mailed
to existing customers recommending preventive or routine care. Boarding and
grooming services and related wellness services (such as vaccinations) in a
convenient choice of settings within the network may further bond relationships
with the customer.

        In each network, Pet Practice also establishes relationships with pet
referral sources, such as breeders, retailers and humane societies.

        Customer Service Culture

        While Pet Practice's marketing programs seek to attract new customers
through consumer awareness, its customer service culture focuses on customer
satisfaction and retention.  Employees undergo formal customer service training
to learn the key elements of assuring customer satisfaction and retention.
Company management and employees have jointly developed and monitored a number
of customer service standards, policies and programs relating to customer
relations and efficient delivery of service.

                                       87
 
<PAGE>
 
        Pet Practice surveys customers on a regular basis to determine
satisfaction and evaluate their visits to Pet Practice's clinics. These surveys
are used to adapt continually Pet Practice's services to satisfy its customers'
desire for convenient, compassionate and informative veterinary care.

CLINICAL LEADERSHIP

        Pet Practice's corporate culture mandates giving the highest priority to
assuring state-of-the-art veterinary medical practices, successful outcomes and
clinical learning opportunities.  Pet Practice encourages clinical learning
through continuing education, internal forums, vendor supported events and
participation in industry professional societies and meetings.

        The position of Chief Veterinary Officer ("CVO") was established to
provide Pet Practice with a formal advocate for clinical excellence who not only
acts as an administrator for this function but who also serves as a clearing
house for the expertise that comes with each practice acquired by Pet Practice.
The CVO develops relationships with prominent veterinary specialists and
selected universities. Detailed interactions take place at the regional level
with Veterinary Medical Policy and Procedures Committees ("VMPPCs") established
for individual or contiguous areas with rotating representatives from local
clinics affiliated with Pet Practice. Area VMPPCs have been instituted in the
Detroit, Indianapolis, Chicago, Mid-Atlantic and Florida networks with
significant results in protocol development, technology and drug selection and
quality assurance.

        As part of many acquisitions, Pet Practice will have the opportunity to
hire various specialists, some board certified by the various colleges of the
American Veterinary Medical Association ("AVMA"). These highly skilled
veterinarians are expected to apply their expertise in each network, or
sometimes nationally in various networks. Management plans to emphasize raising
the acuity of services available in the overall mix provided by Pet Practice
with the aid of the specialists.

        Pet Practice management recognizes that pet health is controlled by pet
owners. Accordingly, Pet Practice develops educational materials and training
programs to support owner education, thus better enabling pet owners to make
informed health care choices for their pets. Community involvement by the
veterinarians as teachers of good health care practices is stressed. Media
advertising is designed generally to share valuable pet care information with
the public.

EMPLOYER OF CHOICE PROGRAMS

        Pet Practice's goal is to be considered the employer of choice in the
veterinary services industry. To achieve this goal, Pet Practice attempts to
create a positive culture and to provide human resource programs seldom
available at the individual veterinarian practitioner level.

        To achieve human resource program goals, Pet Practice offers an employee
benefit package not generally available to independent veterinarian
practitioners, job security in a changing veterinary care environment,
continuing education, management opportunities and an ability to relocate within
Pet Practice to different regions of the country. In addition, Pet Practice will
offer the benefit of national networking of veterinary professionals which,
through formal and informal sharing of resources, experience and expertise, will
help ensure that Pet Practice develops and employs some of the best veterinarian
practitioners in the veterinary services industry.

        Employee benefit programs provide health, disability and life insurance
and stock option and retirement plans to Pet Practice's employees. In addition,
Pet Practice offers many of its employees the opportunity to work either on a
full-time or part-time basis to accommodate the personal needs of its
practitioners.

MANAGEMENT INFORMATION SYSTEMS

        Management recognizes the importance of systems in driving productivity
and supporting Pet Practice's growth plans, and has made and continues to make
significant investments in both practice management and financial information
systems. Pet Practice is currently in the process of installing a common
practice management system in all of its clinics. This practice management
system will link point-of-sale terminals in each clinic with the headquarters
office, allowing Pet Practice to monitor key operating data on a daily basis,
including revenues and number of transactions by type of procedure, inventory
activity, clinic labor hours and customer demographic data. In addition, Pet
Practice plans to utilize its practice management system to

                                      88

<PAGE>
 
maintain certain of its patient medical records in electronic form, providing
efficient and effective access to key clinical patient data.

        As of June 5, 1996, Pet Practice has substantially completed the
installation of this common practice management system in 63 of its clinics.
Pet Practice intends to convert the remainder of its existing clinics and
clinics acquired through future acquisitions to this practice management system.

        To maximize administrative efficiency, Pet Practice has substantially
centralized its financial information systems.

COMPETITION

        The veterinary services industry is highly fragmented with approximately
16,000 individual small animal private practices competing for clients.  Larger
practices typically have two or more veterinarians in a group practice
configuration. This type of practice represents the preferred source of
acquisitions for Pet Practice. Several of these group practices are growing in
various metropolitan markets by start-ups or absorption of smaller, weaker
practices or the practices of retiring veterinarians.

        The local veterinarian's principal strengths tend to be strong client
relationships and personal service. However, many local veterinarians are
limited in their ability to practice state-of-the-art medicine due to lack of
time to keep pace with medical advances, limited capital for updating equipment
and facilities and recruiting, purchasing and marketing issues. Although
customers show increasing preference for convenient hours, only the largest
practices are able to schedule 24-hour or extended hour service. Accordingly,
Pet Practice as consolidator can gain competitive advantage by nurturing client
relationships and overcoming the above limitations of the smaller private
practices. By extending the hours of acquired practices, Pet Practice is
expected to provide early differentiation as networks are developed by Pet
Practice.

        Furthermore, Pet Practice believes that in recent years, newly graduated
veterinarians (approximately 2,050 in 1993) are less inclined to purchase or
start private practices due to growing capital requirements and a desire for a
less demanding lifestyle. Pet Practice believes that this trend will tend to
make it an attractive place for employment and experience gathering for newly
graduated veterinarians.

        Pet Practice is aware of at least three significant efforts to
consolidate veterinary services.  VCA, which operates approximately 64 clinics,
is pursuing a multidirectional strategy encompassing clinic ownership, practice
management, pet food development and laboratory services.  In addition, Pet
Practice is aware of at least two additional significant efforts to consolidate
veterinary services, but has experienced no direct competition as a result of
these consolidations.

        There are a growing number of retail chains selling pet foods and other
products from large, well-stocked "superstores" in important retail locations,
which are within Pet Practice's markets. Two of the leading superstore chains
compete with Pet Practice in that they have initiated veterinary clinics in
their stores.  One of the superstore chains has plans with a veterinarian
entrepreneur both to accelerate the installation of veterinary practices in its
stores and increase the medical acuity of its offered services. Pet Practice
believes that it can successfully compete with the leading superstore chains in
that the superstore chains do not offer, for example, the number of locations,
convenience and extensive range of services provided by Pet Practice's pet care
delivery networks. To date, other superstore chains have chosen not to initiate
such programs in an effort to align themselves with the independent veterinarian
practitioner community. Accordingly, Pet Practice does not view these superstore
chains as competitors and, in fact, has a co-operative referral relationship
with one such superstore chain. However, there can be no assurance that, in the
future, such superstore chains will not compete with Pet Practice.

LICENSING AND CERTIFICATION; PROFESSIONAL ASSOCIATIONS; REGULATION

        Veterinary care in the U.S. is provided by veterinarians, generally
assisted by veterinary technicians and assistants. Veterinarians are graduates
of four-year accredited veterinary schools and, in most states, become licensed
to practice veterinary medicine upon passing the National Board Examination
("NBE") and the Clinical Competency Test ("CCT") administered by the National
Board of the Examination Committee. State licensure of a veterinarian is
granted, in most instances, based on each state's criteria established by
reference to the national passing scores on the NBE and the CCT. Veterinary
technicians and assistants are regulated under most states' veterinary practice
acts. Standard testing and licensing throughout the U.S. is being

                                       89
<PAGE>
 
promoted by veterinary educators with some support by the American Veterinary
Medical Association ("AVMA"). The Veterinary Technician National Examination is
currently being offered in 40 states. Most veterinary clinics employ on-the-job
trained veterinary assistants.

        The AVMA is the largest organization in the veterinary services industry
with more than 56,000 veterinarian members (representing about 80% of the
veterinary profession), of whom more than 42,000 are engaged in clinical
practice. Of that number, approximately 30,000 are engaged exclusively in small
animal practice and about 5,000 are in mixed (both large animal and small
animal) practices focusing predominantly on small animals. The AVMA sets policy
and influences the veterinary profession's direction and coordinates activities
of subordinate bodies and specialty groups, but it does not act as a regulatory
body.

        The American Animal Hospital Association, with approximately 16,000
members, is an organization dedicated to enhancing the abilities of
veterinarians to provide quality medical care to companion animals, conduct
successful practices, maintain their facilities with high standards of
excellence and meet the public's needs for veterinary care.

        Each state has an association that varies in influence and size. Some of
these state associations are involved in regulatory activity in conjunction with
state veterinary boards, including investigations with regard to disciplinary
actions or facility inspections and/or licensing. In addition, there are
numerous local county and community organizations which usually serve as social
and educational organizations.

        The laws of some states prohibit veterinarians from splitting fees with
non-veterinarians and prohibit business corporations from providing veterinary
services through the direct employment of veterinarians. These laws and their
interpretations vary from state to state and are enforced by the courts and by
regulatory authorities with broad discretion. The states in which Pet Practice
operates which have laws prohibiting business corporations from providing
veterinary services through the direct employment of veterinarians are,
Delaware, Illinois, Indiana, Ohio, New Hampshire, New Jersey and West Virginia.
Pet Practice believes that its operations as currently conducted are in material
compliance with laws concerning corporate practice of veterinary medicine based
upon discussions with the appropriate governmental regulatory agency in each of
the states in which it operates.

TRADEMARKS

        Pet Practice owns a number of registered trademarks and has filed
applications to register additional trademarks and service marks with the United
States Patent and Trademark Office, including "The Pet Practice" and related
logos. Pet Practice believes Pet Practice trademarks and logos will be important
components in its merchandising and marketing strategy and that it will have all
service and trademark rights necessary to conduct business under the Pet
Practice name.

EMPLOYEES

        At April 1, 1996, Pet Practice had approximately 1,125 employees. Of
these, approximately 10 are corporate management, 190 are veterinarians, 875 are
other clinic personnel including veterinary technicians, receptionists,
veterinary assistants and groomers, 20 are field management and 30 are
administrative and clerical. None of Pet Practice's employees is represented by
a labor union and Pet Practice is not aware of any current activity to organize
any of its employees. Management considers relations between Pet Practice and
its employees to be good.

INSURANCE

        Pet Practice believes that it maintains the types and amounts of
insurance customary in the veterinary services industry, including coverage for
general liability, product liability, property damage, workers' compensation and
malpractice liability. In most states, pets are considered property and are
covered by the owner's homeowners' insurance. The liability of a veterinarian
practice for malpractice is generally limited to the cost of the pet or the
medical service performed. Pet Practice considers its insurance coverage to be
adequate both as to risks and amounts.

                                       90
<PAGE>
 
PROPERTIES

        Pet Practice's principal executive offices are located at 1018 West
Ninth Avenue, King of Prussia Pennsylvania.  In addition, Pet Practice leases
other office space and clinical facilities and owns 10 clinics, eight of which
are subject to mortgages, in various cities in the United States.  See Note 5 of
Notes to Pet Practice's Consolidated Financial Statements for information
concerning Pet Practice's mortgages and leases for its facilities. Pet Practice
does not anticipate that it will experience any difficulty in renewing any such
leases upon their expiration or obtaining different space on comparable terms if
such leases are not renewed. Pet Practice believes that these facilities are
well maintained and are of adequate size for present needs and planned expansion
in the near future. In general, Pet Practice intends to lease rather than
purchase facilities.

LEGAL PROCEEDINGS

        From time to time, Pet Practice is party to certain claims, suits and
complaints which arise in the ordinary course of business. Currently, there are
no such claims, suits or complaints which, in the opinion of management, would
have a material adverse effect on Pet Practice's financial position, liquidity
or results of operations.

EXECUTIVE OFFICERS OF PET PRACTICE

        Certain information with respect to the executive officers of Pet
Practice is set forth below:

<TABLE>
<CAPTION>
                                      Age at       
            Name                December 31, 1995   Position
            ----                ------------------  --------
<S>                            <C>                  <C>
Stephen F. Nagy.............          51            Chairman of the Board and Director
Peter J. Cohen..............          41            President, Chief Executive Officer and Director
Andrew S. Dworkis, D.V.M....          52            Senior Vice President -- Development, Chief
                                                    Veterinary Officer and Director
Warren D. Barratt...........          36            Vice President, Chief Financial Officer and
                                                    Secretary
Mark G. Hardin..............          45            Controller
Lori Stokes-Powers..........          40            Vice President -- Human Resources
Donna Yokich Schlitt........          33            Director of Marketing
Linda Larson................          48            Director of Information Systems
</TABLE>

        STEPHEN F. NAGY has been Chairman of the Board of Pet Practice since
March 1995 and a director of Pet Practice since October 1993. Mr. Nagy was Vice
President of Pet Practice from October 1993 to March 1995. He also acted as
President of Pet Practice from October 1993 to February 1994. Mr. Nagy has been
Executive Vice President of Foster Management Company, an investment advisor,
and general partner of investment funds managed by it since 1989.

        PETER J. COHEN has been President and a director of Pet Practice since
February 1994 and Chief Executive Officer of Pet Practice since March 1995. Mr.
Cohen was Chief Operating Officer of Pet Practice from February 1994 to March
1995. He previously served as Vice President of Sales at National Media
Corporation, a leading television direct response and marketing company, from
1992 until joining Pet Practice. He was Senior Vice President of Corporate
Operations at Nutri/Systems, Inc., a 1,700 clinic national weight loss
management company, from 1989 until 1992; Executive Vice President of Operations
and Marketing for The Circle K Corporation, a 4,600 location convenience store
chain, from 1986 to 1989; and held various management positions with The
Southland Corporation, the nation's largest convenience store operator, from
1977 to 1985.

        ANDREW S. DWORKIS, D.V.M. has been Senior Vice President--Development of
Pet Practice since February 1994 and Chief Veterinary Officer and a director of
Pet Practice since October 1993. Dr. Dworkis was the founder of Pet Practice's
initial acquisition, Professional Veterinary Hospitals of America, Inc. ("PVH"),
where he was a veterinary practitioner and served in various executive
capacities, including President and Chief Veterinary Officer, from that
company's inception in 1983 through February 1994. Prior to 1983, Dr. Dworkis
was in private practice in the Detroit area.

                                       91
<PAGE>
 
        WARREN D. BARRATT has been Vice President and Chief Financial Officer of
Pet Practice since June 1994. From 1982 until joining Pet Practice, Mr. Barratt
held various management positions with Price Waterhouse LLP, most recently as
Senior Manager.

        MARK G. HARDIN has been the Controller of Pet Practice since December
1994. He previously served as Controller of Everfast, Inc., a retailer and
wholesaler of decorative fabrics, from February 1991 to June 1994. From December
1986 until February 1991, Mr. Hardin served as Assistant Controller for McCrory
Stores, Inc., a variety retailer.

        LORI STOKES-POWERS has been Vice President--Human Resources of Pet
Practice since June 1994. She previously served as Employee Relations Manager
for the Dairy Division of Kraft General Foods, Inc. from 1989 until joining Pet
Practice.

        DONNA YOKICH SCHLITT has been National Director of Marketing for Pet
Practice since June 1994. From August 1990 until June 1994, she was the Director
of Marketing for PVH. She has 15 years of marketing experience, including her
positions as Associate Brand Manager at the Stroh Brewery Company from 1986
until joining Pet Practice, Advertising Coordinator for Merrill Lynch, Pierce,
Fenner and Smith Incorporated from 1985 to 1986, and in various marketing
capacities for two architectural firms from 1980 to 1985.

        LINDA LARSON has been Director of Information Systems of Pet Practice
since February 1995. Prior to joining Pet Practice, Ms. Larson was Director of
Information Systems at NovaCare, Inc.'s Medical Rehabilitation Hospital
Division. From 1987 to 1991, she was Manager of Information Systems at the
Specialty Hospital Group of National Medical Enterprises, Inc.

        No family relationship exists between any directors or executive
officers of Pet Practice.  Executive officers serve at the discretion of the Pet
Practice Board.

Compensation Information

        The following table sets forth information concerning the compensation
of Pet Practice's Chief Executive Officer and each of the other most highly
compensated executive officers of Pet Practice whose total annual salary and
bonus exceeded $100,000 for fiscal 1994 and 1995.

                           Summary Compensation Table
                           --------------------------
<TABLE>
<CAPTION>
                                                       Annual Compensation                              Long Term
                                                                                                      Compensation
                                       ---------------------------------------------------------------------------
                                                                                     Other 
Name and Principal                                                                  Annual               Awards 
Position                                  Year(3)    Salary($)      Bonus($)      Compensation($)       Options(#)  
- ---------------------------------------   -------   ------------   ----------     ---------------      ------------- 
<S>                                       <C>       <C>            <C>            <C>                   <C>
John H. Foster                            1995         17,500(2)         0                 0                    0
  Director (1)                            1994         30,000(2)         0                 0                    0

Peter J. Cohen                            1995        157,269       38,448               528(6)            10,000
  President (1)                           1994(4)     132,115       39,000(5)              0                    0

Andrew S. Dworkis, D.V.M.                 1995        115,492        5,291            15,128(7)             5,000
  Senior Vice President--Development      1994        110,000            0            15,160(8)                 0
  and Chief Veterinary Officer

Warren D. Barratt                         1995         89,544       17,860               346(6)             7,500
  Vice President and Chief Financial      1994(9)      45,500        6,951                 0                    0
  Officer
</TABLE>
_________________________________

(1)  Effective March 13, 1995, Mr. Foster relinquished his positions as Chairman
     and Chief Executive Officer and Stephen F. Nagy was appointed Chairman of
     the Board and Peter J. Cohen was appointed Chief Executive Officer of Pet
     Practice.  Mr. Foster is currently a director of Pet Practice.

                                       92
<PAGE>
 
(2)  Represents a management fee of $2,500 per month paid to Foster Management
     Company, of which Mr. Foster is the sole stockholder.  The agreement to pay
     a monthly management fee was terminated as of August 1995.

(3)  Pet Practice commenced operations on October 27, 1993.  As a result, no
     executive officer of Pet Practice had an annual salary and bonus in excess
     of $100,000 in 1993 and therefore, no information is set forth herein with
     respect to 1993.

(4)  Mr. Cohen's employment with Pet Practice commenced on February 1, 1994.

(5)  Includes $7,500 paid to Mr. Cohen in 1993 as a bonus with respect to the
     commencement of his employment with Pet Practice.

(6)  Consists of contributions made by Pet Practice to The Pet Practice, Inc.
     401(k) Retirement Plan (f/k/a the Professional Veterinary Hospitals of
     America, Inc. 401(k) Retirement Plan) (the "Retirement Plan") on behalf of
     such executive officer.  The dollar value of other perquisites and personal
     benefits was less than the lesser of $50,000 or 10% of the total annual
     salary and bonus for such named executive officer, and, accordingly, has
     been omitted.

(7)  Consists of a $15,000 allowance for automobile and other reimbursed
     expenses and a $63 contribution made by Pet Practice to its Retirement Plan
     on behalf of Dr. Dworkis.  The balance of such compensation relates to
     miscellaneous items.

(8)  Consists of a $15,000 allowance for automobile and other reimbursed
     expenses and a $95 contribution made by Pet Practice to its Retirement Plan
     on behalf of Dr. Dworkis.  The balance of such compensation relates to
     miscellaneous items.

(9)  Mr. Barratt's employment with Pet Practice commenced on June 2, 1994.

         The following table sets forth the grants of stock options to the
executive officers named in the Summary Compensation Table during the fiscal
year ended January 3, 1996.  The amounts shown for each of the named executive
officers as potential realizable values are based on arbitrarily assumed
annualized rates of stock price appreciation of five percent and ten percent
over the exercise price of the options during the full terms of the options,
which would result in stock prices of approximately $20.78 and $33.02,
respectively.  The amounts shown as potential realizable values for all
stockholders represent the corresponding increases in the market value of
8,492,100 outstanding shares of the Pet Practice Common Stock held by all
stockholders as of January 3, 1996, which would total approximately $176,465,838
and $280,409,142, respectively.  No gain to the optionees is possible without an
increase in stock price which will benefit all stockholders proportionately.
These potential realizable values are based solely on arbitrarily assumed rates
of appreciation required by applicable Commission regulations.  Actual gains, if
any, on option exercises and holdings of Pet Practice Common Stock are dependent
on the future performance of the Pet Practice Common Stock and overall market
conditions.  There can be no assurance that the potential realizable values
shown in this table will be achieved.

<TABLE>
<CAPTION>
                                                 OPTION GRANTS IN LAST FISCAL YEAR
 
                                                    INDIVIDUAL GRANTS
                             ------------------------------------------------------------
                                                                                           Potential Realizable Value at Assumed
                                             Percent of                                       Annual Rates of Stock Price
                                            Total Options                                      Appreciation for Option Term
                                Number of    Granted to     Exercise                       ----------------------------------------
                                Options      Employees      Price Per 
Name                            Granted      Fiscal Year     Share       Expiration Date         5%                      10%  
- ---------------------------   ----------   --------------  -----------  -----------------  -----------------    -------------------
<S>                             <C>          <C>              <C>            <C>             <C>                  <C>
All Stockholders' Stock         
 Appreciation                      N/A            N/A                N/A             N/A          $176,465,838         $280,409,142 
                                
John H. Foster...............            0               0           N/A             N/A                 N/A                  N/A
                                                                                                                                   
Peter J. Cohen...............       10,000            11.5%         $12.75        09/19/05              80,300              202,700 
</TABLE> 

                                       93
<PAGE>
 
<TABLE> 
<S>                                  <C>               <C>          <C>           <C>                   <C>                 <C> 
Andrew S. Dworkis, D.V.M.....        5,000             5.8%         $12.75        09/19/05              40,150              101,350
                                   
Warren D. Barratt............        7,500             6.8%         $12.75        09/19/05              60,244              152,025
</TABLE>

         The following table sets forth the number and value of options held by
the executive officers of Pet Practice named in the Summary Compensation Table.
During the fiscal year ended January 3, 1996, none of the executive officers
named in the Summary Compensation Table exercised any options to purchase Pet
Practice Common Stock.


                         FISCAL YEAR-END OPTION VALUES
<TABLE>
<CAPTION>
 
                                                                     Value of Unexercised
                                   Number of Unexercised                 In-The-Money
                               Options at January 3, 1996       Options at January 3, 1996(1)
                            --------------------------------   ---------------------------------
Name                             Exercisable/Unexercisable         Exercisable/Unexercisable
- ----                        --------------------------------   ---------------------------------
<S>                            <C>                             <C>                            
John H. Foster..............                N/A                                  N/A
Peter J. Cohen..............            0/10,000                                $0/0
Andrew S. Dworkis, D.V.M....             0/5,000                                $0/0
Warren D. Barratt...........             0/7,500                                $0/0
</TABLE>
__________________________


(1)  In-the-money options are those for which the fair market value of the
     underlying Pet Practice Common Stock exceeds the exercise price of the
     option.  The value of in-the-money options is determined in accordance with
     regulations of the Commission by subtracting the aggregate exercise price
     of the option from the aggregate year-end value of the underlying Pet
     Practice Common Stock.


Director Compensation

         Directors of Pet Practice do not receive fees for service as directors
but are reimbursed for out-of-pocket expenses.  During 1994 and 1995, Pet
Practice paid Foster Management Company (an investment advisor of which John H.
Foster, a director of Pet Practice, is the Chairman of the Board and sole
stockholder), an aggregate of $47,500 in management fees (at the rate of $2,500
per month) and approximately $48,000 as reimbursement of out-of-pocket expenses.
The agreement to pay a monthly management fee terminated upon completion of Pet
Practice's initial public offering.  In August 1995, Pet Practice paid Foster
Management Company a fee of $500,000 for its assistance in effectuating Pet
Practice's initial public offering.

Employment Arrangements

         Pet Practice has entered into an agreement, which is terminable at
will, with Peter J. Cohen. The agreement provides that Mr. Cohen will receive a
base salary of $150,000 per year with a possible bonus, at the discretion of the
Chairman of the Board of Pet Practice, of up to 30% of such base salary each
year. The agreement also sets forth other employee benefit arrangements.

         In connection with the acquisition by Pet Practice of PVH, Dr. Dworkis
entered into a five-year employment agreement. The agreement provides for Dr.
Dworkis to receive an annual base salary of $110,000, subject to merit increases
as determined by the Pet Practice Board, and, during the fourth and fifth years
of his employment, to earn bonuses, payable in cash and Pet Practice Common
Stock, on terms approved by the Pet Practice Board.  The agreement also provides
that in the event that Dr. Dworkis' employment with Pet Practice is terminated
other than voluntarily, by death or disability or for due cause (as defined in
the agreement), Pet Practice shall pay Dr. Dworkis 70% of his base salary for a
period of three years. In addition, Dr. Dworkis purchased 20,000 shares of Pet
Practice Common Stock at $.055 per share.  Such shares are subject to

                                       94

<PAGE>
 
repurchase by Pet Practice for $.055 per share in the event of the termination
of Dr. Dworkis' employment with Pet Practice prior to January 1998.

         In addition, Pet Practice has entered into agreements, which are
terminable at will, with each of Warren D. Barratt, Lori Stokes-Powers, Mark G.
Hardin, Donna Yokich Schlitt and Linda Larson which set forth, among other
things, the base salary, bonus, equity participation, and other employee benefit
arrangements for each of them.

Compensation Committee Interlocks and Insider Participation

         The members of the Compensation Committee of the Pet Practice Board for
fiscal 1995 were R. Bruce Mosbacher, John H. Foster, Stephen F. Nagy and Charles
Velge.  Mr. Foster, Chairman of the Board and Chief Executive Officer of Pet
Practice during fiscal 1995 and a director of Pet Practice, was also Chairman of
the Board, Chief Executive Officer, a director and a member of the Compensation
Committee of each of NovaCare, Inc. and Apogee, Inc. during fiscal 1995.  Mr.
Nagy, a director of Pet Practice and since March 1995, Chairman of the Board of
Pet Practice, was also a director of Hearing Health Services, Inc. (a company of
which Mr. Foster is Chairman of the Board and Chief Executive Officer) and
Chairman of the Board of Valley Forge Dental Associates, Inc. (a company of
which Mr. Foster is a director).

         As discussed below, Pet Practice has engaged in a variety of
transactions with a limited partnership of which John H. Foster and Stephen F.
Nagy are general partners of the general partner and Foster Management Company,
an investment advisor of which Mr. Foster is the Chairman of the Board and sole
stockholder and Mr. Nagy is an Executive Vice President.

         In connection with Pet Practice's initial capitalization, the Principal
Stockholder, an investment partnership operated by Foster Management Company (an
investment advisor of which John H. Foster is the Chairman of the Board and sole
stockholder), purchased 3,600,000 shares of Pet Practice Common Stock for
$198,000, and 8,000 shares of mandatory redeemable preferred stock ("Redeemable
Preferred Stock") for $800,000.  In August 1995, Pet Practice redeemed the
Redeemable Preferred Stock, which was mandatorily redeemable upon the completion
of Pet Practice's initial public offering, for an aggregate redemption price of
$800,000, plus $117,128.77 in accrued dividends.  John H. Foster and Stephen F.
Nagy are general partners of the general partner of the Principal Stockholder.

         In October 1993, Pet Practice entered into agreements with the
Principal Stockholder whereby the Principal Stockholder lent Pet Practice up to
$20,000,000 pursuant to 8% Promissory Notes the ("8% Promissory Notes") due
August 30, 1998. Pet Practice borrowed $12,391,000 from the Principal
Stockholder pursuant to the 8% Promissory Notes.  In addition, the Principal
Stockholder guaranteed certain loan obligations of Pet Practice.  In August
1995, Pet Practice repaid the principal amount of the 8% Promissory Notes
together with $1,618,265.54 in accrued interest from the net proceeds of Pet
Practice's initial public offering.  Finally, in August 1995, Pet Practice paid
off all outstanding loan obligations which were guaranteed by the Principal
Stockholder.

         During 1994 and 1995, Pet Practice paid Foster Management Company an
aggregate of $47,500 in management fees (at the rate of $2,500 per month) and
approximately $48,000 as reimbursement of out-of-pocket expenses.  The agreement
to pay a monthly management fee terminated upon completion of Pet Practice's
initial public offering.  In August 1995, Pet Practice paid Foster Management
Company a fee of $500,000 for its assistance in effectuating Pet Practice's
initial public offering.  Pet Practice believes that the terms of such
transactions with Foster Management Company are no less favorable to Pet
Practice than the terms Pet Practice could have obtained from non-affiliated
parties.  However, since such transactions were not the result of third-party
negotiations, there can be no assurance that Pet Practice could not have
obtained more favorable terms from a non-affiliated party.

Certain Transactions

         Pet Practice has engaged in a variety of transactions with the
Principal Stockholder, an investment partnership of which John H. Foster and
Stephen F. Nagy are general partners of the general partner, and Foster
Management Company, an investment advisor of which Mr. Foster is the Chairman of
the Board and sole stockholder and Mr. Nagy is the Executive Vice President.
See "Compensation Committee Interlocks and Insider Participation."

                                       95

<PAGE>
 
         Pet Practice sold to each of the directors and executive officers of
Pet Practice the following shares of Pet Practice Common Stock in the following
months for $.08 per share, which shares of Pet Practice Common Stock vest over a
five-year period contingent upon continued service: in February 1994, 120,000
shares of Pet Practice Common Stock to Peter J. Cohen, President, Chief
Executive Officer and a director of Pet Practice; in March 1994, 5,000 shares of
Pet Practice Common Stock each to R. Bruce Mosbacher, Foster Bam, Carlo Grosso,
James C. New and Charles Velge, directors of Pet Practice; and in June 1994,
10,000 shares of Pet Practice Common Stock to Warren D. Barratt, Vice President
and Chief Financial Officer of Pet Practice, and 5,000 shares of Pet Practice
Common Stock to Lori Stokes-Powers, Vice President--Human Resources of Pet
Practice.  In connection with the proposed Merger with VCA, the vesting
provisions with respect to 5,000 shares of Pet Practice Common Stock have been
waived for each of Messrs. Cohen, Mosbacher, Bam, Grosso, New and Velge, subject
to consummation of the Merger.

         Pet Practice has entered into stock purchase agreements with each of
its directors and executive officers (except John H. Foster and Stephen F. Nagy)
(the "Stock Purchase Agreements") pursuant to which such individuals purchased
their respective shares of Pet Practice Common Stock. The Stock Purchase
Agreements provide for restrictions on the sale of such shares and further
provide that Pet Practice has the option to repurchase any such shares which
have not become vested through the passage of time at $.08 per share upon the
termination, for any reason whatsoever, of such individual's directorship or
employment, as the case may be, with Pet Practice.  Except as provided in the
immediately preceding paragraph, such restrictions and repurchase rights shall
continue to be applicable on the same basis to the VCA Common Stock received by
such individuals in the Merger in exchange for such shares of Pet Practice
Common Stock. Pet Practice and each of Messrs. Bam, Barratt, Cohen, Grosso,
Mosbacher, New and Velge and Ms. Stokes-Powers agreed that, in the event of a
proposed sale of control of Pet Practice, each of such individuals will be
permitted, or may be required, to sell a number of those shares of Pet Practice
Common Stock covered by his or her respective Stock Purchase Agreement as shall
be proportionate to the number of shares of Pet Practice Common Stock that the
controlling stockholders shall sell of the shares owned by them, for the same
consideration per share and on the same terms and conditions received by such
controlling stockholders in such sale of control.

         Dr. Andrew S. Dworkis was a stockholder of PVH, which Pet Practice
acquired in October 1993.  In consideration for his stock in PVH, Pet Practice
paid Dr. Dworkis $483,500 in cash and a contingent, non-interest bearing note in
the principal amount of approximately $233,000, and agreed to pay Dr. Dworkis
certain additional cash payments if the value of PVH is validated as evidenced
by its achievement of certain financial and operational goals.  In June 1995,
Pet Practice renegotiated certain of such additional cash payments to eliminate
certain performance criteria in exchange for a non-interest bearing note in the
principal amount of approximately $311,000.  In connection with the acquisition
of PVH, Dr. Dworkis purchased 57,067 shares of Pet Practice Common Stock for
$.055 per share.

         Dr. Dworkis is a partner in a partnership which leases six veterinary
clinics to Pet Practice.  The lease agreements provide for annual base rental
rates currently ranging from $1,634 to $7,117 per month.  All of the leases are
"triple net" leases.  Four of the leases expire in October 2003 with, in each
case, an option to renew for five additional years.  One of the leases expires
in October 1998 with one five-year renewal option and one of the leases expires
in February 1997 with two one-year renewal options.  During the period from
October 27, 1993 to December 29, 1993, and the fiscal years ended December 28,
1994 and January 3, 1996, Pet Practice paid $44,800, $268,800 and $268,800,
respectively, to the partnership pursuant to the leases.

         In connection with the acquisition of PVH, Dr. Dworkis entered into a
five-year employment agreement with Pet Practice.  In addition, Dr. Dworkis
purchased 20,000 shares of Pet Practice Common Stock at $.055 per share.  Such
shares are subject to repurchase by Pet Practice for $.055 per share in the
event of the termination of Dr. Dworkis' employment with Pet Practice prior to
January 1998.  In connection with the proposed Merger with VCA, the vesting
provisions with respect to 5,000 of such shares of Pet Practice Common Stock
have been waived, subject to consummation of the Merger.  See "Employment
Arrangements."

         On August 9, 1994, Pet Practice executed a demand promissory note
payable to United States Trust Company of New York ("U.S. Trust") (the "First
U.S. Trust Note") in the principal amount of the lesser of the amount borrowed
or $7,000,000, with an interest rate equal to U.S. Trust's prime rate.  On
September 28, 1994, the First U.S. Trust Note was amended and restated and the
maximum principal amount thereof was increased from $7,000,000 to $8,000,000,
payable on demand together with interest thereon at U.S. Trust's prime rate.
Additionally, on December 5, 1994, Pet Practice executed a demand

                                      96
<PAGE>
 
promissory note payable to U.S. Trust (the "Second U.S. Trust Note") in the
principal amount of the lesser of the amount borrowed or $5,000,000, with an
interest rate equal to U.S. Trust's prime rate.

         On February 27, 1995, Pet Practice executed a demand promissory note
payable to PNC Bank, National Association ("PNC Bank") (the "PNC Note") in the
principal amount of the lesser of the amount borrowed or $5,000,000, with an
interest rate, at Pet Practice's option, equal to (a) the greater of (i) PNC
Bank's prime rate or (ii) the federal funds rate plus 0.5% or (b) the eurodollar
rate plus 2%. On July 6, 1995, the PNC Note was amended and restated and the
maximum principal amount thereof was increased from $5,000,000 to $6,000,000.

         The Principal Stockholder unconditionally guaranteed the payment of Pet
Practice's obligations to U.S. Trust and PNC Bank under all such notes, and
secured the guarantee to U.S. Trust by a pledge of cash deposits.  In August
1995, Pet Practice repaid the $13,000,000 aggregate principal amount outstanding
under the First U.S. Trust Note and the Second U.S. Trust Note, together with
accrued interest thereon in the aggregate amount of $154,611.11, from the net
proceeds of Pet Practice's initial public offering.  In August 1995, Pet
Practice repaid the $5,926,692 principal amount outstanding under the PNC Note,
together with accrued interest thereon of $46,822, from the net proceeds of Pet
Practice's initial public offering.

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT OF PET PRACTICE

         The stockholders (including any "group" as that term is used in Section
13(d)(3) of the Exchange Act) who, to the knowledge of the Pet Practice Board,
owned beneficially more than five percent of Pet Practice's one class of
outstanding voting securities as of April 1, 1996, each director and each
executive officer named in the Summary Compensation Table of Pet Practice and
all directors and officers of Pet Practice as a group, and their respective
share holdings as of such date (according to information furnished by them to
Pet Practice), are set forth in the following table.  Except as indicated in the
footnotes to the table, all of such shares are owned with sole voting and
investment power.  The address of each person listed is in care of Pet Practice,
1018 West Ninth Avenue, King of Prussia, Pennsylvania 19406, unless otherwise
set forth below such person's name.

<TABLE>
<CAPTION>
                                                                            PERCENT OF CLASS     PERCENT OF CLASS
                                                                             OWNED PRIOR TO        OWNED AFTER
      NAME AND ADDRESS                        NUMBER OF SHARES                  MERGER              MERGER(1)
- ------------------------------------------  -------------------------     --------------------  ----------------
<S>                                            <C>                         <C>                  <C>
Abbingdon Venture Partners                      3,600,000                        41.8%                8.6%
Limited Partnership-II(9)
      1018 West Ninth Avenue
      King of Prussia, Pennsylvania 19406
John H. Foster                                  3,614,000(2)                     41.9%                8.6%
      Foster Management Company
      1018 West Ninth Avenue
      King of Prussia, Pennsylvania 19406
Stephen F. Nagy                                 3,601,000(3)                     41.8%                8.6%
      Foster Management Company
      1018 West Ninth Avenue
      King of Prussia, Pennsylvania 19406
Weiss, Peck & Greer, L.L.C.                       581,500(4)                      6.7%                1.4%
      One New York Plaza
      New York, New York 10004
The Kaufmann Fund Inc.                            500,000(5)                      5.8%                1.2%
      140 E. 46th Street, 43rd Floor
      New York, New York 10017
Peter J. Cohen                                    120,000                         1.4%                 *
Andrew S. Dworkis, D.V.M.                          77,067                          *                   *
Foster Bam                                         54,500(6)                       *                   *
Warren D. Barratt                                  10,000                          *                   *
</TABLE> 

                                      97

<PAGE>
 
<TABLE> 
<CAPTION> 
                                                                            PERCENT OF CLASS     PERCENT OF CLASS
                                                                             OWNED PRIOR TO        OWNED AFTER
      NAME AND ADDRESS                        NUMBER OF SHARES                  MERGER              MERGER(1)
- -------------------------------------------  -------------------         --------------------   ----------------
<S>                                           <C>                           <C>                  <C>
Carlo Grosso                                        5,000                          *                     *
R. Bruce Mosbacher                                  5,000(7)                       *                     *
James C. New                                        5,000                          *                     *
Charles Velge                                       5,000                          *                     *
Directors and officers as a                     3,904,067(2)(3)(6)(7)              45.3%                9.3%
      group (14 persons)                                 (8)
 
 
- ----------------------------
</TABLE>

*  Less than one percent.

(1)  Assumes the issuance of 3,272,993 shares of VCA Common Stock in the Merger
     in exchange for 8,632,520 shares of Pet Practice Common Stock, including
     8,800 shares of Pet Practice Common Stock underlying options which were
     exercisable on, or which will become exercisable within, 60 days of April
     1, 1996.

(2)  Includes 3,600,000 shares of Pet Practice Common Stock owned by the
     Principal Stockholder, a limited partnership of which Mr. Foster is a
     general partner of the general partner.

(3)  Includes 3,600,000 shares of Pet Practice Common Stock owned by the
     Principal Stockholder, a limited partnership of which Mr. Nagy is a general
     partner of the general partner.

(4)  Information as to the holdings of Weiss, Peck & Greer, L.L.C. ("WPG") is as
     of December 31, 1995 and is based upon a report on Schedule 13G filed with
     the Commission.  Such report indicates that 581,500 shares were
     beneficially owned by WPG with shared voting power and shared dispositive
     power.

(5)  Information as to the holdings of The Kaufmann Fund Inc. (the "Kaufmann
     Fund") is as of December 31, 1995 and is based upon a report on Schedule
     13G filed with the Commission.  Such report indicates that 500,000 shares
     were beneficially owned by the Kaufmann Fund with sole voting power and
     sole dispositive power.

(6)  Includes 45,500 shares of Pet Practice Common Stock owned by Foster &
     Foster, an investment partnership of which Mr. Bam is the Managing Partner.

(7)  Represents shares of Pet Practice Common Stock owned by the Mosbacher/Ditz
     Living Trust, of which Mr. Mosbacher is the trustee and is a beneficiary.

(8)  Includes 2,500 shares of Pet Practice Common Stock presently issuable to
     executive officers of Pet Practice upon the exercise of stock options.

(9)  Investment decisions with respect to the shares of Pet Practice Common
     Stock owned by the Principal Stockholder are made by its general partner,
     Abbingdon-II Partners, a New York general partnership ("Abbingdon-II").
     The general partners of Abbingdon-II are John H. Foster, Stephen F. Nagy,
     trusts for the benefit of the children of Messrs. Foster and Nagy, and
     Caroline H. Fleming.

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
                     RESULTS OF OPERATIONS OF PET PRACTICE

OVERVIEW

       Pet Practice owns and operates veterinary care group practices. Pet
Practice is one of the largest and fastest growing providers of companion animal
veterinary care in the United States. Pet Practice typically establishes
comprehensive networks

                                       98
<PAGE>
 
that include day clinics and 24-hour emergency/acute care clinics. In certain
markets, Pet Practice also provides pet boarding and grooming services. Pet
Practice believes it is currently one of the few companies pursuing a national
strategy of consolidating veterinary care group practices in an effort to create
comprehensive veterinary care networks. Pet Practice currently operates 84
veterinary clinics in 11 states. All of Pet Practice's services are provided on
a fee-for-service basis and customers generally remit payment at the time
services are delivered.

Pet Practice believes that by developing comprehensive care delivery networks in
selected geographic markets, it can improve convenience to the customer,
generate significant cost advantages, deliver higher quality care and increase
its attractiveness to customers and employees. For instance, as a result of its
scale, Pet Practice can employ a full range of veterinary specialists, support
the operation of 24-hour emergency "hub" clinics and finance sophisticated
marketing programs including television, radio and print advertising designed to
build brand name awareness and educate customers. Pet Practice believes, based
on market studies conducted by independent consultants, that convenience and
brand name awareness are two of the most important factors affecting a
customer's choice of veterinarian. In addition, Pet Practice's larger size
relative to traditional providers of veterinary care enables it to leverage
corporate overhead, achieve economies of scale in purchasing and support the
development of management information systems. Finally, Pet Practice is able to
leverage labor costs, employing part-time and full-time practitioners and
offering a full complement of employee benefits.

Pet Practice has a short operating history and has grown rapidly through
acquisitions. Pet Practice was founded in October 1993 through the acquisition
of 15 clinics in Detroit, Michigan. From October 1993 through June 1994, Pet
Practice refined its operating model, put in place the existing management team
and began to put in place the infrastructure to execute its growth and
acquisition strategies. In July 1994, Pet Practice initiated its growth plan and
through April 3, 1996, completed the acquisition of 71 additional clinics and
opened one newly-built clinic. Of the additional acquired clinics, Pet Practice
added 25 during the fiscal quarter ended September 28, 1994, five during the
fiscal quarter ended December 28, 1994, 11 during the fiscal quarter ended March
29, 1995, five during the fiscal quarter ended September 27, 1995, 22 during the
fiscal quarter ended January 3, 1996 and three during the fiscal quarter ended
April 3, 1996. During the period April 4 to June 5, 1996, Pet Practice closed
two of its lower volume clinics, the impact of which is not material to Pet
Practice's results of operations. The following table sets forth the growth in
the number of clinics operated by Pet Practice since commencement of its
operations in October 1993 through June 5, 1996.

<TABLE>
<CAPTION>
                                                                                 Fiscal Quarter Ended
                                                               ---------------------------------------------------------
                                  October 27  
                                      to          Year Ended     March      June      September                           April 4 to
                                 December 29,    December 28,     29,        28,         27,        January 3,   April 3,  June 5, 
                                     1993            1994        1995       1995        1995           1996        1996     1996
                                 ------------    ------------- --------   -------   ------------   ----------   --------  ----------
<S>                             <C>            <C>             <C>        <C>       <C>            <C>          <C>        <C>
 Number of clinics at           
  beginning of period........              -             15          44        55             55           60         83        86 
 Number of clinics acquired                                                                                                   
  during period..............             15             30          11         -              5           22          3         - 
 Number of new clinics                                                                                                        
  opened during period.......              -              -           -         -              -            1          -         - 
 Number of clinics consolidated                                                                                               
  during period.                           -             (1)          -         -              -            -          -        (2) 
 Number of clinics at end of            ----           ----        ----      ----           ----         ----       ----        --
  period.....................             15             44          55        55             60           83         86        84
                                        ====           ====        ====      ====           ====         ====       ====        == 
</TABLE>

SEASONALITY

      Considerable seasonality of demand for veterinary services exists in the
northern half of the United States, where a majority of Pet Practice's current
clinics are located.  Pet Practice has significantly higher revenues during
warmer months because pets spend more time outdoors, where they are more likely
to be injured and are susceptible to diseases and parasites, which are more
prevalent during that time of year.  Demand for veterinary services is less
seasonal in the southern states.

                                      99
<PAGE>
 
      While Pet Practice's revenues are highly seasonal, with peak demand for
veterinary services occurring in the second and third quarters of Pet Practice's
fiscal year and significantly reduced demand in the first and fourth fiscal
quarters, a majority of Pet Practice's cost of revenues, including labor and
occupancy costs, are fixed or semi-fixed and, thus, are not generally subject to
significant seasonal variation.  As a result, gross profit both on an absolute
dollar basis and as a percentage of revenues is significantly higher in the
second and third fiscal quarters as compared to the first and fourth fiscal
quarters.

RESULTS OF OPERATIONS

      Pet Practice's fiscal year is a 52-53 week year which ends on the
Wednesday nearest to December 31.

      Cost of revenues includes clinic labor and labor-related costs, clinic
occupancy costs, clinic materials and supplies and clinic marketing costs.
Clinic marketing costs comprise substantially all of Pet Practice's marketing
costs and include costs of clinic-specific direct mail and localized media
marketing programs.  Pet Practice uses such marketing programs primarily to
attract new customers and maximize service to existing customers and, thus,
classifies the costs of these programs as a cost of revenues.

      General and administrative expenses include all costs related to corporate
and field management and administrative support operations, including labor and
labor-related costs, occupancy costs, professional fees (primarily legal and
accounting) and non-clinic related insurance.

      The following table sets forth, for the periods indicated, the relative
percentages which certain items in Pet Practice's Consolidated Statement of
Operations bear to net revenues:

<TABLE>
<CAPTION>
                                                Period from October 27,              Year Ended               Thirteen Weeks Ended
                                                1993 (commencement of        ---------------------------     ----------------------
                                                   operations) to            December 28,     January 3,     March 29,     April 3,
                                                   December 29, 1993             1994            1996          1995         1996
                                                -----------------------      ----------------------------    ----------------------
<S>                                            <C>                          <C>              <C>            <C>           <C>
 Net revenues...............................           100.0%                   100.0%         100.0%          100.0%       100.0%
 Cost of revenues...........................           105.0%                    92.2%          85.7%           93.6%        90.3%
                                                       -----                    -----          -----           -----        -----
 Gross profit...............................            (5.0%)                    7.8%          14.3%            6.4%         9.7%
 General and administrative expenses........            29.0%                    25.6%          14.3%           16.1%        11.1%
 Amortization of excess of cost over fair        
  value of net assets acquired and other         
  intangible assets.........................             3.2%                     2.7%           3.0%            3.3%         3.4%
                                                       -----                    -----          -----           -----        -----   
 Loss from operations.......................           (37.2%)                  (20.5%)         (3.0%)         (13.0%)       (4.8%)
                                                                                                          
 Interest expense...........................            15.2%                    10.5%           5.8%            9.1%         2.4%

 Interest income............................               -                        -           (1.2%)          (0.1%)       (0.7%)
                                                       -----                    -----          -----           -----         -----
 Loss before income taxes...................           (52.4%)                  (31.0%)         (7.6%)         (22.0%)       (6.5%)

 Provision for income taxes.................               -                      1.3%           0.2%           (0.3%)       (0.2%)
                                                       -----                    -----          -----           -----        -----   
 Net loss...................................           (52.4%)                  (32.3%)         (7.8%)         (22.3%)       (6.7%)
                                                        =====                   =====          =====            =====       =====
</TABLE>

RESULTS OF OPERATIONS FOR THE THIRTEEN WEEKS ENDED APRIL 3, 1996 COMPARED TO THE
THIRTEEN WEEKS ENDED MARCH 29, 1995

   Net revenues increased from $7,607 for the thirteen weeks ended March 29,
1995 to $13,404 for the thirteen weeks ended April 3, 1996, representing an
increase of $5,797, or 76%.  Of this increase approximately $1,144 was
attributable to the inclusion in the first fiscal quarter of 1996 of a full
quarter's results of operations of 11 clinics acquired during the first fiscal

                                      100
<PAGE>
 
quarter of 1995, approximately $4,074 was attributable to the acquisition of a
total of 31 additional clinics during the third and fourth fiscal quarters of
1995 and the first fiscal quarter of 1996, and approximately $579 was
attributable to internal growth of Pet Practice's clinics owned for all or a
part of the first fiscal quarter of 1995.

   Gross profit increased to $1,300 in the first fiscal quarter of 1996 from
$487 in the first fiscal quarter of 1995.  Gross profit as a percentage of net
revenues increased to 9.7% in the first fiscal quarter of 1996 from 6.4% in the
first fiscal quarter of 1995.  This increase was primarily attributable to
internal growth of Pet Practice's clinics owned for all or a part of the first
fiscal quarter of 1995, and the acquisition of clinics during the first, third
and fourth fiscal quarters of 1995 and the first fiscal quarter of 1996, with
relatively higher aggregate, average gross profit margins than the aggregate,
average gross profit margins of Pet Practice's clinics owned for all of the
first fiscal quarter of 1995.

   General and administrative expenses increased from $1,223 in the first fiscal
quarter of 1995 to $1,490 in the first fiscal quarter of 1996.  This increase in
costs relating to corporate and field management and administrative support
functions was primarily attributable to the rapid expansion of Pet Practice's
operations subsequent to the first fiscal quarter of 1995.  General and
administrative expenses as a percentage of net revenues decreased from 16.1% in
the first fiscal quarter of 1995 to 11.1% in the first fiscal quarter of 1996.
This decrease was primarily the result of the leveraging of general and
administrative costs over a significantly increased revenue base.

   Amortization of excess of cost over fair value of the net assets acquired and
other intangible assets increased to $460 for the first fiscal quarter of 1996
from $248 for the same period in 1995.  This increase was attributable to
inclusion of a full quarter of amortization of intangible assets relating to the
additional 31 clinics acquired by Pet Practice during the third and fourth
fiscal quarters of 1995 and the first fiscal quarter of 1996.

   Interest expense decreased to $321 for the thirteen weeks ended April 3, 1996
as compared to $697 for the thirteen weeks ended March 29, 1995.  This net
decrease was primarily due to the fact that Pet Practice repaid all of its
borrowings from banks and approximately $12,391 of indebtedness to related
parties outstanding during the first fiscal quarter of 1995 with a portion of
the net proceeds of its initial public offering consummated in August 1995.

   Interest income increased to $93 in the first fiscal quarter of 1996 as
compared to $6 in the first fiscal quarter of 1995.  This increase was primarily
attributable to interest income earned on the remaining net cash proceeds from
Pet Practice's August 1995 initial public offering.

RESULTS OF OPERATIONS FOR THE YEAR ENDED JANUARY 3, 1996 COMPARED TO THE YEAR
ENDED DECEMBER 28, 1994

   Net revenues increased from $15,111 for the year ended December 28, 1994 to
$40,571 for the year ended January 3, 1996, representing an increase of $25,460,
or 168%.  Of this increase approximately $13,625 was attributable to the
inclusion of a full year's results of operations for clinics acquired during
1994, approximately $8,753 was attributable to the acquisition of 38 clinics
during the year ended January 3, 1996 and approximately $3,082 was attributable
to internal growth of Pet Practice's clinics owned for all or a part of the
year.

   Gross profit increased to $5,795 for the year ended January 3, 1996 from
$1,175 for the year ended December 28, 1994.  Gross profit as a percentage of
net revenues increased to 14.3% for the year ended January 3, 1996 from 7.8% for
the year ended December 28, 1994.  This increase was primarily attributable to
internal revenue growth of Pet Practice's clinics owned for all or a part of the
year ended January 3, 1996 and the acquisition of clinics during the fourth
fiscal quarter of 1994 and the first three fiscal quarters of 1995 with
relatively higher aggregate gross profit margins than the aggregate gross profit
margins of Pet Practice's clinics owned for all or a part of the first nine
months of 1994.

   General and administrative expenses increased from $3,867 for the year ended
December 28, 1994 to $5,796 for the year ended January 3, 1996.  This increase
in costs relating to corporate and field management and administrative support
functions was primarily attributable to the rapid expansion of Pet Practice's
operations during 1995.  General and administrative expenses as a percentage of
net revenues decreased from 25.6% for the year ended December 28, 1994 to 14.3%
for the year ended January 3, 1996.  This decrease was primarily the result of
the leveraging of general and administrative costs over a significantly
increased revenue base.

                                       101
<PAGE>
 
   Amortization of excess of cost over fair value of net assets acquired and
other intangible assets increased to $1,229 for the year ended January 3, 1996
from $409 for the year ended December 28, 1994.  This increase was attributable
to the acquisition of clinics as outlined above.

   Interest expense increased to $2,336 for the year ended January 3, 1996 as
compared to $1,594 for the year ended December 28, 1994.  This increase was
primarily due to an increase in borrowings from banks under line of credit
agreements and indebtedness to related parties during the first half of the year
ended January 3, 1996 as compared to the same period in the prior year, and an
increase in the amount of outstanding indebtedness to sellers in connection with
acquisitions.  These increases were partially offset by the repayment of all of
Pet Practice's borrowings from banks under line of credit agreements and
approximately $12,391 of indebtedness to related parties with a portion of the
proceeds of its initial public offering consummated in August 1995.  See Notes 5
and 10 of Notes to Pet Practice's Consolidated Financial Statements.

   Interest income increased from approximately $7 for the year ended December
28, 1994 to approximately $475 for the year ended January 3, 1996.  This
increase was primarily attributable to interest income earned on the net cash
proceeds from Pet Practice's August 1995 initial public offering.

RESULTS OF OPERATIONS FOR THE YEAR ENDED DECEMBER 28, 1994 COMPARED TO THE
PERIOD OCTOBER 27, 1993 (COMMENCEMENT OF OPERATIONS) THROUGH DECEMBER 29, 1993

   Results of operations for these periods are generally not comparable because
the results of operations for the period October 27, 1993 through December 29,
1993 represent only approximately two months of operations.

   Net revenues increased from $1,201 for the period October 27, 1993 through
December 29, 1993 to $15,111 for the year ended December 28, 1994, representing
an increase of $13,910, or 1,158%.  Of this increase approximately $7,213 was
attributable to the inclusion for the year ended December 28, 1994 of a full
year's results of operations of the 15 clinics acquired during the period
October 27, 1993 through December 29, 1993, approximately $5,488 was
attributable to the acquisition of 30 additional clinics during the year ended
December 28, 1994 and approximately $1,209 was attributable to internal growth
of Pet Practice's clinics owned for all or a part of the year ended December 28,
1994.

   Gross profit increased to $1,175 for the year ended December 28, 1994 from a
loss of $60 for the period October 27, 1993 through December 29, 1993.  Gross
profit as a percentage of net revenues increased to 7.8% for the year ended
December 28, 1994 from a negative 5.0% for the period October 27, 1993 through
December 29, 1993.  This increase was primarily attributable to internal revenue
growth, the acquisition of clinics during 1994 with relatively higher aggregate,
average gross profit margins than the aggregate, average gross profit margins of
Pet Practice's clinics owned for all or a part of the period October 27, 1993
through December 29, 1993, and the negative impact of late fall/early winter
seasonality during the period October 27, 1993 through December 29, 1993.

   General and administrative expenses increased from $348 for the period
October 27, 1993 through December 29, 1993 to $3,867 for the year ended December
28, 1994.  This increase in costs relating to corporate and field management and
administrative support functions was primarily attributable to the rapid
expansion of Pet Practice's operations during 1994 and the inclusion of a full
year's results of operations in 1994.  General and administrative expenses as a
percentage of net revenues decreased from 29.0% in the period October 27, 1993
through December 29, 1993 to 25.6% for the year ended December 28, 1994.  This
decrease was primarily the result of the leveraging of the general and
administrative costs over a significantly increased revenue base.

   Amortization of excess of cost over fair value of net assets acquired and
other intangible assets increased to $409 for the year ended December 28, 1994
from $38 for the period October 27, 1993 through December 29, 1993.  This
increase was attributable to inclusion of a full year of amortization of
intangible assets relating to the acquisition made in 1993 and amortization of
intangible assets relating to the additional 30 clinics acquired by Pet Practice
during 1994.

   Interest expense increased to $1,594 for the year ended December 28, 1994 as
compared to $183 for the period October 27, 1993 through December 29, 1993.
This increase was primarily due to the inclusion of a full year of interest
expense on debt incurred during the period October 27, 1993 through December 29,
1993 and additional debt incurred to finance acquisitions and operations in
1994.

                                      102

<PAGE>
 
LIQUIDITY AND CAPITAL RESOURCES

   Pet Practice's operations require continued access to cash, primarily to fund
acquisitions, purchases of property and equipment, debt repayments, payments
pursuant to earn-out arrangements and working capital requirements.

   Pet Practice's operations and acquisitions through July 1995 were financed
primarily through debt provided by Pet Practice's major stockholder and
borrowings under an aggregate of $19,000 in demand credit facilities with banks,
which were unconditionally guaranteed by Pet Practice's major stockholder.  All
of such debt was repaid in August 1995 using a portion of the net proceeds of
Pet Practice's initial public offering of 4,300,000 shares of Pet Practice
Common Stock, which was consummated on August 4, 1995.  Pet Practice's demand
credit facilities with banks were terminated effective with the public offering.

   Net proceeds of Pet Practice's initial public offering, after repayment of
approximately $34,000 of certain debt and mandatorily redeemable preferred stock
and related interest and dividends thereon, were approximately $23,000.  Such
net proceeds were added to Pet Practice's working capital and have been used
primarily to finance acquisitions and capital expenditures and for general
corporate purposes.

   Pet Practice had a working capital deficit of approximately $186 and cash and
cash equivalents of approximately $4,916 at April 3, 1996, working capital of
approximately $4,161 and cash and cash equivalents of approximately $10,097 at
January 3, 1996, and a working capital deficit of approximately $16,168 and cash
and cash equivalents of approximately $910 at December 28, 1994.  The increases
in both working capital and cash and cash equivalents from December 28, 1994
were primarily attributable to the net proceeds of Pet Practice's initial public
offering, less cash used for acquisitions, purchases of property and equipment
and working capital during the period from August 1995 through April 3, 1996.

   Cash used by operating activities was $1,239 for the thirteen weeks ended
April 3, 1996,  and $4,486 and $2,117 for the years ended January 3, 1996 and
December 28, 1994, respectively.

   During the thirteen weeks ended April 3, 1996 and the years ended January 3,
1996 and December 28, 1994, Pet Practice used cash totalling approximately
$2,116, $13,082 and $9,557, respectively, for acquisitions.  Pet Practice has
achieved a substantial portion of its growth in the past, and anticipates it
will derive a substantial part of its growth in the future, through acquisitions
of veterinary clinics for a combination of cash, notes payable and stock.
Subject to available capital, Pet Practice anticipates it will complete the
acquisition of a significant number of additional clinics in 1996.

   Pet Practice has issued cash, notes and shares of Pet Practice Common Stock
to sellers in connection with acquisitions of practices to date.  Pet Practice
is obligated to pay additional consideration to sellers of businesses primarily
contingent upon achievement of certain financial criteria over periods of one to
five years from the dates of acquisition.  Although the amount of additional
consideration to be issued cannot be determined until the earn-out periods
expire and the attainment of criteria is established, Pet Practice expects that
the additional consideration issued to sellers pursuant to these arrangements
will constitute a significant portion of the total consideration for certain
acquisitions.  If such criteria are attained, but not exceeded, Pet Practice
will be obligated to make cash payments of approximately $2,881 and issue
approximately 90,000 shares of Pet Practice Common Stock over the next five
years.  A lesser amount of cash would be paid and a lesser number of shares of
Pet Practice Common Stock would be issuable under certain acquisition agreements
if the financial criteria are not met and a greater amount of cash would be paid
and a greater number of shares of Pet Practice Common Stock would be issuable
under certain acquisition agreements if the financial criteria are exceeded.
For example, if the financial criteria with respect to certain of the
acquisitions were to be exceeded by 20%, Pet Practice would be obligated to make
cash payments of approximately $3,167 and issue approximately 109,000 shares of
Pet Practice Common Stock over the next five years.

   During the thirteen weeks ended April 3, 1996 and the years ended January 3,
1996 and December 28, 1994, Pet Practice used approximately $905, $4,662 and
$206, respectively, for purchases of property and equipment.  Pet Practice
anticipates that it will use between $2,000 and $4,000 for purchases of property
and equipment in 1996.

   Pet Practice intends to fund its future cash requirements primarily from cash
on hand, internally generated funds and other sources of financing currently
being explored by Pet Practice.  Pet Practice's cash requirements for 1996
exceed the aggregate of cash currently on hand and cash expected to be generated
internally.  As a result, Pet Practice is currently

                                      103

<PAGE>
 
exploring potential sources for additional financing.  There can be no
assurances that such suitable financing can be obtained.  If Pet Practice is
unable to obtain such additional financing, management may need to modify the
pace of acquisitions and/or the planned level of capital expenditures.

   As discussed further in "THE MERGER" and Note 12 of Notes to Pet Practice's
Consolidated Financial Statements, on March 22, 1996 Pet Practice announced that
it had signed a definitive agreement (the "Merger Agreement") providing for the
merger of Pet Practice with VCA.  If completed, the Merger will result in Pet
Practice becoming a wholly owned subsidiary of VCA.  Consummation of the merger
is expected in the second or third quarter of 1996 and is subject to certain
conditions.

   Pursuant to the terms of the Merger Agreement, Pet Practice is subject to
certain restrictions on actions it can take between the date of the Merger
Agreement and the closing of the Merger of Pet Practice and VCA.  In particular,
there are restrictions on capital expenditures and on Pet Practice's ability to
make acquisitions.  The restrictions set forth in the Merger Agreement may
impact Pet Practice's plans with respect to acquisitions and capital
expenditures.

Recently Issued Accounting Standards

   In October 1995, the FASB issued Statement of Financial Accounting Standards
No. 123, "Accounting for Stock Based Compensation" ("SFAS 123").  SFAS 123, the
disclosure provisions of which must be implemented for fiscal years beginning
subsequent to December 15, 1995, establishes a fair value based method of
accounting for stock based compensation plans, the effect of which can either be
disclosed or recorded.  Pet Practice will adopt the disclosure provisions of
SFAS 123 in 1996.  Pet Practice intends to retain the intrinsic value method of
accounting for stock based compensation which it currently follows.

                                      104

<PAGE>
 
                       UNAUDITED PRO FORMA FINANCIAL DATA

VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

         The following unaudited pro forma financial data and explanatory notes
give effect to all acquisitions (36 animal hospitals and nine veterinary
diagnostic laboratories) completed by VCA during 1995 and 1996 (through June 7,
1996) (the "VCA Acquired Companies"), VCA's issuance on April 17, 1996 of the
Debentures and the pending acquisition of four animal hospitals (the "Pending
VCA Acquisitions").

         The unaudited pro forma financial data have been prepared utilizing the
historical consolidated financial statements of VCA and the historical financial
statements of the VCA Acquired Companies and the Pending VCA Acquisitions.  The
acquisitions have been accounted for under purchase accounting except for the
acquisition of two animal hospitals which have been accounted for as a pooling
of interests.  The unaudited pro forma financial data are based on the estimates
and assumptions set forth in the notes thereto.

         The unaudited pro forma condensed consolidated statements of operations
for VCA represent the historical results of operations of VCA for the year ended
December 31, 1995 and the three months ended March 31, 1996 adjusted to reflect
the acquisitions of the VCA Acquired Companies and the Pending VCA Acquisitions
as if they had occurred at the beginning of the period.  The unaudited pro forma
condensed consolidated balance sheet represents the balance sheet of VCA at
March 31, 1996 adjusted to reflect the issuance of the Debentures and the
acquisitions of the VCA Acquired Companies acquired after March 31, 1996 and the
Pending VCA Acquisitions as if such acquisitions had occurred on March 31, 1996.

          Unaudited pro forma financial data are provided for illustrative
purposes only and are not necessarily indicative of the results of operations or
financial position that would have occurred if the issuance of the Debentures
and the acquisitions of the VCA Acquired Companies and the Pending VCA
Acquisitions had been consummated at the beginning of the period presented and
March 31, 1996 respectively, nor are they necessarily indicative of future
operating results or financial position.

                                      105
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

       UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                      FOR THE YEAR ENDED DECEMBER 31, 1995
                     (In thousands, except per share data)

<TABLE>
<CAPTION>
                                             VCA           PRO            PRO            VCA                        VCA
                                           ACQUIRED       FORMA          FORMA         PENDING       PRO FORMA    PRO FORMA
                                 VCA      COMPANIES(1)  ADJUSTMENTS     COMBINED   ACQUISITIONS(25) ADJUSTMENTS   COMBINED
                              ---------   ---------     -----------    ---------   ---------------- ----------   -----------
<S>                           <C>         <C>           <C>            <C>         <C>           <C>            <C>
Revenues
 Animal hospital.............   $51,437     $30,458                     $ 81,895     $3,310                       $ 85,205
 Laboratory..................    37,606      17,674     $   125 (2)       55,405                                    55,405
 Pet food....................     4,756                                    4,756                                     4,756
 Intercompany sales..........    (1,727)                   (125)(3)       (1,852)                                   (1,852)
                                -------     -------     -------         --------     ------          --------     --------
                                 92,072      48,132                      140,204      3,310                        143,514
                                -------     -------     -------         --------     ------          --------     --------
Direct costs
 Animal hospital.............    42,056      28,015      (1,308)(4)       68,763      3,076          $     76(4)    71,915
 Laboratory..................    23,977      10,155          (5)(5)       34,127                                    34,127
 Pet food....................     3,205                                    3,205                                     3,205
 Intercompany sales..........    (1,727)                   (125)(3)       (1,852)                                   (1,852)
                                -------     -------     -------         --------     ------          --------     --------
                                 67,511      38,170      (1,438)         104,243      3,076                76      107,395
                                -------     -------     -------         --------     ------          --------     --------
Gross profit
 Animal hospital.............     9,381       2,443       1,308           13,132        234               (76)      13,290
 Laboratory..................    13,629       7,519         130           21,278                                    21,278
 Pet food....................     1,551                                    1,551                                     1,551
                                -------     -------     -------         --------     ------          --------     --------
                                 24,561       9,962       1,438           35,961        234               (76)      36,119
Selling, general and             
 administrative..............    10,833       5,411        (993)(6)       15,251                                    15,251
Depreciation and                  
 amortization................     3,291         977         937(7)         5,205         24               106(7)     5,335
Royalty fees.................                   118        (118)(8)
Restructuring charge.........     1,086                                    1,086                                     1,086
                                -------     -------     -------         --------     ------          --------     --------
Operating income.............     9,351       3,456       1,612           14,419        210              (182)      14,447
Interest expense, net........     1,639         318       1,593(9)         3,550         37               139(9)     3,726
                                -------     -------     -------         --------     ------          --------     --------
Income before minority            
 interest and provision for
 income taxes................     7,712       3,138          19           10,869        173              (321)      10,721
Minority interest in income       
 of subsidiaries.............     2,910           7         346(10)        3,263                                     3,263
                                -------     -------     -------         --------     ------          --------     --------
Income before provision for       
 income taxes................     4,802       3,131        (327)           7,606        173              (321)       7,458
Provision for income taxes...     2,238         102       2,698(11)        5,038                          (59)(11)   4,979
                                -------     -------     -------         --------     ------          --------     --------
Net income...................   $ 2,564     $ 3,029     $(3,025)        $  2,568     $  173          $   (262)    $  2,479
                                =======     =======     =======         ========     ======          ========     ========
Primary earnings per share...   $  0.24                                 $   0.22                                  $   0.22
                                =======                                 ========                                  ========
Weighted average common          
 shares used for computing
 primary earnings per share..    10,703                     745(12)       11,448                                    11,448
                                =======                 =======         ========                                  ========
Fully diluted earnings per
 share.......................   $  0.23                                 $   0.21                                  $   0.21
                                =======                                 ========                                  ========
 Weighted average common          
  shares used for computing
  fully diluted earnings per
  share......................    11,238                     745(12)       11,983                                    11,983
                                =======                 =======         ========                                  ========
</TABLE>

                                      106
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

       UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                   FOR THE THREE MONTHS ENDED MARCH 31, 1996
                     (In thousands, except per share data)
<TABLE>
<CAPTION>
                                              VCA              PRO           PRO            VCA                            VCA
                                            ACQUIRED          FORMA         FORMA          PENDING         PRO FORMA     PRO FORMA
                                 VCA      COMPANIES(28)     ADJUSTMENTS    COMBINED    ACQUISITIONS(27)   ADJUSTMENTS    COMBINED
                              ---------   -------------     -----------    ---------   ----------------   -----------   -----------
<S>                           <C>         <C>               <C>            <C>         <C>                <C>           <C>
Revenues 
 Animal hospital.............  $17,831       $2,049                         $19,880          $790                         $20,670
 Laboratory..................   12,056        2,547                          14,603                                        14,603
 Pet food....................    1,850                                        1,850                                         1,850
 Intercompany sales..........     (733)                                        (733)                                         (733)
                               -------       ------            ------       -------          ----              ----       -------
                                31,004        4,596                          35,600           790                          36,390
                               -------       ------            ------       -------          ----              ----       -------
Direct costs
 Animal hospital.............   15,390        1,929             $(150)(4)    17,169           723              $ 32(4)     17,924
 Laboratory..................    7,386        1,618               (21)(5)     8,983                                         8,983
 Pet food....................    1,160                                        1,160                                         1,160
 Intercompany sales..........     (733)                                        (733)                                         (733)
                               -------       ------            ------       -------          ----              ----       -------
                                23,203        3,547              (171)       26,579           723                32        27,334
                               -------       ------            ------       -------          ----              ----       -------
Gross profit
 Animal hospital.............    2,441          120               150         2,711            67               (32)        2,746
 Laboratory..................    4,670          929                21         5,620                                         5,620
 Pet food....................      690                                          690                                           690
                               -------       ------            ------       -------          ----              ----       -------
                                 7,801        1,049               171         9,021            67               (32)        9,056
Selling, general and             
 administrative..............    3,314        1,147               (78)(6)     4,383                                         4,383
Depreciation and amortization    1,034           37               100 (7)     1,171             5                27 (7)     1,203
                               -------       ------            ------       -------          ----              ----       -------
Operating income.............    3,453         (135)              149         3,467            62               (59)        3,470
Interest expense, net........      296           16               176 (9)       488                              36 (9)       524
                               -------       ------            ------       -------          ----              ----       -------
Income before minority           
 interest and provision for
 income taxes................    3,157         (151)              (27)        2,979            62               (95)        2,946
Minority interest in income      
 of subsidiaries.............    1,346                                        1,346                                         1,346
                               -------       ------            ------       -------          ----              ----       -------
Income before provision for      
 income taxes................    1,811         (151)              (27)        1,633            62               (95)        1,600
Provision for income taxes...      799                            (64)(11)      735                             (13)(11)      722
                               -------       ------            ------       -------          ----              ----       -------
Net income...................  $ 1,012       $ (151)           $   37       $   898          $ 62              $(82)      $   878
                               =======       ======            ======       =======          ====              ====       =======
 
Primary earnings per share...  $  0.07                                      $  0.06                                       $  0.06
                               =======                                      =======                                       =======
Weighted average common         
 shares used for computing
  primary earnings per share.   15,110                            267 (12)   15,377                                        15,377
                               =======                         ======       =======                                       =======
Fully diluted earnings per          
 share.......................  $  0.07                                      $  0.06                                       $  0.06
                               =======                                      =======                                       =======
Weighted average common            
 shares used for computing
 fully diluted earnings per
 share.......................   15,492                            267 (12)   15,759                                        15,759
                               =======                         ======       =======                                       =======
</TABLE>

                                      107
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

            UNAUDITED PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
                               AT MARCH 31, 1996
                                 (In thousands)

<TABLE>
<CAPTION>
                                              SECOND             PRO          PRO            VCA                            VCA
                                              QUARTER           FORMA        FORMA         PENDING        PRO FORMA       PRO FORMA
                                 VCA      ACQUISITIONS(13)   ADJUSTMENTS    COMBINED   ACQUISITIONS(26)  ADJUSTMENTS      COMBINED
                              --------    ----------------   -----------    --------   ---------------   ------------     ---------
<S>                           <C>         <C>                <C>            <C>        <C>               <C>              <C>
ASSETS
Current assets:
 Cash and                         
  equivalents                 $ 37,615                         $78,958 (14)  $116,573                     $(1,025)(14)     $115,548
 Accounts                         
  receivable, net                8,816            $  3              (1)(15)     8,818        $260            (235)(15)        8,843
 Other current assets            5,497              51             (10)(16)     5,538         113             (63)(16)        5,588
                              --------            ----         -------       --------        ----           -----           -------
                                51,928              54          78,947        130,929         373          (1,323)          129,979
Property and                    
 equipment, net                 15,981             654           1,053 (17)    17,688         379            (254)(17)       17,813
Other assets:               
 Notes receivable                1,183                                          1,183                                         1,183
 Goodwill                       79,637                           3,829 (18)    83,466          37           2,026 (18)       85,529
 Covenants                       5,573                             407 (19)     5,980                         252 (19)        6,232
 Other                           2,746                           1,688 (20)     4,434           4              (4)(21)        4,434
                              --------            ----         -------       --------        ----         -------          --------
                              $157,048            $708         $85,924       $243,680        $793         $   697          $245,170
                              ========            ====         =======       ========        ====         =======          ========
                            
LIABILITIES AND             
 STOCKHOLDERS' EQUITY       
Current liabilities:        
 Current portion of           
  long-term debt              $  7,563                         $   232 (22)  $  7,795         $167        $    58 (22)     $  8,020
 Accounts payable                5,794            $ 21                          5,815          146           (146)(23)        5,815
 Other accrued                   
  liabilities                    5,577             174             150 (22)     5,901           31            134 (22)        6,066
                              --------            ----         -------       --------         ----          -----           -------
                                18,934             195             382         19,511          344             46            19,901
Long-term obligations,           
 less current               
 portion                        29,588             322          85,496 (24)   115,406          210            890 (24)      116,506
Deferred income taxes            1,538                                          1,538                                         1,538
Minority interest                4,843                                          4,843                                         4,843
Stockholders' equity           102,145             191              46 (25)   102,382          239 (25)      (239)(25)      102,382
                              --------            ----         -------       --------         ----          -----          --------
                              $157,048            $708         $85,924       $243,680         $793          $ 697          $245,170
                              ========            ====         =======       ========         ====          =====          ========
</TABLE>

                                      108
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

         NOTES TO UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL
                                  STATEMENTS
                                        
(1)  Reflects the historical statement of operations data of the VCA Acquired
     Companies for the period from January 1, 1995 to the earlier of the
     respective dates of acquisition of such companies or December 31, 1995.
     Each of the acquisitions has been accounted for as a purchase. Accordingly,
     the results of operations of each such VCA Acquired Company is included in
     the results of operations of VCA from the date of acquisition.

     The following are the VCA Acquired Companies: Cenvet, Inc. ("Cenvet"),
     January 1995; Animal Reference Lab, January 1995; BerLa, Inc. (d/b/a Animal
     and Avian Clinic of Golden Cove), January 1995; Silver Spur Animal
     Hospital, Inc., January 1995; Stephen A. LaDue D.V.M., P.A. (d/b/a Tampa
     Animal Medical Center), January 1995; Lewis Veterinary Hospital, Inc.,
     February 1995; Animal Hospital of Sinking Spring, March 1995; Vet Research,
     Inc., March 1995; Lewelling Veterinary Hospital, Inc., April 1995;
     Northwest Veterinary Diagnostics, Inc., May 1995; South County Veterinary
     Clinic, Inc., May 1995; Alpine Veterinary Clinic, Inc., May 1995; Eagle
     River Veterinary Hospital, Inc., June 1995; Clinipath Diagnostics, Inc.,
     July 1995; Florida Veterinary Laboratories, Inc. (composed of four
     hospitals), July 1995; Miller Animal Hospital, Inc., July 1995; Marina
     Veterinary Clinic, July 1995; South Shore Veterinary Associates, Inc., July
     1995 (includes four animal hospitals); Pet Complex, P.A. (d/b/a All Pets
     Animal Complex-Sandy), July 1995; Brett T. Neville, D.V.M., Inc., P.C.
     (d/b/a All Pets Animal Complex-Taylorsville), July 1995; Castle Shannon
     Veterinary Hospital, Inc., August 1995; Fox Chapel Animal Hospital, Inc.,
     September 1995 (includes two animal hospitals); East Anchorage Veterinary
     Hospital, Inc., September 1995; Greater Savannah Hospital for Animals,
     Inc., September 1995; Kaneohe Pet Health Center, November 1995; Elkton
     Veterinary Center, Inc. (composed of two hospitals), November 1995;
     Conawago Veterinary Practice, January 1996; Animal Hospital of St.
     Petersburg, Inc., January 1996; Kaneohe Veterinary Clinic, January 1996;
     Veterinary Referral Associates, Inc., February 1996; Lammers Veterinary
     Hospital, Inc., February 1996; Southwest Veterinary Diagnostics Inc., March
     1996; Clarmar Animal Hospital, Inc., March 1996; Rotherwood Animal Clinic,
     Inc., March 1996; Northboro Veterinary Clinic, Inc., April 1996; Diagnostic
     Veterinary Services, Inc., May 1996; the assets pertaining to the
     veterinary business of APL Healthcare Group Inc., May 1996; Beacon Hill Cat
     Hospital, Inc., May 1996; Old Town Veterinary Hospital, Inc., May 1996;
     North Rockville Veterinary Hospital Inc., June 1996.

(2)  Represents the revenue for laboratory services previously rendered by
     laboratories not owned by VCA.  Such services are to be rendered by
     laboratories owned by VCA following the respective dates of acquisition.

(3)  Represents the elimination of intercompany revenue and the corresponding
     expense.

(4)  Represents principally an adjustment of $597,000 and $107,000 for the
     twelve months ended December 31, 1995 and the three months ended March 31,
     1996, respectively, related to rental expense for the difference between
     such historical amounts and that to be paid following the acquisitions as a
     result of modifications to lease terms or the purchase of the hospital land
     and buildings previously leased, and an adjustment of $685,000 and $74,000
     for the twelve months ended December 31, 1995 and the three months ended
     March 31, 1996, respectively, related to compensation for services provided
     by owner/veterinarians and other key employees for the difference between
     such historical amounts and employment terms existing following the
     acquisition.

(5)  Represents principally an adjustment of $86,000 and $21,000 for the twelve
     months ended December 31, 1995 and the three months ended March 31, 1996,
     respectively, related to (i) rental expense for the difference between such
     historical amounts and that to be paid following the acquisitions as a
     result of modifications to lease terms or the purchase of the laboratory
     land and buildings previously leased, and (ii) increases reflecting the
     incremental costs associated with the laboratory revenue which was
     previously rendered by laboratories not owned by VCA. Such services are to
     be rendered by laboratories owned by VCA following the respective dates of
     acquisition.

(6)  Adjustments to selling, general and administrative expenses consist
     primarily of adjustments to certain VCA Acquired Companies' historical
     amounts relating to (i) compensation for services provided by
     owner/veterinarians and other key employees for the difference between such
     historical amounts and employment terms existing following the acquisition,
     and (ii) administrative services eliminated following certain acquisitions.

                                      109

<PAGE>
 
(7) Reflects additional depreciation of assets acquired and amortization of
   goodwill and other intangibles resulting from the acquisition of the VCA
   Acquired Companies.  Goodwill acquired in 1995 and 1996 amounted to
   $55,247,000.  Other intangibles acquired in 1995 and 1996 amounted to
   $6,412,000.  Goodwill is amortized over forty years.  Other intangibles
   consist primarily of covenants not to compete and are amortized over the term
   of the agreement (principally 5 to 10 years).

(8) Reflects the elimination of royalty fee expense under an agreement that was
    not assumed by VCA.

(9) Reflects the additional interest expense that would have been incurred on
    the indebtedness of $27,558,000 issued by VCA in connection with the
    acquisitions of the VCA Acquired Companies ($1,325,000 related to the VCA
    Pending Acquisitions).  Annual interest rates on such indebtedness range
    from approximately 5.0 percent to 9.0 percent.

(10) Represents the minority interest in certain of the VCA Acquired Companies
     net of an adjustment of $219,000, to eliminate a minority interest in
     another VCA Acquired Company acquired in 1995.

(11) Represents an adjustment to provide income taxes at the effective rate.

(12) To reflect the issuance of approximately 1,469,200 and 393,940 shares of
     VCA Common Stock for the twelve months ended December 31, 1995 and the
     three months ended March 31, 1996, respectively, in connection with the
     acquisition of the VCA Acquired Companies.

(13) Reflects the combined financial position of the VCA Acquired Companies
     acquired after March 31, 1996 (the "Second Quarter Acquisitions").  See
     Note 1.

(14) Represents (i) the net proceeds received in connection with the issuance of
     the Debentures ($82,697,000) net of cash consideration paid in connection
     with the Second Quarter Acquisitions ($3,739,000) and (ii) cash
     consideration ($1,025,000) to be paid in connection with the VCA Pending
     Acquisitions.

(15) Reflects an adjustment to net realizable value of accounts receivable
     acquired from certain companies.

(16) Reflects an adjustment to reflect other current assets, principally
     inventory, at fair market value.

(17) Reflects an adjustment to fair market value of property and equipment, net,
   acquired.

(18) Reflects the excess of cost over the fair value of the net tangible assets
     acquired in connection with the acquisitions.

(19) Represents the value of consideration given in connection with non-compete
     agreements obtained in connection with the acquisitions.

(20) Represents the deferred financing costs related to the issuance of the
   Debentures.

(21) Reflects the exclusion of certain assets not acquired in connection with
     certain acquisitions.

(22) Represents the indebtedness incurred or assumed in connection with the
     acquisitions, net of indebtedness of the acquired entities which was not
     assumed.

(23) Reflects the elimination of certain current liabilities not assumed in
     connection with the acquisition of certain of the Second Quarter
     Acquisitions.

(24) Reflects long-term indebtedness incurred in connection with the acquisition
     of certain Second Quarter Acquisitions and VCA Pending Acquisitions at
     annual interest rates ranging from 5.0 percent to 8.0 percent.

(25) Reflects the elimination of the stockholders' equity of the Second Quarter
     Acquisitions and VCA Pending Acquisitions.

(26) Reflects the pending acquisition of four animal hospitals scheduled to be
     consummated before July 15, 1996.

                                      110

<PAGE>
 
(27) Reflects the acquisition of animal hospitals and laboratories which
   occurred in 1996.  See Note 1.  The operations of Conawago Veterinary
   Practice, Animal Hospital of St. Petersburg, Inc. and Kaneohe Veterinary
   Clinic which were acquired on January 2, 1996 are included in "VCA Acquired
   Companies."

                                      111

<PAGE>
 
PET PRACTICE


      The following unaudited pro forma financial data and explanatory notes
give effect to all acquisitions (41 animal hospitals during 1995 and through
June 7, 1996) completed by Pet Practice (collectively, the "Pet Practice
Acquired Companies").  The unaudited pro forma financial data should be read in
conjunction with Pet Practice's historical consolidated financial statements and
notes thereto appearing elsewhere in this Joint Proxy Statement/Prospectus.

      The unaudited pro forma financial data have been prepared utilizing the
historical financial statements of Pet Practice and the historical financial
statements of the Pet Practice Acquired Companies.  The unaudited pro forma
financial data are based on the estimates and assumptions set forth in the notes
to the unaudited pro forma financial data.

      The unaudited pro forma condensed consolidated statements of operations
represent the historical results of operations of Pet Practice for the period
ended January 3, 1996 and the thirteen weeks ended April 3, 1996 adjusted to
reflect acquisitions of the Pet Practice Acquired Companies as if they had
occurred at the beginning of the periods presented.  Each of the acquisitions
has been accounted for as a purchase.

      The unaudited pro forma financial data are provided for illustrative
purposes only and are not necessarily indicative of the results of operations or
financial position that would have occurred if the acquisitions of the Pet
Practice Acquired Companies had been consummated at the beginning of the periods
presented, nor are they necessarily indicative of future operating results or
financial position.

                                      112

<PAGE>
 
                             THE PET PRACTICE, INC.

       UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                       FOR THE YEAR ENDED JANUARY 3, 1996
                     (In thousands, except per share data)


<TABLE>
<CAPTION>
                                                                PET PRACTICE                      PET PRACTICE
                                                                  ACQUIRED        PRO FORMA        PRO FORMA
                                              PET PRACTICE      COMPANIES (1)    ADJUSTMENTS        COMBINED
                                           ---------------    ----------------   ------------    -------------
<S>                                        <C>                <C>                <C>             <C>      
Revenues                                       $40,571             $18,257                            $58,828
Costs of revenues                               34,776              15,914          $(761)(2)          49,929
                                               -------             -------          -----             -------
Gross profit                                     5,795               2,343            761               8,899
General and administrative                       5,796                 410           (410)(3)           5,796
Amortization of excess of cost over fair         
 value of net assets acquired and other
 intangible assets                               1,229                                620 (4)           1,849 
                                               -------             -------          -----             -------
Operating income (loss)                         (1,230)              1,933            551               1,254
Interest expense, net                            1,861                 290            746 (5)           2,897
                                               -------             -------          -----             -------
Income (loss) before provision for              (3,091)              1,643           (195)             (1,643)
 income taxes
Provision for income taxes                          84                                                     84
                                               -------             -------          -----             -------
Net income (loss)                              $(3,175)            $ 1,643          $(195)            $(1,727)
                                               =======             =======          =====             ======= 
Loss per share                                 $ (0.54)                                               $ (0.29)
                                               =======                              =====             ======= 
                                                                           
Weighted average common shares used                                        
 for computing loss per share                    5,863                                181 (6)           6,044 
                                               =======                              =====             ======= 
</TABLE>

                                      113

<PAGE>
 
                             THE PET PRACTICE, INC.

       UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                   FOR THE THIRTEEN WEEKS ENDED APRIL 3, 1996
                     (In thousands, except per share data)


<TABLE>
<CAPTION>
                                                                PET PRACTICE                      PET PRACTICE
                                                                  ACQUIRED        PRO FORMA        PRO FORMA
                                               PET PRACTICE     COMPANIES (1)     ADJUSTMENTS       COMBINED 
                                               ------------     -------------     -----------     ------------
<S>                                            <C>              <C>               <C>             <C>
Revenues                                           $13,404            $175                            $13,579
Costs of revenues                                   12,104             172          $(18)(2)           12,258
                                                   -------            ----          ----              -------
Gross profit                                         1,300               3            18                1,321
General and administrative                           1,490                                              1,490
Amortization of excess of cost over fair               
 value of net assets acquired and other
 intangible assets                                     460                            10 (4)              470
                                                   -------            ----          ----              -------
Operating income (loss)                               (650)              3             8                 (639)
Interest expense, net                                  228              12            10 (5)              250
                                                   -------            ----          ----              -------
Loss before provision for                             
 income taxes                                         (878)             (9)           (2)                (889)
Provision for income taxes                              21                                                 21
                                                   -------            ----          ----              -------
Net Loss                                           $  (899)           $ (9)         $ (2)             $  (910)
                                                   =======            ====          ====              =======
 
Loss per share                                     $ (0.10)                                           $ (0.11)
                                                   =======                                            =======
 
Weighted average common shares used                  
 for computing loss per share                        8,614                            12 (6)            8,626
                                                   =======                          ====              =======
</TABLE>

                                      114

<PAGE>
 
                            THE PET PRACTICE, INC.

   NOTES TO UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(1)    Reflects the historical statement of operations data for the Pet Practice
       Acquired Companies for the period from December 29, 1994 to the earlier
       of the respective dates of the acquisition of such companies or January
       3, 1996.  Each of the acquisitions has been accounted for as a purchase.
       Accordingly, the results of operations of each of the Pet Practice
       Acquired Companies is included in the results of operations of Pet
       Practice from the date of acquisition.

       The following animal hospitals represent the Pet Practice Acquired
       Companies:

       Marietta Animal Hospital, Inc.; W. Harold Davis, D.V.M. (d/b/a Zionsville
       Animal Clinic); S.V. Rowell D.V.M., Ltd. (d/b/a La Grange Park Pet
       Hospital); Salvatore M. Zeitlin, V.M.D.; P.A. (d/b/a Palm Beach County
       Animal Medical Clinic); Forrest D. Hayes, P.A. (d/b/a Atlantic Animal
       Clinic); Glen R. Redeker, D.V.M. (d/b/a Oakton Animal Clinic); Charles R.
       McCune, D.V.M. (d/b/a 46th Street Pet Clinic); Mary L. Jutte, D.V.M.
       (d/b/a Southland Hospital for Animals and Taylor Veterinary Clinic);
       Academy Animal Hospital of Hillsboro, Inc.; Robert S. Legg, D.V.M., P.A.
       (d/b/a Colonial Animal Hospital); Riviera Animal Hospital, Inc.; Academy
       Animal Inc.; Andreas Wurzer, D.V.M. (d/b/a Chicago Heights Animal
       Hospital); Richard R. Brown, D.V.M. (d/b/a Golfview Animal Clinic);
       Westboro Animal Hospital, P.C.; Andrew M. Payson, D.V.M., P.A. (d/b/a
       Boca Grove Animal Hospital & Pet Supplies); Edward A. Jones, D.V.M.
       (d/b/a Companion Animal Hospital and Oldsmar Animal Hospital); Edgebrook
       Veterinary Hospital P.C.; George D. Brodsky, D.V.M. (d/b/a Bourbonnais
       Animal Clinic); Bowie Hospital, Inc. and Crofton Animal Hospital, Inc.;
       Peter E. Coakley, V.M.D. (d/b/a Animal Extra Care); Academy Animal
       Hospital of Boca, Inc.; Academy Animal Hospital of Cooper City, Inc.;
       Academy Animal Hospital of Coral Springs, Inc.; Peticare Animal Medical
       Center, P.C.; Peter V. Birzon, D.V.M., Animal Hospital of North Miami
       Beach, P.A.; Jon J. Rappaport, D.V.M. and Craig Horowitz, D.V.M. and
       Miami Shores Animal Hospital, P.A.; Edward D. Lukuch, D.V.M. (d/b/a
       Midpark Animal Hospital); Joanne Nelson (d/b/a Collins & South Pompano
       Animal Hospital); Dr. Jenifer Preston, Inc. (d/b/a Westerville East
       Animal Hospital); Donald Denoff, D.V.M., P.A. (d/b/a Wellington Animal
       Hospital); and Neshaminy Animal Medical Center, P.C.

(2)    The adjustments to costs of revenues consist primarily of reductions or
       increases to certain of the Pet Practice Acquired Companies' historical
       amounts of compensation for services provided by owner/veterinarians for
       the difference between such historical amounts and amounts specified in
       employment contracts for comparable positions in Pet Practice, net of
       certain general and administrative expenses of the Pet Practice Acquired
       Companies which have been reclassified as costs of revenues.

(3)    The adjustments to general and administrative expenses consist primarily
       of (i) reductions or increases to certain of the Pet Practice Acquired
       Companies' historical amounts of compensation for certain owners and
       administrative personnel between such historical amounts and amounts
       specified in employment contracts for such individuals, (ii) elimination
       of certain non-recurring charges and credits attributable to the
       acquisitions of the Pet Practice Acquired Companies and (iii)
       reclassifications of certain amounts to cost of revenues.

(4)    The adjustment to amortization of excess of cost over fair value of net
       assets acquired and other intangible assets relates to the additional
       amortization over periods of three to 40 years of the excess of cost over
       fair value of net assets acquired and other intangible assets of the Pet
       Practice Acquired Companies.

(5)    The adjustment reflects the additional interest expense that would have
       been incurred and the reduction of interest income had the consideration
       in the form of cash and notes for the acquisitions of the Pet Practice
       Acquired Companies been paid on December 29, 1994, net of the elimination
       of approximately $290,000 of interest expense relating to outstanding
       debt of certain of the Pet Practice Acquired Companies that was not
       assumed by Pet Practice.  The notes relating to the acquisition of the
       Pet Practice Acquired Companies bear interest at annual rates of 6.0% to
       8.0%.

(6)    Reflects the issuance of an aggregate of approximately 221,000 shares of
       Pet Practice Common Stock in connection with the Pet Practice Acquired
       Companies.

                                      115

<PAGE>
 
VCA AND PET PRACTICE


    The unaudited pro forma financial data and explanatory notes set forth below
give effect to VCA's acquisition of the VCA Acquired Companies, the VCA Pending
Acquisitions, the issuance of the Debentures and the Merger with Pet Practice,
including the acquisition by Pet Practice of the Pet Practice Acquired
Companies.  The unaudited pro forma financial data should be read in conjunction
with the historical consolidated financial statements and notes thereto of Pet
Practice appearing elsewhere in this Joint Proxy Statement/Prospectus.  The
Merger is to be accounted for as a purchase.

    The unaudited pro forma financial data have been prepared utilizing VCA's
unaudited pro forma financial data and Pet Practice's unaudited pro forma
financial data.  The unaudited pro forma financial data are based on estimates
and assumptions set forth in the notes to the unaudited pro forma financial
data.

    The unaudited pro forma condensed combined statements of operations
represent the unaudited pro forma results of operations of VCA and Pet Practice
for the year ended December 31, 1995 and January 3, 1996, respectively, and the
period ended March 31, 1996 and April 3, 1996, respectively, giving effect to
the Merger as if it had occurred at the beginning of the period.  The unaudited
pro forma condensed combined balance sheet was prepared to reflect the Merger as
if it had occurred on March 31, 1996.

    Unaudited pro forma financial data are provided for illustrative purposes
only and are not necessarily indicative of the results of operations or
financial position that would have occurred if the Merger had been consummated
at the beginning of the periods presented nor are they necessarily indicative of
future operating results or financial position.

                                      116

<PAGE>
 
                              VCA AND PET PRACTICE

         UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS
                      FOR THE YEAR ENDED DECEMBER 31, 1995
                     (In thousands, except per share data)

<TABLE>
<CAPTION>
                                                                                                 VCA AND
                                                  VCA        PET PRACTICE                      PET PRACTICE
                                               PRO FORMA      PRO FORMA        PRO FORMA        PRO FORMA
                                               COMBINED        COMBINED       ADJUSTMENTS        COMBINED
                                               --------      ------------     -----------      ------------
<S>                                            <C>            <C>             <C>              <C>
Revenues
 Animal hospital...........................    $ 85,205        $ 58,828                           $144,033
 Laboratory................................      55,405                                             55,405
 Pet food..................................       4,756                                              4,756
 Intercompany sales........................      (1,852)                                            (1,852)
                                               --------        --------         -------           --------
                                                143,514          58,828                            202,342
Direct costs
 Animal hospital...........................      71,915          49,929         $  (636)(1)        121,208
 Laboratory................................      34,127                                             34,127
 Pet food..................................       3,205                                              3,205
 Intercompany sales........................      (1,852)                                            (1,852)
                                               --------        --------         -------           --------
                                                107,395          49,929            (636)           156,688
Gross profit
 Animal hospital...........................      13,290           8,899             636             22,825
 Laboratory................................      21,278                                             21,278
 Pet food..................................       1,551                                              1,551
                                               --------        --------         -------           --------
                                                 36,119           8,899             636             45,654
Selling, general and administrative........      15,251           5,796            (152)(1)         20,895
Amortization of excess of cost over fair
 value of net assets acquired and other
 intangible assets.........................                       1,849          (1,849)(1)
 
Depreciation and amortization..............       5,335                           4,249 (1)(2)       9,584
Restructuring charge.......................       1,086                                              1,086
                                               --------        --------         -------           --------
Operating income...........................      14,447           1,254          (1,612)            14,089
Interest expense, net......................       3,726           2,897                              6,623
                                               --------        --------         -------           --------
Income (loss) before minority interest
 and provision for income taxes............      10,721          (1,643)         (1,612)             7,466
Minority interest in income of                    
 subsidiaries..............................       3,263                                              3,263
                                               --------        --------         -------           --------
Income (loss) before provision for                7,458          (1,643)         (1,612)             4,203
 income taxes..............................
Provision for income taxes.................       4,979              84            (638)(3)          4,425
                                               --------        --------         -------           --------
 
Net income (loss)..........................   $   2,479        $ (1,727)        $  (974)          $   (222)
                                              =========        ========         =======           ========
 
Primary earnings (loss) per share..........   $    0.22                                           $  (0.02)
                                              =========                                           ========
 
Weighted average common shares used                                                 
 for computing primary earnings (loss)           
 per share.................................      11,448                           3,273 (8)         14,721
                                              =========                         =======           ========
 
Fully diluted earnings (loss) per share....   $    0.21
                                              =========
Weighted average common shares used              
 for computing fully diluted earnings
 per share.................................      11,983
                                              =========
</TABLE>

                                      117

<PAGE>
 
                              VCA AND PET PRACTICE

         UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS
                   FOR THE THREE MONTHS ENDED MARCH 31, 1996
                     (In thousands, except per share data)
<TABLE>
<CAPTION>
                                                                                                 VCA AND
                                                  VCA        PET PRACTICE                      PET PRACTICE
                                               PRO FORMA      PRO FORMA        PRO FORMA        PRO FORMA
                                               COMBINED        COMBINED       ADJUSTMENTS        COMBINED
                                               --------      ------------     -----------      ------------
<S>                                            <C>            <C>             <C>              <C>
Revenues
 Animal hospital...........................     $20,670         $13,579                            $34,249
 Laboratory................................      14,603                                             14,603
 Pet food..................................       1,850                                              1,850
 Intercompany sales........................        (733)                                              (733)
                                                -------         -------         ------             -------
                                                 36,390          13,579                             49,969
Direct costs
 Animal hospital...........................      17,924          12,258         $ (343)(1)          29,839
 Laboratory................................       8,983                                              8,983
 Pet food..................................       1,160                                              1,160
 Intercompany sales........................        (733)                                              (733)
                                                -------         -------         ------             -------
                                                 27,334          12,258           (343)             39,249
Gross profit
 Animal hospital...........................       2,746           1,321            343               4,410
 Laboratory................................       5,620                                              5,620
 Pet food..................................         690                                                690
                                                -------         -------         ------             -------
                                                  9,056           1,321            343              10,720
Selling, general and administrative........       4,383           1,490            (42)(1)           5,831
Amortization of excess of cost over fair
 value of net assets acquired and other
 intangible assets.........................                         470           (470)(1)
Depreciation and amortization..............       1,203                          1,070 (1)(2)        2,273
                                                -------         -------         ------             -------
Operating income (loss)....................       3,470            (639)          (215)              2,616
Interest expense, net......................         524             250                                774
                                                -------         -------         ------             -------
Income (loss) before minority interest
 and provision for income taxes............       2,946            (889)          (215)              1,842
Minority interest in income of                    
 subsidiaries..............................       1,346                                              1,346
                                                -------         -------         ------             -------
Income (loss) before provision for                
 income taxes..............................       1,600            (889)          (215)                496
Provision for income taxes.................         722              21           (276)(3)             467
                                                -------         -------         ------             -------
Net income (loss)..........................     $   878         $  (910)        $   61             $    29
                                                =======         =======         ======             =======
 
Primary earnings per share.................     $  0.06                                            $  0.00
                                                =======                                            =======
 
Weighted average common shares used                                                 
 for computing primary earnings per              
 share.....................................      15,377                          3,273 (8)          18,650
                                                =======                         ======             =======

Fully diluted earnings per share...........     $  0.06                                            $  0.00
                                                =======                                            =======
 
Weighted average common shares used              
 for computing fully diluted earnings
 per share.................................      15,759                          3,273 (8)          19,032
                                                =======                         ======             =======
</TABLE>

                                      118

<PAGE>
 
                              VCA AND PET PRACTICE

              UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET
                               AT MARCH 31, 1996
                                 (IN THOUSANDS)
<TABLE>
<CAPTION>
                                                                                                 VCA AND
                                                  VCA                                           PET PRACTICE
                                               PRO FORMA                       PRO FORMA         PRO FORMA
                                               COMBINED      PET PRACTICE     ADJUSTMENTS        COMBINED
                                               --------      ------------     -----------      ------------
<S>                                            <C>           <C>              <C>              <C>
ASSETS
Current assets:
 Cash and equivalents                          $115,548         $ 4,916         $ (3,400)(4)      $117,064
 Accounts receivable, net                         8,843             836                              9,679
 Other current assets                             5,588           5,010                             10,598
                                               --------         -------         --------          -------- 
                                                129,979          10,762           (3,400)          137,341
 
Property and equipment, net                      17,813          15,029             (857)(5)        31,985
Other assets:
 Notes receivable                                 1,183                                              1,183
 Goodwill                                        85,529                           90,309 (6)(9)    175,838
 Covenants                                        6,232                               96 (9)         6,328
 Excess of cost over fair value of
  net assets acquired and other
  intangible assets                                              53,775          (53,775)(9)
 Other                                            4,434             149            1,431 (9)         6,014
                                               --------         -------         --------          -------- 
                                               $245,170         $79,715         $ 33,804          $358,689
                                               ========         =======         ========          ========
 
LIABILITIES AND
 STOCKHOLDERS' EQUITY
Current liabilities:
 Current portion of long-term debt             $  8,020         $ 3,820                           $ 11,840
 Accounts payable                                 5,815           2,169                              7,984
 Other accrued liabilities                        6,066           4,989                             11,055
                                               --------         -------         --------          -------- 
                                                 19,901          10,978                             30,879
Long-term obligations, less current             116,506          16,216                            132,722
 portion
Other liabilities
Deferred income taxes                             1,538                                              1,538
Minority interest                                 4,843                                              4,843
Stockholders' equity                            102,382          52,521         $ 33,804 (7)(8)    188,707
                                               --------         -------         --------          -------- 
                                               $245,170         $79,715         $ 33,804          $358,689
                                               ========         =======         ========          ======== 
</TABLE>

                                      119

<PAGE>
 
                             VCA AND PET PRACTICE

     NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS

 (1)  To reclassify depreciation expense and amortization of excess of cost over
      fair value of net assets acquired and other intangible assets to conform
      with VCA's presentation.

 (2)  Represents depreciation of assets acquired and amortization of goodwill
      and other intangibles.

 (3)  Represents an adjustment to provide income taxes at the effective rate.

 (4)  Represents transaction costs including financial advisor, legal and
      accounting fees.

 (5)  Represents an adjustment to fair market value of the property and
      equipment acquired.

 (6)  Represents the excess of cost over the fair value of the net tangible
      assets acquired in connection with the acquisition of Pet Practice.

 (7)  Adjustment to reflect the elimination of Pet Practice's stockholders'
      equity in connection with the acquisition.

 (8)  Represents the issuance of approximately 3,273,000 shares of VCA Common
      Stock in connection with the acquisition assuming the average closing
      price of VCA Common Stock, for purposes of computing the exchange ratio,
      is $26.375 per share.

 (9)  To reclassify Pet Practice balances to conform with VCA's presentation.

                                      120

<PAGE>
 
 VCA, PET PRACTICE AND PETS' RX

      The following unaudited pro forma financial data and explanatory notes
 give effect to the combination of VCA (as adjusted for the acquisitions of the
 VCA Acquired Companies, the VCA Pending Acquisitions and the issuance of the
 Debentures), Pet Practice (as adjusted for the acquisitions of the Pet Practice
 Acquired Companies) and Pets' Rx.  The combination with Pet Practice is
 reflected as a purchase and the combination with Pets' Rx is reflected as a
 pooling of interests.  The unaudited pro forma combined financial data should
 be read in conjunction with the historical Consolidated Financial Statements
 and Notes thereto of VCA, Pet Practice and Pets' Rx and the unaudited pro forma
 financial data of VCA and Pet Practice which are included elsewhere in this
 Joint Proxy Statement/Prospectus.

      This unaudited pro forma data have been prepared utilizing VCA's unaudited
 pro forma financial data, Pet Practice's financial data and the historical
 financial statements of Pets' Rx.  The unaudited pro forma financial data are
 based on the estimates and assumptions set forth in the notes to the unaudited
 pro forma financial data.

      The unaudited pro forma condensed combined statements of operations
 reflecting the combination of VCA, Pet Practice and Pets' Rx represent the
 historical results of operations of VCA for the three years ended December 31,
 1995 and the three months ended March 31, 1996 adjusted to reflect (i) the
 acquisitions of the VCA Acquired Companies, the VCA Pending Acquisitions and
 the Merger with Pet Practice as if such transactions had occurred on January 1,
 1995, and (ii) the acquisition of Pets' Rx as if it had occurred on January 1,
 1993.  The unaudited pro forma condensed combined balance sheet was prepared to
 reflect certain of the transactions as if they had occurred at March 31, 1996.

      Unaudited pro forma financial data are provided for illustrative purposes
 only and are not necessarily indicative of the results of operations or
 financial position that would have occurred if the Merger with Pet Practice and
 the merger with Pets' Rx had been consummated at the beginning of the period,
 nor are they necessarily indicative of future operating results or financial
 position.

                                      121

<PAGE>
 
                         VCA, PET PRACTICE AND PETS' RX

        UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF OPERATIONS
               FOR THE YEARS ENDED DECEMBER 31, 1993, 1994, 1995
                   AND THE THREE MONTHS ENDED MARCH 31, 1996
                     (In thousands, except per share data)
<TABLE>
<CAPTION>
 
                                                                 1993        1994         1995      MARCH 31, 1996
                                                               --------    --------    ---------    --------------
<S>                                                            <C>         <C>         <C>          <C>
Revenues
 Animal hospital............................................    $30,208     $41,484     $159,655           $38,477
 Laboratory.................................................      1,234      10,150       55,405            14,603
 Pet food...................................................                    996        4,756             1,850
 Intercompany sales.........................................       (344)       (759)      (1,852)             (733)
                                                                -------     -------     --------           -------
                                                                 31,098      51,871      217,964            54,197
Direct costs
 Animal hospital............................................     24,714      34,373      134,444            33,346
 Laboratory.................................................      1,192       6,573       34,127             8,983
 Pet food...................................................                    647        3,205             1,160
 Intercompany sales.........................................       (344)       (759)      (1,852)             (733)
                                                                -------     -------     --------           ------- 
                                                                 25,562      40,834      169,924            42,756
Gross profit
 Animal Hospital............................................      5,494       7,111       25,211             5,131
 Laboratory.................................................         42       3,577       21,278             5,620
 Pet food...................................................                    349        1,551               690
                                                                -------     -------     --------           ------- 
                                                                  5,536      11,037       48,040            11,441
Selling, general and administrative.........................      4,916       8,704       23,098             6,361
Depreciation and amortization...............................      1,410       2,065       10,437             2,474
Restructuring charge........................................                               1,086
Writedown of assets.........................................      4,506                    2,148
                                                                -------     -------     --------           ------- 
Operating (loss) income.....................................     (5,296)        268       11,271             2,606
Interest expense, net.......................................        756       1,984        7,533               991
                                                                -------     -------     --------           ------- 
(Loss) income provision before minority interest                 (6,052)     (1,716)       3,738             1,615
 and (benefit) for income taxes.............................
Minority interest in (loss) income of subsidiaries..........       (334)       (540)       3,313             1,371
                                                                -------     -------     --------           -------
 
(Loss) income before (benefit) provision for income taxes        (5,718)     (1,176)         425               244
 and cumulative effect of accounting change.................
(Benefit) provision for income taxes........................       (152)        731        4,425               467
                                                                -------     -------     --------           -------
 
Loss before cumulative effect of accounting change..........     (5,566)     (1,907)      (4,000)             (223)
Cumulative effect of accounting change......................        221
                                                                -------     -------     --------           ------- 
Net loss....................................................    $(5,345)    $(1,907)    $ (4,000)          $  (223)
                                                                =======     =======     ========           =======
Loss per share..............................................    $ (0.90)    $ (0.26)    $  (0.26)          $ (0.01)
                                                                =======     =======     ========           =======
 
Weighted average common shares used
  for computing loss per share..............................      5,966       7,233       15,522            19,451
                                                                =======     =======     ========           ======= 
</TABLE>

                                      122

<PAGE>
 
                         VCA, PET PRACTICE AND PETS' RX

              UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET
                               AT MARCH 31, 1996
                                 (In thousands)
<TABLE>
<CAPTION>
                                                                                                                     VCA, PET   
                                                 VCA AND PET                                                     PRACTICE AND PETS' 
                                              PRACTICE PRO FORMA                              POOLING              RX PRO FORMAT 
                                                 COMBINED (1)          PETS' RX (2)         ADJUSTMENTS              COMBINED  
                                              ------------------       ------------         ----------------     -----------------
<S>                                           <C>                      <C>                  <C>                      <C>
ASSETS
 
Current Assets
 Cash and equivalents.........................  $117,064                  $   251                                      $117,315
 Accounts receivable, net.....................     9,679                      178                                         9,857
 Other current assets.........................    10,598                      480                                        11,078
                                                --------                  -------               -------                -------- 
                                                 137,341                      909                                       138,250
Property and equipment, net...................    31,985                    3,993                                        35,978
Other assets:
 Notes receivable.............................     1,183                      100                                         1,283
 Goodwill.....................................   175,838                    8,872                (3,116)(3)             181,594
 Covenants....................................     6,328                      438                  (159)(3)               6,607
 Other........................................     6,014                      269                                         6,283
                                                --------                  -------               -------                --------  
                                                $358,689                  $14,581               $(3,275)               $369,995
                                                ========                  =======               =======                ======== 
 
LIABILITIES AND STOCKHOLDERS'
 EQUITY (DEFICIT)
Current liabilities:
 Current portion of long-term debt............  $ 11,840                  $ 1,167                                      $ 13,007
 Accounts payable.............................     7,984                    1,061                                         9,045
 Other accrued liabilities....................    11,055                    1,217                                        12,272
                                                --------                  -------               -------                --------  
                                                  30,879                    3,445                                        34,324
Long-term obligations, less current portion...   132,722                    9,219                                       141,941
Deferred income taxes.........................     1,538                                                                  1,538
Minority interest.............................     4,843                      269                                         5,112
Redeemable convertible preferred stock........                              2,947               $(2,947)(4)
Stockholders' equity (deficit)................   188,707                   (1,299)                 (328)(3)(4)          187,080
                                                --------                  -------               -------                --------  
                                                $358,689                  $14,581               $(3,275)               $369,995
                                                ========                  =======               =======                ======== 
</TABLE>

                                      123
<PAGE>
 
                                 PETS' RX, INC.

                  CONDENSED COMBINED STATEMENTS OF OPERATIONS
               FOR THE YEARS ENDED DECEMBER 31, 1993, 1994, 1995
             AND THE THREE MONTHS ENDED MARCH 31, 1996 (UNAUDITED)
                     (In thousands, except per share data)
<TABLE>
<CAPTION>
 
                                                   1993        1994        1995      MARCH 31, 1996
                                              -----------    --------    --------    --------------
 
<S>                                              <C>         <C>         <C>         <C>
Revenues......................................    $ 5,785     $ 9,638     $15,622            $4,228
Direct costs..................................      5,237       8,779      13,236             3,507
                                                  -------     -------     -------            ------
Gross profit..................................        548         859       2,386               721
Selling, general and administrative...........      1,054       1,777       2,203               530
Depreciation and amortization.................        562         919       1,200               307
Writedown of assets...........................        123
                                                  -------     -------     -------            ------ 
Operating loss................................     (1,191)     (1,837)     (1,017)             (116)
Interest expense, net.........................        331         968         910               217
                                                  -------     -------     -------            ------ 
Loss before minority interest.................     (1,522)     (2,805)     (1,927)             (333)
Minority interest in income of subsidiaries...                                 50                25
                                                  -------     -------     -------            ------
Net loss......................................    $(1,522)    $(2,805)    $(1,977)           $ (358)
                                                  =======     =======     =======            ======
                 
Loss per share................................    $ (0.85)    $ (0.46)    $ (0.32)           $(0.06)
                                                  =======     =======     =======            ====== 
 
 
Weighted average common shares used               
  for computing loss per share................      1,793       6,069       6,266             6,267
                                                  =======     =======     =======            ======  
</TABLE>

                                      124

<PAGE>
 
                         VCA, PET PRACTICE AND PETS' RX

           NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL
                                   STATEMENTS

 (1) Represents the historical financial position of VCA and the Pet Practice
     combined as if the purchase of Pet Practice took place on March 31, 1996.

 (2) Represents the historical financial position of Pets' Rx at March 31, 1996.

 (3) To reflect the write down of assets, amounting to $3.9 million, related to
     conforming the Pets' Rx method for evaluating the impairment of long lived
     assets to VCA's method net of an adjustment of $632,000 to reflect the
     reclassification of certain intangibles to conform to VCA policy.  VCA uses
     an estimate of the related facility's undiscounted net income over the
     remaining life of the goodwill and other intangibles in measuring whether
     the goodwill is recoverable.

 (4) Represents the exchange of the redeemable convertible preferred stock as
     part of the Pets' Rx merger.

                                      125

<PAGE>
 
                       DESCRIPTION OF VCA CAPITAL STOCK


          The total number of shares that VCA is authorized to issue is
 31,000,000, consisting of 30,000,000 shares of VCA Common Stock, par value
 $0.001 per share, and 1,000,000 shares of Preferred Stock, par value $0.001 per
 share ("VCA Preferred Stock"). The following statements are brief summaries of
 certain provisions relating to VCA's capital stock.

 COMMON STOCK

          The holders of VCA Common Stock are entitled to one vote for each
 share held of record on all matters to be voted on by the VCA stockholders. The
 holders of VCA Common Stock are entitled to receive ratably dividends when, as
 and if declared by the VCA Board out of funds legally available therefor. In
 the event of a liquidation, dissolution or winding up of VCA, the holders of
 VCA Common Stock are entitled to share ratably in all assets remaining
 available for distribution to them after payment of liabilities and after
 provision is made for each class of stock, if any, having preference over the
 VCA Common Stock.

          The holders of VCA Common Stock, as such, have no conversion,
 preemptive or other subscription rights and there are no redemption provisions
 applicable to the VCA Common Stock. All the outstanding shares of VCA Common
 Stock are validly issued, fully paid and nonassessable.

          VCA distributes periodic reports and other information, including
 notices of annual meetings and special meetings of the stockholders of VCA, to
 recordholders of VCA Common Stock at the addresses indicated on VCA's stock
 records.

 REDEEMABLE WARRANTS

          At May 20, 1996 there were 1,129,011 shares of VCA Common Stock
 issuable upon exercise of outstanding warrants (the "Redeemable Warrants"). The
 Redeemable Warrants were issued in registered form pursuant to an agreement,
 dated October 10, 1991 (the "Warrant Agreement"), between VCA and Continental
 Stock Transfer & Trust Company (the "Warrant Agent").  The following discussion
 of certain terms and provisions of the Redeemable Warrants is qualified in its
 entirety by reference to the detailed provisions of the Warrant Agreement.

          One Redeemable Warrant represents the right of the registered holder
 to purchase one share of VCA Common Stock at an exercise price of 120% of the
 initial offering price of VCA Common Stock per share, subject to adjustment
 (the "Purchase Price").  The Redeemable Warrants are entitled to the benefit of
 adjustments in the Purchase Price and in the number of shares of VCA Common
 Stock and/or other securities deliverable upon the exercise thereof in the
 event of a stock dividend, stock split, reclassification, reorganization,
 consolidation or merger.  VCA has the right to reduce the Purchase Price or
 increase the number of shares of VCA Common Stock issuable upon the exercise of
 the Redeemable Warrants.

          Unless previously redeemed, the Redeemable Warrants may be exercised
 at any time commencing April 10, 1992 and prior to the close of business on
 October 10, 1996 (the "Expiration Date").  On and after the Expiration Date,
 the Redeemable Warrants become wholly void and of no value.  VCA may at any
 time extend the Expiration Date of all outstanding Redeemable Warrants for such
 increased period of time as it may determine.  The Redeemable Warrants may be
 exercised at the office of the Warrant Agent.

          VCA has the right at any time after April 10, 1992 to redeem the
 Redeemable Warrants in whole for cancellation at a price of $0.20 each, by
 written notice mailed 30 days prior to the redemption date to each Redeemable
 Warrant holder at his address as it appears on the books of the Warrant Agent.
 Such notice may be given within ten days following any period of 20 consecutive
 trading days during which the high closing bid of the shares of VCA Common
 Stock on the Nasdaq National Market exceeds a per share price equal to $9.00
 (150% of the initial public offering price of the VCA Common Stock), subject to
 adjustments for stock dividends, stock splits and the like.  If the Redeemable
 Warrants are called for redemption, they must be exercised prior to the close
 of business on the date of any such redemption or the right to purchase the
 applicable shares of VCA Common Stock is forfeited.

                                      126

<PAGE>
 
          No holder, as such, of Redeemable Warrants is entitled to vote or
 receive dividends or be deemed the holder of shares of VCA Common Stock for any
 purpose whatsoever until such Redeemable Warrants have been duly exercised and
 the Purchase Price has been paid in full.

          If required, VCA will file a new registration statement with the
 Commission with respect to the securities underlying the Redeemable Warrants
 prior to the exercise of the Redeemable Warrants and deliver a prospectus with
 respect to such securities to all Redeemable Warrant holders as required by
 Section 10(a)(3) of the Act.

 VCA PREFERRED STOCK

          The VCA Board has the authority to issue the authorized and unissued
 VCA Preferred Stock in one or more series with such designations, rights and
 preferences as may be determined from time to time by the VCA Board.
 Accordingly, the VCA Board is empowered, without stockholder approval, to issue
 VCA Preferred Stock with dividend, liquidation, conversion, voting or other
 rights which could adversely affect the voting power or other rights of the
 holders of VCA Common Stock.

          On December 22, 1992, VCA completed the sale of 583,333 shares of
 Series A Convertible Preferred Stock, par value $0.001 per share (the "Series A
 Shares"), for net proceeds of $2,985,000.  The Series A Shares are convertible
 into 583,333 shares of VCA Common Stock commencing December 22, 1997.  The
 Series A Shares participate in any dividend payments on VCA Common Stock on an
 as converted basis.  The Series A Shares have a liquidation preference of $5.14
 per share and are callable by VCA any time after March 22, 1998 at a price of
 $5.14 per share.  The Series A Shares have no voting rights, other than certain
 protective rights in the event of an adverse change in the rights, preferences
 or privileges of the Series A Shares as provided by the DGCL.

          As a result of the issuance of the Series A Shares, 416,667 shares of
 VCA Preferred Stock remain authorized and unissued and may be issued in one or
 more series with such designations, rights and preferences as may be determined
 from time to time by the VCA Board.  In the event of issuance, the VCA
 Preferred Stock could be utilized under certain circumstances as a way of
 discouraging, delaying or preventing an acquisition or change in control of
 VCA. VCA does not currently intend to issue any shares of VCA Preferred Stock.

 VRI WARRANTS

          In connection with the formation of Vet Research, VCA issued warrants
 to purchase 363,636 shares of VCA Common Stock at $11.00 per share (the "VRI
 Warrants").  At May 20, 1996, there were 179,636 shares of VCA Common Stock
 issuable upon exercise of outstanding VRI Warrants.  The warrants were
 purchased at $0.001 per share and are exercisable until the fifth day following
 the last day upon which VCA is permitted to close the purchase of VRI's
 interest in Vet Research pursuant to the VCA Option Agreement.  On April 26,
 1995, VCA filed a Registration Statement on Form S-3 with respect to the shares
 of VCA Common Stock issuable upon exercise of the VRI Warrants.  Holders of the
 VRI Warrants agreed to a restriction upon the sale of any shares issuable upon
 exercise of the VRI Warrants which will lapse with respect to 50,000 shares
 issuable to each of the two holders upon exercise of the VRI Warrants at the
 time of exercise and with respect to an additional 50,000 shares every 90 days
 thereafter, but which in any event will lapse entirely on April 30, 1997.

 DEBENTURES

          On April 17, 1996, VCA issued the Debentures which mature on May 1,
 2006.  The Debentures become convertible into shares of VCA Common Stock on
 July 27, 1996 initially at a conversion price of $34.35 per share (equivalent
 to approximately 29.11 shares of VCA Common Stock for each $1,000 principal
 amount of Debentures).  VCA has agreed to file a registration statement
 relating to the resale of the Debentures and the shares of VCA Common Stock
 issuable on conversion of the Debentures no later than August 15, 1996.

 ANTI-TAKEOVER PROVISIONS

          VCA's Certificate of Incorporation and bylaws include a number of
 provisions which may have the effect of discouraging persons from pursuing non-
 negotiated takeover attempts.  These provisions include a classified board of
 directors, the inability of stockholders to take action by written consent
 without a meeting, the inability of stockholders to call for a special

                                      127

<PAGE>
 
 meeting of stockholders under certain circumstances without the approval of the
 board and the inability of stockholders to remove directors without cause. The
 Certificate of Incorporation also contains a provision that requires a 66 2/3
 percent vote to amend any of the previously discussed provisions.  In addition,
 the availability of a large number of shares of VCA Common Stock and VCA
 Preferred Stock for issuance by the VCA Board without further stockholder
 approval could have the effect of making it more difficult, and thereby
 discouraging, a merger, tender offer, proxy contest or assumption of control
 and change of incumbent management.  Further, H.J. Heinz Company has an option
 to purchase VCA's interest in the Vet's Choice joint venture upon the
 occurrence of a change in control (as defined in the joint venture agreement).

 SECTION 203 OF THE DGCL

          VCA is a Delaware corporation and is subject to Section 203 of the
 DGCL.  Section 203 of the DGCL prevents an "interested stockholder" (defined
 generally as a person owning 15% or more of a corporation's outstanding voting
 stock or an affiliate of such person) from engaging in a "business combination"
 (as defined) with a Delaware corporation for three years following the date
 such person became an interested stockholder unless (i) before such person
 became an interested stockholder, the board of directors of the corporation
 approved the transaction in which the interested stockholder became an
 interested stockholder or approved the business combination; (ii) upon
 consummation of the transaction that resulted in the interested stockholder
 becoming an interested stockholder, the interested stockholder owns at least
 85% of the voting stock of the corporation outstanding at the time the
 transaction commenced (excluding stock held by directors who are also officers
 of the corporation and employee stock plans that do not provide employees with
 the right to determine confidentially whether shares held subject to the plan
 will be tendered in a tender or exchange offer); or (iii) following the
 transaction in which such person became an interested stockholder, the business
 combination is approved by the board of directors of the corporation and
 authorized at a meeting of stockholders by vote of the holders of two-thirds of
 the outstanding voting stock of the corporation not owned by the interested
 stockholder. Under Section 203 of the DGCL, the restrictions described above
 also do not apply to certain business combinations proposed by an interested
 stockholder following the announcement or notification of one of certain
 extraordinary transactions involving the corporation and a person who had not
 been an interested stockholder during the previous three years or became an
 interested stockholder with the approval of a majority of the corporation's
 directors. The provisions of Section 203 of the DGCL requiring a super majority
 vote of disinterested shares to approve certain corporate transactions could
 enable a minority of VCA's stockholders to exercise veto power over such
 transactions.

 TRANSFER AGENT

          VCA's transfer and warrant agent is Continental Stock Transfer & Trust
 Company, 2 Broadway, New York, New York 10004.

                       COMPARISON OF STOCKHOLDERS' RIGHTS

          At the Effective Time, the stockholders of Pet Practice will become
 stockholders of VCA, and their rights will be governed by the DGCL and VCA's
 Certificate of Incorporation (the "VCA Certificate") and bylaws (the "VCA
 Bylaws").  The following discussion is not intended to be complete and is
 qualified in its entirety by reference to the DGCL, the VCA Certificate, the
 VCA Bylaws, Pet Practice's Certificate of Incorporation (the "Pet Practice
 Certificate") and bylaws (the "Pet Practice Bylaws").  The VCA Certificate and
 VCA Bylaws are incorporated by reference herein and will be sent to holders of
 shares of Pet Practice Common Stock upon request.  See "INCORPORATION OF
 CERTAIN DOCUMENTS BY REFERENCE."

          Since both VCA and Pet Practice are organized under the laws of the
 State of Delaware, any differences in the rights of holders of VCA Common Stock
 and Pet Practice Common Stock will arise solely from differences in their
 respective Certificates and Bylaws.  The VCA Certificate and VCA Bylaws are
 substantially similar to the Pet Practice Certificate and Bylaws, respectively,
 except for certain matters as described herein.

          Authorized Capital.  The total number of authorized shares of capital
 stock of VCA is 31,000,000 shares, consisting of 30,000,000 shares of VCA
 Common Stock and 1,000,000 shares of VCA Preferred Stock.  If the Certificate
 Proposal is approved at the VCA Annual Meeting, the number of authorized shares
 of VCA Common Stock will increase to 75,000,000 shares.  The total number of
 authorized shares of capital stock of Pet Practice is 21,000,000 shares,
 consisting of 20,000,000 shares of Pet Practice Common Stock and 1,000,000
 shares of preferred stock, $.01 par value per share.

                                      128

<PAGE>
 
          Directors.  The VCA Bylaws provide that the number of directors shall
 not be less than three and no more than nine persons.  The Pet Practice Bylaws
 provide that the number of directors shall be no fewer than one and no more
 than 12 persons.

          The VCA Certificate establishes three classes of directors, as nearly
 equal in number of directors as possible, with each director elected for a term
 expiring at the third succeeding annual meeting of stockholders after his or
 her election.  The Pet Practice Board is not divided into separate classes.
 Each Pet Practice director serves until the next annual meeting of stockholders
 after his or her election.

          The VCA Bylaws provide for a quorum of a majority of the total number
 of its directors.  The Pet Practice Bylaws provide for a quorum of one-third of
 the Pet Practice Board.

          Removal of Directors.  The VCA Bylaws provide that any director may be
 removed, for cause only, by a vote of the majority of the outstanding shares
 entitled to vote in connection with the election of such director, regardless
 of class, voting together as a class.  The Pet Practice Bylaws provide that any
 director may be removed by the affirmative vote of a majority of the shares of
 stock entitled to vote at the meeting to remove such director.

          Filling Vacancies on the Board of Directors.  The VCA Bylaws provide
 that any vacancy on the VCA Board, however resulting, shall be filled only by a
 majority of the directors then in office, although less than a quorum, or by a
 sole remaining director, and not by the stockholders.  The Pet Practice Bylaws
 provide that any vacancy in the office of a director occurring for any reason
 other than removal by the stockholders may be filled by a majority of the
 directors then in office or by a sole remaining director.  With respect to a
 vacancy created by the removal of a director by the stockholders, such vacancy
 shall be filled by the stockholders at a meeting of stockholders called for
 that purpose.

          Stockholder Action Without a Meeting.  Under the VCA Certificate, no
 action may be taken by the stockholders except at a meeting.  Under the Pet
 Practice Bylaws, the stockholders may act by written consent executed by
 holders of outstanding capital stock having not less than the minimum number of
 votes that would be necessary to authorize or take such action at a meeting at
 which all shares entitled to vote thereon were present and voted.

          Business Combinations.  Under Section 203 of the DGCL ("Section 203"),
 certain "business combinations" with "interested stockholders" (as each term is
 defined in Section 203) of Delaware corporations are subject to a three- year
 moratorium unless specified conditions are met.  The provisions of Section 203
 apply to VCA but do not apply to Pet Practice because in the Pet Practice
 Certificate, Pet Practice elected not to be subject to the provisions of
 Section 203.

          Anti-takeover Provisions.  The VCA Certificate and Bylaws include a
 number of provisions which may have the effect of discouraging persons from
 pursuing non-negotiated takeover attempts.  These provisions include a
 classified board of directors, the inability of stockholders to take action by
 written consent without a meeting, the inability of stockholders to call for a
 special meeting of stockholders under certain circumstances without the
 approval of the board and the inability of stockholders to remove directors
 without cause.  The VCA Certificate also contains a provision that requires a
 66 2/3 percent vote to amend any of the previously discussed provisions.  In
 addition, the availability of a large number of shares of VCA Common Stock and
 VCA Preferred Stock for issuance by the VCA Board without further stockholder
 approval could have the effect of making it more difficult, and thereby
 discouraging, a merger, tender offer, proxy contest or assumption of control
 and change of incumbent management.  Further, H.J. Heinz Company has an option
 to purchase VCA's interest in the Vet's Choice joint venture upon the
 occurrence of a change in control (as defined in the joint venture agreement).

                                      129

<PAGE>
 
                         ELECTION OF CLASS II DIRECTORS


          In accordance with the VCA Certificate and the VCA Bylaws, the VCA
 Board is divided into three classes.  At each Annual Meeting of Stockholders of
 VCA, directors constituting one class are elected for three-year terms.  The
 VCA Bylaws provide that the VCA Board shall consist of not less than three and
 no more than nine members as determined from time to time by the VCA Board.
 The VCA Board currently consists of two Class I Directors, with terms expiring
 in 1997, two Class II Directors, with terms expiring in 1996, and two Class III
 Directors, with terms expiring in 1998.  At the VCA Annual Meeting, two Class
 II Directors will be elected for terms expiring at the 1999 VCA Annual Meeting.
 If the number of directors is changed, any increase or decrease is to be
 apportioned among the classes so as to maintain the number of directors in each
 class as nearly equal as possible.  Directors may be removed only with cause by
 the vote of a majority of the stockholders then entitled to vote.

          Unless otherwise instructed, the proxy holders will vote the proxies
 received by them for the nominees named below.  If either nominee is unable or
 unwilling to serve as a director at the time of the VCA Annual Meeting or any
 postponements or adjournments thereof, the proxies will be voted for such
 nominee as shall be designated by the current VCA Board to fill the vacancy.
 VCA has no reason to believe that either nominee will be unwilling or unable to
 serve if elected as a director.

 THE VCA BOARD UNANIMOUSLY RECOMMENDS A VOTE "FOR" THE ELECTION OF THE NOMINEES
 LISTED BELOW

          The VCA Board proposes the election of the following nominees as Class
 II Directors:

                                  Neil Tauber
                            John B. Chickering, Jr.

          If elected, each nominee is expected to serve until the 1999 VCA
 Annual Meeting of Stockholders.  The affirmative vote of a plurality of the
 shares present in person or represented by proxy at the VCA Annual Meeting and
 voting on the election of the Class II Directors, is required for the election
 of the above named nominees.

 INFORMATION WITH RESPECT TO NOMINEES, CONTINUING DIRECTORS AND EXECUTIVE
 OFFICERS

          The following table sets forth certain information with respect to the
 nominees, continuing directors and executive officers of VCA as of March 31,
 1996.  See "BUSINESS OF VCA -- Executive Officers and Directors."

<TABLE>
<CAPTION>
                                                                                                            
                                                                                                         Year Term
           Name              Age                          Principal Occupation                            Expires
           ----              ---                          --------------------                            -------
<S>                          <C>                          <C>                                             <C> 
 
NOMINEES:

Neil Tauber                   45   Senior Vice President of VCA                                              1996
John B. Chickering, Jr.       47   Private Investor                                                          1996
 
CONTINUING
   DIRECTORS:
Robert L. Antin               46   Chairman of the Board and Chief Executive Officer of VCA                  1997
Richard Gillespie             62   Private Investor                                                          1997
Arthur J. Antin               49   Chief Operating Officer, Senior Vice President, and Secretary of          1998
                                   VCA
John A. Heil                  42   Vice President - Marketing for Heinz Pet Products                         1998
 
OTHER EXECUTIVE
   OFFICERS:
Tomas W. Fuller               38   Chief Financial Officer and Vice President and Assistant Secretary
Deborah W. Moore              31   Chief Accounting Officer, Vice President and Controller
</TABLE>

                                      130

<PAGE>
 
     The executive officers of VCA are appointed by and serve at the discretion
of the VCA Board. Robert L. Antin and Arthur J. Antin are brothers. There are no
other family relationships between any director and/or any executive officer of
VCA.


             PROPOSAL TO APPROVE AN AMENDMENT TO THE CERTIFICATE OF
                              INCORPORATION OF VCA
        TO INCREASE THE AUTHORIZED NUMBER OF SHARES OF VCA COMMON STOCK
                            AND VCA PREFERRED STOCK

 THE AMENDMENT

       On January 22, 1996, the VCA Board adopted resolutions approving and
 recommending that the stockholders adopt an amendment to Article Fourth of the
  VCA Certificate to increase the authorized VCA Common Stock from 30,000,000
shares to 75,000,000 shares, and to increase the authorized VCA Preferred Stock
from 1,000,000 shares to 2,000,000 shares.  The relative rights and limitations
   of the VCA Common and VCA Preferred Stock would remain unchanged under the
   amendment.  The VCA Common and VCA Preferred Stock do not have preemptive
                                    rights.

    At May 20, 1996, VCA had 13,179,882 shares of VCA Common Stock issued and
 outstanding and 583,333 shares of VCA Preferred Stock issued and outstanding.
  In addition, VCA has reserved: (i) 1,498,404 shares of VCA Common Stock for
 issuance to employees, officers, directors, and consultants of VCA pursuant to
options, (ii) 1,308,647 shares of VCA Common Stock for issuance upon exercise of
 outstanding warrants, (iii) 6,635 shares of VCA Common Stock for issuance upon
  conversion of convertible notes, (iv) 583,333 shares of VCA Common Stock for
  issuance upon conversion of VCA Preferred Stock, (v) 2,457,060 shares of VCA
 Common Stock for issuance upon conversion of the Debentures, and (vi) 159,197
  shares of VCA Common Stock for certain acquisitions.  Thus, at May 20, 1996,
  there were 10,966,039 authorized shares of VCA Common Stock unissued and not
 reserved for issuance.  If the proposed mergers with Pets' Rx and Pet Practice
are consummated, there will be approximately 6,892,000 authorized shares of VCA
              Common Stock unissued and not reserved for issuance.

  The proposed increase in the authorized VCA Common Stock has been recommended
by the VCA Board to assure that an adequate supply of authorized unissued shares
  is available for general corporate needs, such as future stock dividends or
 stock splits or the issuance of shares under VCA's stock incentive plans.  The
  additional authorized shares of VCA Common Stock could also be used for such
 purposes as raising additional capital for the operations of VCA or financing
the acquisition of other animal hospitals and veterinary diagnostic laboratories
   or related businesses.  In addition, the availability of a large number of
shares of VCA Common Stock and VCA Preferred Stock for issuance by the VCA Board
  without further stockholder approval could have the effect of making it more
 difficult, and thereby discouraging, a merger, tender offer, proxy contest or
 assumption of control and change of incumbent management.  See "DESCRIPTION OF
     VCA CAPITAL STOCK--Anti-takeover Provisions" for a discussion of other
  antitakeover provisions applicable to VCA.  There currently are no plans or
  arrangements relating to the issuance of any of the additional shares of VCA
                    Common Stock proposed to be authorized.

   If the Proposal is adopted, the amended portion of Article Fourth of the VCA
                       Certificate will read as follows:

            FOURTH: The total number of shares which the Corporation shall have
            -------                                                            
            authority to issue is 77,000,000, consisting of 75,000,000 shares of
            common stock, par value $0.001 per share (the "Common Stock") and
            2,000,000 shares of preferred stock, par value $0.001 per share (the
            "Preferred Stock").

         The only changes in Article Fourth which will be effected if the
 Proposal is approved are changes to the three numbers set forth in bold face
 type above.  Presently, Article Fourth provides that the shares of all classes
 of stock which VCA may issue is 31,000,000, 30,000,000 of which are shares of
 VCA Common Stock and 1,000,000 of which are shares of VCA Preferred Stock.  All
 other provisions of Article Fourth will remain unchanged.

                                      131

<PAGE>
 
 CERTAIN EFFECTS OF THE PROPOSED AMENDMENT

         The VCA Board believes that approval of the Proposal is essential for
 the growth and development of VCA.  However, the following should be considered
 by a stockholder in deciding how to vote upon this Proposal.

         The Proposal, if approved, would strengthen the position of the VCA
 Board and might make the removal of the VCA Board more difficult, even if such
 removal would be generally beneficial to VCA's stockholders.  The authorization
 to issue the additional shares of VCA Common Stock would provide the VCA Board
 with a capacity to negate the efforts of unfriendly tender offerors through the
 issuance of securities to others who are friendly or desirable to the VCA
 Board.

         The Proposal is not the result of the VCA Board's knowledge of any
 specific effort to accumulate VCA's securities or to obtain control of VCA by
 means of a merger, tender offer, proxy solicitation in opposition to management
 or otherwise.  VCA is not submitting the Proposal to enable it to frustrate any
 efforts by another party to acquire a controlling interest or to seek
 representation on the VCA Board.  The submission of the Proposal is not a part
 of any plan by VCA's management to adopt a series of amendments to the VCA
 Certificate or Bylaws so as to render the takeover of VCA more difficult.

         The additional shares which the VCA Board would be authorized to issue
 upon approval of the Proposal, if so issued, would have a dilutive effect upon
 the percentage of equity of VCA owned by present stockholders.  The issuance of
 such additional shares might be disadvantageous to current stockholders in that
 any additional issuances would potentially reduce per share dividends, if any.
 Stockholders should consider, however, that the possible impact upon dividends
 is likely to be minimal in view of the fact that VCA has never paid dividends,
 has never adopted any policy with respect to the payment of dividends and does
 not intend to pay any cash dividends in the foreseeable future.  VCA instead
 intends to retain earnings, if any, for use in financing growth and additional
 business opportunities.

 RECOMMENDATION AND VOTE.

         The VCA Board has unanimously approved the amendment of the VCA
 Certificate to increase the authorized number of shares of VCA Common Stock and
 VCA Preferred Stock.  The affirmative vote of a majority of the outstanding
 shares of VCA Common Stock is required for the approval of the adoption of such
 amendment to the VCA Certificate.  Unless marked otherwise, proxies received
 will be voted for the adoption of such amendment to the VCA Certificate.

 THE VCA BOARD UNANIMOUSLY RECOMMENDS A VOTE "FOR" THE ADOPTION OF THE AMENDMENT
 TO THE VCA CERTIFICATE TO INCREASE THE AUTHORIZED NUMBER OF SHARES OF VCA
 COMMON STOCK AND VCA PREFERRED STOCK.


                    PROPOSAL TO APPROVE THE ADOPTION OF THE
                         VCA 1996 STOCK INCENTIVE PLAN

 INTRODUCTION

         The proposed VCA 1996 Stock Incentive Plan (the "1996 Plan") was
 adopted by the VCA Board effective as of November 7, 1995, subject to the
 approval of the 1996 Plan by the stockholders.  The 1996 Plan supplements VCA's
 1987, 1991 and 1995 stock incentive plans and provides for the issuance of
 options to purchase shares of the VCA Common Stock ("Shares") to selected
 directors, officers, employees and consultants of VCA and its subsidiaries.
 Subject to adjustment for stock splits, stock dividends and other similar
 events, the total number of Shares reserved for issuance under the 1996 Plan
 shall be 1,500,000 Shares.  As of the VCA Record Date, options to purchase
 57,888 Shares had been granted to eligible employees (none of whom were
 officers) of VCA pursuant to the terms of the 1996 Plan, subject to the
 approval of the 1996 Plan by the stockholders, at an exercise price of $12.375
 per Share.

         The following sections summarize the principal features of the 1996
 Plan, a copy of which is attached as Appendix D to this Joint Proxy
                                      -------- -                    
 Statement/Prospectus.  Although this Joint Proxy Statement/Prospectus contains
 a summary of the principal

                                      132

<PAGE>
 
 features of the 1996 Plan, this summary is not intended to be complete and
 reference should be made to Appendix D to this Joint Proxy Statement/Prospectus
                             -------- -                                         
 for the complete text of the 1996 Plan.

 PURPOSE

         The purpose of the 1996 Plan is to advance the interests of VCA and its
 stockholders by strengthening VCA's and its subsidiaries' ability to obtain and
 retain the services of the types of employees, consultants, officers and
 directors who will contribute to VCA's long term success and to provide
 incentives which are linked directly to increases in stock value which will
 inure to the benefit of all stockholders of VCA.

 ADMINISTRATION

         The 1996 Plan will be administered by a committee of the VCA Board (the
 "Committee"), each member of which is a non-employee member of the VCA Board, a
 Disinterested Person (as defined in Rule 16b-3 promulgated under the Exchange
 Act), and an Outside Director (as defined in Section 162(m) of the Code.)

 ELIGIBILITY AND NONDISCRETIONARY GRANTS

         The 1996 Plan provides that options may be granted to non-employee
 directors who are designated as eligible persons by the VCA Board, other non-
 employee directors (subject to the limitations described below), officers
 (including officers who are directors), employees and consultants of VCA and
 its subsidiaries.  The Committee will determine the persons to be selected as
 optionees, the terms of vesting of options and the number of Shares to be
 subject to each option.  Non-employee directors shall be entitled to receive
 the following: (i) the nondiscretionary grant of a non-statutory option to
 purchase 10,000 Shares upon the non-employee director's election or appointment
 to the VCA Board, and (ii) for so long as the non-employee director remains on
 the VCA Board, an annual nondiscretionary grant on the date of VCA's annual
 meeting of stockholders of non-statutory options to purchase 5,000 Shares.
 Unless designated "eligible persons," non-employee directors are not eligible
 for additional grants.  All options granted to the non-employee directors shall
 have an exercise price equal to 100% of the fair market value of the Shares on
 the date of grant and shall vest in 12 equal monthly installments.

         If the VCA stockholders approve the 1996 Plan, the group identified
 below will receive the number of shares set forth opposite its name.

<TABLE>
<CAPTION>
 
               NAME AND POSITION                                NUMBER OF SHARES  
               -----------------                                ----------------  
               <S>                                              <C>               
               Chief Executive Officer                                 0          
               Current Executive Officers                              0          
               Current Directors who are not Executive          
               Officers                                                0                           
               All employees, excluding executive officers           57,888       
 
</TABLE>

TERMS OF OPTIONS

      The terms of options granted under the 1996 Plan are determined by the
Committee. In the sole and absolute discretion of the Committee, such options
may be either "incentive stock options" within the meaning of Section 422 of the
Code ("ISOs"), or non-statutory options. However, to the extent that the
aggregate market value of the Shares with respect to which ISOs are exercisable
for the first time by any individual under the 1996 Plan and all other incentive
plans of VCA and any parent or subsidiary of VCA during any calendar year
exceeds $100,000, such options shall not be treated as ISOs. In addition, no
participant shall be granted options with respect to more than 500,000 Shares
during any one year period. Each option will be evidenced by an option agreement
between VCA and the optionee to whom such option is granted on such terms and
conditions as shall be determined by the Committee from time to time. The terms
of the option agreements need not be identical. Each option is, however, subject
to the following terms and conditions:

                                      133

<PAGE>
 
     Exercise of the Option. The Committee determines when options granted under
the 1996 Plan may be exercisable. An option is exercised by giving written
notice of exercise to VCA, specifying the number of full Shares to be purchased,
and tendering payment of the purchase price. Payment for Shares issued upon
exercise of an option may be made by cash, by cashier's check or certified
check, by surrender of previously owned Shares (if the Committee authorizes
payment in Shares and such Shares have been held for at least six months), by
surrender of the number of Shares issuable upon exercise of the stock option
having a fair market value on the date of exercise equal to the option exercise
price (if the Committee authorizes such method of payment), or by any
combination thereof or any other form of legal consideration acceptable to the
Committee. The 1996 Plan provides that, upon the recommendation of the
Committee, VCA may loan optionees the funds necessary to exercise their options.

     Option Price. The ISO exercise price shall equal or exceed the fair market
value of the Shares on the date the option is granted. The exercise price for
ISOs granted to individuals beneficially holding at least 10% of the outstanding
securities of VCA shall equal or exceed 110% of the fair market value of Shares
on the date the option is granted.

     Termination of Options. All options granted under the 1996 Plan expire ten
years from the date of grant, or such shorter period as is determined by the
Committee. No option is exercisable by any person after such expiration. If an
option expires, terminates or is canceled in full, the Shares not purchased
thereunder may again be available for option.

     Non-transferability of Options. An option is not transferable by the
optionee otherwise than by will or the laws of descent and distribution and is
exercisable during the optionee's lifetime only by the optionee, his or her
guardian or legal representative.

     Other Provisions. The option agreement may contain such other terms,
provisions and conditions not inconsistent with the 1996 Plan as may be
determined by the Committee.

                   ADJUSTMENTS UPON CHANGES IN CAPITALIZATION

     The 1996 Plan and each option granted thereunder contain provisions for
appropriate adjustments in the exercise price per Share (but not the total
price) and the number of Shares subject to the option in the event of any change
in the number of issued Shares which results from a split-up or consolidation of
Shares, payment of a Share dividend, a recapitalization or other like capital
adjustment. Options may provide for acceleration of vesting upon a change of
control. Alternatively, the Committee has the right, in its sole discretion, to
accelerate the vesting of options granted pursuant to the 1996 Plan in the event
of such a change in control.

                   AMENDMENT AND TERMINATION OF THE 1996 PLAN

     The VCA Board may amend the 1996 Plan at any time, may suspend it from time
to time or may terminate it without approval of the stockholders; provided,
however, that stockholder approval is required for any amendment which
materially increases the number of Shares for which options may be granted,
materially modifies the requirements of eligibility or materially increases the
benefits which may accrue to optionees under the 1996 Plan. However, no such
action by the VCA Board or stockholders may unilaterally alter or impair any
option previously granted under the 1996 Plan without the consent of the
optionee. In any event, the 1996 Plan shall terminate ten years from the date of
stockholder approval unless sooner terminated by action of the VCA Board.

                  EFFECT OF SECTION 16(B) OF THE EXCHANGE ACT.

     The acquisition and disposition of VCA Common Stock by officers, directors
and more than 10% stockholders of VCA ("Insiders") pursuant to awards granted to
them under the 1996 Plan may be subject to Section 16(b) of the Exchange Act.
Pursuant to Section 16(b), a purchase of VCA Common Stock by an Insider within
six months before or after a sale of VCA Common Stock by the Insider could
result in recovery by VCA of all or a portion of any amount by which the sale
proceeds exceeds the purchase price. Insiders are required to file reports of
changes in beneficial ownership under Section 16(a) of the Exchange Act upon
acquisitions and dispositions of shares. Rule 16b-3 provides an exemption from
Section 16(b) liability for certain transactions pursuant to certain employee
benefit plans. The 1996 Plan is designed to comply with Rule 16b-3.

                                      134

<PAGE>
 
                        FEDERAL INCOME TAX CONSEQUENCES

     The following general discussion of the principal tax considerations is
based upon the tax laws and regulations of the United States existing as of the
date hereof, all of which are subject to modification at any time. The 1996 Plan
does not constitute a qualified retirement plan under Section 401(a) of the Code
(which generally covers trusts forming part of a stock bonus, pension or profit-
sharing plan funded by the employer and/or employee contributions which are
designed to provide retirement benefits to participants under certain
circumstances) and is not subject to the Employee Retirement Income Security Act
of 1974 (the pension reform law which regulates most types of privately funded
pension, profit-sharing and other employee benefit plans).

     Pursuant to Section 162(m) of the Code ("Section 162(m)"), non-performance-
based compensation in excess of $1 million to certain senior executives of
public companies is not deductible by such public companies. Performance-based
compensation is excluded from applicable employee remuneration for Section
162(m) limitation purposes. The 1996 Plan is intended to qualify as performance-
based compensation which is not subject to the $1 million limitation. In order
for the 1996 Plan to qualify as performance-based compensation under Section
162(m) and therefore be exempt from the $1 million limitation, the 1996 Plan
must be approved by the stockholders of VCA.

     Consequences to Employees: Incentive Stock Options. No income is recognized
for federal income tax purposes by an optionee at the time an ISO is granted,
and, except as discussed below, no income is recognized by an optionee upon his
or her exercise of an ISO. If the optionee makes no disposition of the Shares
received upon exercise within two years from the date such option is granted or
one year from the date such option is exercised, the optionee will recognize
long-term capital gain or loss when he or she disposes of his or her Shares.
Such gain or loss will be measured by the difference between the exercise price
of the option and the amount received for the Shares at the time of disposition.

     If the optionee disposes of Shares acquired upon exercise of an ISO within
two years after being granted the option or within one year after acquiring the
Shares, any amount realized from such disqualifying disposition will be taxable
as ordinary income in the year of disposition to the extent that the lesser of
(A) the fair market value of the Shares on the date the ISO was exercised or (B)
the fair market value at the time of such disposition, exceeds the ISO exercise
price. Any amount realized upon disposition in excess of the fair market value
of the Shares on the date of exercise will be treated as long-term or short-term
capital gain, depending upon whether the shares have been held for more than one
year.

     The use of stock acquired through exercise of an ISO to exercise an ISO
will constitute a disqualifying disposition if the applicable holding period
requirement has not been satisfied.

     For alternative minimum tax purposes, the excess of the fair market value
of the stock as of the date of exercise over the exercise price of the ISO is
included in computing alternative minimum taxable income.

     Consequences to Employees: Non-statutory Options. No income is recognized
by a holder of non-statutory options at the time non-statutory options are
granted under the 1996 Plan. In general, at the time Shares are issued to a
holder pursuant to exercise of non-statutory options, the holder will recognize
ordinary income equal to the excess of the sum of cash and the fair market value
of the Shares on the date of exercise over the exercise price.

     A holder will recognize gain or loss on the subsequent sale of Shares
acquired upon exercise of non-statutory options in an amount equal to the
difference between the selling price and the tax basis of the Shares, which will
include the price paid plus the amount included in the holder's income by reason
of the exercise of the non-statutory options. Provided the Shares are held as a
capital asset, any gain or loss resulting from a subsequent sale will be long-
term or short-term capital gain or loss depending upon whether the Shares have
been held for more than one year.

     Consequences to VCA: Incentive Stock Options. VCA will not be allowed a
deduction for federal income tax purposes at the time of the grant or exercise
of an ISO. There are also no federal income tax consequences to VCA as a result
of the disposition of Shares acquired upon exercise of an ISO if the disposition
is not a disqualifying disposition. At the time of a disqualifying disposition
by an optionee, VCA will be entitled to a deduction for the amount received by
the optionee to the extent that such amount is taxable to the optionee as
ordinary income.

                                      135

<PAGE>
 
    Consequences to VCA: Non-statutory Options. VCA will be entitled to a
deduction for federal income tax purposes in the year and in the same amount as
the optionee is considered to have realized ordinary income in connection with
the exercise of non-statutory options if provision is made for withholding of
federal income taxes, where applicable.

    Cash Payments. The Committee may authorize VCA to provide cash payments to
holders of non-statutory options to reimburse such persons for the tax they
incur with respect to the exercise of non-statutory options.

                                 REQUIRED VOTE

    The VCA Board has unanimously approved the adoption of the 1996 Plan.  The
affirmative vote of a majority of the Shares present in person or represented by
proxy at the VCA Annual Meeting and voting on the approval of the adoption of
the 1996 Plan is required for the approval of the adoption of the 1996 Plan.
Unless marked otherwise, proxies received will be voted for the adoption of the
1996 Plan.

THE VCA BOARD UNANIMOUSLY RECOMMENDS A VOTE "FOR" THE ADOPTION OF THE APPROVAL
OF THE VCA 1996 STOCK INCENTIVE PLAN


                  PROPOSAL TO APPROVE THE ADOPTION OF THE VCA
                       1996 EMPLOYEE STOCK PURCHASE PLAN

SUMMARY OF PLAN

    The proposed VCA 1996 Employee Stock Purchase Plan (the "Stock Purchase
Plan") was adopted by the VCA Board on January 20, 1996. The Stock Purchase Plan
supplements VCA's stock option plans and provides selected officers, employees
and consultants of VCA and its subsidiaries with an opportunity to purchase
Shares through regular payroll deductions. Subject to adjustment for stock
splits, stock dividends and other similar events, the total number of Shares
reserved for issuance under the Stock Purchase Plan shall be 250,000 Shares.

    The following sections summarize the principal features of the Stock
Purchase Plan, a copy of which is attached as Appendix E to this Joint Proxy
                                              -------- -                    
    Statement/Prospectus.  Although this Joint Proxy Statement/Prospectus
contains a summary of the principal features of the Stock Purchase Plan, this
summary is not intended to be complete and reference should be made to
Appendix E to this Joint Proxy Statement/Prospectus for the complete text of
- -------- -
the Stock Purchase Plan.

    The purpose of the Stock Purchase Plan is to provide incentives to the
employees by encouraging their ownership of shares of VCA Common Stock. All
officers and employees of VCA and its subsidiaries who are currently employed by
VCA or any of its subsidiaries who work at least 20 hours per week and who have
been regularly and continuously employed by VCA or its subsidiaries for at least
90 days are eligible to participate in the Stock Purchase Plan. Executive
officers of VCA are not eligible to participate in the Stock Purchase Plan.

    Each eligible participant may contribute to the Stock Purchase Plan a
percentage of his or her base compensation ranging from 5% to 15%. VCA will
contribute to the Stock Purchase Plan for each employee who is a participant, an
amount up to 20% of the employee's contribution, as determined in the discretion
of the VCA Board, on the first anniversary of such contribution.

    Up to 250,000 shares of VCA Common Stock may be issued under the Stock
Purchase Plan. This number will be appropriately adjusted for stock dividends,
stock splits, reclassifications and other changes affecting VCA's stock.

    The VCA Board may, at its discretion, terminate the Stock Purchase Plan or
amend it in any respect, except that no such termination or amendment shall
affect the right of a participant to receive his or her proportionate interest
in shares or contributions which have vested under the Stock Purchase Plan.
Approval of the Stock Purchase Plan will require the affirmative vote of the
holders of a majority of the Shares present in person or by proxy at the VCA
Annual Meeting. Failure of the stockholders to approve the Stock Purchase Plan
will not terminate the Plan, but will merely have the effect of precluding
exemption under Rule 16b-3 under the Exchange Act for purchases by officers of
VCA.

                                      136

<PAGE>
 
REQUIRED VOTE

     The VCA Board has unanimously approved the adoption of the Stock Purchase
Plan. The affirmative vote of a majority of the Shares present in person or
represented by proxy at the VCA Annual Meeting and voting on the proposed Stock
Purchase Plan is required for the approval of the adoption of the Stock Purchase
Plan. Unless marked otherwise, proxies received will be voted for the adoption
of the Stock Purchase Plan.

THE VCA BOARD UNANIMOUSLY RECOMMENDS A VOTE "FOR" THE ADOPTION OF THE PROPOSED
1996 EMPLOYEE STOCK PURCHASE PLAN.


                           PROPOSALS OF STOCKHOLDERS

     A proper proposal submitted by a stockholder for presentation at VCA's 1997
Annual Meeting and received at VCA's executive offices no later than February 
__, 1997, will be included in VCA's Proxy Statement and form of proxy relating 
to the 1997 VCA Annual Meeting.

     Under the VCA Bylaws, to bring business before an annual meeting, a
stockholder must give written notice thereof to the Secretary of VCA not less
than 60 nor more than 90 days before such meeting. The notice must set forth the
name, address and number of shares owned by the stockholder making the proposal,
a brief description of the business desired to be brought before the meeting and
the reasons for conducting it at such meeting, as well as such other information
as would be required to be disclosed in the solicitation of proxies under
Regulation 14(a) under the Exchange Act. Nomination for the VCA Board must also
include the written consent of the nominee to be elected and serve.

                        INDEPENDENT PUBLIC ACCOUNTANTS

     Arthur Andersen LLP, independent certified public accountants, were
selected by the VCA Board to serve as independent auditors of VCA for the fiscal
year ended December 31, 1995, and have been selected by the VCA Board to serve
as independent auditors for the fiscal year ending December 31, 1996.
Representatives of Arthur Andersen LLP are expected to be present at the VCA
Annual Meeting, will have an opportunity to make a statement if they desire to
do so and will respond to appropriate questions from stockholders.

                                 LEGAL OPINION

     The validity of VCA Common Stock issuable in the Merger has been passed
upon by Troop Meisinger Steuber & Pasich, LLP, 10940 Wilshire Blvd., Los
Angeles, California 90024, as counsel to VCA.

                                    EXPERTS

     The audited consolidated financial statements of VCA, the audited financial
statements of Southwest Veterinary Diagnostic, Inc., the audited supplemental
combined financial statements of VCA and the audited financial statements of
Pets' Rx, Inc. included in this Joint Proxy Statement/Prospectus and elsewhere
in the Registration Statement, to the extent and for the periods indicted, have
been audited by Arthur Andersen LLP, independent public accountants, as
indicated in their reports with respect thereto, and are included herein in
reliance upon the authority of said firm as experts in giving said reports.

     The financial statements of Pet Practice included in this Joint Proxy
Statement/Prospectus have been audited by Price Waterhouse LLP, independent
accountants, as set forth in its report thereon appearing elsewhere herein. Such
financial statements have been so included in reliance on such report, given on
the authority of said firm as experts in auditing and accounting.

                                 OTHER MATTERS

     The VCA Board is not aware of any matter to be acted upon at the VCA Annual
Meeting and the Pet Practice Board is not aware of any matter to be acted upon
at the Pet Practice Special Meeting other than described in this Joint Proxy
Statement/Prospectus. Unless otherwise directed, all shares represented by the
persons named in the accompanying proxy will

                                      137

<PAGE>
 
be voted in favor of the proposals described in this Joint Proxy 
Statement/Prospectus. If any other matter properly comes before the meeting, 
however, the proxy holders will vote thereon in accordance with their best 
judgment.

                         ANNUAL REPORT TO STOCKHOLDERS

     The VCA Annual Report for the fiscal year ended December 31, 1995 is being 
mailed to VCA's stockholders along with this Joint Proxy Statement/Prospectus. 
The VCA Annual Report is not to be considered part of the soliciting material.

                                      138
<PAGE>
 
                         INDEX TO FINANCIAL STATEMENTS

<TABLE> 
<CAPTION> 
                                                                                   PAGE
                                                                                   ----
<S>                                                                                <C> 
VETERINARY CENTERS OF AMERICA, INC.

     Consolidated Balance Sheets as of March 31, 1996 and
          December 31, 1995....................................................   F-4

     Consolidated Statements of Operations for the Three Months
          Ended March 31, 1996 and 1995........................................   F-5

     Consolidated Statements of Cash Flows for the Three
          Months Ended March 31, 1996 and 1995.................................   F-6

     Notes to Financial Statements.............................................   F-8

     Report of Independent Public Accountants..................................   F-9

     Consolidated Balance Sheets at December 31, 1995 and 1994.................   F-10

     Consolidated Statements of Operations for the Years Ended
          December 31, 1995, 1994, and 1993....................................   F-11

     Consolidated Statements of Stockholders' Equity for the
          Years Ended December 31, 1995, 1994 and 1993.........................   F-12

     Consolidated Statements of Cash Flows for the Years Ended
          December 31, 1995, 1994 and 1993.....................................   F-13

     Notes to Consolidated Financial Statements................................   F-15

     Report of Independent Public Accountants..................................   F-28

     Supplemental Combined Balance Sheets at December 31, 1995
          and 1994 and March 31, 1996..........................................   F-29

     Supplemental Combined Statements of Operations for the 
          Years Ended December 31, 1995, 1994 and 1993
          and the Three Months Ended March 31, 1996 and 1995...................   F-30

     Supplemental Combined Statements of Stockholders' 
          Equity for the Years Ended December 31, 1995, 1994
          and 1993 and the Three Months Ended March 31, 1996...................   F-31

     Supplemental Combined Statements of Cash Flows for
          the Years Ended December 31, 1995, 1994 and 1993
          and the Three Months Ended March 31, 1996 and 1995...................   F-32

     Notes to Supplemental Combined Financial Statements.......................   F-34


THE PET PRACTICE, INC.

     Consolidated Balance Sheet as of April 3, 1996 and
          January 3, 1996......................................................   F-50

     Consolidated Statement of Operations for the Thirteen Weeks Ended
          April 3, 1996 and March 29, 1995.....................................   F-52

     Consolidated Statement of Changes in Stockholders' Equity
          for the Thirteen Weeks Ended April 3, 1996...........................   F-53

     Consolidated Statement of Cash Flows for the Thirteen Weeks Ended
          April 3, 1996 and March 29, 1995.....................................   F-54

     Notes to Consolidated Financial Statements................................   F-55

     Report of Independent Accountants.........................................   F-58
</TABLE> 
                                      F-1

<PAGE>
 
<TABLE> 
<CAPTION> 
                                                                                    PAGE
                                                                                    -----
<S>                                                                                 <C> 
     Consolidated Balance Sheet as of December 28, 1994, and
          January 3, 1996......................................................    F-59

     Consolidated Statement of Operations for the Period October
          27, 1993 to December 29, 1993 and for the Fiscal
          Years Ended December 28, 1994 and January 3, 1996....................    F-60

     Consolidated Statement of Changes in Stockholders' Equity
          (Deficit) for the Period October 27, 1993 to December
          29, 1993 and for the Fiscal Years Ended December 28,
          1994 and January 3, 1996.............................................    F-61

     Consolidated Statement of Cash Flows for the Period October
          27, 1993 to December 29, 1993 and for the Fiscal
          Years Ended December 28, 1994 and January 3, 1996....................    F-62

     Notes to Consolidated Financial Statements................................    F-63


PROFESSIONAL VETERINARY HOSPITALS OF AMERICA, INC.

     Report of Independent Accountants.........................................    F-73

     Statement of Operations for the Year Ended January 27, 1993
          and the Period January 28, 1993 to October 26, 1993..................    F-74

     Statement of Stockholders' Deficit for the Year
          Ended January 27, 1993 and the Period
          January 28, 1993 to October 26, 1993.................................    F-75

     Statement of Cash Flows for the Year Ended January 27, 1993
          and the Period January 28, 1993 to October 26, 1993..................    F-76

     Notes to Financial Statements.............................................    F-77


PETS' RX, INC.

     Consolidated Balance Sheets as of March 31, 1996
          and December 31, 1995................................................    F-80

     Consolidated Statements of Operations for the Three
          Months Ended March 31, 1996 and 1995.................................    F-81

     Consolidated Statements of Cash Flows for the Three Months
          Ended March 31, 1996 and 1995........................................    F-82

     Notes to Consolidated Financial Statements................................    F-83

     Report of Independent Public Accountants..................................    F-84

     Report of Independent Public Accountants..................................    F-85

     Consolidated Balance Sheets as of December 31, 1995
          and 1994.............................................................    F-86
</TABLE> 

                                      F-2
<PAGE>

<TABLE> 
<CAPTION> 
                                                                                  PAGE
                                                                                  ----
<S>                                                                               <C> 
     Consolidated Statements of Operations for the Years
          Ended December 31, 1995, 1994 and 1993...............................   F-87

     Consolidated Statements of Redeemable Preferred Stock
          and Stockholders' Equity (Deficit) for the Years
          Ended December 31, 1995, 1994 and 1993...............................   F-88

     Consolidated Statements of Cash Flows for the Years
          Ended December 31, 1995, 1994 and 1993...............................   F-89

     Notes to Consolidated Financial Statements................................   F-90

     SOUTHWEST VETERINARY DIAGNOSTICS, INC.
     
     Report of Independent Public Accountants..................................   F-102

     Balance Sheet at December 31, 1995........................................   F-103

     Statement of Operations for the Year 
          Ended December 31, 1995..............................................   F-105
     
     Statement of Stockholders' Equity for the Year 
          Ended December 31, 1995..............................................   F-106

     Statement of Cash Flows for the Year 
          Ended December 31, 1995..............................................   F-107
     
     Notes to Financial Statements.............................................   F-108
</TABLE> 

 APPENDICES

Appendix A     Agreement and Plan of Reorganization
Appendix B     Opinion of National Westminster Bank PLC
Appendix C     Opinion of Smith Barney Inc.
Appendix D     VCA 1996 Stock Incentive Plan
Appendix E     VCA 1996 Employee Stock Purchase Plan
Appendix F     Exchange Ratios

                                      F-3
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                          CONSOLIDATED BALANCE SHEETS
                                  (UNAUDITED)

                                    ASSETS
<TABLE>
<CAPTION>
                                                                       March  31,    December 31,
                                                                          1996           1995
                                                                      ------------   ------------
<S>                                                                   <C>            <C>
Current assets:
  Cash and equivalents.............................................   $ 37,615,000   $ 46,799,000
  Accounts receivable, less allowance for uncollectible accounts...      8,816,000      6,303,000
  Inventory, prepaid expenses and other............................      4,121,000      3,518,000
  Deferred income taxes............................................      1,126,000      1,175,000
  Prepaid income taxes.............................................        250,000        494,000
                                                                      ------------   ------------
     Total current assets..........................................     51,928,000     58,289,000
 
Property, plant and equipment, net.................................     15,981,000     13,641,000
 
Other assets:
  Goodwill, net....................................................     79,637,000     61,359,000
  Covenants not to compete, net....................................      5,573,000      4,885,000
  Building purchase options........................................        887,000        887,000
  Notes receivable.................................................      1,183,000        878,000
  Deferred costs and other.........................................      1,859,000      1,526,000
                                                                      ------------   ------------
                                                                      $157,048,000   $141,465,000
                                                                      ============   ============
                      LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Current portion of long-term obligations.........................   $  7,563,000   $  6,009,000
  Accounts payable.................................................      5,794,000      4,850,000
  Accrued payroll and taxes........................................      2,238,000      1,961,000
  Other accrued liabilities........................................      3,339,000      3,593,000
                                                                      ------------   ------------
     Total current liabilities.....................................     18,934,000     16,413,000
 
Long-term obligations, less current portion........................     29,588,000     27,352,000
 
Deferred income taxes..............................................      1,538,000      1,301,000
 
Minority interest..................................................      4,843,000      4,605,000
 
Stockholders' equity:
  Preferred stock, par value $0.001................................          1,000          1,000
  Common stock, par value $0.001...................................         13,000         12,000
  Additional paid-in capital.......................................     99,072,000     89,734,000
  Accumulated earnings.............................................      3,059,000      2,047,000
                                                                      ------------   ------------
     Total stockholders' equity....................................    102,145,000     91,794,000
                                                                      ------------   ------------
                                                                      $157,048,000   $141,465,000
                                                                      ============   ============
</TABLE>
   The accompanying notes are an integral part of these consolidated balance
                                    sheets.

                                      F-4
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                     CONSOLIDATED STATEMENTS OF OPERATIONS
                           FOR THE THREE MONTHS ENDED
                            MARCH 31, 1996 AND 1995
                                  (UNAUDITED)

<TABLE>
<CAPTION>
                                                                                               1996           1995     
                                                                                            -----------   -------------
<S>                                                                                         <C>           <C>          
Revenues..............................................................................      $31,004,000    $15,230,000 
Direct costs..........................................................................       23,203,000     11,809,000 
                                                                                            -----------    ----------- 
Gross profit..........................................................................        7,801,000      3,421,000 
Selling, general and administrative...................................................        3,314,000      2,262,000 
Depreciation and amortization.........................................................        1,034,000        548,000 
Restructuring charge..................................................................               --      1,086,000 
                                                                                            -----------    ----------- 
Operating income (loss)...............................................................        3,453,000       (475,000)
Interest and other investment income..................................................          376,000        120,000 
Interest expense......................................................................          672,000        479,000 
                                                                                            -----------    ----------- 
Income (loss) before minority interest and provision (benefit) for income taxes.......        3,157,000       (834,000)
Minority interest in income of subsidiaries...........................................        1,346,000         21,000 
                                                                                            -----------    ----------- 
Income (loss) before provision (benefit) for income taxes.............................        1,811,000       (855,000)
Provision (benefit) for income taxes..................................................          799,000       (263,000)
                                                                                            -----------    ----------- 
Net income (loss).....................................................................      $ 1,012,000    $  (592,000)
                                                                                            ===========    =========== 
                                                                                                                       
Earnings (loss) per share.............................................................            $0.07         $(0.09)
                                                                                            ===========    =========== 
Weighted average common equivalent shares used for computing earnings (loss) per share       15,110,000      6,865,000 
                                                                                            ===========    ===========  
</TABLE>

  The accompanying notes are an integral part of these consolidated financial
                                  statements.

                                      F-5
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                   CONSOLIDATED  STATEMENTS  OF  CASH  FLOWS
                           FOR THE THREE MONTHS ENDED
                            MARCH 31, 1996 AND 1995
                                  (UNAUDITED)
<TABLE>
<CAPTION>
                                                                                   1996            1995
                                                                              -------------   ------------
<S>                                                                            <C>             <C>
Cash flows from operating activities:
  Net income (loss)....................................................        $ 1,012,000    $  (592,000)
  Adjustments to reconcile net income (loss) to net cash provided by
   operating activities:
      Depreciation and amortization....................................          1,034,000        548,000
      Amortization of debt discount....................................             72,000          3,000
      Minority interest in income of subsidiaries......................          1,346,000         21,000
      (Increase) decrease in other assets, net.........................           (325,000)        59,000
      Decrease in deferred income taxes................................            286,000         65,000
      Increase in accounts receivable, net.............................         (1,289,000)    (1,507,000)
      Increase in inventory, prepaid expenses and other................           (387,000)      (885,000)
      Decrease (increase) in prepaid income taxes......................            244,000       (332,000)
      Increase in accounts payable and accrued liabilities.............            300,000      2,704,000
      Payments to minority interest partners...........................           (961,000)       (43,000)
                                                                               -----------    -----------
         Net cash provided by operating activities.....................          1,332,000         41,000
                                                                               -----------    -----------
Cash flows from investing activities:
  Property and equipment additions, net................................           (948,000)       (78,000)
  Business acquisitions, net of cash acquired..........................        (12,051,000)    (2,028,000)
                                                                              ------------    -----------
         Net cash used in investing activities.........................        (12,999,000)    (2,106,000)
                                                                              ------------    -----------
Cash flows from financing activities:
  Reduction of long-term obligations...................................         (3,000,000)    (1,471,000)
  Payments received on notes receivable................................             12,000         32,000
  Net proceeds from exercise of warrants...............................          5,330,000      2,108,000
  Proceeds from issuance of common stock under stock option plans......            141,000          4,000
  Proceeds from issuance of common stock...............................                 --      9,980,000
  Repayment of line of credit..........................................                 --     (1,100,000)
                                                                              ------------    -----------
         Net cash provided by financing activities.....................          2,483,000      9,553,000
                                                                              ------------    -----------
(Decrease) increase in cash and equivalents............................         (9,184,000)     7,488,000
Cash and equivalents at beginning of period............................         46,799,000      5,553,000
                                                                              ------------    -----------
Cash and equivalents at end of period..................................       $ 37,615,000    $13,041,000
                                                                              ============    ===========
 </TABLE>

  The accompanying notes are an integral part of these consolidated financial
   statements.

                                      F-6
<PAGE>
 
               VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                   CONSOLIDATED  STATEMENTS  OF  CASH  FLOWS
                           FOR THE THREE MONTHS ENDED
                            MARCH 31, 1996 AND 1995
                                  (UNAUDITED)
                                  (continued)
<TABLE>
<CAPTION>
                                                                                           1996           1995
                                                                                       -----------    -----------
<S>                                                                                    <C>            <C>
Supplemental disclosures of cash flow information:
   Interest paid...................................................................    $   550,000    $   457,000
   Taxes paid......................................................................        269,000          4,000
 
Supplemental schedule of non-cash investing and financing activities:
   In connection with acquisitions, assets acquired and liabilities assumed 
     were as follows:
       Fair value of assets acquired...............................................    $23,304,000    $11,571,000
       Less:  Consideration given
          Cash paid to sellers, net of cash acquired...............................      9,875,000      2,028,000
          Cash paid in settlement of assumed liabilities...........................      2,176,000             --
          Common stock issued......................................................      3,868,000      2,300,000
                                                                                       -----------    -----------
       Liabilities assumed including notes payable issued, net of payments.........    $ 7,385,000    $ 7,243,000
                                                                                       ===========    ===========
 
   In connection with the formation of the joint venture and partnerships, assets and
     liabilities contributed by the partners were as follows:
       Assets.....................................................................     $   317,000    $ 2,876,000
       Liabilities................................................................             --       1,063,000
                                                                                       -----------    -----------
       Non-cash capital contribution of minority interest partners................     $   317,000    $ 1,813,000
                                                                                       ===========    ===========
 
       Non-cash increase in long-term obligations due to purchase of property.....     $      --      $   163,000
                                                                                       ===========    ===========
</TABLE>
  The accompanying notes are an integral part of these consolidated financial
   statements.

                                      F-7
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                         NOTES TO FINANCIAL STATEMENTS

                                 MARCH 31, 1996

                                  (UNAUDITED)

(1)  GENERAL

  The accompanying unaudited consolidated financial statements of Veterinary
Centers of America, Inc. and subsidiaries (the "Company" or "VCA") have been
prepared in accordance with generally accepted accounting principles for interim
financial information and with the instructions to Form 10-Q.  Accordingly, they
do not include all of the information and footnotes required by generally
accepted accounting principles for complete financial statements.  In the
opinion of management, all adjustments considered necessary for a fair
presentation have been included.  The results of operations for the three months
ended March 31, 1996 and 1995 are not necessarily indicative of the results to
be expected for the full year.  For further information, refer to the financial
statements and footnotes thereto for the year ended December 31, 1995 included
in the Company's Annual Report on Form 10-K as filed with the Securities and
Exchange Commission on March 25, 1996.

(2)  RECLASSIFICATIONS

  Certain 1995 balances have been reclassified to conform with the 1996
financial statement presentation.

(3)  ACQUISITIONS

  During the first quarter of 1996, the Company purchased seven veterinary
hospitals and a veterinary diagnostic laboratory in separate transactions for a
total consideration (including acquisition costs) of $23,304,000 consisting of
$9,875,000 in cash, $6,551,000 in long-term obligations, 242,926 shares of VCA
common stock, with a value of $3,868,000, and the assumption of liabilities
totaling $3,010,000.

  On February 27, 1996, the Company signed a definitive merger agreement with
Pets' Rx, Inc. ("Pets' Rx") which agreement was amended on April 11, 1996,
pursuant to which the Company may acquire all of the outstanding securities of
Pets' Rx for 850,000 shares of VCA common stock.  Pets' Rx owns and operates 16
veterinary hospitals in the San Jose and Sacramento, California and the Las
Vegas, Nevada markets.  The Company expects that the Pets' Rx merger will be
consummated in the second quarter of 1996.

  On March 21, 1996, the Company signed a definitive merger agreement with The
Pet Practice, Inc. ("The Pet Practice") pursuant to which the Company may
acquire all of the outstanding securities of The Pet Practice for approximately
3.2 million shares of VCA common stock.  The Pet Practice currently operates 86
veterinary hospitals in 11 states.  The Company expects that The Pet Practice
merger will be consummated in the third quarter of 1996.

(4)  INCOME TAXES

  The provision for income taxes is greater than the amount computed using the
statutory rate due primarily to nondeductible amortization of intangible assets.

(5)  SUBSEQUENT EVENTS

  On April 17, 1996, the Company received net proceeds of $82,697,000 from an
offshore offering and concurrent private placement in the United States, of
$84,385,000 of 5.25% convertible subordinated debentures due in 2006.  The
debentures, non-callable for three years, will be convertible into approximately
2.5 million shares of the Company's common stock at a rate of $34.35 per share.
Under the terms of the agreement the debentures and common stock issuable upon
conversion will be registered under the United States Securities Act of 1933 by
October 12, 1996.

                                      F-8
<PAGE>
 
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS



To Veterinary Centers of America, Inc.:

    We have audited the accompanying consolidated balance sheets of VETERINARY
CENTERS OF AMERICA, INC. (a Delaware corporation) and subsidiaries as of
December 31, 1995 and 1994, and the related consolidated statements of
operations, stockholders' equity and cash flows for each of the three years in
the period ended December 31, 1995.  These financial statements are the
responsibility of the Company's management.  Our responsibility is to express an
opinion on these financial statements based on our audits.

    We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Veterinary Centers of
America, Inc. and subsidiaries as of December 31, 1995 and 1994, and the results
of their operations and their cash flows for each of the three years in the
period ended December 31, 1995 in conformity with generally accepted accounting
principles.

    As discussed in Notes 2 and 11 to the consolidated financial statements,
effective January 1, 1993, the Company changed its method of accounting for
income taxes.

    Our audits were made for the purpose of forming an opinion on the basic
financial statements taken as a whole.  The schedule listed in the index of
financial statements is presented for purposes of complying with the Securities
and Exchange Commission's rules and is not part of the basic financial
statements.  This schedule  has been subjected to the auditing procedures
applied in the audit of the basic financial statements and, in our opinion,
fairly states in all material respects the financial data required to be set
forth therein in relation to the basic financial statements taken as a whole.


/s/ Arthur Andersen LLP
                                             
ARTHUR ANDERSEN LLP

Los Angeles, California
February 23, 1996

                                      F-9
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                          CONSOLIDATED BALANCE SHEETS
                         AT DECEMBER 31, 1995 AND 1994

                                  A S S E T S
<TABLE>
<CAPTION>
                                                                                1995          1994
                                                                            ------------   -----------
<S>                                                                         <C>            <C>
CURRENT ASSETS:
 Cash and equivalents....................................................   $ 46,799,000   $ 5,553,000
 Accounts receivable, less allowance for uncollectible accounts of
   $1,648,000 and $797,000 at December 31, 1995 and 1994, respectively...      6,303,000     1,745,000
 Inventory, prepaid expenses and other...................................      3,518,000       965,000
 Deferred income taxes...................................................      1,175,000       438,000
 Prepaid income taxes....................................................        494,000       172,000
                                                                            ------------   -----------
       Total current assets..............................................     58,289,000     8,873,000
PROPERTY, PLANT AND EQUIPMENT, NET.......................................     13,641,000     8,554,000
OTHER ASSETS:
 Goodwill, net...........................................................     61,159,000    30,635,000
 Covenants not to compete, net...........................................      4,885,000     1,946,000
 Building purchase options...............................................      1,087,000       837,000
 Notes receivable........................................................        878,000       787,000
 Deferred costs and other................................................      1,526,000       567,000
                                                                            ------------   -----------
                                                                            $141,465,000   $52,199,000
                                                                            ============   ===========
                      LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
 Current portion of long-term obligations................................   $  6,009,000   $ 4,850,000
 Accounts payable........................................................      4,850,000     2,126,000
 Accrued payroll and taxes...............................................      1,961,000       984,000
 Other accrued liabilities...............................................      3,593,000     1,517,000
                                                                            ------------   -----------
       Total current liabilities.........................................     16,413,000     9,477,000
LONG-TERM OBLIGATIONS, less current portion..............................     27,352,000    14,071,000
GUARANTEED PURCHASE PRICE CONTINGENTLY
  PAYABLE IN CASH OR COMMON STOCK........................................             --        72,000
DEFERRED INCOME TAXES....................................................      1,301,000       148,000
MINORITY INTEREST........................................................      4,605,000     5,034,000
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
  Preferred stock; $.001 par value; Authorized -- 1,000,000 shares:
       Issued and outstanding -- 583,333 at December 31, 1995 and 1994...          1,000         1,000
  Common stock; $.001 par value; Authorized -- 30,000,000 shares:
       Issued and outstanding -- 12,056,607 and 5,480,998 at
       December 31, 1995 and 1994, respectively..........................         12,000         5,000
  Additional paid-in capital.............................................     89,734,000    23,908,000
  Accumulated earnings (deficit).........................................      2,047,000      (517,000)
                                                                            ------------   -----------
          Total stockholders' equity.....................................     91,794,000    23,397,000
                                                                            ------------   -----------
                                                                            $141,465,000   $52,199,000
                                                                            ============   ===========
</TABLE>

   The accompanying notes are an integral part of these consolidated balance
                                    sheets.

                                     F-10
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                     CONSOLIDATED STATEMENTS OF OPERATIONS
              FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
<TABLE>
<CAPTION>
 
                                                                    1995           1994           1993
                                                                 -----------   ------------   ------------
<S>                                                              <C>           <C>            <C>
Revenues......................................................   $92,072,000   $42,233,000    $25,313,000
Direct costs..................................................    67,511,000    32,055,000     20,325,000
                                                                 -----------   -----------    -----------
Gross profit..................................................    24,561,000    10,178,000      4,988,000
Selling, general and administrative...........................    10,833,000     6,927,000      3,862,000
Depreciation and amortization.................................     3,291,000     1,455,000        956,000
Restructuring charge..........................................     1,086,000            --             --
Writedown of assets...........................................            --            --      2,310,000
                                                                 -----------   -----------    -----------
Operating income (loss).......................................     9,351,000     1,796,000     (2,140,000)
Interest income...............................................       729,000       366,000        448,000
Interest expense..............................................     2,368,000     1,382,000        873,000
                                                                 -----------   -----------    -----------
Income (loss) before minority interest, income taxes and
 cumulative effect of accounting change.......................     7,712,000       780,000     (2,565,000)
Minority interest in income (loss) of subsidiaries............     2,910,000      (540,000)      (334,000)
                                                                 -----------   -----------    -----------
Income (loss) before income taxes and
 cumulative effect of accounting change.......................     4,802,000     1,320,000     (2,231,000)
Provision (benefit) for income taxes..........................     2,238,000       731,000       (152,000)
                                                                 -----------   -----------    -----------
Income (loss) before cumulative effect of accounting change...     2,564,000       589,000     (2,079,000)
Cumulative effect of accounting change........................            --            --        221,000
                                                                 -----------   -----------    -----------
Net income (loss).............................................   $ 2,564,000   $   589,000    $(1,858,000)
                                                                 ===========   ===========    ===========
 
PRIMARY EARNINGS (LOSS) PER SHARE:
     Earnings (loss) before cumulative
       effect of accounting change............................   $      0.24   $      0.09    $     (0.40)
     Cumulative effect of accounting change...................            --            --           0.04
                                                                 -----------   -----------    -----------
     Net earnings (loss) per common share.....................   $      0.24   $      0.09    $     (0.36)
                                                                 ===========   ===========    ===========
 
     Average common shares used for computing
        primary earnings (loss) per share.....................    10,703,000     6,432,000      5,165,000
                                                                 ===========   ===========    ===========
 
FULLY DILUTED EARNINGS (LOSS) PER SHARE:
     Earnings (loss) before cumulative
       effect of accounting change............................   $      0.23   $      0.09    $     (0.33)
     Cumulative effect of accounting change...................            --            --           0.04
                                                                 -----------   -----------    -----------
     Net earnings (loss) per common share.....................   $      0.23   $      0.09    $     (0.29)
                                                                 ===========   ===========    ===========
 
     Average common shares used for computing
       fully diluted earnings (loss) per share................    11,238,000     6,906,000      6,238,000
                                                                 ===========   ===========    ===========
</TABLE>

 The accompanying notes are an integral part of these consolidated financial 
 statements.

                                     F-11
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
              FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
<TABLE>
<CAPTION>
                                          Common Stock              Preferred Stock             Additional    Accumulated 
                                       ------------------------------------------------------     Paid-In        Earnings
                                             Shares       Amount        Shares        Amount      Capital       (Deficit)
                                       ---------------   --------   ---------------   -------   ------------   ------------
<S>                                       <C>            <C>        <C>               <C>       <C>            <C>
BALANCES, December 31, 1992............      5,133,785    $ 5,000           583,333    $1,000    $21,541,000   $   752,000
Issued under stock option plans........         39,171         --                --        --        149,000            --
Net loss...............................             --         --                --        --             --    (1,858,000)
                                             ---------    -------          --------    ------    -----------   ----------- 
BALANCES, December 31, 1993............      5,172,956      5,000           583,333     1,000     21,690,000    (1,106,000)
Issued under stock option plans........          9,499         --                --        --         31,000            --
Business acquisitions..................        235,329         --                --        --      1,717,000            --
Settlement of guaranteed purchase               63,214         --                --        --        470,000            --
 price contingently payable in cash or
  common stock.........................
Net income.............................             --         --                --        --             --       589,000
                                             ---------    -------          --------    ------    -----------   ----------- 
BALANCES, December 31, 1994............      5,480,998      5,000           583,333     1,000     23,908,000      (517,000)
Sale of common stock...................      4,124,446      4,000                --        --     43,908,000            --
Sale of redeemable warrants............             --         --                --        --         58,000            --
Exercise of redeemable warrants........      1,271,508      2,000                --        --      8,894,000            --
Exercise of warrants issued in                  
 connection with the Vet Research  
 joint venture.........................         50,000         --                --        --        550,000            --
Issued under stock option plans........         29,367         --                --        --        209,000            --
Business acquisitions..................      1,075,288      1,000                --        --     11,979,000            --
Conversion of convertible debt.........         25,000         --                --        --        175,000            --
Settlement of guaranteed purchase                   
 price contingently
 payable in cash or common stock.......             --         --                --        --         53,000            --
Net income.............................             --         --                --        --             --     2,564,000
                                            ----------    -------          --------    ------    -----------   ----------- 
BALANCES, December 31, 1995............     12,056,607    $12,000           583,333    $1,000    $89,734,000   $ 2,047,000
                                            ==========    =======          ========    ======    ===========   ===========
</TABLE>

The accompanying notes are an integral part of these consolidated financial
                                  statements.

                                     F-12
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                     CONSOLIDATED STATEMENTS OF CASH FLOWS
              FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
<TABLE>
<CAPTION>
 
 
                                                                           1995            1994           1993
                                                                       -------------   ------------   ------------
<S>                                                                    <C>             <C>            <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net income (loss).................................................   $  2,564,000    $   589,000    $(1,858,000)
  Adjustments to reconcile net income (loss) to net cash provided
     by operating activities:
     Depreciation and amortization..................................      3,291,000      1,455,000        956,000
     Amortization of debt discount..................................        454,000         15,000         13,000
     Equity contribution for product development costs..............             --             --        806,000
     Utilization of acquired NOL carryforwards......................         69,000             --         40,000
     Writedown of assets............................................             --             --      2,310,000
     Minority interest in income (loss) of subsidiary...............      2,910,000       (540,000)      (600,000)
     Distributions to minority interest partners....................     (4,015,000)      (904,000)      (122,000)
     (Increase) decrease in accounts receivable, net................     (2,140,000)      (124,000)        24,000
     (Increase) decrease in inventory and other.....................     (1,787,000)      (319,000)       152,000
     (Increase) decrease in prepaid income taxes....................       (322,000)      (172,000)        99,000
     Increase in other assets, net..................................       (227,000)       (71,000)      (235,000)
     (Increase) decrease in deferred income tax asset...............       (737,000)       408,000       (872,000)
     Increase in accounts payable and accrued liabilities...........      3,559,000      1,399,000        467,000
     (Decrease) increase in income taxes payable....................             --       (337,000)       412,000
     Increase in deferred income tax liability......................        437,000         73,000             --
                                                                       ------------    -----------    -----------
        Net cash provided by operating activities...................      4,056,000      1,472,000      1,592,000
                                                                       ------------    -----------    -----------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Business acquisitions, net of cash acquired.......................     (9,107,000)    (5,948,000)    (1,021,000)
  Property and equipment additions, net.............................     (2,067,000)    (1,052,000)      (649,000)
  Payments for building purchase options............................       (250,000)       (60,000)      (250,000)
                                                                       ------------    -----------    -----------
        Net cash used in investing activities.......................    (11,424,000)    (7,060,000)    (1,920,000)
                                                                       ------------    -----------    -----------
CASH FLOWS FROM FINANCING ACTIVITIES:
 (Repayment of) proceeds from line of credit and
     addition of long-term obligations..............................     (1,100,000)     1,100,000         85,000
  Reduction of long-term obligations and notes payable..............     (4,971,000)    (2,494,000)    (1,553,000)
  Payments received on notes receivable.............................         79,000         55,000         29,000
  Payments on guaranteed purchase price
    contingently payable in cash or common stock....................        (19,000)            --             --
  Net proceeds from sale of common stock............................     43,912,000             --             --
  Net proceeds from exercise of redeemable warrants.................      8,896,000             --             --
  Proceeds from exercise of warrants issued
     in connection with Vet Research joint venture..................        550,000             --             --
  Proceeds from sale of redeemable warrants.........................         58,000             --             --
  Proceeds from issuance of common stock under stock option plans...        209,000         31,000        149,000
  Capital contribution of minority interest partners................      1,000,000         30,000      2,970,000
                                                                       ------------    -----------    -----------
        Net cash provided by (used in) financing activities.........     48,614,000     (1,278,000)     1,680,000
                                                                       ------------    -----------    -----------
INCREASE (DECREASE) IN CASH AND EQUIVALENTS.........................     41,246,000     (6,866,000)     1,352,000
CASH AND EQUIVALENTS AT BEGINNING OF YEAR...........................      5,553,000     12,419,000     11,067,000
                                                                       ------------    -----------    -----------
CASH AND EQUIVALENTS AT END OF YEAR.................................   $ 46,799,000    $ 5,553,000    $12,419,000
                                                                       ============    ===========    ===========
</TABLE>
  The accompanying notes are an integral part of these consolidated financial
                                  statements.

                                     F-13
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                     CONSOLIDATED STATEMENTS OF CASH FLOWS
              FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
                                  (CONTINUED)

<TABLE>
<CAPTION>
 
 
 
                                                                      1995            1994           1993
                                                                  -------------   ------------   ------------
<S>                                                               <C>             <C>            <C>
SUPPLEMENTAL DISCLOSURES OF CASH FLOW
INFORMATION:
  Interest paid................................................   $  1,906,000    $ 1,295,000    $   822,000
  Taxes paid...................................................      2,688,000        759,000        193,000
 
SUPPLEMENTAL SCHEDULE OF NONCASH
INVESTING AND FINANCING ACTIVITIES:
  In connection with acquisitions, assets acquired
     and liabilities assumed were as follows:
   Fair value of assets acquired...............................   $ 43,005,000    $15,553,000    $ 4,363,000
   Less: Consideration given
     Cash paid.................................................     (9,107,000)    (5,948,000)    (1,271,000)
     Common stock issued.......................................    (11,980,000)    (1,717,000)            --
                                                                  ------------    -----------    -----------
   Liabilities assumed including notes payable issued..........   $ 21,918,000    $ 7,888,000    $ 3,092,000
                                                                  ============    ===========    ===========
 
   In connection with the formation of the joint venture and
     partnerships, assets and liabilities contributed
     by the partners were as follows:
   Assets......................................................   $  3,224,000    $   330,000    $        --
   Liabilities.................................................      1,063,000             --             --
                                                                  ------------    -----------    -----------
   Non-cash capital contribution of minority
     interest partners.........................................   $  2,161,000    $   330,000    $        --
                                                                  ============    ===========    ===========
 
   Issuance of common stock in exchange
     for convertible debt......................................   $    175,000    $        --    $        --
                                                                  ============    ===========    ===========
 
   Settlement of guaranteed purchase price
     through issuance of common stock..........................   $     53,000    $   470,000    $        --
                                                                  ============    ===========    ===========
 
   Non-cash increase in long-term obligations due to
     purchase of equipment and building........................   $    184,000    $   164,000    $   860,000
                                                                  ============    ===========    ===========
</TABLE>

  The accompanying notes are an integral part of these consolidated financial
                                  statements.

                                     F-14
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                               DECEMBER 31, 1995

1.  THE COMPANY

Veterinary Centers of America, Inc. (VCA or the Company), a Delaware
corporation, was founded in 1986 and is a leading companion animal health care
company.  The Company operates one of the largest networks of free-standing,
full service animal hospitals in the country and one of the largest networks of
veterinary-exclusive diagnostic laboratories in the nation.  The Company also
markets both a life-stage and a therapeutic line of premium pet foods through
Vet's Choice, a joint venture with Heinz Pet Products, an affiliate of H.J.
Heinz Company.

At December 31, 1995, the Company owned 54 animal hospitals, 17 of which were
located in Southern California, seven in each of Northern California and
Pennsylvania, four in Massachusetts, three in each of Alaska and New Mexico, two
in each of Colorado, Florida, Maryland and Utah, and one in each of Arizona,
Georgia, Hawaii, Illinois and Delaware.  The Company's animal hospitals provide
primary care, diagnostic, surgical and boarding services for animals.

In March 1994, the Company expanded its presence in the laboratory business with
the acquisition of a 70 percent interest in Professional Animal Laboratory
("PAL").  During 1995, the Company further expanded its laboratory business with
the acquisition of Cenvet, Inc. ("Cenvet") and its subsequent contribution to
Vet Research Laboratories, LLC. ("Vet Research").  Also in 1995, the Company
acquired four other veterinary diagnostic laboratories, as well as the remaining
30 percent interest in PAL.  The Company's laboratories serve over 6,500 animal
hospitals located in 25 states.

In January 1993, the Company formed a joint venture, Vet's Choice, to develop,
manufacture, market and distribute new pet products and services.  The joint
venture was in the development stage during all of 1993 and consequently
generated no revenues or gross profit in 1993 (Note 4).  The joint venture
distributes two lines of premium pet food, Select Balance, a life-stage diet and
Select Care, a therapeutic line.  Select Balance is sold to veterinary hospitals
and clinics, as well as pet stores.  Select Care is sold  only to veterinary
hospitals.

2.   SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

a.   Principles of Consolidation

The accompanying consolidated financial statements include the accounts of the
Company and all majority owned subsidiaries.  All significant intercompany
transactions and balances have been eliminated.

b.  Cash Equivalents

For purposes of the balance sheets and statements of cash flows, the Company
considers only highly liquid investments to be cash equivalents.  Of its cash on
hand at December 31, 1995 and 1994, $1,907,000 and $2,982,000, respectively, was
restricted for use in the conduct of the Vet's Choice joint venture.

c.  Inventory

Inventory is valued at the lower of cost or market using the first-in, first-out
method.

d.   Property, Plant and Equipment

Property, plant and equipment is recorded at cost.  Capitalized equipment leases
are recorded at the lower of the present value of the minimum lease payments or
the fair value of the equipment at the beginning of the lease term.

                                     F-15
<PAGE>
 
Depreciation is recorded using the straight-line method over the estimated
useful lives of property and equipment (principally five to seven years) and
capitalized equipment leases (principally five years).  Leasehold improvements
are amortized over the lives of the leases (principally 10 years).  Costs of
normal repairs and maintenance are expensed as incurred.
<TABLE>
<CAPTION>
 
Property, plant and equipment consisted of:
                                                     1995           1994
                                                 ------------   ------------
<S>                                              <C>            <C>
 
     Land.....................................   $ 2,647,000    $ 2,065,000
     Building and improvements................     4,542,000      2,891,000
     Leasehold improvements...................     1,728,000      1,204,000
     Furniture and equipment..................     6,531,000      3,238,000
     Capitalized equipment leases.............     1,275,000        532,000
                                                 -----------    -----------
                                                  16,723,000      9,930,000
     Less -- Accumulated depreciation.........    (3,082,000)    (1,376,000)
                                                 -----------    -----------
                                                 $13,641,000    $ 8,554,000
                                                 ===========    ===========
</TABLE>

Accumulated depreciation on equipment held under capital leases amounted to
$293,000 and $170,000 at December 31, 1995 and 1994, respectively.

e.  Goodwill and Other Intangible Assets

Goodwill relating to acquisitions represents the purchase price paid and
liabilities incurred in excess of the fair market value of net assets acquired.
Goodwill is amortized over the expected period to be benefited, not exceeding 40
years, on a straight-line basis.

Subsequent to its acquisitions, the Company continually evaluates whether events
and circumstances have occurred that indicate the remaining estimated useful
life of goodwill may warrant revision or that the remaining balance of goodwill
may not be recoverable.  When factors indicate that goodwill should be evaluated
for possible impairment, the Company uses an estimate of the related facility's
undiscounted net income over the remaining life of the goodwill in measuring
whether the goodwill is recoverable (Note 13).

Other intangible assets principally include covenants not to compete.  The value
assigned to the covenants not to compete is amortized on a straight-line basis
over the term of the agreements (principally 5 to 10 years).

Accumulated amortization of goodwill and covenants not to compete and other at
December 31, 1995 is $5,808,000 and $1,939,000, respectively.  Accumulated
amortization of goodwill and covenants not to compete and other at December 31,
1994 is $4,406,000 and $821,000, respectively.

In March 1995, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 121 "Accounting for the Impairment of Long-
Lived Assets and for Long-Lived Assets to be Disposed Of."  The Statement
requires that long-lived assets and certain identifiable intangibles held and
used by an entity be reviewed for impairment whenever events or changes in
circumstances indicate that the carrying amount of an asset may not be
recoverable.  The Statement must be adopted by the Company no later than January
1, 1996.  The Company does not expect implementation of this statement to have a
material effect on its financial position or its results of operations.

f.  Investments

Effective January 1, 1994, the Company adopted Statement of Financial Accounting
Standards No. 115, "Accounting For Certain Investments in Debt and Equity
Securities," which establishes standards of financial accounting and reporting
for investments in equity securities that have readily determinable fair values
and for all investments in debt securities.  The adoption of this Statement did
not have a material effect on the financial position or results of operations of
the Company.

                                     F-16
<PAGE>
 
g.  Accounting Change

Effective January 1, 1993, the Company adopted Statement of Financial Accounting
Standards No. 109, "Accounting For Income Taxes," which requires recognition of
deferred tax liabilities and assets for the expected future tax consequences of
events that have been included in the financial statements or tax returns.
Under this method, deferred tax liabilities and assets are determined based on
the difference between the financial statement and tax basis of assets and
liabilities using enacted tax rates in effect for the year in which the
differences are expected to reverse (Note 11).

The cumulative effect of this accounting change, which resulted in recognizing
previously unrecognized tax benefits for years prior to January 1, 1993,
decreased the net loss for 1993 by $221,000.

h.  Reclassifications

Certain 1994 balances have been reclassified to conform with the 1995 financial
statement presentation.

3.  ACQUISITIONS AND DISPOSITIONS

During 1995, the Company purchased 25 animal hospitals for an aggregate
consideration (including acquisition costs) of $29,019,000, consisting of
$6,436,000 in cash, $10,859,000 in debt, 836,576 shares of common stock of the
Company, with a value of $9,780,000, and the assumption of liabilities totaling
$1,944,000.  In addition, the Company paid $250,000 to acquire an option to
purchase the land and building of two of the hospitals.

Also during 1995, the Company purchased substantially all of the assets of
Cenvet, a full-service veterinary diagnostic laboratory, four other veterinary
diagnostic laboratories and the remaining 30 percent interest in PAL, for an
aggregate consideration of $13,986,000, including acquisition costs, consisting
of $2,671,000 in cash, $8,633,000 in long-term obligations, 238,712 shares of
VCA common stock, with a value of $2,200,000 and the assumption of liabilities
totaling $482,000.

On March 20,1995, the Company and Vet Research, Inc., ("VRI"), formed Vet
Research Laboratories, LLC ("Vet Research").  In connection with the formation
of Vet Research, VRI contributed all of the assets and certain of the
liabilities of VRI's full-service veterinary diagnostic laboratory located in
Farmingdale, New York.  The Company contributed substantially all of the assets
and certain of the liabilities of Cenvet for a 51 percent controlling interest
in the joint venture (Note 4).

In connection with the formation of Vet Research, the Company issued warrants to
purchase 363,636 shares of the common stock of the Company at $11.00 per share.
The warrants were purchased at $0.001 per warrant and are exercisable until the
fifth day following the last day upon which the Company is permitted to close
the purchase of VRI's interest in Vet Research  pursuant to the VCA Option
Agreement.

In 1994, VCA purchased four veterinary hospitals for a total consideration
(including acquisition costs) of $5,754,000 consisting of $1,329,000 in cash,
$3,663,000 in non-recourse promissory notes payable, 91,996 shares of VCA common
stock with a value of $680,000, and the assumption of liabilities totaling
$82,000.  In addition, the Company paid $60,000 to acquire an option to purchase
the land and building of one of the hospitals.

In 1994, the Company acquired substantially all of the assets and assumed
certain of the liabilities of PAL, a full-service veterinary laboratory, located
in Irvine, California.  In connection with the purchase, the Company also
acquired from a principal shareholder of PAL, the real property and building
occupied by the business of PAL.  The business is operated by a partnership to
which the Company contributed the veterinary laboratory that it previously
owned.  The net consideration (including acquisition costs) paid by the Company
in connection with these transactions, totaling $9,799,000, consisted of
$4,619,000 in cash, $3,446,000 in notes payable, 143,333 shares of VCA common
stock with a value of $1,037,000, and the assumption of liabilities totaling
$697,000.

                                     F-17
<PAGE>
 
The non-recourse notes payable, with a principal amount of $3,663,000, to the
previous owners of the hospitals are secured by the assets of the acquired
hospitals.  The fair market value of the tangible assets acquired, including
accounts receivable, supplies, inventory and hospital equipment, totals
approximately $360,000.

In 1993, VCA purchased six veterinary hospitals for a total consideration of
$4,113,000 consisting of $1,021,000 in cash, $2,967,000 in non-recourse notes
payable and the assumption of liabilities totaling $125,000.  In addition, the
Company paid $250,000 to acquire options to purchase the land and building of
two of the hospitals.  The obligations of the Company to the previous owners
pursuant to the non-recourse notes are secured by the assets of the companies
acquired.  The fair market value of the tangible assets acquired including
accounts receivable, supplies, inventory and hospital equipment, totals
approximately $295,000.  During 1993, the Company exercised its option to
purchase the land and building of one of its animal hospitals for total
consideration of approximately $1,296,000 consisting of a $436,000 option
payment made in 1992 and the assumption of a mortgage payable in the amount of
$860,000.

All acquisitions have been accounted for using the purchase method of
accounting.  The operations of the acquired companies are included in the
accompanying consolidated financial statements from the date of acquisition.

The pro forma results listed below are unaudited and reflect purchase price
accounting adjustments assuming 1994 and 1995 acquisitions occurred at January
1, 1994.  The pro forma results are not necessarily indicative of what actually
would have occurred if the acquisitions had been in effect for the entire
periods presented.  In addition, they are not intended to be a projection of
future results and do not reflect any efficiencies that might be achieved from
the combined operation.
<TABLE>
<CAPTION>
                                                                    (Unaudited)
                                                               1995            1994
                                                           ------------    ------------
           <S>                                             <C>             <C>
           Revenue......................................   $112,070,000    $100,229,000
           Net income...................................   $  4,811,000    $  4,018,000
           Primary earnings per share...................   $       0.40    $       0.43
           Fully diluted earnings per share.............   $       0.39    $       0.41
           Weighted average shares used for computing
               earnings per share:
             Primary....................................     11,959,000       9,420,000
             Fully diluted..............................     12,494,000       9,894,000
</TABLE>

4.  JOINT VENTURES

In January 1993, the Company entered into a joint venture with Heinz Pet
Products, Vet's Choice, to develop, manufacture and market new pet products and
services.  The Company obtained a 50.5 percent controlling interest in the joint
venture for a capital contribution of $3,030,000 in cash and is the managing
general partner.  Heinz Pet Products  ("HPP"), contributed $2,970,000 in cash
for a 49.5 percent minority interest in the joint venture.  Under the terms of
the partnership agreement, HPP also agreed to make an additional capital
contribution of their product development costs of up to $1 million.  The actual
costs incurred during 1993 were $806,000.  Such costs were expensed and credited
to the minority interest partner's equity account.  Commencing January 1, 1996
the joint venture will make preferential distributions to HPP of any
distributable cash in excess of $3 million in any fiscal year until such time as
HPP has received preferential distributions amounting to the total development
costs that it contributed.  As provided by the partnership agreement, the
Company and Heinz Pet Products each contributed $1 million to the joint venture
in the third quarter of 1995.  The joint venture agreement between the Company
and HPP provides for restrictions on the transfer of each partner's respective
interest in the joint venture and for reciprocal buy-sell provisions.  Heinz Pet
Products has agreed to lend Vet's Choice up to $1.0 million at its bank prime
rate plus one-half percent for working capital.

The Company operates Vet Research in a joint venture with VRI.  Vet Research's
operating results have been accounted for as part of the consolidated
operations of the Company.  Distributions of distributable cash will be made

                                     F-18
<PAGE>
 
pursuant to a formula contained in the operating agreement between the Company
and VRI.  Pursuant to that formula, during each contract year, the first $1.5
million of distributable cash is distributed to VRI; the next $3 million of
distributable cash is distributed to the Company; and the remaining
distributable cash is distributed 25 percent to the Company and 75 percent to
VRI.  The Company has recorded minority interest expense related to the joint
venture based on the estimated percentage of annual income which will be
distributed to the minority interest partner pursuant to the operating
agreement.  The estimate is reviewed and adjusted on a quarterly basis.  The
1995 results include minority interest expense of 52.4 percent of Vet Research's
income.

The Company has an option pursuant to an agreement with VRI to acquire VRI's
entire interest in Vet Research for a purchase price as computed in accordance
with the operating agreement.  The Company's option is exercisable January 1,
1997 through January 31, 1997.  If the Company does not exercise its option, VRI
has an option to acquire the Company's interest in Vet Research.

5.  LONG-TERM OBLIGATIONS

Long-term obligations consisted of the following at December 31, 1995 and 1994:
<TABLE>
<CAPTION>
                                                                                          1995          1994
                                                                                       -----------   ----------
<S>                                                                                    <C>           <C>
8 percent note payable, convertible into VCA common stock at $12.50 per
  share, due through 1997, secured by certain fixed and intangible assets...........   $    57,000   $   86,000
5 percent note payable, convertible into VCA common stock at $15.00 per
  share due through 1997, secured by stock of certain subsidiaries..................       196,000      391,000
11.2 percent note payable due through 1997, secured by assets
  of a certain subsidiary...........................................................       408,000      483,000
Adjustable rate note payable, interest at the treasury bill rate (6.3 percent
  at December 31, 1995) adjusted annually, due through June 2000 (discounted
  at 6.5 percent)...................................................................       300,000      355,000
Obligation due monthly through May 2000, secured by assets of certain
  subsidiary (discounted at 6.5 percent)............................................       230,000      273,000
Obligation due quarterly through 1997, (discounted at 8.75 percent).................       361,000           --
Obligation due quarterly through 2002, secured by assets of certain
  subsidiary (discounted at 8.75 percent)...........................................     2,580,000           --
Adjustable rate note payable, interest at the bank prime rate plus 0.5 percent,
  (capped at 8.5 percent at December 31, 1995), adjusted annually, due through
  2000, secured  by stock of a certain subsidiary...................................       592,000      698,000
3 percent note payable, converted into VCA common stock in June 1995
  at $7.00 per share................................................................            --      175,000
Adjustable rate notes payable, interest at the bank prime rate, adjusted annually
  (capped at 8.0 percent at December 31, 1995), various maturities through 2000,
  secured by assets and stock of certain subsidiaries...............................     2,516,000    2,899,000
Adjustable rate notes payable, interest at the bank prime rate plus 1 percent
  (8.0 percent to 9.5 percent at December 31, 1995), various maturities through
  2002, secured by assets and stock of certain subsidiaries.........................       510,000      589,000
6 percent notes payable, due through 2002, secured by stock of certain subsidiary...       641,000      760,000
7 percent and 7.5 percent notes payable, due through 2007, secured by
  assets and stock of certain subsidiaries..........................................    10,953,000    3,034,000
8 percent notes payable, various maturities through 2006, secured by stock of
  certain subsidiaries..............................................................     6,915,000      339,000
9 percent and 9.8 percent notes payable, various maturities through 2005,
  secured by assets of certain subsidiary and building..............................       898,000           --
Notes payable and other obligations, various maturities through 1997, secured
  by land, building and stock of certain subsidiaries (discounted at 10 to
  12 percent).......................................................................       299,000      471,000
10 percent notes payable, various maturities through 2005, secured by stock
  and assets of certain subsidiaries and land and building..........................     2,627,000    2,867,000
</TABLE>

                                     F-19
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                            1995           1994
                                                                                        ------------   ------------
<S>                                                                                     <C>            <C>
Revolving line of credit at the bank prime rate (8.5 percent at December 31, 1995)
  matures December 1996, convertible into a 36 month term loan.......................            --    $ 1,100,000
10.5 percent note payable, due through 1997, secured by land and
  building of a certain subsidiary...................................................   $ 1,016,000      1,025,000
Adjustable rate notes payable, interest at bank prime rate, plus 1.5 percent
  (capped at 9.0 percent at December 31, 1995), due through 2001, secured
  by assets and stock of certain subsidiaries........................................       707,000        803,000
11 percent note payable due through 2001, secured by assets
  of certain subsidiary..............................................................       383,000        449,000
Adjustable rate notes payable at the bank prime rate, plus 1 percent
  (9.75 percent at December 31, 1995)................................................       420,000      1,688,000
Notes payable, secured by assets and stock of certain subsidiaries, various
  maturities through 2001, interest at an average rate of 11 to 12 percent...........       123,000        152,000
                                                                                        -----------    -----------
Total debt obligations...............................................................    32,732,000     18,637,000
Capital lease obligations, due through 2000 (Note 9).................................       862,000        358,000
Less -- Unamortized discount.........................................................      (233,000)       (74,000)
                                                                                        -----------    -----------
                                                                                         33,361,000     18,921,000
Less -- Current portion..............................................................    (6,009,000)    (4,850,000)
                                                                                        -----------    -----------
                                                                                        $27,352,000    $14,071,000
                                                                                        ===========    ===========
</TABLE>
The annual aggregate scheduled maturities of debt obligations for the five years
subsequent to December 31, 1995 are presented below:

<TABLE>
<S>              <C>
1996..........    $6,009,000
1997..........     6,321,000
1998..........     4,260,000
1999..........     3,839,000
2000..........     4,246,000
Thereafter....     8,686,000
                 -----------
                 $33,361,000
                 ===========
</TABLE>

Certain acquisition debt of the Company included above and amounting to
$23,102,000 and $14,608,000 at December 31, 1995 and 1994, respectively, is
non-recourse debt secured solely by the assets or the stock of the veterinary
hospital acquired under security arrangements whereby the creditor's sole remedy
in the event of default is the contractual right to take possession of the
entire veterinary hospital regardless of the outstanding indebtedness at the
time of default.

The Company has an unsecured line of credit of $3.1 million.  The line of credit
is at the bank prime rate (8.5 percent at December 31, 1995) and expires in
December 1996, at which time the outstanding balance on the line can, at the
Company's option, convert to a 36-month term loan.  At December 31, 1995, the
Company had $3.1 million available under the line.

The following disclosure of the estimated fair value of the Company's debt is
made in accordance with the requirements of Statement of Financial Accounting
Standards No. 107 "Disclosures about Fair Value of Financial Instruments."  The
estimated fair value amounts have been determined by the Company using available
market information and appropriate valuation methodologies.  Considerable
judgment is required to develop the estimates of fair value, thus the estimates
provided therein are not necessarily indicative of the amounts that could be
realized in a current market exchange.

                                     F-20
<PAGE>
 
<TABLE> 
<CAPTION> 
                                                    December 31, 1995
                                                  -----------------------
                                                   Carrying         Fair
                                                    Amount         Value
                                                  ----------   -----------
     <S>                                          <C>          <C> 
     Fixed-rate long-term debt.................   $23,229,000  $19,677,000
     Variable-rate long-term debt..............     4,123,000    4,123,000
</TABLE> 

The carrying values of variable-rate long-term debt is a reasonable estimate of
their fair value.  The estimated fair value of the Company's fixed-rate long-
term debt is based on prime plus an estimated spread at December 31, 1995 for
similar securities with similar remaining maturities.

6.  PREFERRED STOCK

On December 22, 1992, the Company completed the sale of 583,333 shares of
convertible preferred stock for net proceeds of $2,985,000.  The shares are
convertible into 583,333 shares of the Company's common stock commencing
December 22, 1997.  The preferred stock participates in any dividend payments on
the Company's common stock on an as converted basis.  The preferred stock has a
liquidation preference of $5.14 per share and it is callable by the Company any
time after March 22, 1998 at a price of $5.14 per share.  The preferred stock
has no voting rights.

Under the Company's certificate of incorporation, the Company is authorized to
issue additional series of preferred stock.  The rights, preferences and
privileges of the preferred stock are to be determined by the board of directors
and do not require stockholder approval.

7.  COMMON STOCK

In January 1995, Star-Kist Foods, Inc. through its Heinz Pet Products division
purchased 1,159,420 shares of the Company's common stock at $8.625 per share,
resulting in net proceeds to the Company of $9,980,000.

In November 1995, the Company completed a secondary public offering of 2,965,026
shares of common stock for net proceeds of $33,932,000.

During 1995, the Company issued 1,075,226 shares of the Company's common stock
valued at $11,980,000, the fair market value at the date of commitment, as a
portion of the consideration for 15 animal hospitals and three veterinary
diagnostic laboratories.  Of this amount, 156,303 shares of common stock valued
at $1,970,000 had not been issued as of December 31, 1995.  Such shares are
reflected as though they are outstanding in the accompanying consolidated
financial statements.

In conjunction with the acquisition of two hospitals and PAL in 1994, the
Company issued 235,329 shares of common stock with a market value at the date of
issue of $1,717,000.  Also in 1994, the Company issued 63,214 shares of common
stock in settlement of a guaranteed purchase price contingently payable in cash
or common stock (Note 8).

On October 6, 1991, the Company completed a public offering of 2,400,000 shares
of common stock and 3,240,000 redeemable warrants for $12,598,000.  Each
redeemable warrant entitles the holder to purchase one share of common stock for
$7.20 commencing April 10, 1992 until October 10, 1996, and is redeemable at the
option of the Company at any time after April 10, 1992 on 30 days prior written
notice, provided that the market price of the common stock equals or exceeds
$9.00 per share for 20 consecutive trading days ending within 10 days prior to
notice of redemption.  Such market price exceeded $9.00 per share for 20
consecutive days on March 10,1995.  During 1995, redeemable warrants were
exercised for 1,271,508 shares of common stock.  Cash proceeds from the exercise
of redeemable warrants amounted to $8,896,000.

Under the provisions of the Company's non-qualified and incentive stock option
plans for officers and key employees, 750,000 shares of common stock were
reserved for issuance at December 31, 1992.  On May 5, 1995, the stockholders of
the Company approved the adoption of the Veterinary Centers of America, Inc.
1995 Stock Incentive Plan, and authorized the reservation of 750,000 shares of
common stock for issuance under the Plan.  The options become exercisable over a
two to five year period, commencing at the date of grant or one year from the

                                     F-21
<PAGE>
 
date of grant depending on the option.  All options expire 10 years from the
date of grant.  The prices of all options granted were greater than or equal to
the fair market value at the date of the grant.

The table below summarizes the transactions in the Company's stock option plans
during 1995, 1994 and 1993:
<TABLE>
<CAPTION>
 
                                                      1995        1994       1993
                                                   ----------   --------   --------
<S>                                                <C>          <C>        <C>
     Options outstanding at beginning of year...     705,001    598,650    342,700
     Granted....................................     820,750    132,800    275,500
     Exercised..................................     (21,034)    (9,499)    (5,838)
     Canceled...................................     (13,200)   (16,950)   (13,712)
                                                   ---------    -------    -------
     Options outstanding at end of year
       ($.75 to $12.38 per share)...............   1,491,517    705,001    598,650
                                                   =========    =======    =======
 
     Exercisable at end of year.................     640,824    419,708    285,338
                                                   =========    =======    =======
</TABLE>

In addition to the options granted under VCA's stock option plans, the Company
had 45,667 and 54,000 options outstanding at December 31, 1995 and 1994,
respectively, to certain members of the board of directors and to the previous
owners of certain acquired companies.  During 1995, 8,333 of these options were
exercised.  The options are exercisable at $.75 to $6.00 per share.  At December
31, 1995, 45,667 of the options are exercisable.

In November 1995, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 123 "Accounting for Stock-Based
Compensation."  The statement recommends changes in accounting for employee
stock-based compensation plans, and requires certain disclosures with respect to
these plans.  The Statement's disclosures will be adopted by the Company
effective January 1, 1996.

8.  GUARANTEED PURCHASE PRICE CONTINGENTLY PAYABLE IN CASH OR COMMON STOCK

The Company has guaranteed the value of certain shares of its common stock
issued in connection with the acquisition of certain animal hospitals in 1995.
If the aggregate market value of the stock (as quoted by a nationally recognized
stock exchange) at various specified valuation dates is below the value of the
stock on the acquisition date, the Company has agreed to pay the difference in
additional shares of stock, cash or notes payable.  The Company's guarantee of
the value, however, terminates if the common stock is registered for resale and
trades at 110% to 120% of the issue price of the stock for five to twenty
consecutive days.  At December 31, 1995, there were 404,495 shares of stock
outstanding with such guarantees, with issue prices ranging from $11.26 to
$14.95.

In connection with certain acquisitions completed prior to 1995, the Company
guaranteed the price of certain shares of its common stock issued in connection
with the acquisitions.  If the aggregate market value of the stock (as quoted by
a nationally recognized stock exchange) had not reached the guaranteed value,
which exceeded the value of the stock at the acquisition date, by the various
specified valuation dates, the Company agreed to pay the difference in
additional shares of stock, cash, or notes payable.  The guaranteed purchase
price contingently payable in cash or common stock represents the liability for
the difference between the aggregate guaranteed value of the common stock net of
the Company's estimate of the fair market value of the stock at the date of the
acquisition, discounted at 10 percent.

In 1995, pursuant to two of these stock guarantee arrangements pertaining to a
total of 13,494 shares, the Company paid $19,000 in cash for the difference
between the guaranteed value of the stock held and the market value of the
stock, as defined.  The difference between the $19,000 and the $72,000 liability
for the guaranteed purchase price contingently payable in cash or common stock,
amounting to $53,000 was credited to additional paid-in-capital.

In 1994, pursuant to a stock guarantee arrangement for 80,000 shares, the
Company issued 63,214 shares of common stock for the difference between the
guaranteed value of the stock held and the market value of the stock, as
defined.  The market value of the additional shares issued, totaling $470,000,
was charged to the liability for the guaranteed purchase price contingently
payable in cash or common stock.

                                     F-22
<PAGE>
 
9.  COMMITMENTS

The Company operates many of its hospitals from premises that are leased from
the hospitals' previous owners under operating leases with terms, including
renewal options, ranging from one to 35 years.

The annual lease payments under the lease agreements have provisions for annual
increases based on the Consumer Price Index.  The Company also leases certain
medical and computer equipment under capital leases.

The future minimum lease payments at December 31, 1995 are as follows:
<TABLE>
<CAPTION>
 
                                                        Capital      Operating
                                                        Leases         Leases
                                                      -----------   ------------
<S>                                                   <C>           <C>
 
     1996..........................................   $  401,000     $ 3,145,000
     1997..........................................      317,000       3,153,000
     1998..........................................      227,000       2,948,000
     1999..........................................       46,000       2,449,000
     2000..........................................       12,000       2,288,000
     Thereafter....................................           --      30,242,000
                                                      ----------     -----------
                                                       1,003,000     $44,225,000
                                                                     ===========
     Less -- Amount representing interest..........     (141,000)
                                                      ----------
     Present value of net minimum lease payments...   $  862,000
                                                      ==========
</TABLE>

Rent expense totaled $2,936,000, $1,574,000 and $1,170,000 for the years ended
December 31, 1995, 1994 and 1993, respectively.  Rental income totaled $246,000,
$96,000 and $96,000 for the years ended December 31, 1995, 1994 and 1993,
respectively.

The Company has employment agreements with three officers of the Company which
currently expire on December 31, 1998.  Each of the agreements provide for
annual compensation (subject to upward adjustment) which aggregated $559,000 for
the year ended December 31, 1995.

10.  CALCULATION OF PER SHARE AMOUNTS

Earnings per share calculations are based on the weighted average common shares
outstanding including obligated shares (Note 7) plus common shares subject to
dilutive stock options, common shares contingently issuable pursuant to the
guaranteed purchase price contingently payable in cash or common stock as
discussed in Note 8, convertible debt and shares issuable upon redemption of
redeemable warrants and conversion of preferred stock.  Stock options, common
shares contingently issuable and shares issuable upon conversion of preferred
stock are not included in the weighted average common shares in 1993 as they
have an anti-dilutive effect.

                                     F-23
<PAGE>
 
11.  Income Taxes

The provision for income taxes is comprised of the following:
<TABLE>
<CAPTION>
 
                  1995         1994         1993
               -----------   ---------   ----------
<S>            <C>           <C>         <C>
Federal:
 Current....   $1,888,000     $183,000   $ 490,000
 Deferred...     (192,000)     296,000    (595,000)
               ----------     --------   ---------
                1,696,000      479,000    (105,000)
               ----------     --------   ---------
State:
 Current....      560,000      239,000     141,000
 Deferred...      (18,000)      13,000    (188,000)
               ----------     --------   ---------
                  542,000      252,000     (47,000)
               ----------     --------   ---------
               $2,238,000     $731,000   $(152,000)
               ==========     ========   =========
</TABLE>

Effective January 1, 1993, the Company adopted the provisions of Statement of
Financial Accounting Standards No. 109, "Accounting for Income Taxes" ("SFAS
109").  SFAS 109 requires recognition of deferred tax liabilities and assets for
the expected future tax consequences of events that have been included in the
financial statements or tax returns.  Under this method, deferred tax
liabilities and assets are determined based on the difference between the
financial statement and tax bases of assets and liabilities using enacted tax
rates in effect for the year in which the differences are expected to reverse.
The Company reflected the impact as a cumulative adjustment in the 1993 first
quarter and did not restate prior periods.  The cumulative adjustment had a
favorable impact of $221,000 on the net loss.

The net deferred tax asset (liability) is comprised of the following:
<TABLE>
<CAPTION>
                                                            1995          1994
                                                        ------------   ----------
<S>                                                     <C>            <C>
Current deferred tax assets (liabilities):
  Accounts receivable................................   $   301,000    $ 165,000
  State taxes........................................       156,000       34,000
  Other liabilities and reserves.....................       223,000      156,000
  Start-up costs.....................................        59,000      120,000
  Property, plant and equipment......................        95,000      (33,000)
  Restructuring......................................       345,000           --
  Other assets.......................................        (4,000)      (4,000)
                                                        -----------    ---------
             Total current deferred tax asset, net...   $ 1,175,000    $ 438,000
                                                        ===========    =========
<CAPTION>  
                                                            1995         1994
                                                        -----------    ---------
<S>                                                     <C>            <C> 
Non-current deferred tax (liabilities) assets:
  Net operating loss carryforwards...................   $    76,000    $ 145,000
  Start-up costs.....................................       288,000      151,000
  Miscellaneous......................................            --       25,000
  Other assets.......................................      (119,000)    (124,000)
  Intangible assets..................................    (1,805,000)     (66,000)
  Valuation allowance................................       (76,000)    (145,000)
  Property, plant and equipment......................       335,000     (134,000)
                                                        -----------    ---------
Total non-current deferred tax liability, net........   $(1,301,000)   $(148,000)
                                                        ===========    =========
</TABLE>

                                     F-24
<PAGE>
 
A reconciliation of the provision for income taxes to the amount computed at the
Federal statutory rate is as follows:
<TABLE>
<CAPTION>
 
                                            1995    1994     1993
                                            -----   -----   -------
<S>                                         <C>     <C>     <C>
  Federal income tax at statutory rate...   34.0%   34.0%   (34.0)%
  Effect of amortization of goodwill.....    5.0     9.0      5.0
  State taxes, net of Federal benefit....    8.0    12.0      2.0
  Cumulative impact of tax law change....     --      --     (3.0)
  Writedown of assets....................     --      --     24.0
                                            ----    ----    ------
                                            47.0%   55.0%    (6.0)%
                                            ====    ====    ======
</TABLE>

For financial reporting purposes, the benefit arising from the utilization of
operating loss carryforwards generated by companies prior to their acquisition
by VCA is accounted for as a reduction of goodwill of the acquired companies.
Such benefit amounted to $40,000 and $69,000 for the years ended December 31,
1993 and 1995, respectively.  No benefit was realized for the year ended
December 31, 1994.  For tax reporting purposes, the acquired companies have
Federal net operating loss carryforwards at December 31, 1995 of approximately
$260,000 expiring through 2003.

12.  401(K) PLAN

During 1992, the Company established a voluntary retirement plan under Section
401(k) of the Internal Revenue Code.  The plan covers all eligible employees and
provides for annual matching contributions by the Company at the discretion of
the Company's board of directors.  In 1995, 1994 and 1993, the Company provided
a matching contribution of 20 percent, 20 percent and 15 percent, respectively
of the first five percent of the employees' contributions, as defined.  Such
matching contributions approximated $87,000, $46,000 and $24,000 in 1995, 1994
and 1993, respectively.

13.  WRITEDOWN OF ASSETS

During 1993, the Company charged $2,310,000 to operations related to the
writedown of goodwill and certain intangible assets at three of the Company's
facilities.  The determination to writedown these assets was based on the
Company's estimate that forecasted losses at each facility indicated that the
intangible assets would not be realized.

The first of the three hospitals was purchased in March 1989, with goodwill on
the acquisition of $920,000.  In the five years subsequent to the acquisition,
the hospital generated losses aggregating $84,000 through December 31, 1993, due
primarily to severe competition in the area from the veterinarian from whom the
Company acquired the hospital.  In January 1994, the economy in the area where
the hospital operates was adversely impacted by the "Northridge Earthquake,"
further impacting the hospital's revenues and operating results.

The second hospital was purchased in December 1989, at a price of approximately
$1 million, with goodwill on the acquisition of $997,000.  Since the
acquisition, the hospital generated aggregate net income of $250,000 through
December 31, 1993, including a loss of $44,000 in 1992 and income of $17,000 in
1993.  Included in the operating results is income of $73,000 in 1992 and
$39,000 in 1993 from the rental of space at the facility to a veterinary surgery
referral practice.  The rental agreement was terminated in July 1993 and, due to
the specialization of the services provided by the referral practice, the
hospital was unable to find a suitable replacement.  In addition to the impact
of the loss of rental income, the hospital's revenue and income were adversely
impacted by the loss of referral business from the referral practice. The
departure of the group had a permanent negative impact on the hospital's net
income and the recoverability of goodwill.

The third hospital was purchased in December 1991 at a price of approximately
$800,000, with goodwill and other intangible assets on the acquisition of
$778,000.  The hospital generated net income in 1992 of $52,000 and a net loss
in 1993 of $59,000.  The hospital provided 24-hour emergency service under an
arrangement whereby a veterinary emergency group used the hospital space during
the hours that the regular hospital was closed.  The emergency clinic's
presence in the hospital provided substantial indirect benefits to the
hospital's operating results.  In September 1993, the emergency group terminated
its arrangement with the hospital, and the operating results were adversely
impacted.  The Company has determined that emergency services cannot be replaced
and the impact on the hospital will be permanent.

                                     F-25
<PAGE>
 
The Company's goal over the next two years is to minimize the facilities' cash
flow requirements and ultimately bring the facilities to a breakeven status.
The Company's strategy of building a network of hospitals in the markets they
serve will be benefited by the hospitals' ability to provide services to
customers in their vicinity, even though the facilities will not generate
profits.

14.  RESTRUCTURING CHARGE

The operations of Cenvet were merged into VRI's operations to form Vet Research
in March 1995.  The combined operations were  restructured to eliminate
duplicate operating and overhead costs.  The restructuring included the
consolidation of facilities, staff reductions and the consolidation of ancillary
operations.  In connection with the restructuring, the Company recorded a charge
of $1,086,000 in the first quarter of 1995 to accrue the estimated costs
associated with the restructuring, consisting primarily of lease termination and
severance costs.

The following is a summary of the restructuring costs:
<TABLE>
<CAPTION>
                                   1995
                                ----------
<S>                             <C>
  Employee severance costs...   $  468,000
  Lease commitments..........      433,000
  Other......................      185,000
                                ----------
                                $1,086,000
                                ==========
</TABLE>

During 1995, the Company utilized $237,000 of the reserve for restructuring.  At
December 31, 1995, $849,000 of the restructuring reserves remained on the
Company's balance sheet.

15.  LINES OF BUSINESS

The Company classifies its business operations into three segments:  Animal
Hospital, Premium Pet Food and Laboratory.  Prior to January 1993, the Company's
principal line of business was owning and operating animal hospitals.  On
January 1, 1993, the Company formed a joint venture, Vet's Choice, to develop,
market and distribute new pet products and services (Note 4).  Vet's Choice
began generating revenue in March 1994 when it commenced distribution of its
first product line.  In March 1994, the Company acquired Professional Animal
Laboratory and combined its existing laboratory to form the Laboratory segment.
<TABLE>
<CAPTION>
 
                                 Animal    Premium                  Corporate &
(In thousands)                 Hospital   Pet Food    Laboratory   Eliminations     Total
                               --------   ---------   ----------   -------------   --------
<S>                            <C>        <C>         <C>          <C>             <C>
  1995
  Revenues..................    $51,437    $ 4,756       $37,606        $(1,727)   $ 92,072
  Gross profit..............      9,381      1,551        13,629             --      24,561
  Restructuring cost........         --         --         1,086             --       1,086
  Operating income (loss)...      7,455     (2,573)        8,359         (3,890)      9,351
  Identifiable assets.......     62,152      3,854        29,798         45,661     141,465
 
  1994
  Revenues..................    $31,846    $   996       $10,150        $  (759)   $ 42,233
  Gross profit..............      6,252        349         3,577             --      10,178
  Operating income (loss)...      5,123     (3,094)        2,563         (2,796)      1,796
  Identifiable assets.......     31,995      3,599        13,532          3,073      52,199
</TABLE>

                                     F-26
<PAGE>
 
16.  SUBSEQUENT EVENTS

During the first quarter of 1996 through March 19, 1996, the Company purchased
six veterinary hospitals and a veterinary diagnostic laboratory in separate
transactions for a total consideration (including acquisition costs) of
$22,224,000, consisting of $9,650,000 in cash, $6,151,000 in notes payable,
242,926 shares of VCA common stock with a value of $3,868,000 and the assumption
of liabilities totaling $2,555,000.

On February 27, 1996, the Company signed a definitive merger agreement with
Pets' Rx, Inc. ("Pets' Rx"), pursuant to which the Company will acquire all of
the outstanding securities of Pets' Rx.  Pets' Rx owns and operates 16
veterinary hospitals in the San Jose and Sacramento, California and the Las
Vegas, Nevada markets.  Under the terms of the merger, the stockholders of Pets'
Rx will receive approximately 970,000 shares of the Company's common stock
(subject to adjustment).  The Company expects that the merger will be
consummated in the second quarter of 1996.  The merger will be accounted for as
a pooling of interests.  If consummated, the merger will provide the Company
with entry into the Las Vegas, Nevada market and will strengthen the Company's
presence in Northern California.

Consummation of the merger with Pets' Rx is subject to certain significant
conditions.   Consequently, the merger of Pets' Rx and the Company may never be
consummated.

On March 21, 1996, the Company signed a definitive merger agreement with The Pet
Practice, Inc. ("TPP"), pursuant to which the Company will acquire all of the
outstanding securities of TPP.  TPP operates 86 veterinary hospitals in 11
states.

Under the terms of the agreement, each share of TPP common stock will be
converted into a fraction of a share of VCA common stock determined by a
reference to the average closing price of VCA common stock over the twenty
trading days ending on the third day before the shareholder meetings at which
the stockholders of VCA and TPP will consider the merger.  If the average price
of the VCA common stock ranges from $25 to $30 per share, the exchange ratio
shall be determined by dividing $10 by the average price of the VCA common
stock, resulting in a valuation of $10 per share of TPP common stock throughout
the range.  If the average closing price of the VCA common stock is less than
$24 per share, the exchange ratio will be increased (from 0.395 shares at $24
per share) by 0.005 for each dollar of such reduction down to $18.50 of VCA
common stock, and if the average price of VCA common stock is more than $31 per
share, the exchange ratio shall be reduced (from 0.3350 at $31 per share) by
0.005 for each dollar of such increase, up to $49.00 per share.  No further
adjustment shall be made if the price of VCA stock shall be less than $18.50.
In each case, a proportionate reduction or increase, as the case may be, shall
be made if the price of VCA common stock is less than a round dollar.  If the
average price of the VCA common stock is greater than $49.00, the exchange ratio
should be determined by dividing $12.005 by the average price.  By way of
illustration, at $23 per share of VCA common stock, the exchange ratio shall be
0.400, resulting in a valuation of $9.20 per share of TPP common stock.  At
$32.00 per share of VCA common stock, the exchange ratio shall be 0.330,
resulting in a valuation of $10.56 per share of TPP common stock.  The Company
expects that the merger will be consummated in the second quarter of 1996.  The
merger will be accounted for as a purchase.  Each party has the right to
terminate the definitive agreement if the average price of VCA common shares is
$18.50 or less.

Consummation of the merger is subject to certain significant conditions.
Consequently, the merger of VCA and TPP may never be consummated.

                                     F-27
<PAGE>
 
REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS


To Veterinary Centers of America, Inc.:

     We have audited the accompanying supplemental combined balance sheets of
Veterinary Centers of America, Inc. (a Delaware corporation), and subsidiaries,
as of December 31, 1995 and 1994, and the related supplemental combined
statements of operations, changes in stockholders' equity and cash flows for
each of the three years in the period ended December 31, 1995 and the balance
sheet of Pets' Rx, Inc. as of December 31, 1995, and the related statements of
operations, changes in stockholders' equity and cash flows for the year then
ended included in the supplemental combined financial statements of Veterinary
Centers of America, Inc.  The supplemental combined historical statements give
retroactive effect to the merger with Pets' Rx, Inc., on June 19, 1996, which
subsequently will be accounted for as a pooling of interests as described in
Note 1.  These supplemental financial statements are the responsibility of the
Companies' management.  Our responsibility is to express an opinion on these
supplemental financial statements based on our audits.

     We did not audit the 1994 and 1993 financial statements of Pets' Rx, Inc.,
included in the supplemental combined financial statements of Veterinary Centers
of America, Inc., which statements reflect total assets and revenues
constituting 25 percent and 19 percent, respectively, in 1994 and 19 percent of
revenue in 1993, of the related supplemental combined totals.  These statements
were audited by other auditors whose reports thereon has been furnished to us,
and our opinion expressed herein, insofar as it relates to the amounts included
for Pets' Rx, Inc., in 1994 and 1993 is based solely upon the reports of the
other auditors.

     We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits and the reports of the other auditors provide a
reasonable basis for our opinion.

     In our opinion, based upon our audits and the reports of the other
auditors, the supplemental combined financial statements referred to above
present fairly, in all material respects, the combined financial position of
Veterinary Centers of America, Inc. and Pets' Rx, Inc. as of December 31, 1995
and 1994, and the results of their operations and their cash flows for each of
the three years in the period ended December 31, 1995, after giving retroactive
effect to the merger with Pets' Rx, Inc. as described in Note 1, in conformity
with generally accepted accounting principles.



/s/ Arthur Andersen LLP

ARTHUR ANDERSEN LLP


Los Angeles, California
June 19, 1996

                                     F-28
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                     SUPPLEMENTAL COMBINED BALANCE SHEETS
                         AT DECEMBER 31, 1995 AND 1994
                         AND MARCH 31, 1996 (UNAUDITED)

                                     ASSETS
<TABLE>
<CAPTION>
                                                                                            DECEMBER 31,             
                                                                                     -----------------------------      MARCH 31,   
                                                                                         1995            1994             1996 
                                                                                     -------------    ------------    -------------
CURRENT ASSETS:                                                                                                        (Unaudited)

<S>                                                                                  <C>              <C>             <C>
Cash and equivalents...........................................................       $ 47,551,000     $ 7,807,000     $ 37,866,000
Accounts receivable, less allowance for uncollectible accounts of $1,671,000
 and $797,000 at December 31, 1995 and 1994, respectively, and
 $1,881,000 at March 31, 1996 (unaudited)......................................          6,508,000       1,955,000        8,994,000
Inventory, prepaid expenses and other..........................................          3,984,000       1,326,000        4,121,000
Deferred income taxes..........................................................          1,175,000         438,000        1,126,000
Prepaid income taxes...........................................................            494,000         172,000          730,000
                                                                                      ------------     -----------     ------------
 Total current assets..........................................................         59,712,000      11,698,000       52,837,000
PROPERTY, PLANT AND EQUIPMENT, NET.............................................         17,695,000      12,692,000       19,974,000

OTHER ASSETS:
 Goodwill, net.................................................................         66,943,000      38,264,000       85,392,000
 Covenants not to compete, net.................................................          5,210,000       2,646,000        5,852,000
 Building purchase options.....................................................          1,087,000         837,000          887,000
 Notes receivable..............................................................            978,000       1,080,000        1,283,000
 Deferred costs and other......................................................          1,791,000         685,000        2,129,000
                                                                                      ------------     -----------     ------------
                                                                                      $153,416,000     $67,902,000     $168,354,000
                                                                                      ============     ===========     ============
                     LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
Current portion of long-term obligations.......................................      $   7,421,000     $ 5,552,000     $  8,730,000
Accounts payable...............................................................          5,930,000       2,980,000        6,855,000
Accrued payroll and taxes......................................................          2,207,000       1,191,000        2,531,000
Other accrued liabilities......................................................          4,705,000       2,498,000        4,264,000
                                                                                      ------------     -----------     ------------
 Total current liabilities.....................................................         20,263,000      12,221,000       22,380,000
LONG TERM OBLIGATIONS, less current portion....................................         36,778,000      25,057,000       38,807,000
GUARANTEED PURCHASE PRICE CONTINGENTLY PAYABLE IN
 CASH OR COMMON STOCK..........................................................                             72,000
DEFERRED INCOME TAXES..........................................................          1,301,000         148,000        1,538,000
MINORITY INTEREST..............................................................          4,856,000       5,034,000        5,112,000
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
 Preferred stock; $.001 par value; Authorized -- 1,000,000 shares:
  Issued and outstanding -- 583,333 at December 31, 1995 and 1994..............              1,000           1,000            1,000
 Common stock; $.001 par value; Authorized -- 30,000,000 shares:
  Issued and outstanding -- 12,845,831 and 6,248,126 at
  December 31, 1995 and 1994 respectively, and 13,828,444
  at March 31, 1996 (unaudited)................................................             13,000           6,000           14,000
 Additional paid-in capital....................................................         99,685,000      33,630,000      109,223,000
 Accumulated deficit...........................................................         (9,481,000)     (8,267,000)      (8,721,000)
                                                                                      ------------     -----------     ------------
  Total stockholders' equity...................................................         90,218,000      25,370,000      100,517,000
                                                                                      ------------     -----------     ------------
                                                                                      $153,416,000     $67,902,000     $168,354,000
</TABLE>

   The accompanying notes are an integral part of these supplemental combined
                                balance sheets.

                                     F-29
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                 SUPPLEMENTAL COMBINED STATEMENTS OF OPERATIONS
              FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
         AND THE THREE MONTHS ENDED MARCH 31, 1996 AND 1995 (UNAUDITED)
<TABLE>
<CAPTION>

                                                              Years Ended December 31,               Three Months Ended March 31,
                                                  ------------------------------------------------   -----------------------------
                                                       1995              1994             1993           1996             1995
                                                  --------------    -------------    -------------   -------------    ------------
                                                                                                             (Unaudited)
<S>                                               <C>               <C>              <C>             <C>              <C>
Revenues.......................................     $107,694,000      $51,871,000      $31,098,000     $35,232,000     $18,652,000
Direct costs...................................       80,747,000       40,834,000       25,562,000      26,710,000      14,741,000
                                                    ------------      -----------      -----------     -----------     -----------
Gross profit...................................       26,947,000       11,037,000        5,536,000       8,522,000       3,911,000
Selling, general and administrative............       13,036,000        8,704,000        4,916,000       3,844,000       2,761,000
Depreciation and amortization..................        4,144,000        2,065,000        1,410,000       1,235,000         740,000
Restructuring charge...........................        1,086,000                                                         1,086,000
Writedown of assets............................        2,148,000                         4,506,000
                                                    ------------      -----------      -----------     -----------     -----------
Operating income (loss)........................        6,533,000          268,000       (5,296,000)      3,443,000        (676,000)
Interest income................................          828,000          404,000          469,000         388,000         145,000
Interest expense...............................        3,377,000        2,388,000        1,225,000         901,000         737,000
                                                    ------------      -----------      -----------     -----------     -----------
Income (loss) before minority interest, income
 taxes and cumulative effect of accounting
 change........................................        3,984,000       (1,716,000)      (6,052,000)      2,930,000      (1,268,000)
Minority interest in income (loss) of
 subsidiaries..................................        2,960,000         (540,000)        (334,000)      1,371,000          31,000
                                                    ------------      -----------      -----------     -----------     -----------

Income (loss) before income taxes and
 cumulative effect of accounting change........        1,024,000       (1,176,000)      (5,718,000)      1,559,000      (1,299,000)
Provision (benefit) for income taxes...........        2,238,000          731,000         (152,000)        799,000        (263,000)
                                                    ------------      -----------      -----------     -----------     -----------
(Loss) income before cumulative effect of
 accounting change.............................       (1,214,000)      (1,907,000)      (5,566,000)        760,000      (1,036,000)
Cumulative effect of accounting change.........                                            221,000
                                                    ------------      -----------      -----------     -----------     -----------
Net (loss) income..............................     $ (1,214,000)     $(1,907,000)     $(5,345,000)    $   760,000     $(1,036,000)
                                                    ============      ===========      ===========     ===========     ===========

(LOSS) EARNINGS PER SHARE:
(Loss) earnings before cumulative effect of
 accounting change.............................           $(0.11)          $(0.26)          $(0.93)          $0.05          $(0.14)
Cumulative effect of accounting change.........                                               0.03
                                                    ------------      -----------      -----------     -----------     -----------
Net (loss) earnings per common share...........           $(0.11)          $(0.26)          $(0.90)          $0.05          $(0.14)
                                                    ============      ===========      ===========     ===========     ===========
Average common shares used for computing
 (loss) earnings per share.....................       11,504,000        7,233,000        5,966,000      15,911,000       7,666,000
                                                    ============      ===========      ===========     ===========     ===========
</TABLE>

   The accompanying notes are an integral part of these supplemental combined
                             financial statements.

                                     F-30
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

            SUPPLEMENTAL COMBINED STATEMENTS OF STOCKHOLDERS' EQUITY
              FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
             AND THE THREE MONTHS ENDED MARCH 31, 1996 (UNAUDITED)

<TABLE>
<CAPTION>

                                                     Common Stock         Preferred Stock     Additional      Accumulated
                                              ------------------------  ------------------      Paid-In        Earnings
                                                   Shares      Amount    Shares    Amount       Capital        (Deficit)
                                              -------------  ---------  --------  --------  ------------    -------------
<S>                                           <C>            <C>        <C>       <C>       <C>             <C>
BALANCES, December 31, 1992
As previously stated..........................    5,133,785    $ 5,000   583,000    $1,000    $ 21,541,000    $   752,000
Pooling with Pets' Rx, Inc....................      256,853                                      3,919,000     (1,335,000)
                                                -----------    -------  --------    ------    ------------    -----------
Balances, as restated.........................    5,390,638      5,000   583,000     1,000      25,460,000       (583,000)
Sale of common stock..........................       46,317                                        200,000
Sale of warrants..............................                                                     221,000
Issued under stock option plans...............       39,171                                        149,000
Stock dividend................................        7,680                                        208,000       (208,000)
Net loss......................................                                                                 (5,345,000)
                                                -----------    -------  --------    ------    ------------    -----------
BALANCES, December 31, 1993...................    5,483,806      5,000   583,000     1,000      26,238,000     (6,136,000)
Sale of common stock..........................      125,808                                      3,245,000
Sale of warrants..............................                                                      13,000
Exercise of warrants..........................       55,580                                         55,000
Stock dividend................................        8,256                                        224,000       (224,000)
Stock issued for payment of interest..........       30,841                                        223,000
Issued under stock option plans...............       32,765                                        198,000
Business acquisitions.........................      237,483                                      1,732,000
Conversion of convertible debt................      210,373      1,000                           1,232,000
Settlement of guaranteed purchase price
     contingently payable in cash or common
     stock....................................       63,214                                        470,000
Net loss......................................                                                                 (1,907,000)
                                                -----------    -------  --------    ------    ------------    -----------
BALANCES, December 31, 1994...................    6,248,126      6,000   583,000     1,000      33,630,000     (8,267,000)
Sale of common stock..........................    4,129,616      4,000                          44,058,000
Sale of redeemable warrants...................        4,607                                         58,000
  Exercise of redeemable warrants.............    1,271,508      2,000                           8,894,000
Exercise of warrants issued in connection
 with the Vet Research joint venture..........       50,000                                        550,000
Issued under stock plans......................       29,367                                        209,000
Business acquisitions.........................    1,075,288      1,000                          11,979,000
Conversion of convertible debt................       37,319                                        254,000
Settlement of guaranteed purchase price
     contingently payable in cash or common
     stock....................................                                                      53,000
Net loss......................................                                                                 (1,214,000)
                                                -----------    -------  --------    ------    ------------    -----------
BALANCES, December 31, 1995...................   12,845,831     13,000   583,000     1,000      99,685,000     (9,481,000)
Sale of common stock (unaudited)..............        6,894                                        200,000
  Exercise of redeemable warrants
 (unaudited)..................................      542,431      1,000                           3,855,000
Exercise of warrants issued in connection
 with the Vet Research joint venture
  (unaudited).................................      134,000                                      1,474,000
Issued under stock plans (unaudited)..........       56,363                                        141,000
Business acquisitions (unaudited).............      242,925                                      3,868,000
Net income (unaudited)........................                                                                    760,000
                                                -----------    -------  --------    ------    ------------    -----------
BALANCES, March 31, 1996 (Unaudited)..........   13,828,444    $14,000   583,000    $1,000    $109,223,000    $(8,721,000)
                                                ===========    =======  ========    ======    ============    ===========
</TABLE>

   The accompanying notes are an integral part of these supplemental combined
                             financial statements.

                                     F-31
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                 SUPPLEMENTAL COMBINED STATEMENTS OF CASH FLOWS
              FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
         AND THE THREE MONTHS ENDED MARCH 31, 1996 AND 1995 (UNAUDITED)

<TABLE>
<CAPTION>
                                                                                                           Three Months Ended
                                                                                                                March 31,
                                                                                                     ------------------------------
                                                       1995             1994             1993             1996             1995
                                                  ------------    -------------    -------------    --------------   --------------
                                                                                                             (Unaudited)
<S>                                               <C>              <C>              <C>              <C>              <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
 Net (loss) income.............................    $ (1,214,000)     $(1,907,000)     $(5,345,000)    $    760,000      $(1,036,000)
 Adjustments to reconcile net (loss) income to
  net cash provided by operating activities:
  Depreciation and amortization................       4,144,000        2,065,000        1,410,000        1,235,000          740,000
  Gain on sale of land and building............         (19,000)                                                            (18,000)
  Amortization of debt discount................         454,000           15,000           13,000           72,000            3,000
  Equity contribution for product development
   costs.......................................                                           806,000
  Utilization of acquired NOL carryforwards....          69,000                            40,000
  Writedown of assets..........................       2,148,000                         4,506,000
  Minority interest in income (loss) of
   subsidiary..................................       2,960,000         (540,000)        (600,000)       1,371,000           31,000
  Distributions to minority interest partners..      (4,058,000)        (904,000)        (122,000)        (961,000)         (43,000)
  (Increase) decrease in accounts receivable,
   net.........................................      (2,140,000)        (124,000)          24,000       (1,289,000)      (1,507,000)
  (Increase) decrease in inventory and other...      (1,875,000)        (203,000)          16,000         (374,000)        (925,000)
  (Increase) decrease in prepaid income taxes..        (322,000)        (172,000)          99,000          244,000         (332,000)
  (Increase) decrease in other assets, net.....        (208,000)        (122,000)        (271,000)        (330,000)           7,000
  (Increase) decrease in deferred income tax
   asset.......................................        (737,000)         408,000         (872,000)         286,000           65,000
  Increase in accounts payable and accrued
   liabilities.................................       4,198,000        2,829,000          801,000          208,000        3,026,000
  (Decrease) increase in income taxes payable..                         (337,000)         412,000
  Increase in deferred income tax liability....         437,000           73,000
                                                    -----------      -----------       ----------      -----------     ------------
   Net cash provided by operating activities...       3,837,000        1,081,000          917,000        1,222,000           11,000
                                                    -----------      -----------       ----------      -----------     ------------

CASH FLOWS FROM INVESTING ACTIVITIES:
 Business acquisitions, net of cash acquired...      (9,147,000)      (6,810,000)      (2,161,000)     (12,051,000)      (2,028,000)
 Property, plant and equipment additions, net..      (2,983,000)      (1,166,000)        (809,000)      (1,012,000)        (156,000)
 Sale of marketable securities.................                                           140,000
 Proceeds from sale of land and building.......         600,000                                                             600,000
 Payments for building purchase options........        (250,000)         (60,000)        (250,000)
                                                    -----------      -----------       ----------      -----------     ------------
  Net cash used in investing activities........     (11,780,000)      (8,036,000)      (3,080,000)     (13,063,000)      (1,584,000)
                                                    -----------      -----------       ----------      -----------     ------------

CASH FLOWS FROM FINANCING ACTIVITIES:
 (Repayment of) proceeds from line of credit
  and addition of long-term obligations........      (1,100,000)       1,394,000        1,511,000                        (1,100,000)
 Reduction of long-term obligations and notes
  payable......................................      (6,241,000)      (3,097,000)      (1,908,000)      (3,526,000)      (2,269,000)
 Payments received (advances made) on notes
  receivable...................................         272,000          (43,000)          31,000           12,000          225,000
 Payments on guaranteed purchase price
  contingently payable in cash or common stock.         (19,000)
 Net proceeds from sale of common stock........      44,062,000        3,245,000          200,000          200,000       10,080,000
 Net proceeds from exercise of warrants........                           55,000
 Net proceeds from exercise of redeemable
  warrants.....................................       8,896,000                                          3,855,000        2,108,000
 Proceeds from exercise of warrants issued in
  connection with Vet Research joint venture...         550,000                                          1,474,000
 Proceeds from sale of warrants................                           13,000          221,000
 Proceeds from sale of redeemable warrants.....          58,000
 Proceeds from issuance of common stock under
  stock option plans...........................         209,000          198,000          149,000          141,000            4,000
 Capital contribution of minority interest
  partners.....................................       1,000,000           30,000        2,970,000
                                                    -----------      -----------       ----------      -----------     ------------
   Net cash provided by financing activities...      47,687,000        1,795,000        3,174,000        2,156,000        9,048,000
                                                    -----------      -----------       ----------      -----------     ------------
INCREASE (DECREASE) IN CASH AND EQUIVALENTS....      39,744,000       (5,160,000)       1,011,000       (9,685,000)       7,475,000
CASH AND EQUIVALENTS AT BEGINNING OF YEAR......       7,807,000       12,967,000       11,956,000       47,551,000        7,807,000
                                                   ------------      -----------      -----------     ------------     ------------
CASH AND EQUIVALENTS AT END OF YEAR............    $ 47,551,000      $ 7,807,000      $12,967,000     $ 37,866,000      $15,282,000
                                                   ============      ===========      ===========     ============     ============

</TABLE>

   The accompanying notes are an integral part of these supplemental combined
                             financial statements.

                                     F-32
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

                 SUPPLEMENTAL COMBINED STATEMENTS OF CASH FLOWS
              FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
         AND THE THREE MONTHS ENDED MARCH 31, 1996 AND 1995 (UNAUDITED)
                                  (CONTINUED)

<TABLE>
<CAPTION>
                                                                                                            Three Months
                                                               Years Ended December 31,                    Ended March 31,
                                                     -----------------------------------------    --------------------------------
                                                         1995            1994           1993           1996              1995
                                                     ------------     ----------     ----------   ---------------    -------------
                                                                                                             (Unaudited)
<S>                                                   <C>             <C>             <C>         <C>                <C>
SUPPLEMENTAL DISCLOSURES OF CASH
 FLOW INFORMATION:

Interest paid......................................   $  2,878,000     $ 2,277,000     $ 1,146,000     $   832,000     $   701,000
Taxes paid.........................................      2,688,000         759,000         193,000         269,000           4,000
SUPPLEMENTAL SCHEDULE OF
 NONCASH INVESTING AND FINANCING
 ACTIVITIES:
In connection with acquisitions, assets
 acquired and liabilities assumed were as
 follows:
Fair value of assets acquired......................   $ 43,223,000     $19,584,000     $10,846,000     $23,304,000     $11,571,000
Less: Consideration given
 Cash paid to sellers, net of cash acquired........     (9,147,000)     (6,810,000)     (2,161,000)     (9,875,000)     (2,028,000)
 Cash paid in settlement of
  assumed liabilities..............................                                                     (2,176,000)
 Common stock issued...............................    (11,980,000)     (1,732,000)                     (3,868,000)     (2,300,000)
                                                      ------------     -----------     -----------     -----------     -----------
Liabilities assumed including
 notes payable issued..............................   $ 22,096,000     $11,042,000     $ 8,685,000     $ 7,385,000     $ 7,243,000
                                                      ============     ===========     ===========     ===========     ===========
In connection with the formation of the joint
 venture and partnerships, assets and liabilities
 contributed by the partners were as follows:
Assets.............................................   $  3,467,000     $   330,000     $        --     $   317,000     $ 3,119,000
Liabilities........................................      1,063,000                                                       1,063,000
                                                      ------------     -----------     -----------     -----------     -----------
Non-cash capital contribution of minority
 interest partners.................................   $  2,404,000     $   330,000     $        --      $   317,000     $ 2,056,000
                                                      ============     ===========     ===========     ===========     ===========

Issuance of common stock in exchange for
 convertible debt..................................   $    254,000     $ 1,233,000     $        --     $        --     $        --
                                                      ============     ===========     ===========     ===========     ===========

Settlement of guaranteed purchase price
 through issuance of common stock..................   $     53,000     $   470,000     $        --     $        --     $        --
                                                      ============     ===========     ===========     ===========     ===========

Non-cash increase in long-term obligations due
 to purchase of equipment and building.............   $    262,000     $   164,000     $   860,000     $        --     $   466,000
                                                      ============     ===========     ===========     ===========     ===========

Conversion of accounts payable to notes
 payable...........................................   $    381,000     $        --     $        --     $        --     $        --
                                                      ============     ===========     ===========     ===========     ===========

Payment of accrued interest on notes by
 issuance of common stock..........................   $         --     $   223,000     $        --     $        --     $        --
                                                      ============     ===========     ===========     ===========     ===========
</TABLE>

   The accompanying notes are an integral part of these supplemental combined
                             financial statements.

                                     F-33
<PAGE>
 
              VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

                               DECEMBER 31, 1995

         (Information with respect to the unaudited three months ended
     March 31, 1996 and 1995 is not covered by report of independent public
                                  accountants)

1.  BASIS OF PRESENTATION, BUSINESS AND ORGANIZATION

The Merger

 In June 1996, Veterinary Centers of America, Inc. ("VCA" or the "Company")
merged with Pets' Rx, Inc. (Pets' Rx), in a transaction to be accounted for as a
pooling of interests (the "Merger").  On or about August 15, 1996, VCA will
restate its historical financial statements to reflect the pooling of interests
transaction.  Those restated financials will resemble these supplemental
combined consolidated financial statements in all material aspects.  These
supplemental financial statements are presented to provide the reader with an
understanding of the combined historical results of VCA.


 Pursuant to the Merger, each share of Pets' Rx common stock was converted into
 .08617 shares of VCA common stock.  In aggregate, 6,323,294 million shares of
Pets' Rx common stock were converted into 544,880 shares of VCA common stock.
Each share of Pets' Rx redeemable convertible preferred stock outstanding
immediately prior to the merger was converted into 118,329 shares of VCA common
stock.  Each share of convertible preferred stock outstanding immediately prior
to the Merger was converted into 137,872 shares of VCA common stock.  Previously
reported financial information for VCA and Pets' Rx for each of the three years
in the period ended December 31, 1995, is shown in the table below.  To conform
to consistent methods of accounting, adjustments of historical data were made.
Among these were the adjustments related to the allocation of intangible assets
in connection with purchase transactions and the related amortization and the
writedown of intangible assets resulting from conforming to VCA's method of
analyzing the realization of goodwill utilizing the undiscounted net income
method.
<TABLE>
<CAPTION>
 
 
(In thousands)                                 Years Ended December 31,
                                        -----------------------------------
                                             1995        1994        1993
                                        -----------    ---------   --------
<S>                                     <C>            <C>         <C>
Historical VCA net income (loss)          $ 2,564       $   589     $(1,858)
Historical Pets' Rx net loss               (1,977)       (2,805)     (1,522)
                                          -------       -------     -------
Historical combined net income (loss)         587        (2,216)     (3,380)
Amortization of assets                        347           309         108
Writedown of assets                        (2,148)           --      (2,073)
                                          -------       -------     -------
Restated combined net loss                $(1,214)      $(1,907)    $(5,345)
                                          =======       =======     =======
</TABLE>

Veterinary Centers of America, Inc. Formation

 Veterinary Centers of America, Inc. ("VCA" or the "Company"), a Delaware
corporation, was founded in 1986 and is a leading companion animal health care
company.  The Company operates one of the largest networks of free-standing,
full service animal hospitals in the country and one of the largest networks of
veterinary-exclusive diagnostic laboratories in the nation.  The Company also
markets both a life-stage and a therapeutic line of premium pet foods through
Vet's Choice, a joint venture with Heinz Pet Products, an affiliate of H.J.
Heinz Company.

 At June 19, 1996, the Company owned 80 animal hospitals, 19 of which were
located in Northern California, 18 in Southern California, eight in
Pennsylvania, six in Massachusetts, five in Nevada, four in Maryland, three in
each of Alaska, Florida and New Mexico, two in each of Colorado, Utah and
Virginia, and one in each of Arizona, Georgia, Hawaii, Illinois and Delaware.
The Company's animal hospitals provide primary care, diagnostic, surgical and
boarding services for animals.

                                     F-34
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

 In March 1994, the Company expanded its presence in the laboratory business
with the acquisition of a 70 percent interest in Professional Animal Laboratory
("PAL").  During 1995, the Company further expanded its laboratory business with
the acquisition of Cenvet, Inc. ("Cenvet") and its subsequent contribution to
Vet Research Laboratories, LLC. ("Vet Research").  Also in 1995, the Company
acquired four other veterinary diagnostic laboratories, as well as the remaining
30 percent interest in PAL.  The Company's laboratories serve over 8,000 animal
hospitals located in 40 states.

 In January 1993, the Company formed a joint venture, Vet's Choice, to develop,
manufacture, market and distribute new pet products and services.  The joint
venture was in the development stage during all of 1993 and consequently
generated no revenues or gross profit in 1993 (Note 4).  The joint venture
distributes two lines of premium pet food, Select Balance, a life-stage diet and
Select Care, a therapeutic line.  Select Balance is sold to veterinary hospitals
and clinics, as well as pet stores.  Select Care is sold  only to veterinary
hospitals.

Pets' Rx Formation

 Pets' Rx was incorporated in Delaware on May 28, 1991.  The Company is engaged
in the acquisition and operation of veterinary clinics.  As of December 31,
1995, the Company operates 16 clinics in the San Jose and Sacramento,
California, and Las Vegas, Nevada, markets.

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

a.  Principles of Consolidation

 The supplemental combined financial statements include the financial position
and results of operations of VCA and all of its subsidiaries combined with the
financial position and results of operations of Pets' Rx and all of its
subsidiaries.  As previously discussed, these supplemental combined financial
statements reflect how VCA's consolidated financial statements will look
following the June 19, 1996 restatement for the merger with Pets' Rx.

b.  Interim Accounting Policy

 The accompanying unaudited supplemental combined financial statements have not
been audited by independent public accountants, but in the opinion of VCA and
Pets' Rx management, such unaudited statements include all adjustments
(consisting only of normal recurring accruals) necessary for a fair presentation
of the combined financial positions of VCA and Pets' Rx as of March 31, 1996 and
the results of their operations and cash flows for the three months ended March
31, 1995 and 1996.  Although the management of VCA and Pets' Rx believes that
the disclosures in these supplemental combined financial statements are adequate
to make the information presented not misleading, certain information normally
included in financial statements prepared in accordance with generally accepted
accounting principles has been condensed or omitted pursuant to the rules and
regulations of the Securities and Exchange Commission.  The results of
operations for the three months ended March 31, 1995 and 1996 are not
necessarily indicative of the results to be expected for the full year.

c.  Cash Equivalents

 For purposes of the balance sheets and statements of cash flows, the Company
considers only highly liquid investments to be cash equivalents.  Of its cash on
hand at December 31, 1995 and 1994, $1,907,000 and $2,982,000, respectively, was
restricted for use in the conduct of the Vet's Choice joint venture.

d.  Inventory

 Inventory is valued at the lower of cost or market using the first-in, first-
out method.

                                     F-35
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

e.  Property, Plant and Equipment

 Property, plant and equipment is recorded at cost.  Capitalized equipment
leases are recorded at the lower of the present value of the minimum lease
payments or the fair value of the equipment at the beginning of the lease term.

 Depreciation is recorded using the straight-line method over the estimated
useful lives of property and equipment (principally five to seven years) and
capitalized equipment leases (principally five years).  Leasehold improvements
are amortized over the lives of the leases (principally 10 years).  Costs of
normal repairs and maintenance are expensed as incurred.

Property, plant and equipment consisted of:
<TABLE>
<CAPTION>
 
                                          1995            1994
                                      ------------   ------------- 
<S>                                   <C>             <C>
Land...............................    $ 2,795,000     $ 2,328,000
Building and improvements..........      6,544,000       5,378,000
Leasehold improvements.............      2,410,000       1,458,000
Furniture and equipment............      8,633,000       4,909,000
Capitalized equipment leases.......      1,334,000         532,000
                                       -----------     -----------
                                        21,716,000      14,605,000
Less -- Accumulated depreciation...     (4,021,000)     (1,913,000)
                                       -----------     ----------- 
                                       $17,695,000     $12,692,000
                                       ===========     ===========
</TABLE>

 Accumulated depreciation on equipment held under capital leases amounted to
$303,000 and $170,000 at December 31, 1995 and 1994, respectively.

f.  Goodwill and Other Intangible Assets

 Goodwill relating to acquisitions represents the purchase price paid and
liabilities incurred in excess of the fair market value of net assets acquired.
Goodwill is amortized over the expected period to be benefited, not exceeding 40
years, on a straight-line basis.

 Subsequent to its acquisitions, the Company continually evaluates whether
events and circumstances have occurred that indicate the remaining estimated
useful life of goodwill may warrant revision or that the remaining balance of
goodwill may not be recoverable.  When factors indicate that goodwill should be
evaluated for possible impairment, the Company uses an estimate of the related
facility's undiscounted net income over the remaining life of the goodwill in
measuring whether the goodwill is recoverable (Note 13).

 Other intangible assets principally include covenants not to compete.  The
value assigned to the covenants not to compete is amortized on a straight-line
basis over the term of the agreements (principally 5 to 10 years).

 Accumulated amortization of goodwill and covenants not to compete and other at
December 31, 1995 is $3,563,000 and $2,986,000, respectively.  Accumulated
amortization of goodwill and covenants not to compete and other at December 31,
1994 is $3,792,000 and $1,259,000, respectively.

 In March 1995, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 121 "Accounting for the Impairment of Long-
Lived Assets and for Long-Lived Assets to be Disposed Of."  The Statement
requires that long-lived assets and certain identifiable intangibles held and
used by an entity be reviewed for impairment whenever events or changes in
circumstances indicate that the carrying amount of an asset may not be
recoverable.  The Statement was adopted by the Company

                                     F-36
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

on January 1, 1996.  The Company does not expect implementation of this
statement to have a material effect on its financial position or its results of
operations.

g.  Investments

 Effective January 1, 1994, the Company adopted Statement of Financial
Accounting Standards No. 115, "Accounting For Certain Investments in Debt and
Equity Securities," which establishes standards of financial accounting and
reporting for investments in equity securities that have readily determinable
fair values and for all investments in debt securities.  The adoption of this
Statement did not  have a material effect on the financial position or results
of operations of the Company.

h.  Accounting Change

 Effective January 1, 1993, the Company adopted Statement of Financial
Accounting Standards No. 109, "Accounting For Income Taxes," which requires
recognition of deferred tax liabilities and assets for the expected future tax
consequences of events that have been included in the financial statements or
tax returns.  Under this method, deferred tax liabilities and assets are
determined based on the difference between the financial statement and tax basis
of assets and liabilities using enacted tax rates in effect for the year in
which the differences are expected to reverse (Note 11).

 The cumulative effect of this accounting change, which resulted in recognizing
previously unrecognized tax benefits for years prior to January 1, 1993,
decreased the net loss for 1993 by $221,000.

i.  Reclassifications

 Certain 1994 balances have been reclassified to conform with the 1995 financial
statement presentation.

3.  ACQUISITIONS AND DISPOSITIONS

 During 1996, through June 19, 1996, the Company purchased 11 veterinary
hospitals and three veterinary diagnostic laboratories in separate transactions.
In connection with the acquisitions which were accounted for as a purchase, the
aggregate consideration (including acquisition costs) was $28,718,000 consisting
of $13,614,000 in cash, $8,066,000 in long-term obligations, 242,926 shares of
VCA common stock with a value of $3,868,000 and the assumption of liabilities
totalling $3,170,000.  In connection with the two acquisitions which were
treated as a pooling of interests, VCA issued 151,010 shares of VCA common
stock.  Additionally, on June 19, 1996 the Company consummated a merger with
Pets' Rx for 801,081 shares of VCA common stock.  The merger with Pets' Rx will
be accounted for as a pooling of interests.

 During 1995, the Company purchased 25 animal hospitals for an aggregate
consideration (including acquisition costs) of $29,019,000, consisting of
$6,436,000 in cash, $10,859,000 in debt, 836,576 shares of common stock of the
Company, with a value of $9,780,000, and the assumption of liabilities totaling
$1,944,000.  In addition, the Company paid $250,000 to acquire an option to
purchase the land and building of two of the hospitals.

 Also during 1995, the Company purchased substantially all of the assets of
Cenvet, a full-service veterinary diagnostic laboratory, four other veterinary
diagnostic laboratories and the remaining 30 percent interest in PAL, for an
aggregate consideration of $13,986,000, including acquisition costs, consisting
of $2,671,000 in cash, $8,633,000 in long-term obligations, 238,712 shares of
VCA common stock, with a value of $2,200,000 and the assumption of liabilities
totaling $482,000.

 On March 20,1995, the Company and Vet Research, Inc., ("VRI"), formed Vet
Research Laboratories, LLC ("Vet Research").  In connection with the formation
of Vet Research, VRI contributed all of the assets and certain of the
liabilities of VRI's full-service veterinary diagnostic laboratory located in
Farmingdale, New York.  The Company contributed substantially all of the assets
and certain of the liabilities of Cenvet for a 51 percent controlling interest
in the joint venture (Note 4).

 In connection with the formation of Vet Research, the Company issued warrants
to purchase 363,636 shares of the common stock of the Company at $11.00 per
share.  The warrants were purchased at $0.001 per warrant and are exercisable
until the fifth day

                                     F-37
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

following the last day upon which the Company is permitted to close the purchase
of VRI's interest in Vet Research  pursuant to the VCA Option Agreement.

 In 1994, VCA purchased four veterinary hospitals for a total consideration
(including acquisition costs) of $5,754,000 consisting of $1,329,000 in cash,
$3,663,000 in non-recourse promissory notes payable, 91,996 shares of VCA common
stock with a value of $680,000, and the assumption of liabilities totaling
$82,000.  In addition, the Company paid $60,000 to acquire an option to purchase
the land and building of one of the hospitals.

 In 1994, the Company acquired substantially all of the assets and assumed
certain of the liabilities of PAL, a full-service veterinary laboratory, located
in Irvine, California.  In connection with the purchase, the Company also
acquired from a principal shareholder of PAL, the real property and building
occupied by the business of PAL.  The net consideration (including acquisition
costs) paid by the Company in connection with these transactions, totaling
$9,799,000, consisted of $4,619,000 in cash, $3,446,000 in notes payable,
143,333 shares of VCA common stock with a value of $1,037,000, and the
assumption of liabilities totaling $697,000.

 The non-recourse notes payable, with a principal amount of $3,663,000, to the
previous owners of the hospitals are secured by the assets of the acquired
hospitals.  The fair market value of the tangible assets acquired, including
accounts receivable, supplies, inventory and hospital equipment, totals
approximately $360,000.

 In 1993, VCA purchased six veterinary hospitals for a total consideration of
$4,113,000 consisting of $1,021,000 in cash, $2,967,000 in non-recourse notes
payable and the assumption of liabilities totaling $125,000.  In addition, the
Company paid $250,000 to acquire options to purchase the land and building of
two of the hospitals.  The obligations of the Company to the previous owners
pursuant to the non-recourse notes are secured by the assets of the companies
acquired.  The fair market value of the tangible assets acquired including
accounts receivable, supplies, inventory and hospital equipment, totals
approximately $295,000.  During 1993, the Company exercised its option to
purchase the land and building of one of its animal hospitals for total
consideration of approximately $1,296,000 consisting of a $436,000 option
payment made in 1992 and the assumption of a mortgage payable in the amount of
$860,000.

 All 1993 and 1994 acquisitions have been accounted for using the purchase
method of accounting. The operations of the acquired companies are included in
the accompanying consolidated financial statements from the date of acquisition.

 Since its inception, Pets' Rx has completed the acquisition of 19 veterinary
clinics (of which three have been merged into other clinics).  All of the
acquisitions were accounted for using the purchase method of accounting;
accordingly, the costs of these acquisitions have been allocated to assets
acquired based on their fair value at date of acquisition.  The results of the
acquired clinics are included in Pets' Rx results commencing from the date of
acquisition.

 During 1995, Pets' Rx acquired a veterinary hospital for a total consideration
of $218,000 consisting of $40,000 in cash, $25,000 in a secured promissory note
payable, $15,000 payable under covenants not to compete, $31,000 payable under
an assumed lease obligation, and $107,000 in other liabilities.

 During 1995, a limited liability company (LLC) was formed by combining a
veterinary clinic owned by Pets' Rx with the practice of another veterinary
clinic owned by an unrelated party. Certain assets were contributed by each
party to form the new entity, which is not liable for any contracts or for any
indebtedness relating to the predecessor clinics. The Company has an 80%
interest in the LLC.

 During 1994, Pets' Rx completed the acquisition of six veterinary hospitals for
total consideration of $4,031,000, consisting of $862,000 in cash, $2,529,000 in
secured promissory notes payable, $325,000 payable under covenants not to
compete, 2,154 shares of common stock valued at $15,000 and the assumption of
$300,000 of notes payable.

 During 1993, Pets' Rx completed the acquisition of four veterinary clinics for
total consideration of $6,733,000 consisting of $1,140,000 in cash, $5,350,000
in secured promissory notes payable, $200,000 payable under covenants not to
compete, and the assumption of $43,000 in trade and payroll liabilities.

                                     F-38
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

 The unaudited pro forma results listed below reflect purchase price accounting
adjustments assuming 1994, 1995 and 1996 acquisitions (through June 19, 1996)
occurred at January 1, 1994. The pro forma results are not necessarily
indicative of what actually would have occurred if the acquisitions had been in
effect for the entire periods presented. In addition, they are not intended to
be a projection of future results and do not reflect any efficiencies that might
be achieved from the combined operations.
<TABLE>
<CAPTION>
 
                                  UNAUDITED PRO FORMA INFORMATION
                                  -------------------------------
                                      YEARS ENDED DECEMBER 31,      
                                        1995            1994        
                                  --------------     ------------   
<S>                               <C>                <C>             
Revenue.........................    $127,933,000     $113,655,000   
Net income (loss)...............       1,048,000           (4,000)  
Net earnings (loss) per share...    $       0.08     $      (0.00)   
</TABLE> 
 
4.  JOINT VENTURES

 In January 1993, the Company entered into a joint venture with Heinz Pet
Products, Vet's Choice, to develop, manufacture and market new pet products and
services.  The Company obtained a 50.5 percent controlling interest in the joint
venture for a capital contribution of $3,030,000 in cash and is the managing
general partner.  Heinz Pet Products  ("HPP"), contributed $2,970,000 in cash
for a 49.5 percent minority interest in the joint venture.  Under the terms of
the partnership agreement, HPP also agreed to make an additional capital
contribution of their product development costs of up to $1 million.  The actual
costs incurred during 1993 were $806,000.  Such costs were expensed and credited
to the minority interest partner's equity account.  Commencing January 1, 1996
the joint venture will make preferential distributions to HPP of any
distributable cash in excess of $3 million in any fiscal year until such time as
HPP has received preferential distributions amounting to the total development
costs that it contributed.  As provided by the partnership agreement, the
Company and Heinz Pet Products each contributed $1 million to the joint venture
in the third quarter of 1995.  The joint venture agreement between the Company
and HPP provides for restrictions on the transfer of each partner's respective
interest in the joint venture and for reciprocal buy-sell provisions.  Heinz Pet
Products has agreed to lend Vet's Choice up to $1.0 million at its bank prime
rate plus one-half percent for working capital.

 The Company operates Vet Research in a joint venture with VRI.  Vet Research's
operating results have been accounted for as part of the consolidated operations
of the Company.  Distributions of distributable cash will be made pursuant to a
formula contained in the operating agreement between the Company and VRI.
Pursuant to that formula, during each contract year, the first $1.5 million of
distributable cash is distributed to VRI; the next $3 million of distributable
cash is distributed to the Company; and the remaining distributable cash is
distributed 25 percent to the Company and 75 percent to VRI.  The Company has
recorded minority interest expense related to the joint venture based on the
estimated percentage of annual income which will be distributed to the minority
interest partner pursuant to the operating agreement.  The estimate is reviewed
and adjusted on a quarterly basis.  The 1995 results include minority interest
expense of 52.4 percent of Vet Research's income.

 The Company has an option pursuant to an agreement with VRI to acquire VRI's
entire interest in Vet Research for a purchase price as computed in accordance
with the operating agreement.  The Company's option is exercisable January 1,
1997 through January 31, 1997.  If the Company does not exercise its option, VRI
has an option to acquire the Company's interest in Vet Research.

                                     F-39
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

5.  LONG-TERM OBLIGATIONS

Long-term obligations consisted of the following at December 31, 1995 and 1994:
<TABLE>
<CAPTION>
                                                                                           1995          1994
                                                                                        -----------   ----------
<S>                                                                                     <C>           <C>
8 percent note payable, convertible into VCA common stock at $12.50 per
  share, due through 1997, secured by certain fixed and intangible assets............   $    57,000   $   86,000
5 percent note payable, convertible into VCA common stock at $15.00 per
  share due through 1997, secured by stock of certain subsidiaries...................       196,000      391,000
11.2 percent note payable due through 1997, secured by assets
  of a certain subsidiary............................................................       408,000      483,000
Adjustable rate note payable, interest at the treasury bill rate (6.3 percent
  at December 31, 1995) adjusted annually, due through June 2000 (discounted
  at 6.5 percent)....................................................................       300,000      355,000
Obligation due monthly through May 2000, secured by assets of certain
  subsidiary (discounted at 6.5 percent).............................................       230,000      273,000
Obligation due quarterly through 1997, (discounted at 8.75 percent)..................       361,000           --
Obligation due quarterly through 2002, secured by assets of certain
  subsidiary (discounted at 8.75 percent)............................................     2,580,000           --
Adjustable rate note payable, interest at the bank prime rate plus 0.5 percent,
  (capped at 8.5 percent at December 31, 1995), adjusted annually, due through
  2000, secured  by stock of a certain subsidiary....................................       592,000      698,000
3 percent note payable, converted into VCA common stock in June 1995
  at $7.00 per share.................................................................            --      175,000
Adjustable rate notes payable, interest at the bank prime rate, adjusted annually
  (capped at 8.0 percent at December 31, 1995), various maturities through 2000,
  secured by assets and stock of certain subsidiaries................................     2,516,000    2,899,000
Adjustable rate notes payable, interest at the bank prime rate plus 1 percent
  (8.0 percent to 9.5 percent at December 31, 1995), various maturities through
  2002, secured by assets and stock of certain subsidiaries..........................       510,000      589,000
6 percent notes payable, due through 2002, secured by stock of certain subsidiary....       641,000      760,000
7 percent and 7.5 percent notes payable, due through 2007, secured by
  assets and stock of certain subsidiaries...........................................    10,953,000    3,034,000
8 percent notes payable, various maturities through 2006, secured by stock of
  certain subsidiaries...............................................................     6,915,000      339,000
9 percent and 9.8 percent notes payable, various maturities through 2005,
  secured by assets of certain subsidiary and building...............................       898,000           --
Notes payable and other obligations, various maturities through 1997, secured
  by land, building and stock of certain subsidiaries (discounted at 10 to
  12 percent)........................................................................       299,000      471,000
10 percent notes payable, various maturities through 2005, secured by stock
  and assets of certain subsidiaries and land and building...........................     2,627,000    2,867,000
Revolving line of credit at the bank prime rate (8.5 percent at December 31, 1995)
  matures December 1996, convertible into a 36 month term loan.......................            --    1,100,000
10.5 percent note payable, due through 1997, secured by land and
  building of a certain subsidiary...................................................     1,016,000    1,025,000
Adjustable rate notes payable, interest at bank prime rate, plus 1.5 percent
  (capped at 9.0 percent at December 31, 1995), due through 2001, secured
  by assets and stock of certain subsidiaries........................................       707,000      803,000
11 percent note payable due through 2001, secured by assets
  of certain subsidiary..............................................................       383,000      449,000
Adjustable rate notes payable at the bank prime rate, plus 1 percent
  (9.75 percent at December 31, 1995)................................................       420,000    1,688,000
Notes payable, secured by assets and stock of certain subsidiaries, various
  maturities through 2001, interest at an average rate of 11 to 12 percent...........       123,000      152,000
Promissory notes, secured by assets of certain subsidiaries, bearing interest
  at interest rates between 7% and 10% payable monthly, principal is generally
  due in monthly installments through July 2014......................................     7,517,000    8,285,000
Promissory note, interest at prime plus 3% (11.75% at December 31, 1995),
  principal and interest payable in monthly installments through July 2000                  133,000      154,000
</TABLE>

                                     F-40
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

<TABLE>
<CAPTION>
                                                                                                  1995           1994
                                                                                              ------------   ------------
<S>                                                                                           <C>            <C>
Convertible promissory note payable to a shareholder, officer and director,
  secured by assets of certain subsidiaries, interest at 9% per annum payable
  semi-annually, principal due July 1996, convertible into 6,463 shares of
  common stock.............................................................................   $  250,000     $  250,000
Convertible promissory notes, secured by assets of certain subsidiaries,
  interest at 7% per annum payable monthly, principal due through December 2003,
  convertible into 7,637 shares of common stock............................................       649,000        649,000
Convertible promissory note payable to an employee, secured by assets of certain
  subsidiaries, interest at 8.5% per annum, interest and principal payable in
  monthly installments from January 1994 through December 1998, convertible into
  8,617 shares of common stock.............................................................       671,000        686,000
Convertible promissory notes payable primarily to directors and stockholders,
  secured by common stock and key man life insurance, interest at 12% per annum
  payable annually, principal due December 1998 and January 1996, convertible
  into shares of common stock at an initial conversion rate of $7.23 and $8.70.............       490,000        579,000
Obligations under covenants not to compete, payable in installments through 2003...........       782,000      1,005,000
Installment obligations bearing interest at 8% to 10.25%, due through 2005.................       295,000             --
Installment obligations, variable interest rates, periodic installments due through 1996...            --        131,000
                                                                                              -----------    -----------
Total debt obligations.....................................................................    43,519,000     30,376,000
Capital lease obligations, due through 2000 (Note 9).......................................       931,000        358,000
Less -- Unamortized discount...............................................................      (251,000)      (125,000)
                                                                                              -----------    -----------
                                                                                               44,199,000     30,609,000
Less -- Current portion....................................................................    (7,421,000)    (5,552,000)
                                                                                              -----------    -----------
                                                                                              $36,778,000    $25,057,000
                                                                                              ===========    ===========
</TABLE>

 The annual aggregate scheduled maturities of debt obligations for the five
years subsequent to December 31, 1995 are presented below:
<TABLE>
 
<S>                                           <C>
1996........................................   $ 7,421,000
1997........................................     7,971,000
1998........................................     5,815,000
1999........................................     4,315,000
2000........................................     4,675,000
Thereafter..................................    14,002,000
                                               -----------
                                               $44,199,000
                                               ===========
</TABLE>

 Certain acquisition debt of the Company included above and amounting to
$33,889,000  and $26,347,000 at December 31, 1995 and 1994, respectively, is
non-recourse debt secured solely by the assets or the stock of the veterinary
hospital acquired under security arrangements whereby the creditor's sole remedy
in the event of default is the contractual right to take possession of the
entire veterinary hospital regardless of the outstanding indebtedness at the
time of default.

 The Company has an unsecured line of credit of $3.1 million.  The line of
credit is at the bank prime rate (8.5 percent at December 31, 1995) and expires
in December 1996, at which time the outstanding balance on the line can, at the
Company's option, convert to a 36-month term loan.  At December 31, 1995, the
Company had $3.1 million available under the line.

 In April 1996, the Company received net proceeds of $82,697,000 related to the
sale, in an offshore offering and concurrent private placement in the United
States, of $84,385,000 of 5.25% convertible subordinated debentures due in 2006.
The debentures, non-callable for three years, are convertible into approximately
2.5 million shares of the Company's common stock at a rate of $34.35 per share.

 The following disclosure of the estimated fair value of the Company's debt is
made in accordance with the requirements of Statement of Financial Accounting
Standards No. 107 "Disclosures about Fair Value of Financial Instruments."  The
estimated fair value amounts have been determined by the Company using available
market information and appropriate valuation methodologies.

                                     F-41
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

 Considerable judgment is required to develop the estimates of fair value, thus
the estimates provided therein are not necessarily indicative of the amounts
that could be realized in a current market exchange.

<TABLE> 
<CAPTION> 
                                                    December 31, 1995
                                                ------------------------
                                                 Carrying       Fair
                                                  Amount        Value
                                                -----------  -----------
   <S>                                          <C>          <C> 
   Fixed-rate long-term debt.................   $33,952,000  $30,104,000
   Variable-rate long-term debt..............     4,256,000    4,256,000
</TABLE> 

 The carrying values of variable-rate long-term debt is a reasonable estimate of
their fair value.  The estimated fair value of the Company's fixed-rate long-
term debt is based on prime plus an estimated spread at December 31, 1995 for
similar securities with similar remaining maturities.

6.  PREFERRED STOCK

 On December 22, 1992, the Company completed the sale of 583,333 shares of
convertible preferred stock for net proceeds of $2,985,000.  The shares are
convertible into 583,333 shares of the Company's common stock commencing
December 22, 1997.  The preferred stock participates in any dividend payments on
the Company's common stock on an as converted basis.  The preferred stock has a
liquidation preference of $5.14 per share and it is callable by the Company any
time after March 22, 1998 at a price of $5.14 per share.  The preferred stock
has no voting rights.

 Under the Company's certificate of incorporation, the Company is authorized to
issue additional series of preferred stock.  The rights, preferences and
privileges of the preferred stock are to be determined by the board of directors
and do not require stockholder approval.

7.  COMMON STOCK

 In January 1995, Star-Kist Foods, Inc. through its Heinz Pet Products division
purchased 1,159,420 shares of the Company's common stock at $8.625 per share,
resulting in net proceeds to the Company of $9,980,000.

 In November 1995, the Company completed a secondary public offering of
2,965,026 shares of common stock for net proceeds of $33,932,000.

 During 1995, the Company issued 1,075,226 shares of the Company's common stock
valued at $11,980,000, the fair market value at the date of commitment, as a
portion of the consideration for 15 animal hospitals and three veterinary
diagnostic laboratories.  Of this amount, 156,303 shares of common stock valued
at $1,970,000 had not been issued as of December 31, 1995.  Such shares are
reflected as though they are outstanding in the accompanying consolidated
financial statements.

 In conjunction with the acquisition of two hospitals and PAL in 1994, the
Company issued 237,483 shares of common stock with a market value at the date of
issue of $1,732,000.  Also in 1994, the Company issued 63,214 shares of common
stock in settlement of a guaranteed purchase price contingently payable in cash
or common stock (Note 8) and 30,841 shares of common stock for repayment of
promissory note interest.

 On October 6, 1991, the Company completed a public offering of 2,400,000 shares
of common stock and 3,240,000 redeemable warrants for $12,598,000.  Each
redeemable warrant entitles the holder to purchase one share of common stock for
$7.20 commencing April 10, 1992 until October 10, 1996, and is redeemable at the
option of the Company at any time after April 10, 1992 on 30 days prior written
notice, provided that the market price of the common stock equals or exceeds
$9.00 per share for 20 consecutive trading days ending within 10 days prior to
notice of redemption.  Such market price exceeded $9.00 per share for 20
consecutive days on March 10,1995.  During 1995, redeemable warrants were
exercised for 1,271,508 shares of common stock.  Cash proceeds from the exercise
of redeemable warrants amounted to $8,896,000.  At December 31, 1995, there are
1,968,492 redeemable warrants outstanding.

                                     F-42
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

 Under the provisions of the Company's non-qualified and incentive stock option
plans for officers and key employees, 750,000 shares of common stock were
reserved for issuance at December 31, 1992.  On May 5, 1995, the stockholders of
the Company approved the adoption of the Veterinary Centers of America, Inc.
1995 Stock Incentive Plan, and authorized the reservation of 750,000 shares of
common stock for issuance under the Plan.  The options become exercisable over a
two to five year period, commencing at the date of grant or one year from the
date of grant depending on the option.  All options expire 10 years from the
date of grant.  The prices of all options granted were greater than or equal to
the fair market value at the date of the grant.

 The table below summarizes the transactions in the Company's stock option plans
during 1995, 1994 and 1993:
<TABLE>
<CAPTION>
 
                                                1995        1994       1993
                                             ----------   --------   --------
<S>                                          <C>          <C>        <C>
Options outstanding at beginning of year...     748,172    652,894    379,021
Granted....................................     820,965    144,993    293,423
Exercised..................................     (21,034)   (32,765)    (5,838)
Canceled...................................     (13,200)   (16,950)   (13,712)
                                             ----------   --------   --------
Options outstanding at end of year
   ($.75 to $31.91 per share)..............   1,534,903    748,172    652,894
                                             ==========   ========   ========
 
Exercisable at end of year.................     684,210    462,879    339,582
                                             ==========   ========   ========
</TABLE>

 In addition to the options granted under VCA's stock option plans, the Company
had 45,667 and 54,000 options outstanding at December 31, 1995 and 1994,
respectively, to certain members of the board of directors and to the previous
owners of certain acquired companies.  During 1995, 8,333 of these options were
exercised.  The options are exercisable at $.75 to $6.00 per share.  At December
31, 1995, 45,667 of the options are exercisable.

 In November 1995, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 123 "Accounting for Stock-Based
Compensation."  The statement recommends changes in accounting for employee
stock-based compensation plans, and requires certain disclosures with respect to
these plans.  The Statement's disclosures were adopted by the Company effective
January 1, 1996.

8.  GUARANTEED PURCHASE PRICE CONTINGENTLY PAYABLE IN CASH OR COMMON STOCK

 The Company has guaranteed the value of certain shares of its common stock
issued in connection with the acquisition of certain animal hospitals in 1995.
If the aggregate market value of the stock (as quoted by a nationally recognized
stock exchange) at various specified valuation dates is below the value of the
stock on the acquisition date, the Company has agreed to pay the difference in
additional shares of stock, cash or notes payable.  The Company's guarantee of
the value, however, terminates if the common stock is registered for resale and
trades at 110% to 120% of the issue price of the stock for five to twenty
consecutive days.  At December 31, 1995, there were 404,495 shares of stock
outstanding with such guarantees, with issue prices ranging from $11.26 to
$14.95.

 In connection with certain acquisitions completed prior to 1995, the Company
guaranteed the price of certain shares of its common stock issued in connection
with the acquisitions.  If the aggregate market value of the stock (as quoted by
a nationally recognized stock exchange) had not reached the guaranteed value,
which exceeded the value of the stock at the acquisition date, by the various
specified valuation dates, the Company agreed to pay the difference in
additional shares of stock, cash, or notes payable.  The guaranteed purchase
price contingently payable in cash or common stock represents the liability for
the difference between the aggregate guaranteed value of the common stock net of
the Company's estimate of the fair market value of the stock at the date of the
acquisition, discounted at 10 percent.

                                     F-43
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

 In 1995, pursuant to two of these stock guarantee arrangements pertaining to a
total of 13,494 shares, the Company paid $19,000 in cash for the difference
between the guaranteed value of the stock held and the market value of the
stock, as defined.  The difference between the $19,000 and the $72,000 liability
for the guaranteed purchase price contingently payable in cash or common stock,
amounting to $53,000 was credited to additional paid-in-capital.

 In 1994, pursuant to a stock guarantee arrangement for 80,000 shares, the
Company issued 63,214 shares of common stock for the difference between the
guaranteed value of the stock held and the market value of the stock, as
defined.  The market value of the additional shares issued, totaling $470,000,
was charged to the liability for the guaranteed purchase price contingently
payable in cash or common stock.

9.  COMMITMENTS

 The Company operates many of its hospitals from premises that are leased from
the hospitals' previous owners under operating leases with terms, including
renewal options, ranging from one to 35 years.

 The annual lease payments under the lease agreements have provisions for annual
increases based on the Consumer Price Index.  The Company also leases certain
medical and computer equipment under capital leases.

The future minimum lease payments at December 31, 1995 are as follows:
<TABLE>
<CAPTION>
 
                                                   Capital      Operating
                                                   Leases         Leases
                                                 ----------    -----------
<S>                                              <C>           <C>
 
1996..........................................   $  425,000     $ 4,004,000
1997..........................................      341,000       3,970,000
1998..........................................      251,000       3,772,000
1999..........................................       67,000       3,211,000
2000..........................................       16,000       3,041,000
Thereafter....................................           --      36,672,000
                                                 ----------     -----------
                                                  1,100,000     $54,670,000
                                                                =========== 
Less -- Amount representing interest..........     (169,000)
                                                 ----------
Present value of net minimum lease payments...   $  931,000
                                                 ==========
</TABLE>

 Rent expense totaled $3,880,000, $2,158,000 and $1,606,000 for the years ended
December 31, 1995, 1994 and 1993, respectively.  Rental income totaled $246,000,
$96,000 and $96,000 for the years ended December 31, 1995, 1994 and 1993,
respectively.

 The Company has employment agreements with three officers of the Company which
currently expire on December 31, 1998.  Each of the agreements provide for
annual compensation (subject to upward adjustment) which aggregated $559,000 for
the year ended December 31, 1995.

10.  CALCULATION OF PER SHARE AMOUNTS

 Earnings per share calculations are based on the weighted average common shares
outstanding including obligated shares (Note 7) plus common shares subject to
dilutive stock options, common shares contingently issuable pursuant to the
guaranteed purchase price contingently payable in cash or common stock as
discussed in Note 8, convertible debt and shares issuable upon redemption of
redeemable warrants and conversion of preferred stock.  Stock options, common
shares contingently issuable and shares issuable upon conversion of preferred
stock are not included in the weighted average common shares in 1995, 1994 and
1993 as they have an anti-dilutive effect.

                                     F-44
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

11.  INCOME TAXES

The provision for income taxes is comprised of the following:
<TABLE>
<CAPTION>
                  1995         1994         1993
              -----------    ---------   ----------
<S>           <C>            <C>         <C>
Federal:
Current....    $1,888,000     $183,000    $ 490,000
Deferred...      (192,000)     296,000     (595,000)
               ----------     --------    ---------
                1,696,000      479,000     (105,000)
               ----------     --------    --------- 
State:
Current....       560,000      239,000      141,000
Deferred...       (18,000)      13,000     (188,000)
               ----------     --------    --------- 
                  542,000      252,000      (47,000)
               ----------     --------    --------- 
               $2,238,000     $731,000    $(152,000)
               ==========     ========    =========
</TABLE>

 Effective January 1, 1993, the Company adopted the provisions of Statement of
Financial Accounting Standards No. 109, "Accounting for Income Taxes" ("SFAS
109").  SFAS 109 requires recognition of deferred tax liabilities and assets for
the expected future tax consequences of events that have been included in the
financial statements or tax returns.  Under this method, deferred tax
liabilities and assets are determined based on the difference between the
financial statement and tax bases of assets and liabilities using enacted tax
rates in effect for the year in which the differences are expected to reverse.
The Company reflected the impact as a cumulative adjustment in the 1993 first
quarter and did not restate prior periods.  The cumulative adjustment had a
favorable impact of $221,000 on the net loss.

The net deferred tax asset (liability) is comprised of the following:
<TABLE>
<CAPTION>
 
                                                    1995          1994
                                                ----------     ---------
<S>                                             <C>            <C>
 
Current deferred tax assets (liabilities):
  Accounts receivable........................    $  301,000    $ 165,000
  State taxes................................       156,000       34,000
  Other liabilities and reserves.............       588,000      430,000
  Start-up costs.............................        59,000      120,000
  Property, plant and equipment..............        95,000      (33,000)
  Restructuring..............................       345,000           --
  Other assets...............................        (4,000)      (4,000)
  Valuation allowance........................      (365,000)    (274,000)
                                                 ----------    ---------
    Total current deferred tax asset, net....    $1,175,000    $ 438,000
                                                 ==========    =========
</TABLE>

                                     F-45
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

<TABLE>
<CAPTION>
                                                                                    1995                     1994
                                                                                 -----------              -----------
<S>                                                                              <C>                      <C>
Non-current deferred tax (liabilities) assets:
  Net operating loss carryforwards......................................         $ 2,482,000              $ 1,824,000 
  Writedown of assets...................................................           1,587,000                  779,000               
  Start-up costs........................................................             288,000                  151,000               
  Miscellaneous.........................................................                  --                   25,000               
  Other assets..........................................................            (119,000)                (124,000)              
  Intangible assets.....................................................          (2,037,000)                (211,000)              
  Valuation allowance...................................................          (3,760,000)              (2,389,000)              
  Property, plant and equipment.........................................             258,000                 (203,000)              
                                                                                 -----------              -----------               
    Total non-current deferred tax liability, net.......................         $(1,301,000)             $  (148,000)              
                                                                                 ===========              =========== 
</TABLE> 
 
A reconciliation of the provision for income taxes to the amount computed at 
the Federal statutory rate is as follows:
<TABLE> 
<CAPTION> 
 
                                                                           1995           1994            1993
                                                                          -------        -------         ------
<S>                                                                       <C>            <C>             <C> 
Federal income tax at statutory rate....................................    34.0%         (34.0)%         (34.0)%
Effect of amortization of goodwill......................................     5.0            9.0             5.0
State taxes, net of Federal benefit.....................................     8.0           12.0             2.0
Cumulative impact of tax law change.....................................      --             --            (3.0)
Increase in valuation allowance                                            
   associated with writedown of assets
   and operating losses.................................................   172.0           75.0            27.0 
                                                                          ------          -----           ----- 
                                                                           219.0%          62.0%           (3.0)%
                                                                          ======          =====           ===== 
</TABLE>

 For financial reporting purposes, the benefit arising from the utilization of
operating loss carryforwards generated by companies prior to their acquisition
by VCA is accounted for as a reduction of goodwill of the acquired companies.
Such benefit amounted to $40,000 and $69,000 for the years ended December 31,
1993 and 1995, respectively.  No benefit was realized for the year ended
December 31, 1994.  For tax reporting purposes, the acquired companies have
Federal net operating loss carryforwards at December 31, 1995 of approximately
$260,000 expiring through 2003.

 At December 31, 1995, Pets' Rx has federal and state net operating loss ("NOL")
carryforwards of approximately $6.5 million and $3.2 million, respectively.
These NOL carryforwards expire at various dates through 2010 and 2000,
respectively.

 Under the Tax Reform Act of 1986, the utilization of NOL carryforwards to
reduce taxable income will be restricted in certain circumstances.  Events which
cause such a limitation include, but are not limited to, a cumulative ownership
change of more than 50% over a three year period.  Management believes that the
issuance of convertible preferred stock during 1994 and the merger with VCA
caused such a change in ownership and, accordingly, utilization of the Pets' Rx
NOL carryforwards may be limited in future years.

12.  401(K) PLAN

 During 1992, the Company established a voluntary retirement plan under Section
401(k) of the Internal Revenue Code.  The plan covers all eligible employees and
provides for annual matching contributions by the Company at the discretion of
the Company's board of directors.  In 1995, 1994 and 1993, the Company provided
a matching contribution of 20 percent, 20 percent and 15 percent, respectively
of the first five percent of the employees' contributions, as defined.  Such
matching contributions approximated $87,000, $46,000 and $24,000 in 1995, 1994
and 1993, respectively.

                                     F-46
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

13.  WRITEDOWN OF ASSETS

 During 1993, the Company charged $4,506,000 to operations related to the
writedown of goodwill and certain intangible assets at three VCA facilities and
five Pets' Rx facilities. The determination to writedown these assets was based
on the Company's estimate that forecasted losses at each facility indicated that
the intangible assets would not be realized.

 The first of the three hospitals was purchased in March 1989, with goodwill on
the acquisition of $920,000.  In the five years subsequent to the acquisition,
the hospital generated losses aggregating $84,000 through December 31, 1993, due
primarily to severe competition in the area from the veterinarian from whom the
Company acquired the hospital.  In January 1994, the economy in the area where
the hospital operates was adversely impacted by the "Northridge Earthquake,"
further impacting the hospital's revenues and operating results.

 The second hospital was purchased in December 1989, at a price of approximately
$1 million, with goodwill on the acquisition of $997,000.  Since the
acquisition, the hospital generated aggregate net income of $250,000 through
December 31, 1993, including a loss of $44,000 in 1992 and income of $17,000 in
1993.  Included in the operating results is income of $73,000 in 1992 and
$39,000 in 1993 from the rental of space at the facility to a veterinary surgery
referral practice.  The rental agreement was terminated in July 1993 and, due to
the specialization of the services provided by the referral practice, the
hospital was unable to find a suitable replacement.  In addition to the impact
of the loss of rental income, the hospital's revenue and income were adversely
impacted by the loss of referral business from the referral practice. The
departure of the group had a permanent negative impact on the hospital's net
income and the recoverability of goodwill.

 The third hospital was purchased in December 1991 at a price of approximately
$800,000, with goodwill and other intangible assets on the acquisition of
$778,000.  The hospital generated net income in 1992 of $52,000 and a net loss
in 1993 of $59,000.  The hospital provided 24-hour emergency service under an
arrangement whereby a veterinary emergency group used the hospital space during
the hours that the regular hospital was closed.  The emergency clinic's
presence in the hospital provided substantial indirect benefits to the
hospital's operating results.  In September 1993, the emergency group terminated
its arrangement with the hospital, and the operating results were adversely
impacted.  The Company has determined that emergency services cannot be replaced
and the impact on the hospital will be permanent.

 In 1993, Pets' Rx recognized a writedown of goodwill of $123,000 related to a
hospital that was closed in early 1994.

 As a result of conforming to consistent methods of accounting, four hospitals
acquired by Pets' Rx in early to mid-1992 became impaired in 1993. Three of the
four hospitals are located in the Sacramento area, a market which had not
matured as anticipated. These three hospitals had losses excluding amortization
of intangible costs totaling $91,000 for 1993. The fourth hospital located in
the San Jose market had also not matured as anticipated and recorded a loss
excluding amortization of $76,000 in 1993 resulting in a writedown for the four
hospitals of $2,073,000.

 As of late 1995, it was further determined that three hospitals acquired by
Pets' Rx in late 1993 and 1994 were impaired.  One hospital acquired in late
1994 is also located in the depressed Sacramento market and its addition failed
to improve the overall Sacramento region performance.  The remaining hospitals'
performance reflect factors specific to their operations and location and are
not indicative of the San Jose and Las Vegas markets.  These three hospitals
recorded losses totaling $206,000 in 1995 and resulted in a writedown of
$2,148,000.

 The Company's goal over the next two years is to minimize the facilities' cash
flow requirements and ultimately bring the facilities to a breakeven status.
The Company's strategy of building a network of hospitals in the markets they
serve will be benefited by the hospitals' ability to provide services to
customers in their vicinity, even though the facilities will not generate
profits.

14.  RESTRUCTURING CHARGE

 The operations of Cenvet were merged into VRI's operations to form Vet Research
in March 1995.  The combined operations were  restructured to eliminate
duplicate operating and overhead costs.  The restructuring included the
consolidation of facilities, staff reductions and the consolidation of ancillary
operations.  In connection with the restructuring, the Company recorded a charge
of

                                     F-47
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

$1,086,000 in the first quarter of 1995 to accrue the estimated costs associated
with the restructuring, consisting primarily of lease termination and severance
costs.

The following is a summary of the restructuring costs:
<TABLE>
<CAPTION>
                                    1995
                                 ----------
<S>                              <C>
   Employee severance costs...   $  468,000
   Lease commitments..........      433,000
   Other......................      185,000
                                 ----------
                                 $1,086,000
                                 ==========
</TABLE>

 During 1995, the Company utilized $237,000 of the reserve for restructuring.
At December 31, 1995, $849,000 of the restructuring reserves remained on the
Company's balance sheet.

15.  LINES OF BUSINESS

 The Company classifies its business operations into three segments:  Animal
Hospital, Premium Pet Food and Laboratory.  Prior to January 1993, the Company's
principal line of business was owning and operating animal hospitals.  On
January 1, 1993, the Company formed a joint venture, Vet's Choice, to develop,
market and distribute new pet products and services (Note 4).  Vet's Choice
began generating revenue in March 1994 when it commenced distribution of its
first product line.  In March 1994, the Company acquired Professional Animal
Laboratory and combined its existing laboratory to form the Laboratory segment.
<TABLE>
<CAPTION>
 
                              ANIMAL      PREMIUM                     CORPORATE &      
(IN THOUSANDS)               HOSPITAL     PET FOOD     LABORATORY    ELIMINATIONS     TOTAL 
- --------------               --------     --------     ----------    ------------    --------
<S>                          <C>          <C>          <C>          <C>              <C>
1995
Revenues..................     $67,059     $ 4,756       $37,606         $(1,727)    $107,694
Gross profit..............      11,767       1,551        13,629              --       26,947
Restructuring cost........          --          --         1,086              --        1,086
Operating income (loss)...       4,637      (2,573)        8,359          (3,890)       6,533
Identifiable assets.......      74,073       3,854        29,798          45,661      153,416
 
1994
Revenues..................     $41,484     $   996       $10,150         $  (759)    $ 51,871
Gross profit..............       7,111         349         3,577              --       11,037
Operating income(loss)....       3,595      (3,094)        2,563          (2,796)         268
Identifiable assets.......      47,698       3,599        13,532           3,073       67,902
</TABLE>

16.  SUBSEQUENT EVENTS

 During 1996 through June 18, 1996, the Company purchased eleven veterinary
hospitals and three veterinary diagnostic laboratories (See Note 3).

 On March 21, 1996, the Company signed a definitive merger agreement with The
Pet Practice, Inc. ("TPP"), pursuant to which the Company will acquire all of
the outstanding securities of TPP.  TPP operates 86 veterinary hospitals in 11
states.

 Under the terms of the agreement, each share of TPP common stock will be
converted into a fraction of a share of VCA common stock determined by a
reference to the average closing price of VCA common stock over the twenty
trading days ending on the third day before the shareholder meetings at which
the stockholders of VCA and TPP will consider the merger.  If the average price
of the VCA common stock ranges from $25 to $30 per share, the exchange ratio
shall be determined by dividing $10 by the average price of the VCA common
stock, resulting in a valuation of $10 per share of TPP common stock throughout
the range.  If the average closing price of the VCA common stock is less than
$24 per share, the exchange ratio will be increased (from 0.395 shares at $24
per share) by 0.005 for each dollar of such reduction down to $18.50 of VCA
common stock, and if the average price of VCA common stock is more than $31 per
share, the exchange ratio shall be reduced (from 0.3350 at $31 per share) by
0.005 for each dollar of such increase, up to $49.00 per share.  No further
adjustment shall be made if the price of VCA stock shall be less than

                                     F-48
<PAGE>
 
             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

              NOTES TO SUPPLEMENTAL COMBINED FINANCIAL STATEMENTS

         (Information with respect to the unaudited three months ended
    March 31, 1996 and 1995 is not covered by report of independent public 
                                  accountants)

$18.50.  In each case, a proportionate reduction or increase, as the case may
be, shall be made if the price of VCA common stock is less than a round dollar.
If the average price of the VCA common stock is greater than $49.00, the
exchange ratio should be determined by dividing $12.005 by the average price.
By way of illustration, at $23 per share of VCA common stock, the exchange ratio
shall be 0.400, resulting in a valuation of $9.20 per share of TPP common stock.
At $32.00 per share of VCA common stock, the exchange ratio shall be 0.330,
resulting in a valuation of $10.56 per share of TPP common stock.  The Company
expects that the merger will be consummated in the second quarter of 1996.  The
merger will be accounted for as a purchase.  Each party has the right to
terminate the definitive agreement if the average price of VCA common shares is
$18.50 or less.

 Consummation of the merger is subject to certain significant conditions.
Consequently, the merger of VCA and TPP may never be consummated.

                                     F-49
<PAGE>
 
                            THE PET PRACTICE, INC.
                          CONSOLIDATED BALANCE SHEET
                                (IN THOUSANDS)

<TABLE>
<CAPTION>


                                                      APRIL 3, 1996    JANUARY 3,
                                                      (UNAUDITED)        1996
                                                      -------------    ---------
<S>                                                   <C>              <C>
ASSETS

Current assets:

  Cash and cash equivalents...........................   $ 4,916       $10,097

  Accounts receivable, net of allowance
   for doubtful accounts of $258 at
   April 3, 1996 and $363 at January 3, 1996..........       836           809

  Other receivables...................................       264           534

  Inventories.........................................     3,154         3,175

  Other current assets, including
   deferred  merger costs of $625 in 1996.............     1,592           966
                                                         -------       -------
    Total current assets..............................    10,762        15,581

Property and equipment, net...........................    15,029        13,465

Excess of cost over fair value of net
  assets acquired and other intangible assets,
  net.................................................    53,775        51,271

Other assets..........................................       149           145
                                                         -------       -------
                                                         $79,715       $80,462
                                                         =======       =======
</TABLE>

  The accompanying notes are an integral part of these financial statements.

                                     F-50
<PAGE>
 
                            THE PET PRACTICE, INC.
                          CONSOLIDATED BALANCE SHEET
                                (IN THOUSANDS)

<TABLE>
<CAPTION>

LIABILITIES, MANDATORILY                              APRIL 3,
REDEEMABLE PREFERRED STOCK,                             1996       JANUARY 3,
AND STOCKHOLDERS' EQUITY                             (UNAUDITED)     1996
                                                     -----------   ----------
<S>                                                  <C>           <C>

Current liabilities:
 Current portion of long-term debt, including
 due to related parties of $1,741 at
 April 3, 1996 and $1,649 at January 3, 1996..........  $ 3,820       $ 3,696
 Accounts payable.....................................    2,169         2,540
 Accrued expenses and other current liabilities.......    4,959         5,184
                                                        -------       -------

  Total current liabilities...........................   10,948        11,420

Long-term debt, including amounts due to
 related parties of $7,872 at April 3, 1996
 and $7,848 at January 3, 1996........................   16,216        15,786

Other liabilities.....................................       30            36
                                                        -------       -------

  Total liabilities...................................   27,194        27,242
                                                        -------       -------


Commitments and contingencies.........................        -             -

Mandatorily redeemable preferred stock, $0.01
 par value, 10 shares authorized......................        -             -
                                                        -------       ------- 
                                                              -             -

Stockholders' equity:
 Preferred stock, $0.01 par value, 1,000
 shares authorized....................................
 Common stock, $0.01 par value, 20,000
 shares authorized; 8,632 shares issued
 and outstanding at April 3, 1996 and
 8,607 at January 3, 1996.............................       86            86
 Capital in excess of par value.......................   62,026        61,826
 Accumulated deficit..................................   (9,591)       (8,692)
                                                        -------       -------
 Total stockholders' equity...........................   52,521        53,220
                                                        -------       -------
                                                        $79,715       $80,462
                                                        =======       =======
</TABLE> 
  The accompanying notes are an integral part of these financial statements.

                                     F-51
<PAGE>
 
                            THE PET PRACTICE, INC.
                     CONSOLIDATED STATEMENT OF OPERATIONS
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
                                  (UNAUDITED)

<TABLE>
<CAPTION>

                                                                 THIRTEEN WEEKS ENDED
                                                              --------------------------
                                                               APRIL 3,        MARCH 29,
                                                                 1996            1995*
                                                              ----------       ---------
<S>                                                           <C>              <C>
Net revenues................................................    $13,404         $ 7,607
Cost of revenues............................................     12,104           7,120
                                                                -------         -------
Gross profit................................................      1,300             487
General and administrative expenses.........................      1,490           1,223
Amortization of excess of cost over fair value     
 of net assets acquired and other intangible assets.........        460             248
Loss from operations........................................       (650)           (984)
Non-operating expenses (income):
 Interest expense - related parties.........................        167             328
 Interest expense - other...................................        154             369
 Interest income............................................        (93)             (6)
                                                                -------         -------
                                                                    228             691
                                                                -------         -------
Loss before income taxes....................................       (878)         (1,675)
Provision for income tax expense............................         21              19
                                                                -------         -------
Net loss....................................................    $  (899)        $(1,694)
                                                                =======         =======
Net loss per common share...................................     $(0.10)         $(0.42)
                                                                =======         =======
Shares used in net loss per common
 share computation..........................................      8,614           4,059
                                                                =======         =======
</TABLE>

      *Certain reclassifications have been made for comparative purposes.

   The accompanying notes are an integral part of these financial statements.

                                     F-52
<PAGE>
 
                            THE PET PRACTICE, INC.
           CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY
                                (IN THOUSANDS)
                                  (UNAUDITED)

<TABLE>
<CAPTION>
 
                                        COMMON STOCK
                                    --------------------
                                                            CAPITAL IN      ACCUM-             
                                     NUMBER        PAR       EXCESS OF      ULATED
                                    OF SHARES     VALUE      PAR VALUE      DEFICIT     TOTAL 
                                    ---------     -----      ---------      -------     -----
<S>                                 <C>           <C>       <C>            <C>         <C>
Balance at January 3, 1996......       8,607       $86        $61,826      $(8,692)    $53,220
Common stock issued in              
 connection with acquisitions...          25         -            200            -         200
Net loss........................           -         -              -         (800)       (899)
                                       -----       ---        -------      -------     ------- 
Balance at April 3, 1996........       8,632       $86        $62,026      $(9,591)    $52,521
                                       =====       ===        =======      =======     =======
</TABLE>

  The accompanying notes are an integral part of these financial statements.

                                     F-53
<PAGE>
 
                            THE PET PRACTICE, INC.
                     CONSOLIDATED STATEMENT OF CASH FLOWS
                                (IN THOUSANDS)
                                  (UNAUDITED)

<TABLE>
<CAPTION>

                                                                    Thirteen Weeks Ended
                                                                 ---------------------------
                                                                 April 3,          March 29,
                                                                   1996              1995
                                                                 --------          ---------
<S>                                                              <C>               <C>

Cash flows from operating activities:
Net loss........................................................  $  (899)          $(1,694)
Adjustments to reconcile net loss to net cash
 provided (used) by operations:
  Depreciation and amortization.................................      845               448
  Provision for doubtful accounts...............................      (26)               28
  Finance charges on mandatorily
   redeemable preferred stock...................................                         16
  Other non-cash charges........................................                         36
Changes in assets and liabilities, net of
 effects of businesses acquired:
  Increase in accounts receivable...............................       (8)              (90)
  Decrease (increase) in inventories............................       57              (223)
  Decrease (increase) in other current assets...................      274              (482)
  Decrease in accounts payable..................................     (370)             (461)
  Increase (decrease) in other accrued expenses
  and in other current liabilities..............................   (1,107)              517
  Other assets and other liabilities............................       (5)               13
                                                                  -------           -------
  Net cash used in operating activities.........................   (1,239)           (1,892)
                                                                  -------           -------
Cash flows from investing activities:
 Payments for purchases of businesses,
  net of cash acquired of $6 in 1996
  and $7 in 1995................................................   (2,116)           (4,139)
 Purchases of property and equipment............................     (905)             (850)
                                                                  -------           -------
  Net cash used in investing activities.........................   (3,021)           (4,989)
                                                                  -------           -------
Cash flows from financing activities:
 Borrowings under line of credit agreements.....................        -             7,194
 Principal payments on long-term obligations....................     (921)             (169)
                                                                  -------           -------
  Net cash provided by (used in) financing activities...........     (921)            7,025
                                                                  -------           -------
Net increase (decrease) in cash and cash equivalents............   (5,181)              144
Cash and cash equivalents at beginning of period................   10,097               910
                                                                  -------           -------
Cash and cash equivalents at end of period......................  $ 4,916           $ 1,054
                                                                  =======           =======
</TABLE>

  The accompanying notes are an integral part of these financial statements.

                                     F-54
<PAGE>
 
                              PET PRACTICE, INC.

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                 APRIL 3, 1996

             (Dollar amounts in thousands, except per share data)
                                  (Unaudited)


NOTE 1 - BASIS OF PRESENTATION

The accompanying consolidated financial statements are unaudited, except for the
Consolidated Balance Sheet as of January 3, 1996. The statements have been
prepared in accordance with the rules and regulations of the Securities and
Exchange Commission and should be read in conjunction with the Company's
consolidated financial statements and notes thereto for the year ended January
3, 1996, included in its Annual Report on Form 1O-K, as filed with the
Securities and Exchange Commission. Certain information and note disclosures
normally included in financial statements prepared in accordance with generally
accepted accounting principles have been condensed or omitted pursuant to such
rules and regulations. In the opinion of Company management, the consolidated
financial data for the unaudited interim periods presented include all
adjustments, consisting only of normal recurring adjustments, necessary to
present a fair statement of the results of such interim periods.

Operating results for the thirteen-week period ended April 3, 1996 are not
necessarily indicative of the results that may be expected for a full year or
any portion thereof.

NOTE 2 - DEFINITIVE MERGER AGREEMENT

On March 21, 1996, the Company signed a definitive agreement (the "Merger
Agreement") with Veterinary Centers of America, Inc. ("VCA"), pursuant to which
VCA will acquire all ...... outstanding securities of the Company.

Under the terms of the Merger Agreement, each share of the Company's common
stock will be converted into a fraction of a share of VCA common stock
determined by reference to the average closing price of VCA common stock over
the 20 trading days ending on the third day before the stockholder meetings, at
which the stockholders of VCA and the Company will consider the merger. If the
average price of the VCA common stock ranges from $25 to $30 per share, the
exchange ratio shall be determined by dividing $10 by the average price of VCA
common stock, resulting in a valuation of $10 per share of the Company's Common
Stock throughout the range. If the average closing price of VCA common stock is
less than $24 per share, the exchange ratio will be increased (from 0.395 shares
at $24 per share) by 0.005 for each dollar of such reduction down to $18.50 of
VCA common stock, and if the average price of VCA common stock is more than $31
per share, the exchange ratio shall be reduced (from 0.3350 at $31 per share) by
0.005 for each dollar of such increase, up to $49 per share. No further
adjustment shall be made if the price of VCA common stock

                                     F-55
<PAGE>

                              PET PRACTICE, INC.

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  (Continued)

                                 APRIL 3, 1996

             (Dollar amounts in thousands, except per share data)
                                  (Unaudited)
 
shall be less than $18.50. In each case, a proportionate reduction or increase,
as the case may be, shall be made if the price of VCA common stock is less than
a round dollar. By way of illustration, at $23 per share of VCA common stock,
the exchange ratio shall be 0.400, resulting in a valuation of $9.20 per share
of the Company's Common Stock. At $32 per share of VCA common stock, the
exchange ratio shall be 0.330, resulting in a valuation of $10.56 per share of
the Company's Common Stock. The merger will be accounted for as a purchase. If
the average price of VCA common stock is greater than $49, the exchange ratio
shall be determined by dividing $12.005 by the average price. Each party has the
right to terminate the definitive agreement if the average price of VCA common
stock is $18.50 or less. The Company expects that the merger will be consummated
in the third quarter of 1996.

Consummation of the merger is subject to certain significant conditions. The
Merger Agreement with VCA may be terminated by either VCA or the Company at any
time prior to the closing (i) if any material condition to the obligations of
the Company or VCA set forth in the Merger Agreement is not substantially
satisfied at the time or times contemplated thereby, (ii) there is a material
breach of any representation, warranty, condition, or agreement contained in the
Merger Agreement (that is not cured within 30 days of the tune that written
notice of such breach is received by the breaching party), (iii) if the merger
shall not have been consummated on or before September 1, 1996, or (iv) upon
their mutual consent.

For all of the foregoing reasons, the merger of VCA and the Company may never be
consummated.

The Company filed a copy of the Merger Agreement with the Securities and
Exchange Commission in its Current Report on Form 8-K dated March 21, 1996.

NOTE 3 - BUSINESS ACQUISITIONS

The Company acquired three clinics during the thirteen weeks ended April 3,
1996.

These acquisitions have been accounted for using the purchase method of
accounting. Accordingly, the purchase price was allocated to assets and
liabilities acquired based upon their estimated fair values at the dates of
acquisition. The results of operations of the acquired companies are included in
the consolidated financial statements from the respective dates of acquisition.

                                     F-56
<PAGE>

                              PET PRACTICE, INC.

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  (Continued)

                                 APRIL 3, 1996

             (Dollar amounts in thousands, except per share data)
                                  (Unaudited)
 

Information with respect to these acquisitions is presented below:


Cash paid (net of cash acquired)................    $1,177
Common stock issued.............................       200
Notes and mortgages issued......................     1,475
Transaction and other costs.....................     1,126
                                                    ------
 
Fair value of tangible assets acquired,
  principally accounts receivable, inventory,
  and property and equipment....................     1,014
                                                    ------
 Cost in excess of fair value of assets
  acquired and other intangible assets..........    $2,964
                                                    ======

The following unaudited pro forma consolidated results of operations of the
Company and its. . subsidiaries for the thirteen weeks ended April 3, 1996 give
effect on a pro forma basis to the practices acquired during the period from
January 4, 1996 through May 15, 1996, as if such practices had been acquired as
of January 4, 1996.

           Net revenues                           $13,579
           Loss from operations                      (639)
           Net loss                                  (910)
           Net loss per common share                (0.11)

The pro forma results of operations are not necessarily indicative of the actual
results of operations that would have occurred had the acquisitions been made on
January 4, 1996, or the Company's results of operations which may occur in the
future.

NOTE 4 - INCOME TAXES

Due to the Company's operating losses, there is no provision for federal income
taxes.

NOTE 5 - SUPPLEMENTAL STATEMENT OF CASH FLOWS INFORMATION

Cash paid during the thirteen weeks ended April 3, 1996 for interest and income
taxes was $344 and $36, respectively.

                                     F-57
<PAGE>
 
                       REPORT OF INDEPENDENT ACCOUNTANTS


To the Board of Directors and Stockholders of
The Pet Practice, Inc.

In our opinion, the accompanying consolidated balance sheet and the related
consolidated statements of operations, of changes in stockholders' equity
(deficit) and of cash flows present fairly, in all material respects, the
financial position of The Pet Practice, Inc. and its subsidiaries at January 3,
1996 and December 28, 1994 and the results of their operations and their cash
flows for the period October 27, 1993 (commencement of operations) to December
29, 1993, the year ended December 28, 1994 and the year ended January 3, 1996 in
conformity with generally accepted accounting principles.  These financial
statements are the responsibility of the Company's management; our
responsibility is to express an opinion on these financial statements based on
our audits.  We conducted our audits of these statements in accordance with
generally accepted auditing standards which require that we plan and perform the
audit to obtain reasonable assurance about whether the financial statements are
free of material misstatement.  An audit includes examining, on a test basis,
evidence supporting the amounts and disclosures in the financial statements,
assessing the accounting principles used and significant estimates made by
management and evaluating the overall financial statement presentation.  We
believe that our audits provide reasonable basis for the opinion expressed
above.



/s/ Price Waterhouse LLP

PRICE WATERHOUSE LLP
Philadelphia, PA
March 22, 1996

                                     F-58
<PAGE>
 
                             THE PET PRACTICE, INC.

                           CONSOLIDATED BALANCE SHEET
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
<TABLE>
<CAPTION>
                                                                           DECEMBER 28,   JANUARY 3,
                                                                              1994          1996    
                                                                          ------------    ----------
<S>                                                                       <C>               <C>      
                                     ASSETS                                                         
Current assets:                                                                                     
 Cash and cash equivalents...........................................       $   910          $10,097
 Accounts receivable, net of allowance for doubtful                                                 
  accounts of $103 at December 28, 1994 and                                                         
  $363 at January 3, 1996............................................           205              809
 Other receivables...................................................            34              534
 Inventories.........................................................         1,077            3,175
 Other current assets................................................           845              966
                                                                            -------          -------
   Total current assets..............................................         3,071           15,581
Property and equipment, net..........................................         6,148           13,465
Excess of cost over fair value of net assets acquired and                                           
 other intangible assets.............................................        25,941           51,271
Other assets.........................................................           257              145
                                                                            -------          ------- 
                                                                            $35,417          $80,462
                                                                            =======          =======

      LIABILITIES, MANDATORILY REDEEMABLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT)
Current liabilities:
 Borrowings under line of credit.....................................       $10,067          $    -   
 Current portion of long-term debt, including due to                                                  
   related parties of $758 at December 28, 1994                                                       
   and $1,649 at January 3, 1996.....................................         1,609            3,696  
 Accounts payable....................................................         1,786            2,540  
 Accrued expenses and other current liabilities......................         5,777            5,184  
                                                                            -------           ------  
     Total current liabilities.......................................        19,239           11,420  
Long-term debt, including amounts due to related parties of                                           
 $14,921 at December 28, 1994 and $7,848                                                              
 at January 3, 1996..................................................        18,885           15,786  
Other liabilities....................................................            67               36  
                                                                            -------           ------  
                                                                             38,191           27,242  
                                                                            -------          -------  
Commitments and contingencies                                                                         
Mandatorily redeemable preferred stock, $.01 par value,                                               
 10 shares authorized, 8 shares issued at                                                             
   December 28, 1994, at redemption value                                       875               -   
                                                                            -------           ------  
                                                                                                      
Stockholders' equity (deficit):                                                                       
 Preferred stock, $.01 par value, 1,000 shares authorized............                                 
 Common stock, $.01 par value, 20,000 shares authorized;                                              
   3,978 and 8,607 shares issued at December 28, 1994                                                 
   and January 3, 1996, respectively.................................            40               86  
 Capital in excess of par value......................................         1,828           61,826  
 Accumulated deficit.................................................        (5,517)          (8,692) 
                                                                            -------           ------  
     Total stockholders' equity (deficit)............................        (3,649)          53,220  
                                                                            -------           ------  
                                                                            $35,417          $80,462 
                                                                            =======          =======
</TABLE>

   The accompanying notes are an integral part of these financial statements.

                                     F-59
<PAGE>
 
                              THE PET PRACTICE, INC.
 
                       CONSOLIDATED STATEMENT OF OPERATIONS
                      (IN THOUSANDS, EXCEPT PER SHARE DATA)
 <TABLE>
 <CAPTION>
                                                                                                     YEAR ENDED
                                                                            OCTOBER 27 TO    ---------------------------
                                                                             DECEMBER 29,     DECEMBER 28,    JANUARY 3,
                                                                                1993*            1994*          1996*
                                                                            --------------   -------------   -----------
 <S>                                                                        <C>              <C>             <C>
 Net revenues                                                                  $1,201         $15,111          $40,571
 Cost of revenues (including related party lease
  expense of $45, $437, and $841 for the period
  October 27, 1993 to December 29, 1993; the year
  ended December 28, 1994; and the year ended
  January 3, 1996, respectively)................................                1,261          13,936           34,776
                                                                               ------         -------          -------
 Gross profit (loss)............................................                  (60)          1,175            5,795
 General and administrative expenses............................                  348           3,867            5,796
 Amortization of excess of cost over fair value of net assets
  acquired and other intangible assets..........................                   38             409            1,229
                                                                               ------         -------          -------
 Loss from operations...........................................                 (446)         (3,101)          (1,230)
                                                                               ------         -------          -------
 Non-operating (income) expenses:
  Interest expense--related parties.............................                  145             889              991
  Interest expense--other.......................................                   38             705            1,345
 Interest income...............................................                    -               (7)            (475)
                                                                               ------         -------          -------
                                                                                  183           1,587            1,861
                                                                               ------         -------          -------
Loss before income taxes.......................................                 (629)          (4,688)          (3,091)
Provision for income tax expense...............................                    -              200               84
                                                                              ------          -------          -------
Net loss.......................................................               $ (629)         $(4,888)         $(3,175)
                                                                              ======          =======          =======
Net loss per common share......................................               $(0.15)         $ (1.20)         $ (0.54)
                                                                              ======          =======          =======
Shares used in net loss per common share computation...........                4,059            4,059            5,863
                                                                              ======          =======          =======
</TABLE>

      *Certain reclassifications have been made for comparative purposes.

   The accompanying notes are an integral part of these financial statements.

                                     F-60
<PAGE>
 
                             THE PET PRACTICE, INC.

      CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIT)
                                 (IN THOUSANDS)
                                        
<TABLE>
<CAPTION>
                                      CAPITAL STOCK
                                   ------------------             CAPITAL IN
                                                 PAR              EXCESS OF          ACCUMULATED
                                   SHARES       VALUE             PAR VALUE            DEFICIT               TOTAL
                                   ------       -----             ----------         ------------           --------
<S>                                <C>          <C>               <C>                <C>                    <C>

Common stock issued,
 October 27, 1993...............    3,600         $36                $   162         $         -            $   198
Common stock issued.............       77           1                      3                   -                  4
Net loss for the period ended
 December 29, 1993..............        -           -                      -                (629)              (629)
                                    -----         ---                -------             -------            -------
Balance, December 29, 1993......    3,677          37                    165                (629)              (427)
Common stock issued in
 connection with acquisitions...      141           1                  1,652                   -              1,653
Common stock issued.............      160           2                     11                   -                 13
Net loss for the year ended
 December 28, 1994..............        -           -                      -              (4,888)            (4,888)
                                    -----         ---                -------             -------            -------
Balance, December 28, 1994......    3,978          40                  1,828              (5,517)            (3,649)
Common stock issued in
 connection with acquisitions...      329           3                  3,463                   -              3,466
Common stock issued through
 public offering................    4,300          43                 56,535                   -             56,578
Net loss for the year ended
 January 3, 1996................        -           -                      -              (3,175)            (3,175)
                                    -----         ---                -------             -------            -------
Balance, January 3, 1996........    8,607         $86                $61,826             $(8,692)           $53,220
                                    =====         ===                =======             =======            =======
</TABLE>

   The accompanying notes are an integral part of these financial statements.

                                     F-61
<PAGE>
 
                             THE PET PRACTICE, INC.

                      CONSOLIDATED STATEMENT OF CASH FLOWS
                                 (IN THOUSANDS)
<TABLE>
<CAPTION>

                                                                                      YEAR ENDED
                                                           OCTOBER 27 TO      ---------------------------
                                                           DECEMBER 29,        DECEMBER 28,    JANUARY 3,
                                                              1993                1994           1996
                                                           -------------      -------------   -----------
<S>                                                        <C>                <C>             <C>
Cash flows from operating activities:
 Net loss..................................................  $  (629)           $ (4,888)        $ (3,175)
 Adjustments to reconcile net loss to net cash
   provided (used) by operations:
   Depreciation and amortization...........................       96                 760            2,017
   Provision for doubtful accounts.........................       -                   16               65
   Finance charges on mandatorily redeemable
     preferred stock.......................................       10                  64               42
   Other non-cash charges..................................       -                  143                -
 Changes in assets and liabilities, net of
   effects from businesses acquired:
    Decrease (increase) in accounts receivable.............        1                (168)            (456)
    Increase in inventories................................      (55)               (225)          (1,263)
    Increase in other current assets.......................      (23)               (665)            (584)
    Increase in accounts payable...........................       51                 793              726
    Increase (decrease) in accrued expenses and
     current liabilities...................................      224               2,079           (1,891)
    Other assets and other liabilities.....................       -                  (26)              33
                                                             -------            --------         --------
     Net cash used by operating  activities................     (325)             (2,117)          (4,486)
                                                             -------            --------         --------
Cash flows from investing activities:
 Payments for purchases of businesses, net of
   cash acquired of $73 for the period ended
   December 29, 1993, $156 for the year
   ended December 28, 1994, and $41 for the
   year ended January 3, 1996..............................   (7,430)             (9,557)         (13,082)
 Purchases of property and equipment.......................      (48)               (206)          (4,662)
                                                             -------            --------         --------
    Net cash used by investing activities..................   (7,478)             (9,763)         (17,744)
                                                             -------            --------         --------
Cash flows from financing activities:
 Proceeds from issuance of common stock....................      202                  12           56,578
 Proceeds from issuance of mandatorily
   redeemable preferred stock..............................      800                  -                -
 Proceeds from issuance of long-term debt..................    9,324               3,067               -
 Borrowings under line of credit agreements................       -               10,067            8,859
 Redemption of mandatorily redeemable
   preferred stock.........................................       -                   -              (800)
 Payments of line of credit agreements.....................       -                   -           (18,926)
 Principal payments on long-term obligations...............   (2,449)               (430)         (14,294)
                                                             -------            --------         --------
    Net cash provided by financing activities..............    7,877              12,716           31,417
                                                             -------            --------         --------
Net increase in cash and cash equivalents..................       74                 836            9,187
Cash at beginning of period................................       -                   74              910
                                                             -------            --------         --------
Cash at end of period......................................  $    74            $    910         $ 10,097
                                                             =======            ========         ========
Supplemental disclosure of cash flow information:
 Interest paid.............................................  $    38            $    276         $  3,601
                                                             =======            ========         ========
</TABLE>

   The accompanying notes are an integral part of these financial statements.

                                     F-62
<PAGE>
 
                             THE PET PRACTICE, INC.

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                (IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)


NOTE 1 -- ORGANIZATION AND OPERATION:

     The Pet Practice, Inc. (the "Company") was formed to provide companion
animal veterinary care services. The Company's operations commenced on October
27, 1993 with the acquisition of Professional Veterinary Hospitals of America,
Inc. (a Michigan corporation). Since this initial acquisition, the Company has
acquired additional practices (see Note 3) such that as of January 3, 1996, the
Company operates 83 veterinary clinics in 10 states, all in the Eastern half of
the United States.

NOTE 2 -- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

 Fiscal year:

     The Company's accounting year is a 52-53 week fiscal year which ends on the
Wednesday nearest to December 31.

 Principles of consolidation:

     The consolidated financial statements include the accounts of the Company
and its wholly and beneficially owned subsidiaries ("Subsidiaries"). In response
to certain regulations in certain states in which the Company operates, several
Subsidiaries operate as professional corporations which, in turn, have executed
management agreements with the Company. Through the terms of the management
agreements, the Company has complete unilateral control over the professional
corporations. The management agreements entered into with the professional
corporations substantially restrict the business activities of these
professional corporations and the rights of their shareholders. Under related
agreements, the Company has the option to purchase, or to designate a purchaser
for, the stock of the professional corporations. These professional corporations
are consolidated because the Company (as opposed to affiliates of the Company)
has unilateral and perpetual control over the assets and operations of the
professional corporations and because, notwithstanding the lack of technical
majority ownership, consolidation of the professional corporations is necessary
to present fairly the financial position and results of operations of the
Company due to the existence of a parent-subsidiary relationship by means other
than majority ownership of the professional corporations' voting stock. The
Company has perpetual control over the professional corporations because the
Company does not intend to terminate any of its management agreements with the
professional corporations and, upon termination of any such agreement by the
veterinarian, the Company intends to exercise its option to purchase the stock
of the professional corporation for $100. Fees paid to the Company under these
agreements approximate the operating income, as defined, of the Subsidiaries.
All significant intercompany accounts and transactions have been eliminated.

 Use of estimates in the preparation of financial statements:

     The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.

 Statement of cash flows:

     For purposes of reporting cash flows, cash and cash equivalents include
cash on hand and short-term investments with original maturities of 90 days or
less.

                                     F-63
<PAGE>
 
                             THE PET PRACTICE, INC.

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                (IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)


 Net revenues:
     Net revenues are reported at the estimated amounts to be realized through
payments from customers and are recognized when the services are performed.

 Inventories:

     Inventories consist of pharmaceuticals, retail pet products and other
veterinary care products and are valued at the lower of first-in, first-out
cost, or market.

 Property and equipment:

     Property and equipment are stated at cost less accumulated depreciation and
amortization.  Additions and betterments are capitalized and maintenance and
repairs are charged to current operations.  The cost of assets retired or
otherwise disposed of and the related accumulated depreciation and amortization
are removed from the accounts and the gain or loss on such dispositions is
reflected in current operations.  Depreciation is provided using the straight-
line method.  Estimated useful lives of the assets are:

       Buildings.......................                            20-40 years
       Medical equipment...............                                7 years
       Furniture and fixtures..........                                7 years
       Leasehold improvements..........   Shorter of life of lease or 10 years
       Office equipment................                                5 years
       Vehicles........................                                5 years

 Long-lived and intangible assets:

     Assets and liabilities acquired in connection with business combinations
accounted for under the purchase method are recorded at their respective fair
values.  Deferred taxes have been recorded to the extent of differences between
the fair value of the tax basis of the assets acquired and liabilities assumed.
The excess of the purchase price over the fair value of the net assets acquired
is amortized on a straight-line basis over 40 years.  Other intangible assets
include client lists, assembled work force, and non-competition agreements,
which are amortized on a straight-line basis over periods ranging from three to
six years.

     The Company adopted Statement of Financial Accounting Standards No. 121,
"Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to
Be Disposed Of" (SFAS No. 121), effective December 29, 1994.  The carrying value
of long-lived assets and certain identifiable intangible assets will be
evaluated whenever changes in circumstances indicate the carrying amount of such
assets may not be recoverable.  In performing such review for recoverability,
the Company compares the expected future cash flows to the carrying value of
long-lived assets and identifiable intangibles.  If the expected undiscounted
future cash flows are less than the carrying amount of such assets, the Company
recognizes an impairment loss for the difference between the carrying amount of
the assets and their estimated fair value.  If an asset being tested for
recoverability was acquired in a business combination accounted for using the
purchase method, the excess of cost over fair value of net assets that arose in
that transaction is allocated to the assets being tested for recoverability on a
pro rata basis using the relative fair values of the long-lived assets and
identifiable intangibles acquired at the acquisition date.  In estimating future
cash flows for determining whether an asset is impaired, and if expected future
cash flows are used in measuring assets that are impaired, assets are grouped by
operating unit.

                                     F-64
<PAGE>
 
                             THE PET PRACTICE, INC.

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)


     In addition, the carrying value of the excess of cost over fair value of
net assets acquired is subject to a separate evaluation by estimating the
expected future undiscounted net cash flows from operating activities. If these
estimated net cash flows are less than the carrying amount of the excess of cost
over fair value of net assets acquired, the Company recognizes an impairment
loss in an amount necessary to write down the excess of cost over fair value of
net assets acquired to fair value, as determined from expected future cash 
flows.

 Income taxes:

     The Company has applied the asset and liability approach of Statement of
Financial Accounting Standards No. 109, Accounting for Income Taxes, for
financial accounting and reporting purposes.  The Company accounts for certain
items of income and expense in different time periods for financial reporting
and income tax purposes.  Provisions for deferred income taxes are made in
recognition of such temporary differences, where applicable.  A valuation
allowance is established against deferred tax assets unless the Company believes
it more likely than not that the benefit will be realized.

 Net loss per common share:

     Net loss per common share for the period ended December 29, 1993 and the
year ended December 28, 1994 has been computed by dividing the net loss
applicable to common stock by the number of shares of common stock outstanding
at August 4, 1995 (the date of consummation of the Company's initial public
offering of its common stock), as all shares issued prior to that date were
issued at prices significantly below the offering price in the Company's initial
public offering of its common stock.

     Net loss per common share for the year ended January 3, 1996 has been
computed by dividing the net loss applicable to common stock by the weighted
average number of common shares outstanding during the year.  For purposes of
computing such weighted average, the number of shares of common stock
outstanding at August 4, 1995 was treated as outstanding for the entire period
from December 29, 1994 to August 4, 1995.

NOTE 3 -- BUSINESS ACQUISITIONS:

     On October 27, 1993, the Company acquired all of the issued and outstanding
common stock of Professional Veterinary Hospitals of America, Inc. (a Michigan
corporation).  During 1994, the Company purchased all of the issued and
outstanding common stock of three practices and certain assets of an additional
10 practices.  During 1995, the Company purchased all of the issued and
outstanding common stock of three practices and certain assets of an additional
38 practices.

     The acquisitions have been accounted for using the purchase method of
accounting.  Accordingly, the purchase price was allocated to assets and
liabilities acquired based upon their estimated fair values at the dates of
acquisition.  The results of operations of the acquired companies are included
in the consolidated financial statements from the respective dates of
acquisition.

                                     F-65
<PAGE>
 
                             THE PET PRACTICE, INC.

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                (IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)


   Information with respect to these acquisitions is presented below:
<TABLE>
<CAPTION>
                                                                                  YEAR ENDED
                                                           OCTOBER 27 TO   -------------------------
                                                           DECEMBER 29,    DECEMBER 28,   JANUARY 3,
                                                               1993            1994          1996
                                                           -------------   ------------   ----------
<S>                                                        <C>             <C>            <C>
Cash paid (net of cash acquired)........................         $7, 430        $ 9,908      $11,249
Common stock issued.....................................               -          1,510        3,239
Notes issued............................................             233          3,200       10,644
Deferred cash payments..................................               -              -          500
Transaction and other costs.............................              78          2,056        2,753
                                                                 -------        -------      -------
                                                                   7,741         16,674       28,385
Liabilities assumed.....................................           3,882          5,641        2,378
                                                                 -------        -------      -------
                                                                  11,623         22,315       30,763
Fair value of tangible assets acquired, principally
 accounts receivable, inventory, and property
 and equipment..........................................           2,579          4,678        4,204
                                                                 -------        -------      -------
  Cost in excess of fair value of assets acquired and
   other intangible assets..............................         $ 9,044        $17,637      $26,559
                                                                 =======        =======      =======
</TABLE>

     Acquisitions made subsequent to January 3, 1996 were made for an aggregate
amount of $2,135, consisting of $485 in cash, $550 in notes, and 23,000 shares
of the Company's common stock.

     The unaudited results of operations for the year ended January 3, 1996 on a
pro forma basis as if the practices acquired in fiscal 1995 and fiscal 1996 to
date had been acquired as of the beginning of fiscal 1995 are as follows:
<TABLE>

<S>                                                          <C>
Net revenues...........................................      $58,828
Income from operations.................................        1,107
Net loss...............................................       (1,728)
Net loss per common share..............................        (0.29)
</TABLE>

     Excess of cost over fair value of net assets acquired and other intangible
 assets comprise the following:
<TABLE>
<CAPTION>
                                                                     DECEMBER 28,       JANUARY 3,
                                                                        1994              1996
                                                                     ------------       -----------
<S>                                                                  <C>                <C>
Excess of cost over fair value of net assets acquired............      $25,149            $50,877
Client lists.....................................................          591                946
Assembled work force.............................................          635              1,008
Non-competition agreements.......................................           12                115
                                                                       -------            -------
                                                                        26,387             52,946
  Accumulated amortization.......................................         (446)            (1,675)
                                                                       -------            -------
                                                                       $25,941            $51,271
                                                                       =======            =======
</TABLE>

                                     F-66
<PAGE>
 
                             THE PET PRACTICE, INC.

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                (IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)
 
 
NOTE 4 -- PROPERTY AND EQUIPMENT:
<TABLE>
<CAPTION>
                                          DECEMBER 28,    JANUARY 3,
                                              1994           1996
                                          -------------   -----------
<S>                                       <C>             <C>
 Land..................................      $  358         $ 1,582
 Buildings.............................       2,571           3,939
 Building and leasehold improvements...       1,374           1,459
 Furniture and equipment...............       2,255           7,683
                                             ------         -------
                                              6,558          14,663
  Less:  Accumulated depreciation......        (410)         (1,198)
                                             ------         -------
                                             $6,148         $13,465
                                             ======         =======
</TABLE>

     Depreciation expense was $59 for the period October 27, 1993 to December
29, 1993, $351 for the year ended December 28, 1994, and $788 for the year ended
January 3, 1996.

NOTE 5 -- NOTES PAYABLE AND LONG-TERM DEBT:

     Notes payable and long-term debt are comprised of the following:
<TABLE>
<CAPTION>
 
                                                                   DECEMBER 28,    JANUARY 3,
                                                                       1994           1996
                                                                   -------------   -----------
<S>                                                                <C>             <C>
Subordinated notes payable to stockholder, interest at 8% due
 quarterly, principal due 1998..................................       $ 12,391      $      -
Borrowings under lines of credit with banks (weighted average
 rate of 8.5% at December 28, 1994).............................         10,067             -
Notes payable (6%-13% interest) payable through 2006............          6,002        15,529
Mortgages payable (6%-11%), payable through  2010...............            973         2,500
Capital lease obligations (9.6% - 10.4%)........................          1,128         1,453
                                                                       --------       -------
                                                                         30,561        19,482
  Less:  Current portion........................................        (11,676)       (3,696)
                                                                       --------       -------
Long-term debt..................................................       $ 18,885       $15,786
                                                                       ========       =======
</TABLE>

   Scheduled maturities of long-term debt outstanding excluding capital lease
obligations as of January 3, 1996 were as follows:
<TABLE>

<S>                                                        <C>
     1996..............................................    $3,633
     1997..............................................     3,787
     1998..............................................     3,427
     1999..............................................     2,558
     2000..............................................     2,647
</TABLE>

     The subordinated notes payable to stockholder at December 28, 1994
represented borrowings pursuant to a $20,000 note between the Company and one of
its stockholders which permited it to borrow funds for acquisitions and general
corporate purposes.

                                     F-67
<PAGE>
 
                             THE PET PRACTICE, INC.

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                (IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)


     Notes and mortgages payable arose principally from acquisitions and include
certain amounts due to related parties.  Certain of the Company's acquisition
notes payable are secured by the assets of the veterinary practice acquired.

     The borrowings under lines of credit with a bank at December 28, 1994
represented borrowings pursuant to a $13,000 credit facility and were made at
the bank's prime rate.  Such notes were secured by the guarantee of a
stockholder.  In February 1995, the Company entered into a $5,000 line of credit
facility with another financial institution.  Borrowings under this facility
were made at market interest rates and were secured by a guarantee of a
stockholder as well as certain of the Company's operating subsidiaries.  Both of
these credit facilities with banks were terminated effective with the Company's
initial public offering.

     The book value of notes and long-term debt approximates their fair value.

NOTE 6 -- INCOME TAXES:

     Due to the Company's operating losses, no provision for federal income
taxes was recorded during any period. A provision for current state income taxes
was recorded during the years ended December 28, 1994 and January 3, 1996.

     The reconciliation of the federal statutory tax rate to the effective tax
rate is as follows:
<TABLE>
<CAPTION>

                                                                                            YEAR ENDED
                                                                OCTOBER 27 TO       --------------------------
                                                                 DECEMBER 29,       DECEMBER 28,    JANUARY 3,
                                                                    1993               1994           1996
                                                                -------------       -----------    -----------
<S>                                                             <C>                 <C>             <C>
Federal statutory tax rate.............................                (34)%              (34)%            (34)%
State income taxes, less related federal tax benefit...                  -                  4                3
Amortization not deductible for tax purposes...........                  1                  2                6
Losses for which no tax benefit was recognized.........                 33                 32               28
                                                                       ---                ---              ---
 Effective tax rate...................................                  -%                 4%               3%
                                                                       ===                ===              ===
</TABLE>
 
The components of net deferred taxes are as follows:
<TABLE>
<CAPTION>
                                                           DECEMBER 29,   DECEMBER 28,    JANUARY 3,
                                                              1993           1994           1996
                                                           -----------    ------------    ----------
<S>                                                        <C>            <C>             <C>
Net operating loss carryforwards.......................     $ 1,563        $ 3,113         $ 4,138
Accruals and reserves not currently deductible
 for tax purposes......................................          39            226             276
                                                            -------        -------         -------
Gross deferred tax assets..............................       1,602          3,339           4,414
Valuation allowance....................................      (1,279)        (3,033)         (3,730)
                                                            -------        -------         -------
Net deferred tax assets................................         323            306             684
                                                            -------        -------         -------
Depreciable assets.....................................        (323)          (203)           (454)
Intangible assets......................................           -           (103)           (230)
                                                            -------        -------         -------
Gross deferred tax liabilities.........................        (323)          (306)           (684)
                                                            -------        -------         -------
  Net deferred taxes...................................     $     -        $     -         $     -
                                                            =======        =======         =======
</TABLE>

     At January 3, 1996, the Company had net operating loss carryforwards for
federal income tax purposes of approximately $12,200 (the estimated tax benefit
of which is approximately $4,138).  Their use is limited to future taxable
earnings of the Company and, as specified in the Internal Revenue Code, use of
certain of the net operating loss carryforwards is limited as they were acquired
by the Company in a purchase of the stock of another company.  The carryforwards
expire in varying amounts through 2010.  A valuation reserve has been
established against the benefit of the net operating loss carryforwards.

                                     F-68
<PAGE>
 
                             THE PET PRACTICE, INC.

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                (IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)


NOTE 7 -- COMMITMENTS AND CONTINGENCIES:

 Operating leases:

     The Company leases certain office and veterinary care facilities as well as
vehicles and equipment under noncancellable operating leases which require
future minimum annual rentals as follows:
<TABLE>
<CAPTION>
 
                                                CAPITAL   OPERATING
                                                LEASES      LEASES
                                                -------   ----------
<S>                                             <C>       <C>
   1996......................................    $  198      $2,679
   1997......................................       198       2,509
   1998......................................       198       2,294
   1999......................................       180       2,105
   2000......................................       160       1,648
   Thereafter................................     1,758       7,019
                                                 ------
                                                  2,692
   Amounts representing interest.............     1,239
                                                 ------
   Present value of minimum lease payments        1,453
     Less current portion....................       (63)
                                                 ------
   Long-term obligation......................    $1,390
                                                 ======
</TABLE>

     Certain of the leases contain renewal options and escalation clauses which
require payments of additional rent to the extent of increases in related
operating costs.  Included in future rental commitments are payments totaling
$10,178 which will be made to related parties.  Six of these leases are with
partnerships in which a director of the Company is a partner, and these leases
expire at various dates from 1997 through 2003, although the Company has renewal
options.  Rent expense was $118 for the period October 27 to December 29, 1993,
$971 for the year ended December 28, 1994, and $1,865 for the year ended January
3, 1996.

 Contingent payments related to business acquisitions:

     In connection with certain acquisitions (see Note 3), the Company has
entered into contractual arrangements whereby additional shares of the Company's
common stock and cash may be issued to former owners of acquired practices upon
attainment of specified financial and non-financial criteria over periods of
three to five years as set forth in the respective agreements. The number of
shares of common stock and cash to be issued can not be determined until the
earnout periods expire and the attainment of criteria is established. If such
criteria are attained, but not exceeded, the Company will be obligated to make
cash payments of approximately $2,881 and issue approximately 90,000 shares of
common stock over the next five years.

     A lesser amount of cash would be paid and a lesser number of shares of
common stock would be issuable under certain acquisition agreements if the
financial criteria are not met and a greater amount of cash would be paid and a
greater number of shares of common stock would be issuable under certain
acquisition agreements if the financial criteria are exceeded. For example, if
the financial criteria with respect to each of the acquisitions were to be
exceeded by 20%, the Company would be obligated to make cash payments of $3,167
and issue approximately 109,000 shares of common stock over the next five years.
Since, by the terms of the related agreements, these payments are considered
contingent consideration for the acquired business, amounts payable pursuant to
these provisions, if earned, will be recorded as additional purchase price in
the period the criteria are attained.

                                     F-69
<PAGE>
 
                            THE PET PRACTICE, INC.

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                (IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)


     In addition, in certain circumstances, the Company is required to issue
additional shares of common stock if, on the second anniversary of the
acquisition closing, the market price of the common stock falls below specified
levels ranging from $10.00 to $16.00 per share.  Based on the market price of
the common stock at January 3, 1996, an aggregate of approximately 19,000 shares
would be issuable.  Additionally, the number of shares of common stock delivered
in connection with one acquisition as part of the purchase price was subject to
adjustment, such that the value of such shares was equal to $320 as of the date
of the Company's initial public offering. The Company issued an additional 1,334
shares of common stock in connection with such acquisition.  Additional shares
issued were recorded as an adjustment to the previously issued consideration.

     In connection with two acquisitions, the Company entered into arrangements
with the former owners, who are now employees, that provided for amounts to be
payable upon attainment of a number of specified financial and non-financial
criteria.  Since, by the terms of the related agreements these payments are
considered compensatory, amounts payable pursuant to these provisions, if
earned, are recorded as compensation expense.  In June 1995, the Company
renegotiated these arrangements to eliminate future payments based on
performance criteria in exchange for non-interest bearing notes payable by the
Company.  The settlement of these arrangements resulted in one-time, non-cash
charges to general and administrative expenses of approximately $383 and $705 in
the years ended December 28, 1994 and January 3, 1996, respectively.

     One arrangement for contingent compensation payments remains in place,
which calls for estimated aggregate payments of approximately $260 over the next
five years if specified criteria are attained.

NOTE 8 -- ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES:

     Accrued expenses and other current liabilities are comprised of the
following:
<TABLE>
<CAPTION>
                                                    DECEMBER 28,     JANUARY 3,
                                                       1994            1996
                                                    -------------    ----------
<S>                                                 <C>              <C>
   Accrued salaries, wages, and vacation...            $  507         $1,634
   Accrued interest........................             1,431            166
   Other...................................             3,839          3,384
                                                       ------         ------
                                                       $5,777         $5,184
                                                       ======         ======
</TABLE>

NOTE 9 -- EMPLOYEE BENEFITS:

 401(k) Plan:

     Beginning in April 1994, the Company sponsored a 401(k) plan for employees
with more than one year of service.  Contributions to the plan totaled $10 for
the period from inception of the Plan to December 28, 1994, and $14 for the year
ended January 3, 1996.


 1994 Stock Option Plan:

     The Company sponsors a stock option plan for key employees and directors.
There are available for options under the Plan a total of 400,000 shares of
common stock.  As of January 3, 1996, total options to purchase 100,250 shares
have been granted.  Such options are exercisable at prices ranging between $4.00
and $15.00 per share over the next 10 years.  All options are subject to a five-
year vesting period.  At January 3, 1996, 2,700 options were vested.  No options
have been exercised.

                                     F-70
<PAGE>
 
                            THE PET PRACTICE, INC.

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                (IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)


     Options are granted at the market value of the underlying shares as of the
grant date, therefore no compensation expense is recorded relative to the plan.

NOTE 10 -- STOCKHOLDERS' EQUITY (DEFICIT)

     On August 4, 1995, the Company consummated its initial public offering of
4,300,000 shares of common stock at $15.00 per share.  The net proceeds of the
offering of approximately $56,600 were used (i) to repay $12,391 principal
amount of related-party debt, together with accrued interest; (ii) to redeem
$800 of the Company's Redeemable Preferred Stock, together with accrued
dividends; (iii) to repay approximately $13,000 borrowed from United States
Trust Company of New York pursuant to a demand line of credit facility, together
with accrued interest; (iv) to repay approximately $6,000 borrowed from PNC
Bank, National Association, pursuant to a demand line of credit  facility,
together with accrued interest; and (v) to pay a fee of $500 to Foster
Management Company, of which a director of the Company is the Chairman and sole
stockholder, for services in connection with the consummation of the public
offering.  The remaining net proceeds of approximately $23,000 were added to
working capital and will be used primarily to finance future acquisitions and
capital expenditures and for general corporate purposes.

     In October 1993, the Company sold 3,600,000 shares of common stock to an
investment partnership managed by Foster Management Company at a price of $.055
per share.  During 1993, the Company sold 77,067 shares of common stock to an
officer of the company at a price of $.055 per share.

     During 1994, the Company also sold 160,000 shares of common stock to
officers, directors and employees of the Company for $.08 per share.  The
Company has entered into stock purchase agreements with certain of its directors
and certain of its executive officers pursuant to which such individuals
purchased their respective shares of common stock.  The stock purchase
agreements provide for restrictions on the sale of such shares and for the
ownership of such shares to vest ratably over a five-year period.  Unvested
shares may be repurchased by the Company at their original issued price in
certain circumstances.

NOTE 11 -- MANDATORILY REDEEMABLE PREFERRED STOCK:

     The Company is authorized to issue 1,000,000 shares of preferred stock,
$.01 par value. The powers, designations, preferences and relative,
participating, optional or other special rights are established by the Board of
Directors.

     During 1993, the Board of Directors authorized 10,000 shares of mandatorily
redeemable preferred stock, par value $.01 per share (the "Redeemable Preferred
Stock"), and the Company sold 8,000 shares of such Redeemable Preferred Stock to
an investment partnership managed by Foster Management Company for $100 per
share.  The Redeemable Preferred Stock is redeemable at $100 per share plus
cumulative unpaid dividends at a rate of 8% per annum at the Company's option.
Holders of the Redeemable Preferred Stock are entitled to preference payments in
the event of any liquidation, dissolution or winding-up of the Company.  The
Redeemable Preferred Stock was mandatorily redeemed at the closing of the
Company's initial public offering.

     Dividends on the Redeemable Preferred Stock of $10 for the period October
27, 1993 to December 29, 1993, $64 for the year ended December 28, 1994, and $42
for the year ended January 3, 1996 have been recorded as interest expense.

                                     F-71
<PAGE>
 
                             THE PET PRACTICE, INC.

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                (IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)


NOTE 12 -- SUBSEQUENT EVENT:

     On March 22, 1996, the Company announced that it signed a definitive
agreement providing for the merger of the Company with Veterinary Centers of
America, Inc. ("VCA").  If completed, this merger will result in the Company
becoming a wholly-owned subsidiary of VCA.  Consummation of the merger is
expected in the second quarter of 1996 and is subject to certain conditions.

                                     F-72
<PAGE>
 
                       REPORT OF INDEPENDENT ACCOUNTANTS

To the Board of Directors and Stockholders of
Professional Veterinary Hospitals of America, Inc.

In our opinion, the accompanying statements of operations, of stockholders' 
deficit and of cash flows present fairly, in all material respects, the results 
of operations and cash flows of Professional Veterinary Hospitals of America, 
Inc. for the year ended January 27, 1993 and for the period January 28, 1993 
through October 26, 1993 in conformity with generally accepted accounting 
principles. These financial statements are the responsibility of the Company's 
management; our responsibility is to express an opinion on these financial 
statements based on our audit. We conducted our audit of these statements in 
accordance with generally accepted auditing standards which require that we
plan and perform the audit to obtain reasonable assurance about whether the
financial statements are free of material misstatement. An audit includes
examining, on a test basis, evidence supporting the amounts and disclosures in
the financial statements, assessing the accounting principles used and
significant estimates made by management, and evaluating the overall financial
statement presentation. We believe that our audit provides a reasonable basis
for the opinion expressed above.


/s/ Price Waterhouse LLP

PRICE WATERHOUSE LLP

Philadelphia, PA
March 29, 1995

                                     F-73
<PAGE>
 
              PROFESSIONAL VETERINARY HOSPITALS OF AMERICA, INC.

                            STATEMENT OF OPERATIONS


<TABLE> 
<CAPTION> 
                                             Year ended      January 28 to
                                          January 27, 1993  October 26, 1993
                                          ----------------  ----------------
<S>                                       <C>               <C> 
Revenues................................     $8,198,609        $6,713,526
Direct costs of services................      7,087,949         5,334,202
                                             ----------        ----------
  Gross profit                                1,110,660         1,379,324
General and administrative expenses.....      1,234,988         1,282,267
                                             ----------        ----------
  Income (loss) from operations                (124,328)           97,057
Other expenses, net.....................        572,120           346,500
                                             ----------        ----------
  Net loss..............................     $ (696,448)       $ (249,443)
                                             ==========        ==========
</TABLE> 

   The accompanying notes are an integral part of these financial statements

                                     F-74
<PAGE>
 
              PROFESSIONAL VETERINARY HOSPITALS OF AMERICA, INC.

                      STATEMENT OF STOCKHOLDERS' DEFICIT
                   For the Year Ended January 27, 1993 and 
                the Period January 28, 1993 to October 26, 1993

<TABLE> 
<CAPTION>
                                                  Common stock
                               ------------------------------------------------
                                Class A            Class B           Capital in                     Total
                                shares             shares            excess of    Accumulated    stockholders'
                                issued    Amount   issued   Amount   par value      deficit        deficit
                               ---------  -------  -------  -------  ----------   ------------   ------------
<S>                            <C>        <C>      <C>      <C>      <C>          <C>            <C> 
Balance, January 29, 1992...   3,130,000  $31,300  25,000   $25,000  $2,652,020   $(3,207,672)   $  (499,352)
Repurchase and retirement of
  Class A common stock from
  former officer............    (280,000)  (2,800)                      (53,200)                     (56,000)
Net loss....................                                                         (696,448)      (696,448)
                               ---------  -------  ------   -------  ----------   -----------    -----------
Balance, January 27, 1993...   2,850,000   28,500  25,000    25,000   2,598,820    (3,904,120)    (1,251,800)
Net loss....................                                                         (249,443)      (249,443)
                               ---------  -------  ------   -------  ----------   -----------    -----------
Balance, October 26, 1993...   2,850,000  $28,500  25,000   $25,000  $2,598,820   $(4,153,563)   $(1,501,243)
                               =========  =======  ======   =======  ==========   ===========    ===========
</TABLE> 

  The accompanying notes are an integral part of these financial statements.

                                     F-75
<PAGE>
 
              PROFESSIONAL VETERINARY HOSPITALS OF AMERICA, INC.

                            STATEMENT OF CASH FLOWS

<TABLE> 
<CAPTION> 

                                                           Year ended       January 28 to
                                                         January 27, 1993  October 26, 1993
                                                         ----------------  ----------------
<S>                                                      <C>               <C> 
Cash flows from operating activities:
  Net loss .............................................   $(696,448)        $(249,443)
  Adjustments to reconcile net loss to net cash
   provided by operating activities:
    Depreciation and amortization.......................     347,579           268,224
    Rent concession.....................................     (19,934)            6,189
    Gain (loss) on disposal of property and equipment...      (1,418)            9,063
    Warrant redemption finance charge...................     264,000           196,000
    Changes in:
      Accounts receivable...............................       4,389           (11,023)
      Other assets......................................      (8,856)            5,212
      Inventory.........................................      19,100            25,500
      Prepaid expenses..................................     (17,365)           11,049
      Accounts payable..................................     (17,427)           (9,026)
      Accrued and other liabilities.....................     263,269            61,310
                                                           ---------         ---------
        Net cash provided by operating activities.......     136,889           313,055
                                                           ---------         ---------
Cash flows from financing activities:  
  Payments on long-term debt............................    (376,248)         (120,332)
  Stock repurchase from former officer..................     (56,000)
                                                           ---------         ---------
    Net cash (used for) financing activities............    (432,248)         (120,332)
                                                           ---------         ---------
Cash flows from investing activities:
  Proceeds from sale of property and equipment..........      67,220
  Capital expenditures..................................     (48,660)         (216,181)
                                                           ---------         ---------
    Net cash provided by (used for) investing
     activities.........................................      18,560          (216,181)
                                                           ---------         ---------
Net decrease in cash....................................    (276,799)          (23,458)
Cash, beginning of period...............................     373,188            96,389
                                                           ---------         ---------
Cash, end of period.....................................   $  96,389         $  72,931
                                                           =========         =========
Supplemental disclosure of cash flow information:
  Cash paid during the period for interest..............   $ 380,476         $  21,182
                                                           =========         =========
Noncash financing and investing activities:
  Debt relieved in disposal of property and
   equipment............................................   $ 126,272         $      -
                                                           =========         =========
</TABLE> 

  The accompanying notes are an integral part of these financial statements.

                                     F-76
<PAGE>
 
              PROFESSIONAL VETERINARY HOSPITALS OF AMERICA, INC.

                         NOTES TO FINANCIAL STATEMENTS

NOTE 1 - ACCOUNTING POLICIES:

  Basis of presentation:

     Professional Veterinary Hospitals of America, Inc. ("PVH" or the "Company")
provides on-site veterinary services and related activities in southeastern 
Michigan.

     PVH's accounting year was a 52-53 week fiscal year which ended on the last 
Wednesday in January. The results of operations and changes in stockholders' 
equity (deficit) and cash flows presented herein are for the year ended January 
27, 1993 and the period from January 28, 1993 through October 26, 1993 (see
Note 9).

  Net revenues:

     Net revenues are reported at the estimated amounts to be realized through 
payments from customers and are recognized when the service is performed.

  Inventory:

     Inventory consists of pharmaceuticals, retail pet products and other 
veterinary care products and is valued at lower of market or cost determined on 
a first-in, first-out basis.

  Property and equipment:

     Property and equipment are stated at cost less accumulated depreciation. 
Additions and improvements to property and equipment are capitalized and 
maintenance and repairs are charged to current operations. Adjustments of the 
assets and the related accumulated depreciation accounts are made for 
retirement and disposal of property and equipment with the resulting gain or 
loss included in the results of operations.

     Depreciation is provided substantially using the straight-line method. 
Estimated useful lives of the assets are:

<TABLE>
<S>                                       <C> 
     Building and building improvements.. Shorter of the life of the lease or 31.5 years
     Leasehold improvements.............. Shorter of the life of the lease or 10 years
     Furniture and equipment............. 5 to 10 years
</TABLE> 

  Goodwill:

     The excess of cost over acquired net assets (goodwill) is being amortized 
on a straight-line basis over its estimated useful life of 40 years.

  Cash equivalents:

     For purposes of the statement of cash flows, all highly liquid investments
with a maturity of three months or less are considered cash equivalents.

  Income taxes:

     The Company has adopted Statement of Financial Accounting Standards No. 
109, "Accounting for Income Taxes" (FAS 109). The asset and liability approach 
requires the recognition of deferred tax liabilities and assets for the expected
future tax consequences of temporary differences between the carrying amounts 
and the tax bases of assets and liabilities.

                                     F-77
<PAGE>
 
              PROFESSIONAL VETERINARY HOSPITALS OF AMERICA, INC.

                  NOTES TO FINANCIAL STATEMENTS - (Continued)

NOTE 2 - LEASES:

   PVH's facility leases are classified as operating leases and expire on 
various dates through January 21, 2002. Most leases contain renewal options. 
Additionally, PVH leases certain office and medical equipment under leases 
classified as capital with an initial or remaining term in excess of one year. 
Amounts charged to operations for rental expense were $606,960 and $424,328 for 
the fiscal year ended January 27, 1993 and the period ended October 26, 1993, 
respectively.

NOTE 3 - FINANCING ARRANGEMENT:

   On January 29, 1992, the Company entered into a sale and leaseback agreement 
in connection with two of its hospital facilities including land, building, 
furniture and equipment with Mack/Inkster Properties Limited Partnership, a 
Michigan limited partnership. Under the sale agreement, the Company sold the 
facilities for $600,000. In addition, the Company entered into an agreement to 
leaseback the facilities for a ten-year period with varying monthly rental 
charges of $5,800 to $15,000 over the life of the lease. The Company made lease 
payments totaling $69,600 and $52,200 during the year ended January 27, 1993 and
during the period from January 28 to October 26, 1993, respectively. Because the
agreement provides the Company with an option to repurchase the assets, the 
sale-leaseback is accounted for as a financing from the partnership. The net 
book value of the facilities is amortized over the life of the lease agreement.

   Concurrent with the purchase of the Company by The Pet Practice, Inc. (see 
Note 9), the Company purchased all of the property owned by Mack/Inkster 
Properties Limited Partnership for $700,000.

NOTE 4 - SUBORDINATED NOTES:

   On May 14, 1991, PVH issued subordinated notes with a face value of 
$1,400,000 and warrants to purchase 250,000 shares of Class A common stock to 
stockholders of the Company with interest at 11% payable in varying amounts 
through July 1, 1994. At October 26, 1993, $1,310,000 of the notes were 
outstanding.

   From July 1, 1994 through December 31, 1994, the holders of the warrants may 
purchase up to 250,000 shares of Class A common stock at $2.50 per share or 
require PVH to redeem each warrant for $3.00. If PVH defaults on principal 
payments under the subordinated notes, additional warrants may be issued.

   The Company provides for the estimated cost associated with redemption of the
warrants by recording charges to interest expense. Such charges were $452,000 
for the year ended January 27, 1993, and $196,000 for the period ended October 
26, 1993.

   Concurrent with the purchase of the Company by The Pet Practice, Inc. (see 
Note 9), the Company repaid the subordinated debt and related accrued interest 
and repurchased the warrants for a total of $1,600,000.

NOTE 5 - LONG-TERM DEBT:

   Other long-term debt arrangements consisted of the following at
    October 26, 1993:

   Note payable, bank, with monthly payments of $14,919 plus
    interest at 1% above prime due through October 1, 1994. This
    loan was repaid concurrent with the transaction described in
    Note 9 ........................................................ $356,725

   Obligations under capitalized leases (Note 3) ..................    8,235

   Note payable, bank, with interest at 12.75%, monthly payments of
    $387 including interest, due through April 30, 1995 ...........    6,970
                                                                    --------
   Total debt (all current) ....................................... $371,930
                                                                    ========

                                     F-78
<PAGE>
 
              PROFESSIONAL VETERINARY HOSPITALS OF AMERICA, INC.

                  NOTES TO FINANCIAL STATEMENTS - (Continued)

NOTE 6 - RELATED PARTY TRANSACTIONS:

   PVH Property Management Co., a partnership owned by two of the stockholders 
of PVH, leases office and clinic space to PVH. During the periods ended January 
27, 1993 and October 26, 1993, PVH paid $231,600 and $173,700, respectively, in 
lease payments to PVH Property Management Company.

Two of the stockholders of PVH are partners in the Mack/Inkster Properties 
Limited Partnership (see Note 3).

NOTE 7 - INCOME TAXES:

   No current or deferred provision for federal income taxes has been recorded
by the Company for the year ended January 27, 1993 or for the period January 28
to October 26, 1993 due to net operating losses incurred by the Company during
these periods. At October 26, 1993, PVH had net operating loss carryforwards of
approximately $3,957,000, which may be used to reduce future taxable income and
expires beginning in 1997. Their use is limited to future taxable earnings of
the Company and, as specified in the Internal Revenue Code, certain ownership
changes would result in limitations on the Company's ability to utilize its net
operating loss carryforwards.

   The provision for income taxes differs from the amount of income tax 
determined by applying statutory tax rates to pretax income primarily due to the
net operating losses for which no benefit is recorded.

NOTE 8 - COMMON STOCK:

   Class B common stock is entitled to such votes and dividends that it would be
entitled to had it been converted into Class A common stock. Upon liquidation, 
Class B common stock ranks senior to the rights of Class A common stock. In 
addition, Class B common stock is convertible, only in its entirety, to Class A 
common stock on a 100 to 1 basis.

NOTE 9 - SUBSEQUENT EVENT:

   On October 26, 1993, The Pet Practice, Inc., a Delaware corporation, acquired
100% of the stock of the Company.

                                     F-79
<PAGE>
 
                                PETS' RX, INC.
                                --------------
                          CONSOLIDATED BALANCE SHEETS
                          ---------------------------
                                 (In thousands)

<TABLE>
<CAPTION>
                        ASSETS
                                                         March 31,    December 31,
                                                           1996           1995
                                                        -----------   ------------
                                                        (Unaudited)     (Audited)
<S>                                                     <C>           <C>
CURRENT ASSETS:
 Cash and cash equivalents                                 $   251         $   752
 Other current assets                                          658             671
                                                           -------         -------
   Total current assets                                        909           1,423
PROPERTY AND EQUIPMENT, net                                  3,993           4,054
INTANGIBLE ASSETS, net                                       9,309           9,490
NOTES RECEIVABLE                                               100             100
OTHER ASSETS                                                   270             265
                                                           -------         -------
                                                           $14,581         $15,332
                                                           =======         =======
 
        LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
 Accounts payable                                          $ 1,061         $ 1,080
 Current portion of long-term obligations                    1,167           1,412
 Accrued expenses and other current liabilities              1,218           1,358
                                                           -------         -------
   Total current liabilities                                 3,446           3,850
                                                           -------         -------

LONG-TERM OBLIGATIONS, net of current portion                9,219           9,426
                                                           -------         -------

MINORITY INTEREST                                              269             251
                                                           -------         -------
COMMITMENTS AND CONTINGENCIES
REDEEMABLE CONVERTIBLE PREFERRED STOCK                       2,947           2,947
                                                           -------         -------
STOCKHOLDERS' DEFICIT
 Preferred stock, $0.01 par value                            3,395           3,395
 Convertible preferred stock (Series A) subscribed             200              --
 Common stock, $0.01 par value                                  63              63
 Additional paid-in capital                                  3,547           3,547
 Accumulated deficit                                        (8,505)         (8,147)
                                                           -------         -------
   Total stockholders' deficit                              (1,300)         (1,142)
                                                           -------         -------
                                                           $14,581         $15,332
                                                           =======         =======
</TABLE>

   The accompanying notes are an integral part of these consolidated balance
                                    sheets.

                                     F-80
<PAGE>
 
                                 PETS' RX, INC.
                                 --------------

                     CONSOLIDATED STATEMENTS OF OPERATIONS
                     -------------------------------------
               FOR THE THREE MONTHS ENDED MARCH 31, 1996 AND 1995
               --------------------------------------------------
                                 (In thousands)
                                  (Unaudited)



<TABLE>
<CAPTION>
 
                                                               1996       1995
                                                            --------    ------- 
<S>                                                          <C>        <C>
REVENUES 
                                                              $4,228     $3,422
                                                              ------     ------
 
COST OF SERVICES:
 Cost of revenues                                                803        623
 Salaries and wages of clinic operations                       1,661      1,359
 Other operating expenses of clinics                           1,043        950
                                                              ------     ------
  Gross profit                                                   721        490
                                                              ------     ------
GENERAL AND ADMINISTRATIVE                                       530        499
DEPRECIATION AND AMORTIZATION                                    307        280
                                                              ------     ------
  Operating loss                                                (116)      (289)
INTEREST EXPENSE                                                (229)      (258)
INTEREST INCOME                                                   12         25
                                                              ------     ------
  Loss before minority interest in income of subsidiary         (333)      (522)
MINORITY INTEREST IN INCOME OF SUBSIDIARY                         25         10
                                                              ------     ------
  Net loss                                                    $ (358)    $ (532)
                                                              ======     ======
</TABLE>

  The accompanying notes are an integral part of these consolidated financial
                                  statements.

                                     F-81
<PAGE>
 
                                 PETS' RX, INC.
                                 --------------

                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                     -------------------------------------

                  FOR THE MONTHS ENDED MARCH 31, 1996 AND 1995
                  --------------------------------------------
                                 (In thousands)
                                  (Unaudited)
<TABLE>
<CAPTION>
                                                                                  1996       1995
                                                                                 -------   -------
<S>                                                                              <C>       <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
 Net loss                                                                         $(358)    $ (532)
 Adjustments to reconcile net loss to net cash used in operating activities:
  Depreciation and amortization                                                     307        280
  Gain on sale of land and building                                                  --        (18)
  Minority interest in income of subsidiary in excess of distribution                25         10
  Changes in assets and liabilities
   Other current assets                                                              13        (40)
   Other assets                                                                      (5)       (52)
   Accounts payable                                                                 (20)       196
   Accrued expenses and other current liabilities                                   (72)       126
                                                                                  -----     ------
     Net cash used in operating activities                                         (110)       (30)
                                                                                  -----     ------
CASH FLOWS FROM INVESTING ACTIVITIES:
 Purchases of property and equipment                                                (64)        78
 Proceeds from sale of land and building                                             --        600
 Payments received under note receivable                                             --        193
                                                                                  -----     ------
     Net cash (used in) provided by investing activities                            (64)       715
                                                                                  -----     ------
CASH FLOWS FROM FINANCING ACTIVITIES:
                                                                                  
 Net proceeds from issuance of convertible preferred stock, preferred               
  stock subscribed, and common stock                                                200        100
 Principal payments under long-term obligations                                    (527)      (798)
                                                                                  -----     ------
     Net cash used in financing activities                                         (327)      (698)
                                                                                  -----     ------
     Net decrease in cash and cash equivalents                                     (501)       (13)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD                                    752      2,254
                                                                                  -----     ------
CASH AND CASH EQUIVALENTS AT END OF PERIOD                                        $ 251     $2,241
                                                                                  =====     ======
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:

 Interest paid during the year                                                    $ 282     $  243
 Non-cash financing activities -- Capital leases                                     --     $   60
</TABLE>

  The accompanying notes are an integral part of these consolidated financial
                                  statements.

                                     F-82
<PAGE>
 
                                 PETS' RX, INC.
                                 --------------

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                   ------------------------------------------

                                 MARCH 31, 1996
                                 --------------


1.  GENERAL:
    ------- 

The Company
- -----------

Pets' Rx, Inc. (the "Company") was incorporated in Delaware on May 28, 1991. The
Company is engaged in the acquisition and operation of veterinary clinics. As of
March 31, 1996, the Company operates 16 clinics in the San Jose and Sacramento,
California, and Las Vegas, Nevada, markets.

The Company has substantial operating and debt service obligations as a result
of the significant acquisition activity. The Company will require additional
capital in 1996 if the merger discussed in Note 3 is not consummated.

Principles of Consolidation
- ---------------------------

The accompanying consolidated financial statements include the accounts of the
Company and its majority-owned subsidiary and have been prepared in accordance
with generally accepted accounting principles for interim financial information.
Accordingly, they do not include all of the information and footnotes required
by generally accepted accounting principles for complete financial statements.
All significant intercompany transactions and balances have been eliminated. The
results of operations for the three months ended March 31, 1996 and 1995 are not
necessarily indicative of the results to be expected for the full year. Minority
interest on the accompanying balance sheet represents the initial contribution
of assets to the subsidiary by the minority member increased by the member's
share of income less distributions made.

2.  RECLASSIFICATIONS:
    ----------------- 

Certain prior year amounts have been reclassified to conform to their 1995
classifications.

3.  MERGER AGREEMENT:
    ---------------- 

In February, 1996 the Company entered into a merger agreement (the
"Agreement")with Veterinary Centers of America, Inc. ("VCA"). Under the terms of
the Agreement as amended, which is intended to qualify for pooling-of-interests
accounting, stockholders and rights holders, as defined, are to receive shares
of VCA common stock, par value $0.001 with a market value on June 14,1996 of
approximately $22.4 million.  The stockholders of the Company voted to approve
the merger on June 14, 1996 and the merger is expected to be consummated on June
18, 1996.

4.  SUBSEQUENT EVENT:
    ---------------- 

During the second quarter of 1996, the Company received additional working
capital through the issuance of notes payable to existing shareholders and to
Veterinary Centers of America, Inc. in the amount of $200,000 and $210,000,
respectively.

                                     F-83
<PAGE>
 
                   Report of Independent Public Accountants



To the Board of Directors and
   Stockholders of Pets' Rx, Inc.:

We have audited the accompanying consolidated balance sheet of Pets' Rx, Inc. (a
Delaware corporation) and subsidiary as of December 31, 1995, and the related
consolidated statements of operations, redeemable preferred stock and
stockholders' equity (deficit), and cash flows for the year then ended. These
financial statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audit.

We conducted our audit in accordance with generally accepted auditing standards
which require that we plan and perform the audit to obtain reasonable assurance
about whether the financial statements are free of material misstatement. An
audit includes examining, on a test basis, evidence supporting the amounts and
disclosures in the financial statements. An audit includes assessing the
accounting principles used and significant estimates made by management, as well
as evaluating the overall financial statement presentation. We believe that our
audit provides a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of Pets' Rx, Inc. and subsidiary
as of December 31, 1995, and the results of their operations and their cash
flows for the year then ended in conformity with generally accepted accounting
principles.

/s/ Arthur Andersen LLP

San Jose, California
March 20, 1996

                                     F-84
<PAGE>
 
                      REPORT OF INDEPENDENT ACCOUNTANTS

To The Board of Directors and 
Stockholders of Pets' Rx, Inc.

In our opinion, the accompanying balance sheet and the related statements of
operations, of redeemable preferred stock and stockholders' equity (deficit) and
of cash flows present fairly, in all material respects, the financial position
of Pets' Rx, Inc at December 31, 1994 and the results of its operations and its
cash flows for the years ended December 31, 1994 and 1993 in conformity with
generally accepted accounting principles. These financial statements are the
responsibility of the Company's management; our responsibility is to express an
opinion on these financial statements based on our audits. We conducted our
audits of these statements in accordance with generally accepted auditing
standards which require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material
misstatement. An audit includes examining on a test basis, evidence supporting
the amounts and disclosures in the financial statements, assessing the
accounting principles used and significant estimates made by management, and
evaluating the overall financial statement presentation. We believe that our
audits provide a reasonable basis for the opinion expressed above.

/s/ Price Waterhouse LLP

PRICE WATERHOUSE LLP
San Jose, California
September 12, 1995

                                     F-85
<PAGE>
 
                                PETS' RX, INC.
                                --------------

                          CONSOLIDATED BALANCE SHEETS
                          ---------------------------

                       AS OF DECEMBER 31, 1995 AND 1994
                       --------------------------------
                (In thousands, except share and per share data)

                                    ASSETS
                                    ------
<TABLE>
<CAPTION>
                                                                                 1995        1994          
                                                                                -------     -------        
<S>                                                                             <C>         <C>            
CURRENT ASSETS:                                                                                            
  Cash and cash equivalents                                                     $   752     $ 2,254        
  Other current assets (Note 2)                                                     671         571        
                                                                                -------     -------        
          Total current assets                                                    1,423       2,825        
                                                                                                           
PROPERTY AND EQUIPMENT, net (Note 2)                                              4,054       4,138        
                                                                                                           
INTANGIBLE ASSETS, net (Note 2)                                                   9,490       9,909        
                                                                                                           
NOTE RECEIVABLE (Note 3)                                                            100         293        
                                                                                                           
OTHER ASSETS                                                                        265         118        
                                                                                -------     -------        
                                                                                $15,332     $17,283        
                                                                                =======     =======        

                LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
                ----------------------------------------------
 
CURRENT LIABILITIES:
  Accounts payable                                                              $ 1,080     $   854  
  Current portion of long-term obligations (Note 4)                               1,412         702  
  Accrued expenses and other current liabilities (Note 2)                         1,358       1,188  
                                                                                -------     -------  
          Total current liabilities                                               3,850       2,744  
                                                                                -------     -------  
LONG-TERM OBLIGATIONS, net of current portion (Note 4)                            9,426      10,986  
                                                                                -------     -------  
MINORITY INTEREST (Note 3)                                                          251         -  
                                                                                -------     -------  
COMMITMENTS AND CONTINGENCIES (Note 3 and 9)                                                         
                                                                                                     
REDEEMABLE CONVERTIBLE PREFERRED STOCK:                                                              
2,000,000 shares designated; 915,464 shares issued and outstanding in 1995                           
 and 1994 (Note 5)                                                                2,947       2,947  
                                                                                                     
                                                                                -------     -------  
STOCKHOLDERS' EQUITY (DEFICIT) (Notes 6 and 7):                                                      
  Preferred stock, $0.01 par value; 5,000,000 shares authorized                                      
    Convertible preferred stock, 100,000 shares designated  Series A; 38,000                         
     and 35,000 shares issued and outstanding    in 1995 and 1994                 3,395       3,095  
                                                                                                     
    Convertible preferred stock (Series A) 5,000 shares                                              
      subscribed                                                                      -         150  
  Common stock, $0.01 par value; 20,000,000 shares authorized; 6,265,685 and                         
   6,069,261 shares issued and outstanding in 1995 and 1994                          63          61  
                                                                                                     
  Additional paid-in capital                                                      3,547       3,470  
  Accumulated deficit                                                            (8,147)     (6,170) 
                                                                                -------     -------  
          Total stockholders' equity (deficit)                                   (1,142)        606  
                                                                                -------     -------  
                                                                                $15,332     $17,283  
                                                                                =======     =======   
</TABLE>

                                    F-86   
<PAGE>
 
                                PETS' RX, INC.
                                --------------


                     CONSOLIDATED STATEMENTS OF OPERATIONS
                     -------------------------------------

             FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
             ----------------------------------------------------
                                (In thousands)


<TABLE>
<CAPTION>
                                               1995      1994      1993
                                              -------   -------   ------- 
<S>                                           <C>       <C>       <C>
REVENUES                                      $15,622   $ 9,638   $ 5,785
                                              -------   -------   -------
COSTS OF SERVICES:
  Cost of revenues                              3,045     2,055     1,214
  Salaries and wages of clinic operations       6,136     4,162     2,429
  Other operating expenses of clinics           4,055     2,562     1,594
                                              -------   -------   -------
                                               13,236     8,779     5,237
                                              -------   -------   -------
          Gross profit                          2,386       859       548
 
GENERAL AND ADMINISTRATIVE                      2,203     1,777     1,054
 
DEPRECIATION AND AMORTIZATION                   1,200       919       562
 
WRITE-OFF OF GOODWILL                             -         -         123
                                              -------   -------   -------
          Operating loss                       (1,017)   (1,837)   (1,191)
 
INTEREST EXPENSE                               (1,009)   (1,006)     (352)
 
INTEREST INCOME                                    99        38        21
                                              -------   -------   -------
          Loss before minority interest in
           income of subsidiary                (1,927)   (2,805)   (1,522)
 
 
MINORITY INTEREST IN INCOME OF SUBSIDIARY          50       -         -
                                              -------   -------   -------
          Net loss                            $(1,977)  $(2,805)  $(1,522)
                                              =======   =======   =======
</TABLE>


                  The accompanying notes are an integral part
                  of these consolidated financial statements.

                                     F-87
<PAGE>
 
                                 PETS' RX, INC.
                                 --------------

 CONSOLIDATED STATEMENTS OF REDEEMABLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY
 ------------------------------------------------------------------------------
                                   (DEFICIT)
                                   ---------

              FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
              ----------------------------------------------------
                       (In thousands, except share data)
<TABLE>
<CAPTION>
                                                                                               Stockholders' Equity (Deficit)
                                                                                        -----------------------------------------
                                                                      Redeemable           Series A                               
                                                                    Preferred Stock     Preferred Stock           Common Stock      
                                                                    ---------------     ----------------      -------------------- 
                                                                     Shares  Amount     Shares   Amount         Shares      Amount 
                                                                    -------  ------     ------  --------      ---------     ------ 
<S>                                                                 <C>      <C>        <C>     <C>           <C>           <C>    
BALANCE AT DECEMBER 31, 1992                                        792,170  $2,515        -    $   -         1,792,500       $18 

  Issuance of common stock warrants                                     -       -          -        -               -           -  

  Issuance of redeemable preferred stock warrants                       -       -          -        -               -           -  

  Redeemable preferred stock dividend                                59,424     208        -        -               -           -  

  Subscription of Series C preferred stock                              -       -          -        -               -           -  

  Net loss                                                              -       -          -        -               -           -  

                                                                    -------  ------     ------   ------       ---------       --- 
BALANCE AT DECEMBER 31, 1993                                        851,594   2,723        -        -         1,792,500        18 

  Redeemable preferred stock dividend                                63,870     224        -        -               -           -  

  Issuance of common stock for surrender of Series C                    
   preferred stock subscription                                         -       -          -        -           537,500         5 

  Issuance of Series A convertible preferred                            
   stock, net of issuance cost of $238                                  -       -       35,000    3,262              -          -

  Issuance of common stock to directors in conjunction                  
   with sale of Series A preferred stock                                -       -          -       (167)        270,000         3

  Subscription of Series A convertible preferred stock                  -       -          -        -               -           -  

  Issuance of common stock for exercise and surrender                   
   of warrants                                                          -       -          -        -           645,000         6 

  Issuance of common stock for payment of note interest                 -       -          -        -           357,903         4 

  Issuance of common stock for note conversion                          -       -          -        -         2,441,358        25 

  Issuance of common stock for acquisition                              -       -          -        -            25,000         -  

  Issuance of common stock warrants                                     -       -          -        -               -           -  

  Net loss                                                              -       -          -        -               -           -  
                                                                    -------  ------     ------   ------       ---------       --- 
BALANCE AT DECEMBER 31, 1994                                        915,464   2,947     35,000    3,095       6,069,261        61 

     Issuance of Series A convertible preferred stock                   -       -        3,000      300             -           -  

     Issuance of common stock for bridge note conversion                -       -          -        -           142,960         2 

     Issuance of common stock for exercise and surrender of             
      warrants                                                          -       -          -        -            53,464         -  

     Net loss                                                           -       -          -        -               -           -
                                                                    -------  ------     ------   ------       ---------        --- 
BALANCE AT DECEMBER 31, 1995                                        915,464  $2,947     38,000   $3,395       6,265,685        $63
                                                                    =======  ======     ======   ======       =========        ===
</TABLE>

  The accompanying notes are an integral part of these consolidated financial
                                  statements.

<TABLE> 
<CAPTION> 
                                                                           Stockholders' Equity (Deficit)
                                                                   -------------------------------------------------------
                                                                    Additional                                                
                                                                      Paid-in        Stock         Accumulated                  
                                                                      Capital      Subscribed        Deficit       Total            
                                                                    ----------     -----------     -----------    --------          
<S>                                                                 <C>            <C>             <C>            <C>               
BALANCE AT DECEMBER 31, 1992                                           $1,386      $   -           $(1,411)       $     (7)      
  Issuance of common stock warrants                                       101          -               -               101       
  Issuance of redeemable preferred stock warrants                         121          -               -               121     
  Redeemable preferred stock dividend                                     -            -              (208)           (208)      
  Subscription of Series C preferred stock                                -            200             -               200         
  Net loss                                                                -            -            (1,522)         (1,522)   
                                                                       -----       -------         -------         -------  
BALANCE AT DECEMBER 31, 1993                                           1,608           200          (3,141)         (1,315)        
  Redeemable preferred stock dividend                                    -             -              (224)           (224)      
  Issuance of common stock for surrender of Series C                                                                                
   preferred stock subscription                                          195          (200)            -               -         
  Issuance of Series A convertible preferred                                                                                        
   stock, net of issuance cost of $238                                   -             -               -             3,262          
  Issuance of common stock to directors in conjunction                                                                              
   with sale of Series A preferred stock                                 164           -               -               -
  Subscription of Series A convertible preferred stock                   -             150             -               150        
  Issuance of common stock for exercise and surrender                       
   of warrants                                                            49           -               -                55        
  Issuance of common stock for payment of note interest                  219           -               -               223    
  Issuance of common stock for note conversion                         1,207           -               -             1,232         
  Issuance of common stock for acquisition                                15           -               -                15        
  Issuance of common stock warrants                                       13           -               -                13        
  Net loss                                                                -            -            (2,805)         (2,805)       
                                                                       -----       -------         -------         -------  
BALANCE AT DECEMBER 31, 1994                                           3,470           150          (6,170)            606  
     Issuance of Series A convertible preferred stock                    -            (150)            -               150   
     Issuance of common stock for bridge note conversion                  77           -               -                79         
     Issuance of common stock for exercise and surrender of              
      warrants                                                           -             -               -               -           
     Net loss                                                            -             -            (1,977)         (1,977)
                                                                       -----       -------         -------         -------
BALANCE AT DECEMBER 31, 1995                                           3,547       $   -           $(8,147)        $(1,142)    
                                                                       =====       =======         =======         =======        
</TABLE>

  The accompanying notes are an integral part of these consolidated financial
                                  statements.

                                     F-88
<PAGE>
 
                                PETS' RX, INC.
                                --------------


                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                     -------------------------------------

             FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
             ----------------------------------------------------
                                (In thousands)

<TABLE>
<CAPTION>
                                                                                      1995            1994           1993   
                                                                                    --------        --------       -------- 
<S>                                                                                 <C>             <C>            <C>      
CASH FLOWS FROM OPERATING ACTIVITIES:                                                                                       
  Net loss                                                                          $(1,977)        $(2,805)       $(1,522) 
  Adjustments to reconcile net loss to net cash used in operating activities-                                               
    Depreciation and amortization                                                     1,200             919            562  
    Gain on sale of land and building                                                   (19)            -              -    
    Write-off of goodwill                                                               -               -              123  
    Minority interest in income of subsidiary in excess of distributions                  7             -              -    
    Changes in assets and liabilities, net of effect of acquired clinics-                                                   
      Other current assets                                                              (88)            116           (136) 
      Other assets                                                                       19             (51)           (36) 
      Accounts payable                                                                  607             476            115  
      Accrued expenses and other current liabilities                                     32             954            219  
                                                                                    -------         -------        -------  
            Net cash used in operating activities                                      (219)           (391)          (675) 
                                                                                    -------         -------        -------  
CASH FLOWS FROM INVESTING ACTIVITIES:                                                                                       
  Purchases of property and equipment                                                  (916)           (114)          (160) 
  Purchases of veterinary clinics                                                       (40)           (862)        (1,140) 
  Sale of marketable securities                                                         -               -              140  
  Proceeds from sale of land and building                                               600             -              -    
  Payments received (advances made) under note receivable                               193             (98)             2  
                                                                                    -------         -------        -------  
             Net cash used in investing activities                                     (163)         (1,074)        (1,158) 
                                                                                    -------         -------        -------  
CASH FLOWS FROM FINANCING ACTIVITIES:                                                                                       
  Proceeds from issuance of long-term obligations                                         -             294          1,426  
  Proceeds from issuance of redeemable preferred stock warrants and                                                         
    common stock warrants                                                                 -              13            222  
  Net proceeds from issuance of convertible preferred stock, preferred                                                      
    stock subscribed, and common stock                                                  150           3,467            200  
  Principal payments under long-term obligations                                     (1,270)           (603)          (356) 
                                                                                    -------         -------        -------  
          Net cash provided by (used in) financing activities                        (1,120)          3,171          1,492  
                                                                                    -------         -------        -------  
          Net increase (decrease) in cash and cash equivalents                       (1,502)          1,706           (341) 
                                                                                                                            
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR                                        2,254             548            889  
                                                                                    -------         -------        -------  
CASH AND CASH EQUIVALENTS AT END OF YEAR                                            $   752         $ 2,254        $   548  
                                                                                    =======         =======        =======  
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:                                                                           
  Interest paid during the year                                                     $   972         $   982        $   324  
  Non-cash financing activities-                                                                                            
    Payment of accrued interest on notes by issuance of common stock                $   -           $   223        $   -    
    Conversion of notes payable to common stock                                     $    79         $ 1,232        $   -    
    Capital leases                                                                  $    78         $   -          $   -    
    Conversion of accounts payable to note payable                                  $   381         $   -          $   -    
</TABLE>

  The accompanying notes are an integral part of these consolidated financial
                                  statements.

                                     F-89
<PAGE>
 
                                PETS' RX, INC.
                                --------------


                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                  ------------------------------------------

                               DECEMBER 31, 1995
                               -----------------



1.   THE COMPANY AND ITS SIGNIFICANT ACCOUNTING POLICIES:
     --------------------------------------------------- 

The Company
- -----------

Pets' Rx, Inc. (the "Company") was incorporated in Delaware on May 28, 1991. The
Company is engaged in the acquisition and operation of veterinary clinics. As of
December 31, 1995, the Company operates 16 clinics in the San Jose and
Sacramento, California, and Las Vegas, Nevada, markets.

The Company has substantial operating and debt service obligations as a result
of the significant acquisition activity (see Note 3). The Company will require
additional capital in 1996 if the merger discussed in Note 11 is not
consummated.

Use of Estimates in the Preparation of Financial Statements
- -----------------------------------------------------------

The preparation of financial statements in conformity with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts of assets and liabilities and disclosure of
contingent assets and liabilities at the date of the financial statements and
the reported amounts of revenues and expenses during the reporting period.
Actual results could differ from the estimates.

Principles of Consolidation
- ---------------------------

The accompanying consolidated financial statements include the accounts of the
Company and its majority-owned subsidiary. All significant intercompany
transactions and balances have been eliminated. Minority interest on the
accompanying balance sheet represents the initial contribution of assets to the
subsidiary by the minority member increased by the member's share of income less
distributions made.

Revenue Recognition
- -------------------

Revenues are recognized upon performance of veterinary services or sale of
related veterinary products.

Cash Equivalents
- ----------------

All highly liquid investments purchased with an original maturity of three
months or less are considered to be cash equivalents.

Inventories
- -----------

Inventories consist of veterinary supplies, pharmaceuticals, and retail
veterinary products and are stated at the lower of cost, determined using the
first-in, first-out basis, or market.

                                     F-90
<PAGE>
 
Property and Equipment
- ----------------------

Property and equipment are stated at cost. Property and equipment, other than
leasehold improvements, are depreciated using the straight-line method over the
estimated useful lives of the assets, generally thirty-seven years for buildings
and three to seven years for equipment. Amortization of leasehold improvements
is computed using the straight-line method over the shorter of the remaining
lease term or the estimated useful lives of the improvements.

Intangible Assets
- -----------------

Acquired animal records are valued based on their expected future contribution
and are amortized using the straight-line method over the estimated lives of the
records, generally seven years. Payments due under covenants not to compete are
capitalized and amortized over the life of the covenants, generally five years,
using the straight-line method. The excess of the Company's investment in
veterinary clinics over the fair value of the net assets acquired (goodwill) is
amortized using the straight-line method over its estimated useful life of 40
years. Intangible assets relating to discontinued clinics are charged to expense
upon approval of the decision to close the clinic.

Income Taxes
- ------------

Income taxes are determined using an asset and liability approach that
recognizes deferred tax assets and liabilities for the expected future tax
consequences of events that have been recognized in the Company's financial
statements or tax returns.

New Accounting Standards
- ------------------------

In October 1995, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards (SFAS) No. 123, "Accounting for Stock-Based
Compensation," which will be effective for the Company's 1996 fiscal year. SFAS
No. 123 allows companies which have stock-based compensation arrangements with
employees to adopt a new fair-value basis of accounting for stock options and
other equity instruments, or to continue to apply the existing accounting rules
under Accounting Principles Board ("APB") Opinion No. 25, "Accounting for Stock
Issued to Employees" but with additional financial statement disclosure. The
Company plans to continue to account for stock-based compensation arrangements
under APB Opinion No. 25 and, therefore, does not anticipate SFAS No. 123 will
have a material impact on its financial position, results of operations or cash
flows.

In March 1995, the Financial Accounting Standards Board issued SFAS No. 121,
"Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to
Be Disposed of." This pronouncement requires that long-lived assets and certain
identifiable intangible assets be reviewed for impairment whenever events or
changes in circumstances indicate that the carrying amount of an asset may not
be recoverable. An impairment loss is to be recognized when the sum of
undiscounted cash flows is less than the carrying amount of the asset.
Measurement of the loss for assets that the entity expects to hold and use is to
be based on the fair value of the asset. Although this pronouncement did not
have a material impact on the Company's financial condition or results of
operations at adoption in 1996, its provisions will be applicable to any future
assessments of its long-lived assets. Goodwill not associated with long-lived
assets will continue to be assessed under APB Opinion No. 17.

                                     F-91
<PAGE>
 
Reclassifications
- -----------------

Certain prior year amounts have been reclassified to conform to their 1995
classifications.

2.   BALANCE SHEET COMPONENTS (in thousands):
     --------------------------------------- 

<TABLE>
<CAPTION>
                                                         December 31,     
                                                      -----------------   
                                                        1995      1994    
                                                      -------   -------
<S>                                                   <C>       <C> 
     Other current assets:                                     
       Accounts receivable, net                         $   205   $   210 
       Inventories                                          429       346
       Prepaid expenses                                      37        15  
                                                         -------   -------   
                                                         $   671   $   571    
                                                         =======   =======  
     Property and equipment:                                
       Buildings                                         $ 2,002   $ 2,487                    
       Clinic equipment                                    1,534     1,381  
       Leasehold improvements                                682       254
       Computer and office equipment                         627       290   
                                                         -------   -------       
                                                           4,845     4,412 
       Less- Accumulated depreciation and                     
         amortization                                       (939)     (537) 
                                                         -------   -------     
                                                           3,906     3,875 
                                                              
       Land                                                  148       263   
                                                         -------   -------   
                                                         $ 4,054   $ 4,138   
                                                         =======   =======    
                  
                                                            
     Intangible Assets: 
       Covenants not to compete and animal records       $ 3,314   $ 3,351 
       Goodwill                                            8,359     7,960 
                                                         -------   ------- 
                                                          11,673    11,311 
       Less- Accumulated amortization                     (2,183)   (1,402)
                                                         -------   ------- 
                                                         $ 9,490   $ 9,909 
                                                         =======   ======= 
     Accrued Expenses and Other Current Liabilities:                       
       Payroll                                           $   246   $   207 
       Professional services                                 252       139 
       Vacation                                              183       145 
       Settlement                                            200       350 
       Other                                                 477       347 
                                                         -------   ------- 
                                                         $ 1,358   $ 1,188 
                                                         =======   =======  
</TABLE>

                                     F-92
<PAGE>
 
3.   ACQUISITIONS:
     ------------ 

Since its inception, the Company has completed the acquisition of 19 veterinary
clinics (of which three have been merged into other clinics). All of the
acquisitions were accounted for using the purchase method of accounting;
accordingly, the costs of these acquisitions have been allocated to assets
acquired based on their fair value at date of acquisition. The results of the
acquired clinics are included in the Company's results commencing from the date
of acquisition.

During 1993, the Company completed the acquisition of four veterinary clinics
for total consideration of $6,733,000 consisting of $1,140,000 in cash,
$5,350,000 in secured promissory notes payable, $200,000 payable under covenants
not to compete, and the assumption of $43,000 in trade and payroll liabilities.

During 1994, the Company completed the acquisition of six veterinary clinics for
total consideration of $4,031,000 consisting of $862,000 in cash, $2,529,000 in
secured promissory notes payable, $325,000 payable under convenants not to
compete, 25,000 shares of newly issued common stock of the Company valued at
$15,000 and the assumption of $300,000 of notes payable.

In conjunction with one of the 1994 acquisitions, the Company advanced cash of
$100,000 to the seller in exchange for an unsecured note receivable. Under the
terms of the note, the Company will receive quarterly installments of interest
at a rate of 7.5% per annum, with the entire principal balance and all accrued
and unpaid interest due on November 1, 2004.

The Company is contingently obligated for additional purchase price
consideration related to one of its 1994 acquisitions. The amount to be paid
equals 50 percent of the amount by which the revenues for the twelve-month
period ending September 1997 exceed a base revenue amount. This additional
consideration will be recorded as additional purchase price when and if earned.

During 1995, the Company completed the acquisition of two veterinary clinics. In
April 1995, the Company acquired a veterinary hospital for a total consideration
of $218,000 consisting of $40,000 in cash, $25,000 in secured promissory note
payable, $15,000 payable under covenants not to compete, $31,000 payable under
an assumed lease obligation, and $32,000 in other assumed liabilities. The
agreement also requires an additional payment based on revenues derived from 
pre-acquisition clients during the eighteen month period after the acquisition.
As such, the Company recorded additional purchase price and a liability of
$75,000 for the amounts expected to be paid in 1996. The purchase price will be
adjusted in 1996 to reflect the actual payment.

During 1995, a limited liability company (LLC) was formed by combining a
veterinary clinic owned by the Company (Spring Mountain Clinic) with the
practice of another veterinary clinic owned by an unrelated party. Certain
assets were contributed by each party to form the new entity, which is not
liable for any contracts or for any indebtedness relating to the predecessor
clinics. The Company has an 80% interest in the LLC. The Company has certain
obligations under an operating lease for the real property of the facility used
by the other member prior to the consolidation of the operations of the LLC into
the Spring Mountain clinic. Upon the occurrence of certain events, including an
initial public offering or merger with a public company (see Note 11), the
minority owner's interest may be converted into shares of the public entity.

                                     F-93
<PAGE>

The pro forma results listed below are unaudited and reflect purchase price
accounting adjustments assuming the 1994 and 1995 acquisitions occurred at
January 1, 1994. The pro forma results are not necessarily indicative of what
actually would have occurred if the acquisitions had been in effect for the
entire periods presented. In addition, they are not intended to be a projection
of future results and do not reflect any efficiencies that might be achieved
from the combined operations.

<TABLE>
<CAPTION>
                                                  1995               1994
                                               ----------          --------
         <S>                                   <C>                 <C>
         Revenues                              $15,863             $13,426
         Net loss                               (1,962)             (3,004)
</TABLE> 

4.     LONG-TERM OBLIGATIONS:
       ----------------------
 Long-term obligations consisted of the following (in thousands, except share
 data):
                                                            
<TABLE> 
<CAPTION> 
                                                                                December 31,
                                                                         ---------------------------
                                                                            1995              1994
                                                                         ----------        ---------
     <S>                                                                <C>                <C> 
     Promissory notes, secured by clinics, bearing                       
      interest at interest rates between 7% and 10%                      
      payable monthly, principal is generally due in                     
      monthly installments through July 2014                              $ 7,517           $ 8,285                     
                                                                         
     Promissory note, interest at prime plus 3%                          
      (11.75% at December 31, 1995), principal and                       
      interest payable in monthly installments through                       133                154                            
      July 2000                                                          
                                                                         
     Convertible promissory note payable to a                            
      shareholder, officer and director, secured by a                    
      clinic, interest at 9% per annum payable                           
      semi-annually, principal due July 1996,                            
      convertible into 75,000 shares of common stock                         250                250               
                                                                         
     Convertible promissory notes, secured by clinics,                   
      interest at 7% per annum payable monthly,                          
      principal due through December 2003, convertible                   
      into 88,625 shares of common stock                                     649                649                              
                                                                         
     Convertible promissory note payable to an                                                       
      employee, secured by a clinic, interest at 8.5%                    
      per annum, interest and principal payable in                       
      monthly installments from January 1994 through                     
      December 1998, convertible into 100,000 shares of                  
      common stock                                                           671                686  
                                                                         
     Convertible promissory notes payable primarily to                   
      directors and stockholders, secured by common                      
      stock and key man life insurance, interest at 12%                  
      per annum payable annually, principal due                          
      December 1998, convertible into shares of common                   
      stock at a conversion rate of $0.6233                                  183                272
                                                                         
     Convertible promissory notes payable primarily                      
       to stockholders, interest at 12%, repaid at                       
       maturity on January 1, 1996                                           307                307

</TABLE>

                                     F-94
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                          December 31,
                                                                                      --------------------
                                                                                         1995       1994 
                                                                                      --------    --------
     <S>                                                                              <C>         <C>
     Obligations under covenants not to compete,            
      payable in installments through 2003                                                 782       1,005
                                                                                                          
     Installment obligations bearing interest at 8% to                                                    
      10.25%, due through 2005                                                             295         -  
                                                                                                          
     Installment obligations, variable interest rates,                                                    
      periodic installments due through 1996                                               -           131 
                                                                                                          
     Capital lease obligations (see Note 9)                                                 69         -  
                                                                                       -------     -------
     Total obligations                                                                  10,856      11,739
                                                                                                          
     Less- Unamortized portion of discount on notes                                                       
      payable                                                                              (18)        (51)
                                                                                                          
     Less- Current portion                                                              (1,412)       (702)
                                                                                       -------     -------
     Total long-term obligations                                                      $  9,426     $10,986
                                                                                       =======     ======= 
</TABLE> 
 
Future principal payments, excluding capital lease obligations (see Note 9), are
as follows (in thousands):
 
<TABLE> 
<CAPTION> 

          Year Ending
          December 31,
          ------------                                                    
          <S>                                      <C>                    
               1996                                $ 1,398                   
               1997                                  1,650                
               1998                                  1,555                
               1999                                    476                
               2000                                    429                
               Thereafter                            5,279                
                                                   -------                
                                                   $10,787                
                                                   =======                   
</TABLE>

In 1995, the Company restructured a $50,000 payment under a covenant not to
compete to extend the payment date to 1997. In consideration of the extension,
the Company committed to issue 2,500 shares of the Company's common stock and
granted an option to convert the $50,000 into the Company's common stock at
$2.50 per share. No shares have been issued under this agreement as of December
31, 1995.

Convertible Promissory Notes Issued with Stock Warrants
- -------------------------------------------------------

Under the terms of a financing agreement the Company entered into during 1993,
the Company issued convertible promissory notes with a face value of $1,348,000,
warrants to purchase 404,250 shares of common stock at an exercise price of
$0.50 per share and warrants to purchase 404,250 shares of Series B Convertible
Preferred Stock at an exercise price of $0.50 per share. The common warrants may
be exercised at any time until their expiration in December 1998. The preferred
warrants allowed for exercise until December 1998 or upon repayment or
conversion of the promissory notes. The estimated fair value of the warrants has
been recorded as discount on notes payable and is being amortized over the term
of the notes. In 1994 and 1995, 645,000 and 53,464 shares of common stock were
issued

                                     F-95
<PAGE>
 
upon exercise and surrender of warrants, respectively. All shares were issued at
a reduced exercise price under the terms of the agreement for the issuance of
Series A Preferred Stock.

In December 1993, the Company received $500,000 in cash for a $500,000
convertible promissory note and a subscription for 500,000 shares of Series C
Preferred stock valued at $0.40 per share. These proceeds have been allocated
among the note payable and the stock subscription, with the difference between
the face value and the proceeds being recorded as discount on notes payable and
amortized over the term of the note. The face value of the note was $500,000 and
bears interest at 12%.

During 1994, notes payable with a face value of $1,575,000 were converted into
2,441,358 shares of common stock including shares for interest thereon. The
Company also issued convertible promissory notes with a face value of $307,000
together with warrants to purchase 127,813 shares of common stock at an exercise
price of $2.40 per share. The common warrants expire in December 1998.

5.   REDEEMABLE CONVERTIBLE PREFERRED STOCK:
     -------------------------------------- 

The Company's articles of incorporation authorize the issuance of up to
5,000,000 shares of Preferred Stock, 2,000,000 of which have been designated
redeemable convertible preferred stock.

The Redeemable Preferred Stock has certain rights, preferences and restrictions.
Each share of Redeemable Preferred Stock is convertible into one and one-half
shares of common stock, subject to adjustment for dilution, at the option of the
holder. The Redeemable Preferred Stock automatically converts to common stock
upon the sale of common stock by the Company pursuant to an effective
registration statement under the Securities Act of 1933 at a price per share of
at least $5.25.

The Company's articles of incorporation cannot be amended to alter in an adverse
manner the designations, preferences or other rights of the Redeemable Preferred
Stock without the consent of the holders of a majority of the outstanding shares
of Redeemable Preferred Stock, voting together as a class. Similar consent is
required for a change to the Company's articles of incorporation that
establishes, authorizes or enlarges a series of any class of capital stock
ranking senior to the Redeemable Preferred Stock. The Redeemable Preferred Stock
shareholders have no additional voting rights.

At its option, the Company may redeem the then outstanding shares of Redeemable
Preferred Stock at any time after October 15, 1994 at a redemption price of
$3.50 per share plus all declared but unpaid dividends. On October 15, 2001, any
shares of Redeemable Preferred Stock remaining outstanding must be redeemed at a
redemption price of $3.50 per share plus all declared but unpaid dividends.

In the event of liquidation, the holders of the Redeemable Preferred Stock are
entitled to receive, prior to and in preference to any distribution to the
holders of common stock, the amount of $3.50 plus any accrued but unpaid
dividends. After such distribution, holders of the Redeemable Preferred Stock
are entitled to no further participation in the remaining assets of the Company.

The holders of Preferred stock are entitled to receive, when and as declared by
the Board of Directors, cash dividends per share in the amounts determined by
the Board of Directors.

                                     F-96
<PAGE>
 
The Redeemable Preferred Stock is on parity with all other preferred stock.

6.   CONVERTIBLE PREFERRED STOCK
     ---------------------------

Series A Preferred Stock
- ------------------------

In October 1994, the Company entered into an agreement whereby the Company sold
35,000 shares of Series A Preferred Stock to an investor at a price of $100 per
share (par value $0.01 per share). Also pursuant to the agreement, approximately
$1,575,000 of the Company's 12% Convertible Promissory Notes was converted into
Common Stock. The agreement also limits the number of preferred stock purchase
warrants which may be issued.

The agreement also required a reduction in the number of directors. In
conjunction with this reduction, the Company issued certain directors 270,000
shares of common stock for no consideration (see Note 7). The fair value of
these shares has been recorded as issuance costs of the Series A Preferred
Stock.

Concurrent with the closing, a director and shareholder agreed to purchase 5,000
shares of the Series A Preferred Stock for an aggregate consideration of
$500,000. Through December 31, 1995, the Company had received payments totaling
$300,000 pursuant to which 3,000 shares were issued. The remaining $200,000 was
received in 1996, at which time the remaining subscribed shares were issued. The
Series A Preferred Stock has certain rights, preferences and restrictions.

The Series A Preferred Stock is on a parity with all other "Convertible
Preferred Stock" and "Series B Convertible Preferred Stock," when issued. The
Series A is senior to Common Stock.

Holders of the Series A Preferred Stock are entitled to receive, when and if
declared by the Board of Directors, cumulative dividends at the annual rate of
7.5% times the stated value ($100 per share); provided, however, that dividends
must also have been declared on the "Convertible Preferred Stock" and the
"Series B Convertible Preferred Stock."

In the event of any voluntary or involuntary liquidation or dissolution, the
holders of Series A Preferred Stock are entitled to an amount equal to $125 per
share, plus accrued and unpaid dividends.

Series A shareholders may convert such shares into shares of Common Stock at a
rate equal to the stated value plus accrued and unpaid dividends, divided by the
conversion price. The initial conversion price is $2.50 per share. Shares of
Series A will be converted into shares of Common Stock at the conversion rate
should the Company file a registration statement for a common share offering
with aggregate gross proceeds of at least $7,500,000.

Series A holders and the Common Stock class will vote together as a class on
transactions and each share of Series A is entitled to the number of votes per
share equal to the number of shares of Common Stock issuable upon conversion of
the Series A. However, as long as at least 10,000 shares of Series A are issued
and outstanding, the Board of Directors shall not exceed five members and the
holders of Series A are entitled (voting as a class) to elect in person or by
proxy one director. If less than 10,000 shares are issued and outstanding, the
term of the director elected by the Series A shall end and the remaining
directors shall fill the vacancy. In addition, there are voting rights to
prevent the establishment of new capital stock classes and enlargement of
existing classes.

                                     F-97
<PAGE>
 
Series B Preferred Stock Warrants
- ---------------------------------

During 1994 and 1995, outstanding warrants for Series B Preferred Stock were
surrendered to the Company for the direct issuance of shares of common stock
into which the Series B Preferred Stock were convertible. As of December 31,
1995, warrants to purchase 55,018 shares of Series B Preferred Stock at an
exercise price of $0.50 were outstanding.

7.   COMMON STOCK:
     ------------ 

During 1994, the Company issued 25,000 shares of common stock as part of the
consideration for acquisition of a clinic and 357,903 shares of common stock for
repayment of promissory note interest.

During 1993 and 1994 the Company issued certain equity securities to investors.
In early 1996 the Company determined that such issuances were technically
invalid due to the lack of filing legal documents in some states on a timely
basis. Effective 1994, the Company's board of directors has resolved to issue
537,500 shares of common stock in exchange for the surrender of one class of
such equity securities and to issue 322,500 shares of common stock in exchange
for the surrender of the other class of such equity securities. Such shares of
common stock represent the number of shares into which the invalidly issued
securities were originally converted in 1994.

Common Stock Warrants
- ---------------------

In addition to the common stock warrants discussed in Note 4, the Company, as of
December 31, 1995, has warrants outstanding to purchase 108,544 common shares at
exercise prices ranging from $0.50 to $2.66 per share. These warrants are
exercisable at the option of the holder and expire on December 31, 1998. A
nominal value was assigned to the warrants.

Common Stock Options
- --------------------

In July 1991, the Company granted an officer and director options to purchase
162,000 shares of the Company's common stock at a price of $0.50 per share. The
options, which are currently exercisable, expire in July 2001.

In 1992 and 1993, the Board of Directors authorized the grant of options to
officers of the Company to purchase 197,500 shares of common stock at a price of
$2.33 per share. The options, which are currently exercisable, expire in
December 2002.

In January 1992, the Board of Directors adopted a resolution which provides for
the grant of common stock options to directors who are not employees of the
Company (the "Outside Directors"). Under the resolution, each of the Outside
Directors received options to purchase 54,000 shares of Common Stock at an
exercise price per share of $1.67. Such options vest ratably over a four year
period. In 1994, certain directors were required to resign, pursuant to the
Stock Purchase Agreement for the issuance of Series A Preferred Stock. In
consideration for the reconstitution of the Board of Directors, the Outside
Directors' options became fully vested and the exercise price was reduced to
zero. The fair value of the options were recorded as an issuance cost of the
Series A Preferred Stock.

                                     F-98
<PAGE>
 
In 1994, the Board of Directors granted options to purchase 141,500 shares of
Common Stock at a price of $2.75 per share to employees. These options, which
are currently exercisable, expire in 2004 .

A summary of the stock option activity follows:

<TABLE>
<CAPTION>
                                               Number                 Price   
                                             of Shares              Per Share 
                                             ----------             --------- 
         <S>                                 <C>                    <C>       
         Balance at December 31, 1992          421,500            $0.50 - $2.33
                                                                              
           Granted                             208,000                    $2.33 
           Exercised                               -                    -   
           Canceled                                -                    -   
                                              --------            
         Balance at December 31 ,1993          629,500            $0.50 - $2.33 
                                                                              
           Granted                             141,500                    $2.75 
           Exercised                          (270,000)                 -     
           Canceled                                -                    -     
                                              --------                        
         Balance at December 31, 1994          501,000            $0.50 - $2.75 
                                                                        
                                                                              
           Granted                               2,500                    $2.75 
           Exercised                               -                    - 
           Canceled                                -                    - 
                                              --------                        
         Balance at December 31, 1995          503,500            $0.50 - $2.75 
                                              ========                         
                                                                              
         Exercisable at December 31, 1995      503,500            $0.50 - $2.75
                                              ========                   
</TABLE>

8.   INCOME TAXES:
     ------------ 

No provision for income taxes has been recorded as the Company has incurred
losses since its inception.

At December 31, 1995, the Company has federal and state net operating loss
("NOL") carryforwards of approximately $6.5 million and $3.2 million,
respectively. These NOL carryforwards expire at various dates through 2010 and
2000, respectively.

Deferred tax assets of approximately $2.6 million and $1.9 million, resulting
primarily from NOL carryforwards, were fully offset by a valuation allowances as
of December 31, 1995 and 1994 due to the uncertainty of realization.

Under the Tax Reform Act of 1986, the utilization of NOL carryforwards to reduce
taxable income will be restricted in certain circumstances. Events which cause
such a limitation include, but are not limited to, a cumulative ownership change
of more than 50% over a three year period. Management believes that the issuance
of Convertible Preferred Stock during 1994 caused such a change in ownership
and, accordingly, utilization of NOL carryforwards may be limited in future
years.

                                     F-99
<PAGE>

9.   COMMITMENTS AND CONTINGENCIES:
     ----------------------------- 

The Company leases clinic and office facilities under noncancelable operating
lease agreements. The leases require the Company to pay property taxes,
maintenance and certain insurance expenses. Total rent expense under the
operating leases was $944,000, $584,000 and $436,000 for the years ended
December 31, 1995, 1994 and 1993, respectively.

Minimum future lease payments under non-cancelable operating and capital leases
are as follows (in thousands):

<TABLE>
<CAPTION>
         Year Ending                         Operating         Capital    
         December 31,                         Leases            Leases    
         ------------                        ---------         --------   
         <S>                                 <C>               <C>        
             1996                              $   859            $ 24    
             1997                                  817              24    
             1998                                  824              24    
             1999                                  762              21    
             2000                                  753               4    
             Thereafter                          6,430               -    
                                               -------             ---    
                                               $10,445              97    
                                               =======             ---    
         Less- Amounts representing                                       
         interest                                                  (28)    
                                                                          
                                                                  ----    
         Present value of net minimum                                     
         lease payments                                           $ 69     
                                                                          
                                                                  ====   
</TABLE>                                  
                                          
The cost of equipment under capital lease included in the balance sheet as
property and equipment as of December 31, 1995 was approximately $78,000.
Accumulated amortization of the leased equipment as of December 31, 1995 was
approximately $13,000.

In February 1996, the Company settled a wrongful termination claim in which it
was the defendant. The settlement amount of approximately $200,000 approximated
the accrued amount as of December 31, 1995 related to this matter.

Various claims arising in the course of business, seeking monetary damages, are
pending. The amount of liability, if any, from such claims cannot be determined
with certainty; however, in the opinion of management, the ultimate outcome of
such claims will not have a material adverse effect on the Company's financial
position, results of operations or cash flows.

                                     F-100
<PAGE>
 
10.  DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS:
     ----------------------------------------------------- 

The following disclosure of the estimated fair value of the Company's debt is
made in accordance with the requirements of SFAS No. 107, "Disclosures about
Fair Value of Financial Instruments." The estimated fair value amounts have been
determined by the Company using available market information and appropriate
valuation methodologies. Considerable judgment is required to develop the
estimates of fair value, thus the estimates provided therein are not necessarily
indicative of the amounts that could be realized in a current market exchange.

<TABLE>
<CAPTION>
                                                   December 31, 1995   
                                                   -----------------   
                                                   Carrying   Fair     
                                                    Amount    Value    
                                                   --------  -------   
          <S>                                      <C>       <C>       
          Fixed-rate long-term debt                 $10,723  $10,427   
          Variable rate long-term debt                  133      139   
                                                    -------   ------   
                                                    $10,856  $10,566   
                                                    =======   ======    
</TABLE>

The estimated fair value of the Company's fixed-rate long-term debt is based on
prime plus an estimated spread at December 31, 1995 for similar securities with
similar remaining maturities.

11.  SUBSEQUENT EVENTS:
     ----------------- 

In February, 1996 the Company entered into a merger agreement with Veterinary
Centers of America, Inc. (VCA). Under terms of the agreement, which is intended
to qualify for pooling-of-interests accounting, stockholders and rights holders,
as defined, are to receive shares with a market value on March 20, 1996 of
approximately $25 million.

                                     F-101
<PAGE>
 
                   REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
                   ----------------------------------------


To the Board of Directors and Stockholders of 
  Veterinary Centers of America, Inc.:

We have audited the accompanying balance sheet of SOUTHWEST VETERINARY
DIAGNOSTICS, INC. (an Arizona corporation) as of December 31, 1995, and the
related statements of operations, stockholder's equity and cash flows for the
year then ended. These financial statements are the responsibility of the
Company's management. Our responsibility is to express an opinion on these
financial statements based on our audit.

We conducted our audit in accordance with generally accepted auditing standards.
Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of Southwest Veterinary
Diagnostics, Inc. as of December 31, 1995, and the results of its operations and
its cash flows for the year then ended in conformity with generally accepted
accounting principles.

                                       /s/ ARTHUR ANDERSEN LLP
                                       -----------------------
                                           ARTHUR ANDERSEN LLP

Los Angeles, California
March 22, 1996

                                     F-102
<PAGE>
 
                    SOUTHWEST VETERINARY DIAGNOSITICS, INC.
                    ---------------------------------------

                      BALANCE SHEET - DECEMBER 31, 1995
                      ---------------------------------

                                     ASSETS
                                     ------


<TABLE> 
<S>                                                     <C>
CURRENT ASSETS:
Cash                                                    $  293,800
Accounts receivable, net of allowance
  for doubtful accounts of $260,000                        998,600
Supplies inventory                                         109,400
Prepaid expenses                                            29,900
Note receivable                                             75,000
                                                        ----------
        Total current assets                             1,506,700

PROPERTY, PLANT AND EQUIPMENT, net                       1,393,000

OTHER ASSETS                                                 8,400
                                                        ----------
                                                        $2,908,100
                                                        ==========
</TABLE> 
   
   The accompanying notes are an integral part of this balance sheet.

                                     F-103
<PAGE>
 
                    SOUTHWEST VETERINARY DIAGNOSTICS, INC.
                    --------------------------------------

                       BALANCE SHEET - DECEMBER 31, 1995
                       ---------------------------------

                     LIABILITIES AND STOCKHOLDERS' EQUITY
                     ------------------------------------ 

<TABLE> 
<S>                                                             <C>  
CURRENT LIABILITIES:
  Accounts payable                                              $  108,500
  Current portion of long-term debt                                146,400
  Current portion of bank line of credit                            26,700
  Accrued payroll                                                  186,500
  Accrued expenses                                                  27,600
                                                                ----------
      Total current liabilities                                    495,700

LONG-TERM DEBT, less current portion                               386,800

BANK LINE OF CREDIT, less current portion                          173,300

COMMITMENTS AND CONTINGENCIES

STOCKHOLDERS' EQUITY:
  Common stock, $1 par value:
    Authorized--100,000 shares
    Issued and outstanding--15,000 shares                           15,000
  Accumulated earnings                                           1,837,300
                                                                ----------
      Total stockholders' equity                                 1,852,300
                                                                ----------
                                                                $2,908,100
                                                                ==========
</TABLE> 

      The accompanying notes are an integral part of this balance sheet.

                                   F-104    
<PAGE>
 
                    SOUTHWEST VETERINARY DIAGNOSTICS, INC.
                    --------------------------------------   
                              
                            STATEMENT OF OPERATIONS
                            -----------------------

                     FOR THE YEAR ENDED DECEMBER 31, 1995
                     ------------------------------------ 

<TABLE> 
<S>                                                         <C> 
REVENUES                                                    $10,604,800
DIRECT COST OF SERVICES                                       6,094,300
                                                            -----------
GROSS PROFIT                                                  4,510,500

OPERATING EXPENSES:
  Selling, general and administrative expenses                3,363,700
  Officers' salaries                                            500,800
  Depreciation and amortization                                 332,000
                                                            -----------
OPERATING INCOME                                                314,000

OTHER INCOME (EXPENSE):
  Other income                                                  175,300
  Interest expense                                              (88,400)
                                                            -----------
NET INCOME                                                  $   400,900
                                                            ===========
</TABLE> 

   The accompanying notes are an integral part of this financial statement.

                                     F-105
<PAGE>
 
                    SOUTHWEST VETERINARY DIAGNOSTICS, INC.
                    -------------------------------------- 

                       STATEMENT OF STOCKHOLDERS' EQUITY
                       ---------------------------------   

                     FOR THE YEAR ENDED DECEMBER 31, 1995
                     ------------------------------------

<TABLE> 
<CAPTION>
                                          Common Stock
                                          ------------        Accumulated
                                        Shares     Amount       Earnings
                                        ------     ------     -----------
<S>                                     <C>        <C>         <C> 
BALANCE, December 31, 1994              15,000     $15,000     $1,465,400   

  Net income                               --          --         400,900
  Cash distributions to stockholders       --          --         (29,000)
                                        ------     -------     ----------
BALANCE, December 31, 1995              15,000     $15,000     $1,837,300
                                        ======     =======     ==========
</TABLE> 

   The accompanying notes are an integral part of this financial statement.
                                     
                                     F-106
<PAGE>
 
                    SOUTHWEST VETERINARY DIAGNOSTICS, INC.
                    --------------------------------------

                            STATEMENT OF CASH FLOWS
                            -----------------------

                     FOR THE YEAR ENDED DECEMBER 31, 1995
                     ------------------------------------

<TABLE> 

<S>                                                                 <C> 
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net income                                                        $ 400,900
  Adjustment to reconcile net income to net cash
    provided by operating activities:
      Depreciation and amortization                                   332,000
      Provision for doubtful accounts                                 221,000
  Changes in operating assets and liabilities:
      Increase in accounts receivable                                 (85,400)
      Decrease in supplies inventory                                    9,300
      Decrease in prepaid expenses                                      4,700
      Decrease in note receivable                                     100,000
      Decrease in other assets                                         92,200
      Decrease in accounts payable                                    (13,800)
      Increase in accrued payroll                                      41,600
      Increase in accrued expenses                                     13,300
      Decrease in deferred revenue                                   (175,000)
                                                                    ---------
        Net cash provided by operating activities                     940,800
                                                                    ---------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Purchase of property, plant and equipment                          (342,300)
  Proceeds from disposal of fixed assets                                4,700
                                                                    ---------
        Net cash used in investing activities                        (337,600)
                                                                    ---------
CASH FLOWS FROM FINANCIAL ACTIVITIES:
  Principal payments on long-term debt and bank line of credit       (313,600)
  Proceeds of long-term debt and bank line of credit                   31,800
  Principal payments on capital leases                                (49,700)
  Cash distributions to stockholders                                  (29,000)
                                                                    ---------
        Net cash used in financing activities                        (360,500)
                                                                    ---------
NET INCREASE IN CASH                                                  242,700

CASH, beginning of year                                                51,100
                                                                    ---------
CASH, end of year                                                   $ 293,800
                                                                    =========
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:

  Interest paid                                                     $  88,400
                                                                    =========
</TABLE> 

   The accompanying notes are an integral part of this financial statement.

                                     F-107
<PAGE>
 
                    SOUTHWEST VETERINARY DIAGNOSTICS, INC.
                    --------------------------------------

                         NOTES TO FINANCIAL STATEMENT
                         ----------------------------

                               DECEMBER 31, 1995
                               -----------------


1. THE COMPANY
   -----------

Southwest Veterinary Diagnostics, Inc. ("the Company") was incorporated in 
Arizona in January 1, 1978.  The Company operates veterinary medical 
laboratories in Phoenix, Arizona; Kansas City, Missouri; and Dallas, Texas.  
These operating facilities serve veterinary clinics throughout 15 states.  Of 
the customer base, 55 percent is attributable to California.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
   ------------------------------------------

     a. Supplies Inventory
        ------------------

     Supplies inventory consists of laboratory reagents and supplies used for
     test analysis and is stated at the lower of cost or market value using the
     first-in, first-out method.

     b. Property and Equipment
        ----------------------

     Property and equipment is stated at cost. Depreciation is computed
     principally using the straight-line method over the estimated useful lives
     of the assets which range from 5 to 40 years.

     Expenditures for additions and improvements are capitalized, and costs of
     normal repairs and maintenance are expensed as incurred. The cost and
     accumulated depreciation of property and equipment retired or otherwise
     disposed of are eliminated and any resulting gain or loss is recognized at
     the time of disposal.

     c. Financial Instruments
        ---------------------

     The fair value of the Company's financial instruments, including cash and 
     the installment note receivable, approximate their carrying value.

                                     F-108
<PAGE>
 
3. PROPERTY, PLANT AND EQUIPMENT
   -----------------------------

Property, plant and equipment at December 31, 1995 consist of the following:

<TABLE> 
               <S>                                     <C> 
               Land                                    $  325,200
               Furniture and equipment                  1,879,200
               Building improvements                      209,500
               Transportation equipment                   149,200
               Capitalized equipment leases               856,300
                                                       ----------
                                                        3,419,400
               Less--Accumulated depreciation
                 and amortization                      (2,026,400)
                                                       ----------
               Property, plant and equipment,
                 net                                   $1,393,000
                                                       ==========
</TABLE> 

Accumulated depreciation on equipment held under capital leases amounted to 
$319,626 at December 31, 1995.

4. BANK LINES OF CREDIT
   --------------------

The Company has a revolving line of credit providing for borrowings up to
$600,000, interest payable monthly at prime, plus 1.5 percent. Unpaid principal
and interest are due May, 1996. There was no balance outstanding on the line as
of December 31, 1995. The line of credit is collateralized by accounts
receivable and inventory and is guaranteed by stockholders. The note contains
restrictive covenants limiting fixed asset purchases and requiring that certain
financial ratios be maintained. At December 31, 1995, all covenants have been
met. The interest rate in effect at December 31, 1995 was 10 percent.

The Company has a line of credit providing for borrowings up to $400,000, due in
monthly payments at 1.5 percent over prime. Borrowings on the line totaled 
$200,000 at December 31, 1995. The remaining principal and interest are due 
April, 2001. The line of credit is collateralized by laboratory equipment and is
guaranteed by stockholders. The note contains restrictive covenants limiting 
fixed asset purchases and requiring that certain financial ratios be maintained.
At December 31, 1995, the Company was in compliance with these covenants. The 
interest rate in effect at December 31, 1995 was 10 percent.
              
                                     F-109
<PAGE>

5. LONG TERM DEBT
   --------------

Long-term debt consists of the following:

     Note payable, due in monthly installments of approximately
      $10,900 interest at bank prime rate plus 1.5 percent
      (currently at 10 percent), collateralized by equipment,
      receivables and a second deed of trust on a building owned
      by a related partnership (see Note 9) and guaranteed by
      the stockholders of the Company, due through
      September, 1999.                                              $487,500


     Note payable, due in monthly installments of approximately
      $1,000 including interest at 10 percent, maturing
      December, 1998, collateralized by a vehicle.                    31,800 

     Capital lease obligations, due through 1998                      13,900
                                                                    --------
                                                                     533,200
     Less--Current portion                                          (146,400)
                                                                    --------
                                                                    $386,800
                                                                    ========

The lending agreements contain various restrictive covenants limiting the amount
of fixed asset purchases and the requirement to maintain specified financial 
ratios.  As of December 31, 1995 the Company was not in compliance with certain 
restrictive covenants.  The Company obtained a waiver from the bank related to 
these covenants.

At December 31, 1995, long-term debt maturing in the next five years consists
of the following:

                   1996                        $146,400
                   1997                         145,200
                   1998                         144,100
                   1999                          97,500
                   Thereafter                         -
                                               --------
                                                533,200
                                               ========

6. EMPLOYEE BENEFIT PLANS
   ----------------------

Effective October 1, 1991, the Company adopted a qualified 401(k) employee 
savings and profit sharing plan for the benefit of substantially all employees. 
Under the plan, employees can defer a portion of their compensation and 
contribute it to the plan.  Matching contributions are made at the sole 
discretion of the Board of Directors.  The plan's trustees are officers of the 
Company.  The Company's policy is to fund profit sharing costs as incurred.  
Profit sharing expense was $4,800 for the year ended December 31, 1995.

                                     F-110
                                                     
<PAGE>

7. COMMITMENTS AND CONTINGENCIES
   -----------------------------

Leasing Arrangements
- --------------------

The Company entered into a lease in September, 1991, for Kansas City, Missouri
operating facilities. This lease requires future minimum rentals of
approximately $1,460 a month through March, 1996. Rent on this facility was
approximately $19,000 for the year ended December 31, 1995.

The Company entered into a lease in March, 1993 for Dallas, Texas operating
facilities. This lease requires future minimum rentals of approximately $1,700
a month through March, 1998. Rent on this facility was approximately $21,000 for
the year ended December 31, 1995.

The Company is obligated under operating leases for various equipment and 
automobiles. These leases require monthly payments ranging from approximately 
$1,000 to $1,800, expiring November, 1996 through October, 1998. Payments under 
these leases were approximately $44,000 for the year ended December 31, 1995.

The Company leases certain equipment under capital leases with noncancellable 
terms through 1998.

Future minimum payments at December 31, 1995 are as follows:

                                      Capital         Operating
                                       Leases           Leases
                                      --------        ---------
         1996                         $ 8,100         $ 88,000
         1997                           5,000           76,000
         1998                           2,500           42,000
         1999                             -               -
         2000                             -               -
                                      -------         --------
                                       15,600         $206,000
Less-Amount representing interest      (1,700)        ========
                                      -------
Present value of net minimum
  lease payments                      $13,900
                                      =======

PENDING OR THREATENED LITIGATION
- --------------------------------
The Company from time to time is a party to various legal proceedings which are 
incidental to its business. In the opinion of management, the ultimate 
resolution of these proceedings will not have a material adverse effect on the 
Company's financial position or results of operations.
    
                                     F-111








<PAGE>
8. INCOME TAXES
   ------------

The Company is taxed as a Subchapter-S corporation under Section 1362 of the
Internal Revenue Code and related state statutes. Under this provision, all
income is taxed directly to the stockholders of the Company.

9. RELATED PARTY TRANSACTIONS
   --------------------------

The Company rents, on a month-to-month basis, certain operating facilities and 
equipment from a partnership in which the officers of the Company are partners. 
The amount of rent is subject to change based upon fluctuations in the prime 
interest rate and changes in operating expenses. Rent expense pursuant to this 
arrangement was approximately $65,000 for the year ended December 31, 1995.

In December, 1994 the Company entered into a joint venture with Veterinary 
Diagnostics Services, Inc. (VDS) to operate a Portland laboratory. The Company 
obtained a 50 percent interest as one of two general partners in the 
joint venture for nominal consideration. During 1995 the Company sold a customer
list valued at $175,000 to the joint venture. As of December 31, 1995 the 
balance due on the related note receivable was $75,000.

In August 1995, the Company entered into a six month consulting agreement with 
VDS providing for payment of $10,000 per month. Additionally, in August 1995, 
the Company sold its 50 percent interest in the joint venture to VDS for
nominal consideration.

10. SUBSEQUENT EVENT
    ---------------- 
On March 4, 1996 Veterinary Centers of America, Inc. ("VCA"), acquired
substantially all of the assets and assumed certain of the liabilities of the
Company. Under the terms of the acquisition agreement, liabilities not assumed
by VCA were assumed by the former stockholders of the Company.

                                     F-112
<PAGE>
 
                                                                      APPENDIX A


                      AGREEMENT AND PLAN OF REORGANIZATION

                                  BY AND AMONG

                      VETERINARY CENTERS OF AMERICA, INC.

                           GOLDEN MERGER CORPORATION

                                      AND

                             THE PET PRACTICE, INC.

                                 MARCH 21, 1996
<PAGE>
 
                               TABLE OF CONTENTS
                               -----------------

<TABLE>
<CAPTION>
                                                            PAGE
                                                            ----
<S>                                                          <C>
AGREEMENT AND PLAN OF REORGANIZATION........................   2
                                                            
RECITALS....................................................   2
                                                            
AGREEMENT...................................................   2
                                                            
1.   Definitions............................................   2
                                                            
2.   The Merger.............................................   7
     2.1.   Execution, Filing, Effective Time...............   7
     2.2.   Constituent and Surviving Corporations..........   7
     2.3.   Certificate of Incorporation and Bylaws.........   8
     2.4.   Board of Directors and Officers.................   8
     2.5.   Conversion of the Company Common Stock..........   8
     2.6.   Company Purchase Rights.........................  10
     2.7.   Closing of Transfer Books.......................  11
     2.8.   Related Agreement...............................  11
                                                            
3.   Closing Date...........................................  11
                                                            
4.   Representations and Warranties of the Company..........  12
     4.1.   Organization and Standing; Articles and By-     
            Laws............................................  12
     4.2.   Authorization...................................  12
     4.3.   No Consents.....................................  13
     4.4.   Capital Stock...................................  13
     4.5.   Subsidiaries....................................  14
     4.6.   SEC Reports and Financial Statement.............  14
     4.7.   Absence of Certain Changes or Events............  15
     4.8.   Litigation......................................  16
     4.9.   Tax Returns.....................................  16
     4.10.  Properties, Encumbrances........................  17
     4.11.  Personal Property...............................  18
     4.12.  Employee Benefit Plans..........................  18
     4.13.  Certain Agreements..............................  18
     4.14.  Compliance With Applicable Law..................  19
     4.15.  Environmental Compliance Matters................  19
     4.16.  No Brokers......................................  20
     4.17.  Registration Statement; Proxy Statement/Pros-   
            pectus..........................................  20
     4.18.  Information.....................................  21
     4.19.  Tax Free Merger.................................  21
     4.20.  Related Party Indebtedness and Obligations......  21
     4.21.  No Dissenters Rights............................  21
     4.22.  Stockholder Intention to Sell...................  21
                                                            
5.   Representations and Warranties of the Parent...........  21
     5.1.   Organization and Standing; Articles and By-     
            Laws............................................  22
     5.2.   Authorization...................................  22
     5.3.   No Consents.....................................  22
</TABLE>                                                    
                                                            
                                       i                    
<PAGE>
 
<TABLE>                                                     
<S>                                                          <C>
     5.4.   Capitalization..................................  23
     5.5.   Authorization of Parent Common Stock............  24
     5.6.   SEC Reports.....................................  24
     5.7.   Absence of Certain Changes or Events............  25
     5.8.   Litigation......................................  25
     5.9.   Compliance With Applicable Law..................  25
     5.10.  No Brokers......................................  26
     5.11.  Registration Statement; Proxy                   
            Statement/Prospectus............................  26
     5.12.  Information.....................................  26
     5.13.  Tax Free Merger.................................  26
                                                            
6.   Pre-Merger Covenants of Parent and the Company.........  27
     6.1.   Conduct of Business by the Company..............  27
     6.2.   Conduct of Business by Parent...................  29
     6.3.   Inspection of Records...........................  30
     6.4.   Stockholder Approval............................  30
     6.5.   Registration Statement; Proxy Statement.........  30
     6.6.   Agreements by Affiliated Stockholders of the    
            Company.........................................  31
     6.7.   Expenses........................................  31
     6.8.   Reorganization..................................  31
     6.9.   Filings; Other Action...........................  31
     6.10.  Publicity.......................................  32
     6.11.  Acquisition Proposals...........................  32
     6.12.  Indemnification.................................  33
                                                            
7.   Conditions to Each Party's Obligation to Effect the    
     Merger.................................................  34
     7.1.   Stockholder Approval............................  34
     7.2.   Hart Scott Act..................................  34
     7.3.   No Legal Action.................................  34
     7.4.   Registration Statement Effective................  34
     7.5.   Listing of Additional Shares on NMS.............  34
     7.6.   Tax Opinion.....................................  34
     7.7.   Trading Activity................................  34
                                                            
8.   Additional Conditions to Obligations of the Parent.....  35
     8.1.   Representations, Covenants, Certificate.........  35
     8.2.   Permits and Approvals...........................  35
     8.3.   No Adverse Change...............................  35
     8.4.   Certain Legal Matters...........................  35
     8.5.   Certificate.....................................  36
     8.6.   Opinion of Counsel for the Company..............  36
     8.7.   Comfort Letter..................................  36
     8.8.   Rule 145 Affiliates.............................  36
     8.9.   Agreements with Certain Stockholders............  36
                                                            
9.   Additional Conditions to the Obligations of the        
     Company................................................  37
     9.1.   Representations, Covenants, Certificate.........  37
</TABLE>                                                    
                                                            
                                      ii                    
<PAGE>
 
<TABLE>                                                     
<S>                                                          <C>
     9.2.   Certain Legal Matters...........................  37
     9.3.   Certificate.....................................  37
     9.4.   Opinion of Counsel for Parent and Sub...........  37
                                                            
10.  Termination............................................  37
     10.1.  Termination.....................................  37
     10.2.  Effect of Termination...........................  38
                                                            
11.  Miscellaneous Provisions...............................  39
     11.1.  Notices.........................................  39
     11.2.  Severability....................................  40
     11.3.  Exhibits and Schedules..........................  40
     11.4.  Governing Law...................................  40
     11.5.  No Adverse Construction.........................  40
     11.6.  Counterparts....................................  40
     11.7.  Costs and Attorneys' Fees.......................  40
     11.8.  Successors and Assigns..........................  40
     11.9.  Amendment.......................................  40
     11.10. Waiver..........................................  41
     11.11. Entire Agreement................................  41
     11.12. Best Efforts....................................  41
     11.13. Survival of Representations and Warranties......  41
</TABLE>

                                      iii
<PAGE>
 
                      AGREEMENT AND PLAN OF REORGANIZATION


     This Agreement and Plan of Reorganization (the "Agreement") is made and
entered into as of March 21, 1996, by and among THE PET PRACTICE, INC., a
Delaware corporation (the "Company"), GOLDEN MERGER CORPORATION, a Delaware
corporation ("Sub"), and VETERINARY CENTERS OF AMERICA, INC., a Delaware
corporation ("Parent"), with respect to the following:


                                R E C I T A L S
                                ---------------

     A.   The Board of Directors of Parent, the Company and Sub each has
determined that a business combination among Parent, the Company and Sub is in
the best interest of their respective companies and shareholders and presents an
opportunity for their respective companies to achieve long-term strategic and
financial benefits, and accordingly the parties have agreed to effect the merger
provided for herein (the "Merger") upon the terms and subject to the conditions
set forth herein.

     B.   For federal income tax purposes, it is intended that the Merger shall
qualify as a tax-free reorganization within the meaning of Section 368(a) of the
Internal Revenue Code of 1986, as amended (the "Code"), and for financial
accounting purposes shall be accounted for as a purchase.

     C.   Parent, Sub and the Company desire to make certain representations,
warranties and agreements in connection with the Merger.

     D.   Parent and the Company jointly desire that Parent acquire all of the
issued and outstanding stock of the Company.

     E.   The parties have determined that the most expeditious manner of
accomplishing such acquisition would be the merger of the Company with and into
Sub (the "Merger").

     F.   The parties hereto desire to adopt a Plan of Reorganization within the
meaning of Section 368(a) of the Code.

                               A G R E E M E N T
                               -----------------

     NOW, THEREFORE, in consideration of the foregoing and of the
representations, warranties, covenants and agreements contained herein, the
parties to this Agreement hereby agree as follows:

     1.   DEFINITIONS.  As used in this Agreement, terms defined in the preamble
          -----------                                                           
and recitals hereto shall have the respective meanings specified therein and the
following terms shall have the meanings set forth below:

                                       2
<PAGE>
 
               (a) "AFFILIATE" means, when used with reference to a specified
Person, any Person that directly or indirectly through one or more
intermediaries controls or is controlled by, or is under common control with,
the specified Person.

               (b) "AGREEMENT" shall mean this Agreement and Plan of
Reorganization.

               (c) "AVERAGE PRICE" shall mean the average of the closing prices
of the Parent Common Stock on the NMS (as reported by the Wall Street Journal,
or if not so reported as reported by another authoritative source) over the 20
trading day period ending on (and including) the third trading day immediately
preceding the date of the meeting of the Stockholders contemplated in Section
6.4. For purposes of the preceding sentence, a "trading day" means a day on
which trading generally takes place on the NMS and on which trading in shares of
Parent Common Stock occurred.

               (d) "CODE" shall mean the Internal Revenue Code of 1986, as
amended.

               (e) "COMPANY" shall mean The Pet Practice, Inc., a Delaware
corporation.

               (f) "COMPANY COMMON STOCK" shall mean the Common Stock, par
value $0.01 per share, of the Company.

               (g) "COMPANY PURCHASE RIGHTS" shall mean each outstanding option,
purchase right, subscription or other right or agreement or commitment of any
character relating to the issuance of shares of Company Common Stock (including,
without limitation, options or rights that may be issued and outstanding under
the Company Stock Option Plan or pursuant to any contingent payment provision
contained in any agreement pursuant to which the Company acquired any of its
Veterinary Hospitals).

               (h) "COMPANY SECURITIES" shall mean the Company Common Stock
and the Company Purchase Rights.

               (i) "CONTROL" (including as used in the terms "controlling,"
"controlled by" and "under common control with") of a Person means the
possession, direct or indirect, of the power to direct or cause the direction of
the management and policies of a Person, whether through the ownership of voting
securities, by contract, or otherwise.

               (j) "DELAWARE LAW" shall mean the General Corporation Law of the
State of Delaware.

               (k) "EXCHANGE ACT" shall mean the Securities Exchange Act of
1934, as amended.

                                       3
<PAGE>
 
               (l) "EXCHANGE FACTOR" shall be determined by reference to the
following formula: (i) if the Average Price is between $25.00 and $30.00
(inclusive), the Exchange Factor shall be determined by dividing $10.00 by the
Average Price, (ii) if the Average Price is between $24.00 and $19.00
(inclusive), the Exchange Factor shall be 0.3950 at $24.00 and increased 0.005
for each whole dollar by which the Average Price is less than $24.00, (iii) if
the Average Price is $18.50 or less, the Exchange Factor shall be 0.4225, (iv)
if the Average Price is equal to or greater than $31.00 and less than $49.00 the
Exchange Factor shall be 0.3350 at $31.00 and reduced 0.005 for each whole
dollar by which the Average Price is greater than $31.00, (v) if the Average
Price is within the ranges described in clause (ii) and (iv) above, but the
Average Price is not a whole dollar, then the Exchange Factor shall be
determined as that which would have been computed at the nearest whole dollar
increased or decreased (as applicable) by an amount equal to 0.005 multiplied by
a fraction, the numerator of which shall be the difference between the Average
Price and such nearest whole dollar, and the denominator of which shall be
$1.00, (vi) if the Average Price is between $19.00 and $18.50 (exclusive) the
Exchange Factor shall be .4200 increased by an amount equal to .0025 multiplied
by a fraction, the numerator of which is the difference between $19.00 and the
Average Price and the denominator of which is $.50, (vii) if the Average Price
is between $24.00 and $25.00 (exclusive) the Exchange Factor shall be 0.3950
increased by an amount equal to 0.005 multiplied by a fraction, the numerator of
which is the difference between the Average Price and $24.00 and the denominator
of which is $1.00, (viii) if the Average Price is between $30.00 and $31.00
(exclusive) the Exchange Factor shall be 0.3333 increased by an amount equal to
0.0017 multiplied by a fraction, the numerator of which is the difference
between the Average Price and $30.00 and the denominator of which is $1.00, and
(ix) if the Average Price is greater than $49.00 the Exchange Factor shall be
determined by dividing $12.005 by the Average Price. An illustration of the
application of the foregoing is attached hereto as Exhibit "A."

               (m) "GAAP" shall mean generally accepted accounting principles.

               (n) "HART SCOTT ACT" shall mean the Hart-Scott-Rodino Antitrust
Improvements Act of 1976, as amended.

               (o) "MATERIAL ADVERSE EFFECT" means when used in connection with
the Company or any of its Subsidiaries, or Parent or any of its Subsidiaries, as
the case may be, any condition, change or effect that, individually or when
taken together with all other such conditions, changes or effects that existed
or occurred prior to the date of determination of the existence or occurrence of
the Material Adverse Effect, is or is reasonably likely to be materially adverse
to the business, assets (including intangible assets), financial condition or
results of operations of the

                                       4
<PAGE>
 
Company and its Subsidiaries or Parent and its Subsidiaries, in each case taken
as a whole.

               (p) "MERGER" shall have the meaning provided in recital B to this
Agreement.

               (q) "NMS" shall mean the NASDAQ National Market System.

               (r) "PARENT" means Veterinary Centers of America, Inc., a
Delaware corporation.

               (s) "PARENT PURCHASE RIGHTS" shall mean each outstanding option,
purchase right, subscription or other right or agreement or commitment of any
character relating to the issuance of shares of Parent Common Stock (including,
without limitation, options or rights that may be issued and outstanding under
any stock option plan or pursuant to any stock guarantee provision contained in
any agreement pursuant to which Parent acquired any of its Veterinary
Hospitals).

               (t) "PARENT COMMON STOCK" shall mean the Common Stock, par value
$0.001 per share, of Parent.

               (u) "PERSON" includes an individual, partnership, limited
liability company, limited liability partnership, trust, estate, corporation,
joint venture, unincorporated association, government bureau or agency or other
entity of whatsoever kind or nature.

               (v) "PRINCIPAL STOCKHOLDERS" shall mean the holder or holders of
the Restricted Shares.

               (w) "RESTRICTED SHARES" shall mean the 3,600,000 shares of
Company Common Stock held as of the date hereof by Abbingdon Venture Partners
Limited Partnership - II.

               (x) "SECURITIES ACT" means the Securities Act of 1933, as
amended.

               (y) "SEC" means the Securities and Exchange Commission.

               (z) "STOCKHOLDERS" shall mean the stockholders of the Company.

               (aa) "SUB" shall mean Golden Merger Corporation, a Delaware
corporation.

               (ab) "SUB COMMON STOCK" shall mean the Common Stock, par value
$0.001 per share, of Sub.

               (ac) "SUBSIDIARY" of a corporation means (i) any corporation of
which equity securities possessing a majority of the

                                       5
<PAGE>
 
ordinary voting power in electing the board of directors are, at the time as of
which such determination is being made, owned by such corporation either
directly or indirectly through one or more Subsidiaries, and (ii) any Person
(other than a corporation) in which such corporation or any Subsidiary, directly
or indirectly, has more than a 10% ownership interest or over which it exercises
control.

               (ad) "VETERINARY HOSPITALS" shall mean the veterinary hospitals
and clinics owned and operated by the Company or its Subsidiaries or Parent or
its Subsidiaries, as the case may be.

<TABLE>
<CAPTION>
                                                      Section
     Defined Term                                   Where Found
     ------------                                   -----------
<S>                                                  <C>
Acquisition Proposal                                    6.11
AICPA Statement                                         8.7
Certificate of Merger                                   2.1
Closing                                                  3
Closing Date                                             3
Company Financial Statements                            4.6
Company Reports                                         4.6
Constituent Corporations                                2.2
Company Disclosure Letter                                4
Effective Time                                          2.1
ERISA Affiliate                                         4.12
Exchange Agent                                        2.5.(c)
Exchange Fund                                         2.5.(c)
Form S-4                                                6.5
Hazardous Substances, Hazardous Wastes,                
Hazardous Materials and Toxic Substances                4.15
Parent Financial Statements                             5.6
Parent Reports                                          5.6
Proxy Statement/Prospectus                              6.5
Remedies Exception                                      4.2
Rule 145 Affiliates                                     8.8
Surviving Corporation                                   2.2
Treasury Shares                                         2.5.(a)
</TABLE>

                                       6
<PAGE>
 
     2.   THE MERGER.
          ---------- 

          2.1.   EXECUTION, FILING, EFFECTIVE TIME. On the date of the Closing
of the Merger referred to in Section 3, and subject to the terms and conditions
hereinafter set forth, the Company and Sub agree to cause the Merger to be
consummated by executing, delivering and filing with the office of the Delaware
Secretary of State a Certificate of Merger (the "Certificate of Merger") in a
form approved by the Company and Parent, which approval shall not be
unreasonably withheld or delayed, and such other documents as may be required by
the provisions of the Delaware Law and as are necessary to cause the Merger to
become effective. The Merger shall become effective when such Certificate of
Merger and such other necessary documents are so filed with the Secretary of
State of the State of Delaware. The time at which the Merger becomes effective
is herein referred to as the "Effective Time."

          2.2.   CONSTITUENT AND SURVIVING CORPORATIONS. The Company and Sub
shall be the constituent corporations in the Merger (collectively, the
"Constituent Corporations"). At the Effective Time, the Company shall be merged
into Sub in accordance with the Delaware Law and Sub shall be the surviving
corporation in the Merger (in such capacity, Sub is sometimes hereinafter
referred to as the "Surviving Corporation"). At the Effective Time, the identity
and separate existence of the Company shall cease. Upon the effectiveness of the
Merger, the Surviving Corporation shall possess all of the rights, privileges,
immunities, powers, franchises and authority, whether of a public or private
nature, and be subject to all restrictions, disabilities and duties, of each of
the Constituent Corporations, and all the rights, privileges, immunities,
powers, franchises and authority of each of the Constituent Corporations, and
all assets and properties of every description, real, personal and mixed, and
every interest therein, wherever located, and all debts and other obligations
belonging or due to either of the Constituent Corporations on whatever account,
as well as stock subscriptions and all other things in action belonging or due
to each of the Constituent Corporations, shall be vested in the Surviving
Corporation, and all property rights, privileges, immunities, powers, franchises
and authority, and all and every other interest, shall be thereafter as
effectually the property of the Surviving Corporation as they were of the
Constituent Corporations, and the title to any real estate or interest therein
vested in either Constituent Corporation shall not revert or be in any way
impaired by reason of the Merger but all rights of creditors and all liens upon
any property of either of the Constituent Corporations shall be preserved
unimpaired, and the Surviving Corporation shall be liable for the debts and
other obligations of each of the Constituent Corporations, and any claims
existing or action or proceeding pending, by or against either of the
Constituent Corporations may be prosecuted to judgment with right of appeal, as
if the Merger had not taken place.

                                       7
<PAGE>
 
          2.3.   CERTIFICATE OF INCORPORATION AND BYLAWS.  The Certificate of
Incorporation and Bylaws of the Sub in effect immediately prior to the Effective
Time shall be in the Certificate of Incorporation and Bylaws of the Surviving
Corporation.

          2.4.   BOARD OF DIRECTORS AND OFFICERS.  The directors and officers of
Sub in office immediately prior to the Effective Time shall continue as the
directors and officers of the Surviving Corporation upon the effectiveness of
the Merger.

          2.5.   CONVERSION OF THE COMPANY COMMON STOCK.

                 (a) Conversion of Company Common Stock.  At the Effective
                     ----------------------------------
Time, each share of Company Common Stock issued and outstanding immediately
prior to the Effective Time (excluding any treasury shares of the Company Common
Stock then owned by the Company or any of its Subsidiaries and any shares of the
Company Common Stock then held by Parent or any of its Subsidiaries) shall, by
virtue of the Merger and without any action on the part of the Parent, Sub, the
Company or the holder thereof, be cancelled and converted into that number of
shares of fully paid and nonassessable shares of Parent Common Stock equal to
the Exchange Factor. No fractional shares of Parent Common Stock will be issued,
but in lieu thereof, any holder of shares of Company Common Stock entitled to
receive a fractional share of Parent Common Stock shall be paid cash (rounded to
the nearest whole cent) equal to the product of multiplying such fraction by the
Average Price. If more than one certificate representing shares of Company
Common Stock shall be surrendered at one time for the account of the same
stockholder of record, the number of full shares of Parent Common Stock for
which certificates shall be delivered shall be computed on the basis of the
aggregate number of shares of the Company Common Stock represented by the
certificates so surrendered. All shares of Company Common Stock held by the
Company at the Effective Time as treasury shares or held by any of the Company's
Subsidiaries or by Parent or any of its Subsidiaries (collectively, "Treasury
Shares") shall cease to exist and the certificates for such shares shall, as
promptly as practicable thereafter, be cancelled and no shares of capital stock
of Parent or Sub shall be issued in exchange therefor.

                 (b) Adjustment to the Exchange Factor.  The Exchange Factor 
                     ---------------------------------
shall be adjusted to reflect fully the effect of any stock split, reverse stock
split, stock dividend including any dividend or distribution of securities
convertible into shares of Parent Common Stock or shares of Company Common
Stock), reorganization, recapitalization or other like change in the number of
shares of Parent Common Stock or shares of Company Common Stock occurring after
the date hereof and prior to the Effective Time; provided, however, that no such
                                                 -----------------
changes to the capital stock of Parent, the Surviving Corporation or the Company
shall be effected except as permitted by this Agreement.

                                       8
<PAGE>
 
                 (c) Payment for Company Common Stock.  Parent shall authorize 
                     --------------------------------
one or more persons reasonably acceptable to the Company to act as exchange
agents (the "Exchange Agent") hereunder. As of the Effective Time, Parent shall
deposit, or cause to be deposited, with the Exchange Agent, for the benefit of
the holders of the Company Common Stock, certificates representing the number of
whole shares of Parent Common Stock and cash in lieu of fractional shares (such
cash and certificates, together with any dividends or distributions thereon,
being hereinafter referred to as the "Exchange Fund") into which the shares of
the Company Common Stock outstanding at the Effective Time are converted in
accordance with Section 2.5.(a) hereof. The Exchange Fund shall include
sufficient cash as is reasonably determined by Parent to be necessary to account
for additional fractional shares as the result of shares which are held in
depositary, nominee or book entry form.

                 (d) Delivery of New Certificates.  Promptly after the 
                     ----------------------------
Effective Time, Parent shall cause the Exchange Agent to mail to each holder of
record of a certificate or certificates representing shares of Company Common
Stock (a "Certificate" and collectively the "Certificates") (i) a letter of
transmittal which shall specify that delivery shall be effected, and risk of
loss and title to the Certificates shall pass, only upon delivery of the
Certificates to the Exchange Agent and shall be in such form and have such other
provisions as Parent may reasonably specify and (ii) instructions for use in
effecting the surrender of the Certificates in exchange for certificates
representing shares of Parent Common Stock and cash in lieu of fractional
shares. Upon surrender of a Certificate for cancellation to the Exchange Agent
together with such letter of transmittal, duly executed and completed in
accordance with the instructions thereto, the holder of such Certificate shall
be entitled to receive in exchange therefor (x) a certificate representing that
number of whole shares of Parent Common Stock and (y) a check representing the
amount of cash in lieu of fractional shares, if any, and unpaid dividends and
distributions, if any, which such holder has the right to receive in respect of
the Certificate surrendered pursuant to the provisions of this Section 2.5.(d),
after giving effect to any required withholding tax, and the Certificate so
surrendered shall forthwith be cancelled. No interest will be paid or accrued on
the cash included within the Exchange Fund, payable to holders of Certificates.
Certificates surrendered for exchange by any Person constituting a Rule 145
Affiliate shall not be exchanged until Parent has received a written agreement
from such Person as provided in Section 8.8 of this Agreement. Certificates for
Restricted Shares surrendered for exchange by a Principal Stockholder shall not
be exchanged until Parent has received a written agreement from such Person as
provided in Section 8.9 hereof. If any certificate for shares of Parent Common
Stock is to be issued in a name other than that in which a certificate for
shares of the Company Common Stock so surrendered is then registered, such
surrender shall be accompanied by payment of any applicable transfer taxes and
documents required for a valid

                                       9
<PAGE>
 
transfer. From and after the Effective Time, until so surrendered, each
Certificate theretofore representing shares of issued and outstanding Company
Common Stock shall be deemed for all corporate purposes, except as provided in
Section 2.5.(a) with respect to fractional shares and Treasury Shares, and
except as set forth below, to evidence the number of whole shares of Parent
Common Stock into which such shares of Company Common Stock shall have been
converted. Unless and until any such Certificates shall be so surrendered, the
holder of such Certificate shall not have any right to receive any cash amounts
included in the Exchange Fund. Upon surrender of a Certificate representing the
Company Common Stock, the holder of record thereof shall receive a certificate
representing the whole shares of Parent Common Stock, cash in lieu of fractional
shares to which he shall be entitled, and all dividends and other distributions
which shall have been paid or made to holders of record of Parent Common Stock
after the Effective Time with respect to such shares of Parent Common Stock,
without interest thereon. All such cash amounts unclaimed at the end of one year
from the Effective Time shall be released or repaid by the Exchange Agent to
Parent, after which the holders of the shares not receiving such payment shall
look, subject to applicable escheat or other laws, only to Parent as general
creditors for payment thereof.

                 (e) No Liability.  None of Parent, the Company, the Exchange 
                     ------------
Agent or any other person shall be liable to any former holder of shares of
Company Common Stock for any amount properly delivered to a public official
pursuant to applicable abandoned property, escheat or similar laws.

                 (f) Lost, Stolen or Destroyed Certificates.  In the event any
                     --------------------------------------                   
Certificate shall have been lost, stolen or destroyed, upon the making of an
affidavit of that fact by the person claiming such Certificate to be lost,
stolen or destroyed and, if required by the Surviving Corporation, the posting
by such person of a bond in such reasonable amount as the Surviving Corporation
may direct as indemnity against any claim that may be made against it with
respect to such Certificate, the Exchange Agent will issue in exchange for such
lost, stolen or destroyed Certificate the shares of Parent Common Stock, cash in
lieu of fractional shares, and unpaid dividends and distributions on shares of
Parent Common Stock as provided in Section 2.5.(d), deliverable in respect
thereof pursuant to this Agreement.

          2.6.   COMPANY PURCHASE RIGHTS. Each of the Company Purchase Rights,
whether vested or unvested, shall, subject to the terms of any applicable stock
option, warrant agreement or other applicable agreement evidencing the same,
remain outstanding following the Effective Time. At the Effective Time, such
Company Purchase Rights shall, by virtue of the Merger and without any further
action on the part of the Company, Parent, Sub or the holder of any Company
Purchase Right, be assumed by Parent in such manner that Parent (x) is a
corporation "assuming a stock option in

                                      10
<PAGE>
 
a transaction to which Section 424 applied" within the meaning of Section 422A
of the Code or (y) to the extent Section 424 of the Code does not apply to any
such Company Purchase Rights, would be such a corporation were Section 424
applicable to such option.  Each Company Purchase Right assumed by Parent shall
be exercisable upon the same terms and conditions as under the applicable stock
option, warrant agreement or other applicable agreement evidencing the same,
except that (i) each such Company Purchase Right shall be exercisable for that
number of shares of Parent Common Stock (to the nearest whole share) into which
the number of shares of Company Common Stock subject to such Company Purchase
Right immediately prior to the Effective Time would be converted under Section
2.5.(a) of this Agreement, and (ii) the option price per share of Parent Common
Stock shall be equal to (x) the per share exercise price of such Company
Purchase Right in effect immediately prior to the Effective Time multiplied by
the number of shares of Company Common Stock subject to such Company Purchase
Right immediately prior to the Effective Time, divided by (y) the number of
                                               ----------                  
shares of Parent Common Stock subject to such Company Purchase Right immediately
after the Effective Time.  No payment shall be made for fractional interests.
In connection with the assumption of the Company Purchase Rights, Parent shall
effect such assumption in such manner as not to affect the "incentive" status of
those options which are "incentive" stock options within the meaning of the Code
at the Effective Time.  From and after the date hereof, no additional Company
Purchase Rights shall be granted by the Company and no "vesting" or exercise
schedule of Company Purchase Rights shall be modified or accelerated (other than
pursuant to the express terms of such Company Purchase Right) and no exercise
price of any Company Purchase Right shall be modified without the prior written
consent of Parent.

          2.7.   CLOSING OF TRANSFER BOOKS.  At and after the Effective Time,
transfers of the shares of Company Common Stock outstanding immediately prior to
the Effective Time shall not be made on the stock transfer books of the Company.

          2.8.   RELATED AGREEMENT.  Each of the Principal Stockholders have
executed and delivered to the Parent a separate agreement pursuant to which they
(i) agree to vote the shares of Company Common Stock held by them in favor of
this Agreement and the Merger at the Stockholders Meeting called for that
purpose and have granted a proxy to Parent to do the same in their place and
stead, and (ii) agree not to sell, transfer, hypothecate or otherwise dispose of
any of their shares of Company Common Stock or Company Purchase Rights held by
them as of the date hereof until the earlier to occur of termination of this
Agreement or the Effective Time, except as expressly provided for therein.

     3.   CLOSING DATE.  The Closing of the Merger (the "Closing") shall, unless
          ------------                                                          
another date or place is agreed to in writing by the parties, take place at the
offices of Troop Meisinger Steuber & Pasich, 10940 Wilshire Boulevard, Los
Angeles, California 90024


                                      11
<PAGE>
 
(except for the filing of the Certificate of Merger, which shall take place in
the office of the Secretary of State of the State of Delaware) on the second
business day following the satisfaction or waiver of all conditions precedent to
the Merger, including those set forth in Sections 7, 8 and 9 of this
Agreement, but in no event later than 60 days after the Form S-4 becomes
effective.  The date of the Closing is referred to in this Agreement as the
"Closing Date."

     4.   REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  Except as set forth in
          ----------------------------------------------                        
the disclosure letter delivered at or prior to the execution of this Agreement
by the Company, which shall refer to the relevant Sections of this Agreement
(the "Company Disclosure Letter"), the Company represents and warrants to and
agrees with Parent and Sub as follows:

          4.1.   ORGANIZATION AND STANDING; ARTICLES AND BY-LAWS.  The Company
is a corporation duly organized, validly existing and in good standing under the
laws of the State of Delaware.  The Company is qualified, licensed or
domesticated as a foreign corporation and is in good standing in all
jurisdictions where the character of its properties owned or held under lease or
the nature of its activities make such qualification necessary, except where the
failure to be so qualified, licensed or domesticated would not have a Material
Adverse Effect on the Company.  The Company has all requisite power and
authority and all requisite licenses, permits and franchises necessary to own,
lease and operate its properties and assets and to carry on its business in the
manner and in the locations as presently conducted, except where the failure to
do so would not have a Material Adverse Effect on the Company.  Copies of the
Certificate of Incorporation (as certified by the Delaware Secretary of State)
and Bylaws of the Company have been delivered to Parent and are accurate and
complete as of the date hereof.

          4.2.   AUTHORIZATION.  The Company has the requisite corporate power
and authority to enter into and carry out the terms and conditions of this
Agreement and all the transactions contemplated hereunder. The execution and
delivery of this Agreement and the consummation of the transactions contemplated
hereby have been duly authorized by the Company's Board of Directors and, other
than the Stockholder approval required pursuant to Section 6.4 hereof, all
corporate proceedings have been taken and no other corporate proceedings on the
part of the Company are necessary to authorize the execution, delivery and
performance by the Company of this Agreement.  This Agreement has been duly
executed and delivered by the Company and constitutes the valid and binding
obligations of the Company, enforceable in accordance with its terms, except as
enforceability may be limited by applicable bankruptcy, insolvency,
reorganization, moratorium or similar laws relating to or affecting creditors'
rights generally from time to time in effect and except that equitable remedies
may not in all cases be available (regardless of whether enforceability is
considered in a proceeding at law or in equity) (collectively, the

                                      12
<PAGE>
 
"Remedies Exception").  The execution, delivery and performance of this
Agreement by the Company will not conflict with or constitute a breach,
violation or default under the Company's Certificate of Incorporation or By-
Laws, any statute, law or administrative regulation, or under any judgment,
decree, order, writ, governmental permit or license, any material contract,
agreement, lease, indenture or instrument to which the Company or any of its
Subsidiaries is a party or by which the Company or any of its Subsidiaries is
bound, which breach, violation or default would have a Material Adverse Effect
on the Company.

          4.3.   NO CONSENTS.  No consent, authorization, order or approval of,
or filing with or registration with, any governmental authority, commission,
board or other regulatory body of the United States or any state or political
subdivision thereof, or any other Person, is required to be made or obtained by
the Company for or in connection with the execution and delivery by the Company
of this Agreement and the consummation by the Company of the transactions
contemplated hereby, the absence of which would have a Material Adverse Effect
on the Company, other than the filing of the Certificate of Merger with the
Delaware Secretary of State and filings made pursuant to the Hart Scott Act.

          4.4.   CAPITAL STOCK.  The authorized capital stock of the Company
consists of 20,000,000 shares of Company Common Stock, par value $0.01 per
share, and 1,000,000 shares of Preferred Stock, $0.01 par value per share.  As
of the date hereof, (i) there are 8,595,544 shares of Company Common Stock
issued and outstanding, all of which are duly authorized, validly issued, fully
paid and non-assessable and were not issued in violation of any preemptive
rights or any Federal or State securities laws, (ii) no shares of Company Common
Stock are held by Subsidiaries of the Company, and (iii) 237,564 shares of
Company Common Stock are reserved for future issuance under outstanding Company
Purchase Rights (assuming that the financial criteria for the achievement of
contingent payment provisions in agreements pursuant to which the Company
acquired its Veterinary Hospitals were to be met, but not exceeded).  As of the
date hereof, there are no shares of Company Preferred Stock issued and
outstanding.  As of the date hereof, there are (i) no options, warrants, calls,
subscriptions, convertible securities or other rights, (including preemptive
rights), agreements, understandings, arrangements or commitments of any
character obligating the Company now or at any time in the future to issue or
sell any of its capital stock or other equity interests of the Company or any of
its Subsidiaries, (ii) there are no obligations, contingent or otherwise, of the
Company or any of its Subsidiaries, to repurchase, redeem or otherwise acquire
any shares of capital stock or other equity interests of the Company or any of
its Subsidiaries or to provide funds or to make any investment (in the form of a
loan, capital contribution or otherwise) in any Subsidiary or another entity,
other than guarantees of bank obligations of Subsidiaries entered into in the
ordinary course of business, (iii) there are no outstanding bonds,

                                      13
<PAGE>
 
debentures, notes or other obligations of the Company the holders of which have
the right to vote (or which are convertible into or exercisable for securities
having the right to vote) with the Company shareholders on any matter, (iv)
there are no obligations, contingent or otherwise, guaranteeing the value of any
of the shares of the Common Stock of the Company or any of its Subsidiaries
either now or at any time in the future, and (v) there are no voting trusts,
proxies or other agreements or understandings to which the Company is a party or
is bound with respect to the voting of any capital stock or other equity
interests of the Company or any of its Subsidiaries.

          4.5.   SUBSIDIARIES.  The Company Disclosure Letter sets forth a true
and correct list of each Subsidiary of the Company as of the date hereof.  All
of the outstanding capital stock of each such Subsidiary is owned entirely by
the Company or by a Subsidiary of the Company, as the case may be, as of the
date hereof, free and clear of all liens, charges, pledges, security interests
or other encumbrances, except for restrictions on transfer imposed by applicable
securities laws.  All such shares of capital stock have been duly authorized and
validly issued and are fully paid and nonassessable. There are no agreements,
understandings or undertakings governing the rights and duties of the Company or
any Subsidiary of the Company as a stockholder of any Subsidiary, including,
without limitation, any agreement, arrangement or understanding under which the
Company is or may become obligated, directly or indirectly, to acquire or
dispose of any equity interest in, make any capital contribution or extend
credit to, or act as guarantor, surety or indemnitor for any liability of any
Subsidiary.  Each such Subsidiary is duly organized, validly existing and in
good standing under the laws of its jurisdiction of organization, has the
corporate power and authority to carry on its business as it is now being
conducted and is duly qualified to do business and is in good standing in all
jurisdictions where the failure to be so qualified would have a Material Adverse
Effect on the Company.  Other than its Subsidiaries, the Company has no interest
in any corporation, joint venture, partnerships or other business enterprise.

          4.6.   SEC REPORTS AND FINANCIAL STATEMENT.  The Company has filed
with the SEC all forms, reports, registration statements, proxy statements and
other documents (collectively, the "Company Reports") required to be filed by
the Company under the Securities Act, the Exchange Act, and the rules and
regulations promulgated thereunder (collectively, the "Securities Laws"), except
failures to file which, individually or collectively, do not have a Material
Adverse Effect on the Company.  The Company has heretofore furnished Parent with
true and complete copies of all Company Reports filed as of the date hereof.  As
of their respective dates, or, in the case of registration statements, as of
their effective dates, all of the Company Reports, including all exhibits and
schedules thereto and all documents incorporated by reference therein, (i)
complied as to form in all material respects with the

                                      14
<PAGE>
 
requirements of the Securities Laws applicable thereto, and (ii) did not contain
any untrue statement of a material fact or omit to state a material fact
required to be stated therein or necessary to make the statements, in light of
the circumstances under which they were made, not misleading.  The Company has
filed with the SEC all documents and agreements which were required to be filed
as exhibits to the Company Reports, except failures to file, if any, which,
individually or collectively, do not have a Material Adverse Effect on the
Company.  The audited consolidated financial statements and unaudited interim
consolidated financial statements of the Company included or incorporated by
reference in the Company Reports (collectively, the "Company Financial
Statements") have been prepared in accordance with GAAP applied on a consistent
basis (except as may be indicated therein or in the notes thereto) and fairly
present the financial position of the Company as of and at the dates thereof and
the results of operations and cash flows for the periods then ended, subject in
the case of the unaudited interim financial statements, to normal, recurring
year-end adjustments and any other adjustments described therein, which were not
and are not expected to be material in amount or effect.  Except as set forth or
reflected in the Company Financial Statement at December 28, 1994, or as set
forth in the unaudited balance sheets included in the Company Reports since that
date, neither the Company nor any of its Subsidiaries, has any liabilities or
obligations of any kind or nature (whether accrued, absolute, contingent or
otherwise) which would be required to be reflected or reserved against in any
balance sheet of the Company or any of its Subsidiaries, or in the notes
thereto, prepared in accordance with GAAP consistently applied, except
liabilities arising since September 27, 1995 either (i) in the ordinary course
of business; or (ii) which, individually or collectively, would not have a
Material Adverse Effect on the Company.

          4.7.   ABSENCE OF CERTAIN CHANGES OR EVENTS.  Except as disclosed in
the Company Reports filed with the SEC prior to the date hereof, since December
28, 1994, the Company and its Subsidiaries has conducted its business in all
material respects in the ordinary and usual course consistent with past
practice, and there has not been (a) any event or occurrence which could result
in a Material Adverse Effect on the Company, (b) any material change in
accounting methods, principles and practices by the Company and its Subsidiaries
(except for any such changes required by reason of a concurrent change in GAAP
or to conform a Subsidiary's accounting methods, principles or practices to
those of the Company), (c) any damage, destruction or loss, whether covered by
insurance or not, having a Material Adverse Effect on the Company, (d) any entry
by the Company or any of its Subsidiaries into any commitment or transaction
material to the Company which is not in the ordinary course of business
consistent with past practice, (e) any declaration, payment or setting aside for
payment of any dividends, or (f) any grant to any officer or director of any
increase in compensation (other than periodic salary increases not in excess of
10% made in the ordinary course

                                      15
<PAGE>
 
of business consistent with past practice or increases resulting from job
promotions or expansions of employment responsibilities), or any loan to any
officer or director, or any adoption, amendment in any material respect or
termination of any bonus, profit sharing, stock option, employee stock
ownership, pension, retirement, deferred compensation, employment or consulting
or other plan, agreement or arrangement for the benefit of employees of the
Company.

          4.8.   LITIGATION.  The Company has disclosed in the Company
Disclosure Letter all information in its possession or custody or under its
control with respect to litigation pending as of the date hereof.  Except as set
forth in the Company Disclosure Letter, the Company has no litigation pending as
of the date hereof.  To the best of the Company's knowledge, the ultimate
liability for damages arising from such litigation (based upon assumptions that
the Company believes in good faith to be reasonable under the circumstances) is
either adequately reserved against in the Company Financial Statement at
December 28, 1994 or in the unaudited balance sheets included in the Company
Reports since that date or will not have a Material Adverse Effect on the
Company.  Except as set forth in the Company Disclosure Letter, there are no
actions, suits or proceedings of any nature pending, or, to the knowledge of the
Company, threatened, against or by the Company or any of its properties, assets
or business, nor is the Company or any of its properties, assets or business,
subject to any order, judgment, ruling, or decree of any competent authority,
which would have, or is reasonably like to have, a Material Adverse Effect on
the Company.  The Company has not received notice of violation of any applicable
statute, regulation, code, ordinance, rule, order, judgment, decree or
requirement relating to its operations or its owned or leased properties and to
the Company's knowledge, no such violation exists, in each case, other than a
violation which would not have a Material Adverse Effect on the Company.

          4.9.   TAX RETURNS.  The Company and each of its Subsidiaries (i) has
accurately prepared and duly and timely filed all federal and  state and all
other material income, property, sales and use and other applicable tax reports
and returns ("Tax Returns") required to be filed (subject to any extensions
applicable to any such filing) except where the failure to do so would not have
a Material Adverse Effect on the Company, and all such returns are true and
complete in all material respects, (ii) has paid all Taxes shown to be due and
payable on such Tax Returns or which have become due and payable pursuant to any
assessment, deficiency notice, 30-day letter, or other notice received by it,
and (iii) has properly accrued all Taxes for such periods subsequent to the
periods covered by the Tax Returns, except for any Taxes which would not have a
Material Adverse Effect on the Company.  The Tax Returns of the Company and each
of its Subsidiaries have not been examined by the appropriate taxing authority.
Neither the Company nor any of its Subsidiaries has

                                      16
<PAGE>
 
executed or filed with the Internal Revenue Service ("IRS") or any other taxing
authority any agreement now in effect extending the period for assessment or
collection of any income or other Taxes.  Neither the Company nor any of its
Subsidiaries is a party to any pending action or proceeding by any governmental
authority for assessment or collection of Taxes, and to the knowledge of the
Company, no claim for assessment or collection of Taxes has been asserted
against it.  True, correct and complete copies of all Tax Returns filed by the
Company and each of its Subsidiaries and all communications relating thereto
have been delivered to Parent or made available to the representatives of
Parent.  All Taxes which the Company is required to withhold or collect,
including without limitation, sales and use taxes, have been duly withheld or
collected and, to the extent required, have been paid over to the proper
governmental authorities or are held in separate bank accounts for such
purposes, except where the failure to do so would not have a Material Adverse
Effect on the Company.  For purposes hereof, the term, "Taxes" shall mean and
include all taxes, charges, fees, levies or other assessments, including,
without limitation, income, gross receipts, excise, property, sales,
withholding, social security, occupation, use, service, license, payroll,
franchise, transfer and recording taxes, fees and charges imposed by the United
States, or any state, local or foreign government or subdivision or agency
thereof, whether computed on a separate, consolidated, unitary, combined or any
other basis; and such term shall include any interest, fines, penalties or
additional amounts attributable or imposed on or with respect to any such taxes,
charges, fees, levies or other assessments.

          4.10.  PROPERTIES, ENCUMBRANCES.  The Company and its Subsidiaries
have good and marketable title in fee simple to, or a valid leasehold interest
in, each of the real properties reflected on the Company Financial Statements or
which have been acquired after the date thereof or used by them as of the date
hereof (collectively, the "Company Properties"), in each case, free and clear of
all liens, mortgages or deeds of trust, claims against title, security interests
or other encumbrances on title ("Liens") or any rights of way, written
agreements, laws, ordinances or regulations affecting the use or occupancy of
such properties, or any reservations of an interest in title ("Restrictions")
except (a) Liens and Restrictions included in the Company Disclosure Letter, (b)
the rights of the landlords under applicable leases, and (c) Liens and
Restrictions which do not have a Material Adverse Effect on the Company.  All
rental payments due under any lease pursuant to which the Company uses any
Company Property has been paid and neither the Company nor any of its
Subsidiaries is in default, and to the knowledge of the Company, the landlord
under the lease is not in default, and no condition or event exists which with
the giving of notice or the passage of time, or both, would constitute a
material default by any party under any such leases other than any such non-
payment or default which could not have a Material Adverse Effect on the
Company.

                                      17
<PAGE>
 
          4.11.  PERSONAL PROPERTY.  The Company and its Subsidiaries own good
and marketable title to or a valid right to use all items of personal property
owned or used by them which are material to their business, free and clear of
all Liens other than those which would not, individually or in the aggregate,
have a Material Adverse Effect on the Company.

          4.12.  EMPLOYEE BENEFIT PLANS.  The Company Disclosure Letter sets
forth a list of all plans and other arrangements involving direct or indirect
compensation or benefits to officers, directors or consultants or providing
employee benefits to employees of the Company or its Subsidiaries, including,
without limitation, all "employee benefit plans" as defined in Section 3(3) of
the Employee Retirement Income Security Act of 1974, as amended ("ERISA"), and
all bonus, stock option, stock purchase, incentive, deferred compensation,
supplemental retirement, severance and other similar fringe or employee benefit
plans, and all employment or executive compensation agreements (collectively,
the "Company Plans").  All Company Plans comply with and are and have been
operated in material compliance with each applicable provision of ERISA, the
Code, other federal statutes, state law (including, without limitation, state
insurance law) and the regulations and rules promulgated pursuant thereto or in
connection therewith, except for any such failure to comply which would not have
a Material Adverse Effect on the Company.  No Company Plan is covered by Title
IV of ERISA or Section 412 of the Code.  Neither the Company, any of its
Subsidiaries, nor any affiliate of the Company as determined under Section
414(b), (c), (m) or (o) of the Code ("ERISA Affiliate") has failed to make any
contributions or to pay any amounts due and owing as required by the terms of
any Company Plan, which failure would have a Material Adverse Effect on the
Company. True and complete copies of each Company Plan have been made available
to Parent or its representatives.  Except as required by Section 4980B of the
Code, neither the Company, any of its Subsidiaries nor any ERISA Affiliate has
promised any former employee or other individual not employed by the Company,
any of its Subsidiaries or any ERISA Affiliate, medical or other benefit
coverage, and neither the Company, any of its Subsidiaries nor any ERISA
Affiliate maintains or contributes to any plan or arrangement providing medical
benefits, life insurance or other welfare benefits to former employees, their
spouses or dependents or any other individual not employed by the Company, any
of its Subsidiaries or any ERISA Affiliate except to the extent required by
applicable law.

          4.13.  CERTAIN AGREEMENTS.  Except as set forth in the Company
Disclosure Letter, neither the Company nor any of its Subsidiaries is a party to
any oral or written (i) material agreement (including, without limitation, any
employment, management, severance or consulting contract) with any current or
former officer, director, or holder of more than 10% of the outstanding shares
of the Company Common Stock or with any entity

                                      18
<PAGE>
 
in which any of the foregoing is a more than 10% equity owner, officer,
director, employee or consultant, (ii) any agreement the benefits of which are
contingent, or the terms of which are materially altered, upon the occurrence of
a transaction involving the Company or any of its Subsidiaries of the nature
contemplated by this Agreement, (iii) agreement or plan, including any stock
option plan, stock appreciation rights plan, restricted stock plan or stock
purchase plan, any of the benefits of which will be increased, or the vesting of
benefits of which will be accelerated, by the occurrence of the transactions
contemplated by this Agreement or the value of any of the benefits of which will
be calculated on the basis of the transactions contemplated by this Agreement or
(iv) agreement involving the acquisition of any interest or investment in a
veterinary hospital or any other business.

          4.14.  COMPLIANCE WITH APPLICABLE LAW.  The businesses of the Company
and its Subsidiaries are not being conducted in violation of any applicable law,
ordinance, regulation, decree or order of any governmental entity, except for
violations which either singly or in the aggregate do not and are not expected
to have a Material Adverse Effect on the Company.  Neither the Company nor any
Company Subsidiary is a party to or subject to any judgment, decree, or order
entered in any suit or proceeding brought by any governmental agency or by any
other person, enjoining the Company or any Company Subsidiary with respect to
any business practice, the acquisition of any property, or the conduct of
business in any area.

          4.15.  ENVIRONMENTAL COMPLIANCE MATTERS.  The businesses of the
Company and its Subsidiaries as conducted in the past were not and as currently
being conducted are not in violation of any applicable law, ordinance, rule,
prohibition or regulation relating to air, water or noise pollution, or the
production, storage, labeling or disposition of wastes or hazardous or toxic
substances, or the health, safety or environmental conditions on, beneath or
about any of the properties owned, used or leased by the Company or any of its
Subsidiaries or relating to the business of the Company or any of its
Subsidiaries (such laws, ordinances, rules, prohibitions and regulations being
herein referred to as "Environmental Laws"), except for any such violation which
would not have a Material Adverse Effect on the Company.  The Company and its
Subsidiaries have timely filed all material reports, obtained all material
approvals and permits and generated and maintained all material data,
documentation and records required under any applicable Environmental Laws,
except where the failure to do so would not have a Material Adverse Effect on
the Company.  Neither the Company, its Subsidiaries nor, to the knowledge of the
Company or its Subsidiaries, any other Person has placed, stored, buried,
spilled or released, used, generated, manufactured, refined, processed, treated,
dumped or disposed of any materials produced by, or resulting from, any
business, commercial or industrial activities, operations or processes,
including without limitation

                                      19
<PAGE>
 
any materials which are "Hazardous Wastes", "Hazardous Substances", "Hazardous
Materials", "Pollutants", "Toxic Substances", "Solid Wastes" or "Contaminants"
(as such terms are defined in any applicable Environmental Law, including
without limitation the Comprehensive Environmental Response, Compensation and
Liability Act of 1980, as amended, the Hazardous Materials Transportation Act,
the Resource Conservation and Recovery Act and the Toxic Substances Control
Act), on, beneath or about, or transported any such materials to or from, any of
the properties owned, used or leased by the Company or its Subsidiaries in each
case other than in material compliance with applicable Environmental Laws and in
the ordinary course of the Company's or its Subsidiaries' business or where the
failure to comply would not have a Material Adverse Effect on the Company.
Neither the Company nor its Subsidiaries has received any notice from any
governmental agency or private or public entity advising it that it is or may be
responsible, or potentially responsible, for costs with respect to a release, a
threatened release or clean up of materials located in any property owned by the
Company or its Subsidiaries or produced by, or resulting from, any business,
commercial or industrial activities, operations or processes of the Company or
its Subsidiaries, including without limitation, materials which are Hazardous
Wastes, Hazardous Substances, Hazardous Materials, Pollutants, Toxic Substances,
Solid Wastes or Contaminants.

          4.16.  NO BROKERS.  Other than with respect to the services of Smith
Barney Inc., the Company's financial advisor, (the arrangements with which have
been disclosed in writing to Parent), neither the Company nor any Company
Subsidiary has entered into any contract, arrangement or understanding with any
Person or firm which may result in the obligation of the Company, the Surviving
Corporation or the Parent to pay any finder's fee, brokerage or agent's
commissions or other like payments in connection with the negotiation, execution
or performance of this Agreement and the Company is not aware of any claim for
any such payment.

          4.17.  REGISTRATION STATEMENT; PROXY STATEMENT/PROSPECTUS.  None of
the information supplied by the Company for inclusion or incorporation by
reference in (a) the Form S-4, or (b) the Proxy Statement/Prospectus will, in
the case of the Form S-4, at the time it becomes effective and at the time of
the respective meetings of the Company's and Parent's stockholders to vote on
this Agreement and the transactions contemplated hereby, and in the case of the
Proxy Statement/Prospectus, at the time of the mailing thereof to the
stockholders of the Company and Parent and at the time of the stockholders
meetings, contain  any untrue statement of a material fact or omit to state a
material fact required to be stated therein or necessary to make the statements
therein, in light of the circumstances under which they were made, not
misleading.

                                      20
<PAGE>
 
          4.18.  INFORMATION.  All written information provided to Parent, Sub
or their respective agents by or on behalf of the Company or any of its
representatives (including, without limitation, each representation and warranty
of the Company set forth in this Agreement) is, and the Company covenants that
any such information provided hereafter shall be, true and correct in all
material respects and does not, or shall not, omit any material fact required to
be included therein or necessary to make the statements therein, in light of the
circumstances under which they were made, not misleading.

          4.19.  TAX FREE MERGER.  At the Effective Time, the Surviving
Corporation will acquire at least 90 percent of the fair market value of the net
assets, and at least 70 percent of the fair market value of the gross assets,
held by the Company prior to the Merger.  For purposes of this representation,
amounts used by the Company to pay reorganization expenses and all redemptions,
distributions and payments, in cash or property, made by the Company in
connection with the Merger shall be included as assets of the Company prior to
the Merger.

          4.20.  RELATED PARTY INDEBTEDNESS AND OBLIGATIONS.  Any and all
indebtedness from any current or former officer or director of the Company or
shareholder of 10% or more of Company Common Stock and any affiliate thereof,
other than indebtedness incurred in connection with the acquisition of any
Veterinary Hospital, has been repaid in full, and all contractual obligations,
other than those incurred in connection with the acquisition of any Veterinary
Hospital, to all such persons other than those expressly provided for herein and
other than as set forth in the Company Disclosure Letter have been terminated
without payment of any severance or termination fee.

          4.21.  NO DISSENTERS RIGHTS.  Pursuant to Section 262(b)(i) of the
Delaware Law, there are no dissenters rights available to the Company
Stockholders.

          4.22.  STOCKHOLDER INTENTION TO SELL.  To the knowledge of the
Company, no stockholder of the Company has a present plan or intention to sell,
exchange, or otherwise dispose of the shares of Parent Common Stock such
stockholder will receive in connection with the Merger.

     5.   REPRESENTATIONS AND WARRANTIES OF THE PARENT.  Except as set forth in
          --------------------------------------------                         
the disclosure letter delivered at or prior to the execution of this Agreement
by the Parent, which shall refer to the relevant Sections of this Agreement (the
"Parent Disclosure Letter"), the Parent and Sub jointly and severally represent,
warrant, covenant and agree with the Company as follows:

                                      21
<PAGE>
 
          5.1.   ORGANIZATION AND STANDING; ARTICLES AND BY-LAWS.  Each of
Parent and Sub is a corporation duly organized, validly existing and in good
standing under the laws of the State of Delaware. Parent is qualified, licensed
or domesticated as a foreign corporation and is in good standing in all
jurisdictions where the character of its properties owned or held under lease or
the nature of its activities make such qualification necessary, except where the
failure to be so qualified, licensed or domesticated would not have a Material
Adverse Effect on Parent. Sub has not conducted any business prior to the date
hereof and has no material assets and liabilities other than those incident to
its formation. The Parent has all requisite power and authority and all
requisite licenses, permits and franchises necessary to own, lease and operate
its properties and assets and to carry on its business in the manner and in the
locations as presently conducted, except where the failure to do so would not
have a Material Adverse Effect on Parent. Copies of the Certificate of
Incorporation (as certified by the Delaware Secretary of State) and Bylaws of
each of Parent and Sub have been delivered to the Company and are accurate and
complete as of the date hereof.

          5.2.   AUTHORIZATION.  Each of the Parent and Sub has the requisite
corporate power and authority to enter into and carry out the terms and
conditions of this Agreement and all the transactions contemplated hereunder.
The execution and delivery of this Agreement and the consummation of the
transactions contemplated hereby have been duly authorized by Parent's and Sub's
Boards of Directors and, other than the stockholder approval required pursuant
to Section 6.4 hereof, all corporate proceedings have been taken and no other
corporate proceedings on the part of Parent or Sub are necessary to authorize
the execution, delivery and performance by Parent and Sub of this Agreement.
This Agreement has been duly executed and delivered by each of Parent and Sub
and constitutes the legal, valid and binding obligations of Parent and Sub,
enforceable against each in accordance with its terms, subject to the Remedies
Exception.  The execution, delivery and performance of this Agreement by the
Parent and Sub will not conflict with or constitute a breach, violation or
default under the Parent's or Sub's Certificate of Incorporation or By-Laws, any
statute, law or administrative regulation, or under any judgment, decree, order,
writ, governmental permit or license, any material contract, agreement, lease,
indenture or instrument to which the Parent or Sub or any of the Subsidiaries of
Parent is a party or by which the Parent or any of the Subsidiaries of Parent is
bound, which breach, violation or default would have a Material Adverse Effect
on the Parent.

          5.3.   NO CONSENTS.  No consent, authorization, order or approval of,
or filing with or registration with, any governmental authority, commission,
board or other regulatory body of the United States or any state or political
subdivision thereof, or any other Person, is required to be made or obtained by
Parent or Sub for or in connection with the execution and delivery by Parent and
Sub of

                                      22
<PAGE>
 
this Agreement and the consummation by Parent and Sub of the transactions
contemplated hereby, the absence of which would have a Material Adverse Effect
on Parent, other than the filing of the Certificate of Merger with the Delaware
Secretary of State, filings made pursuant to the Hart Scott Act, compliance with
the Securities Laws and compliance with any applicable state securities or "blue
sky" laws.

          5.4.   CAPITALIZATION. The authorized capital stock of Parent consists
of 30,000,000 shares of Parent Common Stock, par value $0.001 per share, and
1,000,000 shares of Preferred Stock, $0.001 par value per share. As of the date
hereof, (i) there are 12,496,666 shares of Parent Common Stock issued and
outstanding, all of which are duly authorized, validly issued, fully paid and
non-assessable and were not issued in violation of any preemptive rights or any
Federal or State securities laws, (ii) there are 583,333 shares of Parent
Preferred Stock issued and outstanding, all of which are duly authorized,
validly issued, fully paid and nonassessable and were not issued in violation of
any preemptive rights or any Federal or State securities laws, (iii) no shares
of Parent Common Stock are held by Subsidiaries of the Parent, (iv) 3,483,932
shares of Parent Common Stock are reserved for future issuance under outstanding
Parent Purchase Rights, and (v) 970,000 shares of Parent Common Stock (subject
to adjustment) are reserved for future issuance in connection with the
acquisition of a Veterinary Hospital. As of the date hereof, there are (i) no
options, warrants, calls, subscriptions, convertible securities or other rights,
(including preemptive rights), agreements, understandings, arrangements or
commitments of any character obligating the Parent now or at any time in the
future to issue or sell any of its capital stock or other equity interests of
the Parent or any of its Subsidiaries, (ii) there are no obligations, contingent
or otherwise, of the Parent or any of its Subsidiaries, to repurchase, redeem or
otherwise acquire any shares of capital stock or other equity interests of the
Parent or any of its Subsidiaries or to provide funds or to make any investment
(in the form of a loan, capital contribution or otherwise) in any Subsidiary or
another entity, other than guarantees of bank obligations of Subsidiaries
entered into in the ordinary course of business, (iii) there are no outstanding
bonds, debentures, notes or other obligations of Parent the holders of which
have the right to vote (or which are convertible into or exercisable for
securities having the right to vote) with the Parent shareholders on any matter,
(iii) there are no obligations, contingent or otherwise, guaranteeing the value
of any of the shares of the Common Stock of the Parent or any of its
Subsidiaries either now or at any time in the future, and (iv) there are no
voting trusts, proxies or other agreements or understandings to which the Parent
is a party or is bound with respect to the voting of any capital stock or other
equity interests of the Parent or any of its Subsidiaries.

                                      23
<PAGE>
 
          5.5.   AUTHORIZATION OF PARENT COMMON STOCK. The issuance of shares of
Parent Common Stock at the Closing will have been duly authorized by all
necessary corporate action prior to the Effective Time and, when issued as
contemplated by this Agreement, all such shares of Parent Common Stock will be
validly issued, fully paid and non-assessable.

          5.6.   SEC REPORTS.  The Parent has filed with the SEC all forms,
reports, registration statements, proxy statements and other documents
(collectively, the "Parent Reports") required to be filed by the Parent under
the Securities Laws, except failures to file which, individually or
collectively, do not have a Material Adverse Effect on Parent.  The Parent has
heretofore furnished the Company with true and complete copies of all Parent
Reports filed as of the date hereof.  As of their respective dates, or, in the
case of registration statements, as of their effective dates, all of the Parent
Reports, including all exhibits and schedules thereto and all documents
incorporated by reference therein, (i) complied as to form in all material
respects with the requirements of the Securities Laws applicable thereto, and
(ii) did not contain any untrue statement of a material fact or omit to state a
material fact required to be stated therein or necessary to make the statements
therein, in light of the circumstances under which they were made, not
misleading.  The Parent has filed with the SEC all documents and agreements
which were required to be filed as exhibits to the Parent Reports, except
failures to file, if any, which, individually or collectively, do not have a
Material Adverse Effect on Parent.  The audited consolidated financial
statements and unaudited interim consolidated financial statements of the Parent
included or incorporated by reference in the Parent Reports (collectively, the
"Parent Financial Statements") have been prepared in accordance with GAAP
applied on a consistent basis (except as may be indicated therein or in the
notes thereto) and fairly present the financial position of the Parent as of and
at the dates thereof and the results of operations and cash flows for the
periods then ended, subject in the case of the unaudited interim financial
statements, to normal, recurring year-end adjustments and any other adjustments
described therein, which were not and are not expected to be material in amount
or effect.  Except as set forth or reflected in the Parent Financial Statement
at December 31, 1995, or as set forth in the unaudited balance sheets included
in the Parent Reports since that date, neither the Parent nor any of its
Subsidiaries, has any liabilities or obligations of any kind or nature (whether
accrued, absolute, contingent or otherwise) which would be required to be
reflected or reserved against in any balance sheet of the Parent or any of its
Subsidiaries, or in the notes thereto, prepared in accordance with GAAP
consistently applied, except liabilities since December 31, 1995 either (i) in
the ordinary course of business or (ii) which, individually or collectively,
would not have a Material Adverse Effect on Parent.

                                      24
<PAGE>
 
          5.7.   ABSENCE OF CERTAIN CHANGES OR EVENTS.  Except as disclosed in
the Parent Reports filed with the SEC prior to the date hereof, since December
31, 1995, the Parent and its Subsidiaries have conducted their business in all
material respects in the ordinary and usual course consistent with past
practice, and there has not been (a) any event or occurrence which could result
in a Material Adverse Effect on Parent, (b) any material change in accounting
methods, principles and practices by the Parent and its Subsidiaries (except for
any such changes required by reason of a concurrent change in GAAP or to conform
a Subsidiary's accounting methods, principles or practices to those of Parent),
(c) any damage, destruction or loss, whether covered by insurance or not, having
a Material Adverse Effect on the Parent, (d) any entry by the Parent or any of
its Subsidiaries into any commitment or transaction material to the Parent which
is not in the ordinary course of business consistent with past practice, or (e)
any declaration, payment or setting aside for payment of any dividends.

          5.8.   LITIGATION.  The Parent has disclosed in the Parent Disclosure
Letter all information in its possession or custody or under its control with
respect to litigation pending as of the date hereof.  Except as set forth in the
Parent Disclosure Letter, the Parent has no litigation pending as of the date
hereof.  To the best of the Parent's knowledge, the ultimate liability for
damages arising from such litigation (based upon assumptions that the Parent
believes in good faith to be reasonable under the circumstances) is either
adequately reserved against in the Parent Financial Statement at December 31,
1995 or in the unaudited balance sheets included in the Parent Reports since
that date or will not have a Material Adverse Effect on the Parent.  Except as
set forth in the Parent Disclosure Letter, there are no actions, suits or
proceedings of any nature pending, or, to the knowledge of the Parent,
threatened, against or by the Parent or any of its properties, assets or
business, nor is the Parent or any of its properties, assets or business,
subject to any order, judgment, ruling, or decree of any competent authority,
which would have, or is reasonably likely to have, a Material Adverse Effect on
Parent.  The Parent has not received notice of violation of any applicable
statute, regulation, code, ordinance, rule, order, judgment, decree or
requirement relating to its operations or its owned or leased properties and to
the Parent's knowledge, no such violation exists, in each case, other than a
violation which would not have a Material Adverse Effect on the Parent.

          5.9.   COMPLIANCE WITH APPLICABLE LAW.  The businesses of the Parent
and its Subsidiaries are not being conducted in violation of any applicable law,
ordinance, regulation, decree or order of any governmental entity, except for
violations which either singly or in the aggregate do not and are not expected
to have a Material Adverse Effect on the Parent.  Neither the Parent nor any
Parent Subsidiary is a party to or subject to any judgment, decree, or order
entered in any suit or proceeding brought by any governmental agency or by any
other person, enjoining the Parent or

                                      25
<PAGE>
 
any Parent Subsidiary with respect to any business practice, the acquisition of
any property, or the conduct of business in any area.

          5.10.  NO BROKERS.  Other than with respect to the services of NatWest
Securities, Limited, the Parent's financial advisor, (the arrangements with
which have been disclosed in writing to the Company), neither the Parent nor any
Subsidiary has entered into any contract, arrangement or understanding with any
Person or firm which may result in the obligation of the Parent, the Surviving
Corporation or the Company to pay any finder's fee, brokerage or agent's
commissions or other like payments in connection with the negotiation, execution
or performance of this Agreement and the Parent is not aware of any claim for
any such payment.

          5.11.  REGISTRATION STATEMENT; PROXY STATEMENT/PROSPEC-TUS.  None of
the information supplied by the Parent for inclusion or incorporation by
reference in (a) the Form S-4, or (b) the Proxy Statement/Prospectus will, in
the case of the Form S-4, at the time it becomes effective and at the time of
the respective meetings of the Company's and the Parent's stockholders to vote
on this Agreement and the transactions contemplated hereby, and in the case of
the Proxy Statement/Prospectus, at the time of the mailing thereof to the
stockholders of the Company and Parent and at the time of such stockholders
meetings, contain  any untrue statement of a material fact or omit to state a
material fact required to be stated therein or necessary to make the statements
therein, in light of the circumstances under which they were made, not
misleading.

          5.12.  INFORMATION.  All written information provided to Company or
its agents by or on behalf of the Parent or any of its representatives
(including, without limitation, each representation and warranty of the Parent
set forth in this Agreement) is, and the Parent covenants that any such
information provided hereafter shall be, true and correct in all material
respects and does not, or shall not, omit any material fact required to be
included therein or necessary to make the statements therein, in light of the
circumstances under which they were made, not misleading.

          5.13.  TAX FREE MERGER.

                 (a) At the Effective Time, by reason of the Merger, the
Surviving Corporation will acquire at least 90 percent of the fair market value
of the net assets and at least 70 percent of the fair market value of the gross
assets, held by the Company immediately prior to the Merger. For purposes of
this representation, amounts used by the Company to pay reorganization expenses
and all redemptions, distributions, and payments, in cash or property, made by
the Company to its stockholders in connection with the Merger shall be included
as assets of the Company prior to the Merger.

                                      26
<PAGE>
 
                 (b) Prior to the Merger, Parent will be in control of Sub
within the meaning of Section 368(c) of the Code.

                 (c) Parent has no plan or intention as part of the plan of the
Merger to cause the Surviving Corporation to issue after the Effective Time
additional shares of stock that would result in Parent losing control of the
Surviving Corporation within the meaning of Section 368(c) of the Code or any
warrants, options, convertible securities, or any other type of right pursuant
to which any person could acquire stock in the Surviving Corporation that, if
exercised or converted, would affect Parent's acquisition or retention of
control of the Surviving Corporation, as defined in Section 368(c) of the Code.

                 (d) Parent has no plan or intention to reacquire any of its
Parent Common Stock issued in the Merger.

                 (e) Parent has no plan or intention to liquidate the Surviving
Corporation, to merge the Surviving Corporation with or into another corporation
or to sell or otherwise dispose of the Surviving Corporation stock except for
transfers of stock to a corporation controlled by Parent.

                 (f) Following the Merger, the Surviving Corporation will
continue the Company's historic business or use a significant portion of its
historic business assets in a business.

                 (g) Following the Effective Time, Parent shall use its best
efforts, and shall cause the Surviving Corporation to use its best efforts, to
conduct its business and the Surviving Corporation's business in a manner which
would not jeopardize the characterization of the Merger as a reorganization
within the meaning of Section 368(a)(2)(D) of the Code.

     6.   PRE-MERGER COVENANTS OF PARENT AND THE COMPANY.  Each of Parent and
          ----------------------------------------------                     
the Company covenants and agrees with the other that:

          6.1.   CONDUCT OF BUSINESS BY THE COMPANY.  During the period from the
date of this Agreement until the earlier to occur of the termination of this
Agreement or the Effective Time, except as contemplated by this Agreement,
unless the Parent has consented in writing thereto, the Company (i) shall, and
shall cause each of its Subsidiaries to, conduct its operations only in, and the
Company and its Subsidiaries shall not take any action except in, the ordinary
course of business and in a manner consistent with past practice, and (ii) shall
use its reasonable commercial efforts, and shall cause each of its Subsidiaries
to use its reasonable commercial efforts, to preserve intact its respective
business organizations and goodwill, keep available the services of its
respective officers and employees and maintain satisfactory relationships with
those persons having business relationships with it, and (iii) shall confer on a
regular basis with one or more representatives of the Parent to report
operational matters of

                                      27
<PAGE>
 
materiality and any proposals to engage in any material transactions.  By way of
amplification and not limitation, and except as noted above, neither the Company
nor any of its Subsidiaries shall, during the period from the date of this
Agreement and continuing until the earlier of the termination of this Agreement
or the Effective Time, directly or indirectly, do, or propose to do, any of the
following without the prior written consent of Parent:

                 (a) amend or otherwise change its Certificate of Incorporation
or Bylaws;

                 (b) split, combine, reclassify or amend the terms of any of
its capital stock;

                 (c) declare, set aside or pay any dividend or distribution
payable in cash, stock or property or any combination thereof with respect to
shares of its capital stock;

                 (d) except pursuant to Company Purchase Rights outstanding on
the date hereof, authorize, issue, sell, pledge, encumber or agree to authorize,
issue, sell, pledge or encumber any additional shares of its capital stock of
any class or any other securities in respect of, in lieu of or in substitution
of Company Common Stock outstanding as of the date hereof or any options,
warrants, conversion rights or other rights to acquire capital stock of the
Company or any of its Subsidiaries;

                 (e) redeem or otherwise acquire any of its outstanding equity
securities or any outstanding options or rights to purchase any such equity
securities or make any commitment to take such action;

                 (f) accelerate, amend or change (or permit any acceleration,
amendment or change of) the period of exercisability of any Company Purchase
Right or authorize cash payments in exchange for any Company Purchase Right
(other than pursuant to the express terms of such Company Purchase Right);

                 (g) sell, pledge, dispose of or encumber any material assets of
the Company or any of its Subsidiaries, except in the ordinary course of
business consistent with past practice;

                 (h) acquire (by merger, consolidation or acquisition of stock
or assets) any corporation, partnership or any other business organization or
division thereof;

                 (i) incur any indebtedness for borrowed money, or assume,
guarantee or otherwise as an accommodation become responsible for, the
obligations of any other person or entity (in the case of any such indebtedness,
Parent's consent shall not be unreasonably withheld or delayed);

                                      28
<PAGE>
 
                 (j) authorize any capital expenditures or purchase of fixed
assets for the Company and its Subsidiaries which are in the aggregate more than
$500,000;

                 (k) increase the compensation or benefits payable or to become
payable to its officers or employees, except in amounts consistent with past
practices; or grant any severance or termination pay to, or enter into any
employment or severance agreement with, any director, officer or other employee
of the Company or any of its Subsidiaries; or establish any collective
bargaining, bonus, profit sharing, compensation, stock option, pension,
retirement, deferred compensation, employment or consulting or other plan,
agreement, trust, fund, plan, policy or arrangement for the benefit of any
current or former directors, officers or employees;

                 (l) take any action to change accounting policies or
procedures;

                 (m) make any material tax election inconsistent with past
practices or settle or compromise any material federal, state, local or foreign
tax liability;

                 (n) pay, discharge or satisfy any material claims, liabilities
or obligations other than in the ordinary course of business and consistent with
past practices;

                 (o) take or agree to take, any action which would cause a
material breach of any of the representations or warranties of the Company
contained in this Agreement or prevent the Company from performing or cause the
Company not to perform its covenants hereunder in any material respect; or

                 (p) submit any matters to the shareholders of the Company for a
vote prior to the Closing other than the Merger.

          6.2.   CONDUCT OF BUSINESS BY PARENT.  During the period from the date
of this Agreement until the earlier to occur of the termination of this
Agreement or the Effective Time, except as contemplated by this Agreement,
unless the Company has consented in writing thereto, which consent shall not be
unreasonably withheld, Parent (i) shall, and shall cause each of its
Subsidiaries to, conduct its operations only in, and Parent and its Subsidiaries
shall not take any action except in, the ordinary course of business and in a
manner consistent with past practice, (ii) shall use its reasonable commercial
efforts, and shall cause each of its Subsidiaries to use its reasonable
commercial efforts, to preserve intact its respective business organizations and
goodwill, keep available the services of its respective officers and employees
and maintain satisfactory relationships with those persons having business
relationships with it, and (iii) shall not amend any of the material terms or
provisions of Parent's securities, except for any such amendments which affect
equally all shares of Parent

                                      29
<PAGE>
 
Common Stock.  Notwithstanding the foregoing, nothing contained in this Section
6.2 shall serve to preclude Parent from effecting (i) any and all acquisitions
which have been or are approved by its Board of Directors or (ii) any debt or
equity financing which has been or is approved by its Board of Directors.

          6.3.   INSPECTION OF RECORDS.  From the date hereof to the earlier to
occur of the termination of this Agreement and the Effective Time, each of the
Company and Parent shall allow the duly authorized and appropriate officers,
attorneys, accountants and other representatives of the other access at all
reasonable times to the records and files, correspondence, audits and
properties, as well as to all information relating to commitments, contracts,
titles and financial position, or otherwise pertaining to, the business and
affairs of the Company and Parent and their respective Subsidiaries.  Parent and
the Company acknowledge that they are parties to that certain Confidentiality
Agreement, dated February  5, 1996 (the "Confidentiality Agreement") the terms
and conditions of which shall survive the execution of this Agreement and shall
continue to be binding on the parties with respect to the inspections referred
to in this Section 6.3 of this Agreement.

          6.4.   STOCKHOLDER APPROVAL.  Each of the Company and Parent will take
all necessary or appropriate action under the Exchange Act, Delaware Law and
their respective Certificates of Incorporation and Bylaws to call a meeting of
its stockholders, to be held at the earliest practicable date, to consider and
vote on a proposal to approve this Agreement, the Merger and the transactions
contemplated hereby and thereby, will submit the same to its stockholders with a
recommendation for approval by the Board of Directors of the Company or Parent,
as the case may be, and will solicit the approval thereof by such stockholders
by mailing or delivering to each of the stockholders a Proxy
Statement/Prospectus as provided for below.

          6.5.   REGISTRATION STATEMENT; PROXY STATEMENT.  Parent and the
Company shall cooperate and promptly prepare, and Parent shall file with the SEC
as soon as practicable, a Registration Statement on Form S-4 ("Form S-4") under
the Securities Act, with respect to the Parent Common Stock issuable in the
Merger, a portion of which shall serve as the proxy statement with respect to
the meetings of stockholders of the Company and Parent (the "Proxy
Statement/Prospectus").  The respective parties will cause the Proxy
Statement/Prospectus and the Form S-4 to comply as to form in all material
respects with the applicable provisions of the Securities Act, the Exchange Act
and the rules and regulations thereunder.  If at any time prior to the
stockholders' meetings referred to in Section 6.4 of this Agreement, any event
should occur relating to Parent or the Company which should be set forth in an
amendment of, or a supplement to, the Form S-4, the affected party will inform
the other and the Company and Parent shall promptly prepare, file and mail such
amendment or supplement; provided, no such amendment or supplement shall be
filed or mailed

                                      30
<PAGE>
 
until approved by Parent and the Company and their respective counsel.  Parent
shall use all reasonable efforts, and the Company will cooperate with Parent, to
have the Form S-4 declared effective by the SEC as promptly as practicable.
Parent shall use its best efforts to obtain, prior to the effective date of the
Form S-4 all necessary state securities law or "Blue Sky" permits or approvals
required to carry out the transactions contemplated by this Agreement and will
pay all expenses incident thereto.

          6.6.   AGREEMENTS BY AFFILIATED STOCKHOLDERS OF THE COMPANY.  The
Company shall use all reasonable efforts to deliver or cause to be delivered to
Parent, at least 20 days prior to the Closing Date, from each of the Rule 145
Affiliates of the Company, an Affiliate Letter in a form reasonably acceptable
to the Company to the effect that such person will not offer to sell, sell or
otherwise dispose of any shares of the Parent Common Stock issued in the Merger
except pursuant to an effective registration statement or in compliance with
Rule 145, as amended from time to time, or in a transaction which, in the
opinion of legal counsel reasonably satisfactory to Parent, is exempt from the
registration requirements of the Securities Act.  Parent shall be entitled to
place legends as specified in such Rule 145 Affiliate Letters on the certificate
evidencing any Parent Common Stock to be received by such Rule 145 Affiliates
pursuant to the terms of this Agreement, and to issue appropriate stop transfer
instructions to the transfer agent for the Parent Common Stock, consistent with
the terms of such Affiliate Letters.

          6.7.   EXPENSES.  Whether or not the Merger is consummated, all costs
and expenses incurred in connection with this Agreement and the transactions
contemplated hereby shall be paid by the party incurring such expenses except as
expressly provided herein and except that (a) the filing fee in connection with
the Hart Scott Act filing (if applicable), (b) the filing fee in connection with
the filing of the Form S-4 or Proxy Statement/Prospectus with the SEC and (c)
the expenses incurred in connection with printing and mailing the Form S-4 and
the Proxy Statement/Prospectus, shall be shared equally by the Company and
Parent.

          6.8.   REORGANIZATION.  From and after the date hereof and until the
Effective Time, neither Parent nor the Company nor any of their respective
Subsidiaries or other Affiliates shall (i) knowingly take any action, or
knowingly fail to take any action, that would jeopardize qualification of the
Merger as a reorganization with the meaning of Section 368(a) of the Code; or
(ii) enter into any contract, agreement, commitment or arrangement with respect
to the foregoing.

          6.9.   FILINGS; OTHER ACTION.  Subject to the terms and conditions
herein provided, the Company and Parent shall (a) promptly make their respective
filing and thereafter make any other required submissions under the Hart Scott
Act with respect to the Merger; (b) use all reasonable efforts to cooperate with
one


                                      31
<PAGE>
 
another in (i) determining which filings are required to be made prior to the
Effective Time with, and which consents, approvals, permits or authorizations
are required to be obtained prior to the Effective Time from states and foreign
jurisdictions in connection with the execution and delivery of this Agreement
and the consummation of the transactions contemplated hereby and (ii) timely
making all such filings and timely seeking all such consents, approvals, permits
or authorizations; and (c) use all reasonable efforts to take, or cause to be
taken, all other action and do, or cause to be done, all other things necessary,
proper or appropriate to consummate and make effective the transactions
contemplated by this Agreement.  If, at any time after the Effective Time, any
further action is necessary or desirable to carry out the purpose of this
Agreement, the proper officers and directors of Parent and the Company shall
take all such necessary action.

          6.10.  PUBLICITY.  The initial press release relating to this
Agreement shall be a joint press release in a form mutually agreeable to Parent
and the Company and the Parent and the Company shall, subject to their
respective legal obligations of public companies, use reasonable efforts to
agree upon the text of any other press release before issuing any such press
release or otherwise making public statements with respect to the transactions
contemplated hereby and in making any filings with any federal or state
governmental or regulatory agency or with any national securities exchange with
respect thereto.

          6.11.  ACQUISITION PROPOSALS.  Prior to the Effective Time, the
Company agrees (a) that neither it nor any of its Subsidiaries shall, and it
shall direct and use its best efforts to cause its officers, directors,
employees, agents and representatives (including, without limitation, any
investment banker, attorney or accountant retained by it or any of its
Subsidiaries) not to, initiate, solicit or encourage, directly or indirectly,
any inquiries or the making or implementation of any proposal or offer
(including, without limitation, any proposal or offer to its Stockholders) with
respect to a merger, acquisition, consolidation or similar transaction
involving, or any purchase of all or any significant portion of the assets or
any equity securities of, the Company or any of its Subsidiaries (any such
proposal or offer being hereinafter referred to as an "Acquisition Proposal") or
engage in any negotiations concerning, or provide any confidential information
or data to, or have any discussions with, any person relating to an Acquisition
Proposal, or otherwise facilitate any effort or attempt to make or implement an
Acquisition Proposal; (b) that it will immediately cease and cause to be
terminated any existing activities, discussions or negotiations with any parties
conducted heretofore with respect to any of the foregoing and will take the
necessary steps to inform the individuals or entities referred to above of the
obligations undertaken in this Section 6.11; and (c) that it will notify Parent
immediately if any such inquiries or proposals are received by, any

                                      32
<PAGE>
 
such information is received from, or any such negotiations or discussions are
sought to be initiated or continued with, it; provided, however, that nothing
                                              --------  -------              
contained in this Section 6.11 shall prohibit the Board of Directors of the
Company from (i) furnishing information to or entering into discussions or
negotiations with, any person or entity that makes an unsolicited bona fide
proposal to acquire the Company pursuant to a merger, consolidation, share
exchange, purchase of a substantial portion of the assets, business combination
or other similar transaction, if, and only to the extent that (A) the Board of
Directors determines in good faith that such action is required for the Board of
Directors to comply with its fiduciary duties to stockholders imposed by law,
(B) the Board of Directors has received a legal opinion from Haythe & Curley
that such action is required for the Board of Directors to comply with its
fiduciary duties to stockholders imposed by law, (C) prior to furnishing such
information to, or entering into discussions or negotiations with, such person
or entity, the Company provides written notice to Parent to the effect that it
is furnishing information to, or entering into discussions or negotiations with,
such person or entity, and (D) subject to any confidentiality agreement with
such person or entity (which such party determined in good faith was required to
be executed in order for the Board of Directors to comply with its fiduciary
duties to stockholders imposed by law), the Company keeps Parent informed of the
status (not the terms) of any such discussions or negotiations; and (ii) to the
extent applicable, complying with Rule 14e-2 promulgated under the Exchange Act
with regard to an Acquisition Proposal.  Nothing in this Section 6.11 shall (x)
permit any party to terminate this Agreement (except as specifically provided in
Section 6.11 hereof), (y) permit any party to enter into any agreement with
respect to an Acquisition Proposal during the term of this Agreement (it being
agreed that during the term of this Agreement, no party shall enter into any
agreement with any person that provides for, or in any way facilitates, an
Acquisition Proposal (other than a confidentiality agreement in customary
form)), or (z) affect any other obligation of any party under this Agreement.
If, following any Acquisition Proposal, the Company subsequently effects any
merger, acquisition, consolidation or similar transaction involving, or any
purchase of all or any significant portion of the assets or any equity
securities of, the Company or any of its Subsidiaries, or this Agreement is
thereafter terminated, the Company shall pay Parent an amount equal to $3.5
million.

          6.12.  INDEMNIFICATION.  From and after the Effective Time, Parent
shall cause the Surviving Corporation to, and the Surviving Corporation shall,
include as part of its Certificate of Incorporation and Bylaws provisions
relating to the indemnification of all current and former directors, officers,
employees and agents of the Company which are substantially similar to the
provisions contained in the Company's Certificate of Incorporation and Bylaws.
Such provisions shall not be amended, repealed or otherwise modified after the
Effective Time in any manner that would

                                      33
<PAGE>
 
adversely affect the rights thereunder of individuals who at any time prior to
the Effective Time were directors, officers, employees or agents of the Company
in respect to actions or omissions occurring at or prior to the Effective Time
(including, without limitation, actions or omissions which occur in connection
with the transactions contemplated by this Agreement), unless such modification
is required by law.

     7.   CONDITIONS TO EACH PARTY'S OBLIGATION TO EFFECT THE MERGER.  The
          ----------------------------------------------------------      
respective obligations of each party to effect the Merger shall be subject to
the fulfillment at or prior to the Effective Time of the following conditions:

          7.1.   STOCKHOLDER APPROVAL.  This Agreement shall have been approved
and adopted by the requisite vote or written consent of the stockholders of
Parent and the Company.

          7.2.   HART SCOTT ACT.  The waiting period (and any extension
thereof), if any, applicable to the consummation of the Merger under the Hart
Scott Act shall have expired or have been terminated.

          7.3.   NO LEGAL ACTION.  No preliminary or permanent injunction or
other order, decree or ruling issued by any court of competent jurisdiction, or
by any governmental, administrative or regulatory agency or commission, in the
United States preventing the consummation of the Merger shall be in effect.

          7.4.   REGISTRATION STATEMENT EFFECTIVE.  The Registration Statement
on Form S-4 shall have become effective and shall not be subject to a "stop
order," and no action, suit, proceeding or investigation by the SEC to suspend
the effectiveness thereof shall have been initiated and be continuing, or shall
have been threatened and be unresolved.

          7.5.   LISTING OF ADDITIONAL SHARES ON NMS.  The shares of Parent
Common Stock issued in connection with the Merger shall have been approved for
listing on NMS.

          7.6.   TAX OPINION.  The Company and Parent shall have each received
an opinion from their respective counsel, dated the Effective Date, to the
effect that the Merger will be treated for Federal income tax purposes as a
reorganization within the meaning of Section 368(a) of the Code, and that the
Company will be a party to that reorganization within the meaning of Section
368(b) of the Code.

          7.7.   TRADING ACTIVITY.  There shall not have occurred and be
continuing at any time within 30 days prior to the proposed Effective Date (i)
any suspension in trading on Nasdaq, any fixing of minimum or maximum prices for
trading, or maximum ranges for prices for securities on Nasdaq by the NASD or by
the SEC or any other governmental authority having jurisdiction, (ii) the

                                      34
<PAGE>
 
declaration of a banking moratorium by federal or California authorities, (iii)
any suspension of payments in respect of banks in the United States, (iv) an
outbreak or major escalation of hostilities between the United States and any
foreign power or of any other insurrection or armed conflict involving the
United States, (v) any limitation, whether or not mandatory, by any governmental
authority on, or any event which might affect the extension of, credit by banks
or other financial institutions, or (vi) in the case of any of the foregoing
existing on the date hereof a material acceleration or worsening thereof.

     8.   ADDITIONAL CONDITIONS TO OBLIGATIONS OF THE PARENT.  All obligations
          --------------------------------------------------                  
of Parent under this Agreement are subject to the fulfillment at or prior to the
Closing of the following additional conditions, any of which may be waived in
writing in whole or in part by Parent:

          8.1.   REPRESENTATIONS, COVENANTS, CERTIFICATE.  The Company shall
have performed in all material respects its agreements contained in this
Agreement required to be performed on or prior to the Effective Time, and the
representations and warranties of the Company herein contained shall be true in
all material respects as of the date of this Agreement and the Effective Time.

          8.2.   PERMITS AND APPROVALS.  All material filings, registrations,
covenants, permits, authorizations and regulatory approvals of governmental
authorities necessary for the consummation of the Merger shall have been duly
obtained or made and shall be in full force and effect.

          8.3.   NO ADVERSE CHANGE.  There shall not have occurred any change in
the financial condition, business or operations of the Company and its
subsidiaries that would have or would be reasonably likely to have a Material
Adverse Effect on the Company.

          8.4.   CERTAIN LEGAL MATTERS.  There shall not have been any statute,
rule, regulation or order promulgated, enacted, entered, enforced or deemed
applicable to the Merger by any United States federal or state government or
governmental authority, nor shall there be in effect an order or judgment
entered by any United States federal or state court, which (i) would make the
consummation of the Merger illegal or would materially delay the Effective Time,
(ii) would require the divestiture by Parent, the Company or any of their
respective Subsidiaries of any of the shares of Company Common Stock or of a
material portion of the business, assets, or property of either Parent or any of
its Subsidiaries, or of the Company or any of its Subsidiaries, or impose any
material limitation on the ability of any of them to conduct their respective
businesses and own their respective assets or property, or (iii) impose any
limitations on the ability of

                                      35
<PAGE>
 
Parent, directly or indirectly, to control in any material respect the business
or operations of the Company, or any of its Subsidiaries.

          8.5.   CERTIFICATE.  Parent shall have received a certificate of the
Company dated the Effective Time, signed by a senior officer of the Company,
certifying that (i) all representations and warranties of the Company were true
and correct in all material respects when made and are true and correct in all
material respects on the Effective Time as if made on the Effective Time, and
(ii) the Company has performed and complied in all material respects with all
covenants and agreements required in this Agreement to be performed or complied
with by it on or prior to the Effective Time.

          8.6.   OPINION OF COUNSEL FOR THE COMPANY.  Parent shall have received
from Messrs. Haythe & Curley, counsel for the Company herein, an opinion, dated
the Effective Time, in form and substance customary in transactions of the type
contemplated by this Agreement.

          8.7.   COMFORT LETTER.  Parent shall have received a "comfort" letter
from Price Waterhouse LLP, independent public accountants for the Company, of
the kind contemplated by the Statement of Auditing Standards with respect to
Letters to Underwriters promulgated by the American Institute of Certified
Public Accountants (the "AICPA Statement"), dated the Effective Time, in form
and substance reasonably satisfactory to Parent in connection with the
procedures undertaken by it with respect to the financial statements and other
financial information of the Company and its Subsidiaries contained in the Proxy
Statement/Prospectus and Form S-4 and the other matters contemplated by the
AICPA Statement and customarily included in comfort letters relating to
transactions similar to the Merger.

          8.8.   RULE 145 AFFILIATES.  Parent shall have received from each
"affiliate" of the Company, as such term is defined and used in SEC Rule 145
("Rule 145 Affiliates"), a written undertaking signed by such Rule 145 Affiliate
contemplated by Section 6.6 hereof.

          8.9.   AGREEMENTS WITH CERTAIN STOCKHOLDERS.  Prior to the Closing
Date, Parent shall have received an agreement in a form reasonably satisfactory
to it executed by the Principal Stockholders to the effect that each such Person
shall not sell, transfer or otherwise dispose of the shares of Parent Common
Stock received in the Merger with respect to the Restricted Shares for a period
ending on April 30, 1997; provided, that, 33% of such shares of Parent Common
Stock issued to each Principal Stockholder shall be free of such restriction on
November 1, 1996 and the remaining shares shall be free of such restriction on
May 1, 1997, and (ii) each such Person shall grant a proxy to Parent to vote
such shares of Parent Common Stock for those Persons from time to time


                                      36
<PAGE>
 
nominated for election by the Board of Directors (which proxy shall terminate
upon transfer of such shares to the public).

     9.   ADDITIONAL CONDITIONS TO THE OBLIGATIONS OF THE COMPANY.  All
          -------------------------------------------------------      
obligations of the Company under this Agreement are subject to the fulfillment
at or prior to the Closing of the following additional conditions, any of which
may be waived in writing, in whole or in part, by the Company:

          9.1.   REPRESENTATIONS, COVENANTS, CERTIFICATE.  Parent and Sub shall
have performed in all material respects their respective agreements contained in
this Agreement required to be performed on or prior to the Effective Time, and
the representations and warranties of Parent and Sub herein contained shall be
true and correct in all material respects as of the date of this Agreement and
the Effective Time with the same effect as though made at the Effective Time.

          9.2.   CERTAIN LEGAL MATTERS.  There shall not have been any statute,
rule, regulation or order promulgated, enacted, entered, enforced or deemed
applicable to the Merger by any United States federal or state government or
governmental authority, nor shall there be in effect an order or judgment
entered by any United States federal or state court, which would make the
consummation of the Merger illegal or would delay the Effective Time beyond the
period set forth in Section 10.1.(d).

          9.3.   CERTIFICATE.  The Company shall have received a certificate of
Parent dated the Effective Time, signed by a senior officer of Parent,
certifying that (i) all representations and warranties of Parent were true and
correct in all material respects when made and are true and correct in all
material respects on the Effective Time as if made on the Effective Time, and
(ii) Parent has performed and complied in all material respects with all
covenants and agreements required in this Agreement to be performed or complied
with by it on or prior to the Effective Time.

          9.4.   OPINION OF COUNSEL FOR PARENT AND SUB.  The Company shall have
received from Messrs. Troop Meisinger Steuber & Pasich, LLP, counsel for Parent
and Sub, an opinion dated the Effective Time, in form and substance as is
customary in transactions of the type contemplated by this Agreement.

     10.  TERMINATION.
          ----------- 

          10.1.  TERMINATION.  This Agreement may be terminated at any time
prior to the Effective Time, notwithstanding the approval thereof by the
stockholders of Company or Parent:

                 (a) By the Parent, if any material condition to the obligations
of Parent set forth in Section 7 or 8 is not substantially satisfied at the
time or times contemplated thereby and such condition is not waived by Parent
or, by the Company, if

                                      37
<PAGE>
 
any material condition to the obligations of the Company set forth in Section 7
or 9 is not substantially satisfied at the time or times contemplated thereby
and such condition is not waived by the Company. Each party's right to terminate
under this Section 10.1.(a) shall relate only to conditions to that party's
obligations;

                 (b) By the Company, upon a breach of any representation,
warranty, covenant or agreement on the part of Parent or Sub set forth in this
Agreement such that the conditions to the obligations of the Company set forth
herein would not be satisfied; provided, however, if such breach is curable
prior to September 1, 1996 by Parent or Sub through the exercise of reasonable
efforts, then so long as Parent or Sub, as the case may be, is exercising such
reasonable efforts, the Company may not terminate this Agreement pursuant to
this Section;

                 (c) By the Parent, upon a breach of any representation,
warranty, covenant or agreement on the part of the Company set forth in this
Agreement such that the conditions to the obligations of Parent set forth herein
would not be satisfied; provided, however, if such breach is curable prior to
September 1, 1996 by the Company through the exercise of reasonable efforts,
then so long as the Company is exercising such reasonable efforts, Parent may
not terminate this Agreement pursuant to this Section;

                 (d) By either Parent or the Company if the Merger shall not
have been consummated on or before September 1, 1996;

                 (e) By either Parent or the Company if a court of competent
jurisdiction or governmental, regulatory or administra-tive agency or commission
shall have issued a non-appealable final order, degree or ruling or taken any
other action, in each case having the effect of permanently restraining,
enjoining or otherwise prohibiting the Merger;

                 (f) By either Parent or the Company if, at either of their
respective stockholders' meetings, the requisite vote of the stockholders of the
Company or Parent, respectively, is not obtained;

                 (g) By either Parent or the Company if the Average Price is
equal to or less than $18.50; or

                 (h) By mutual written consent of the Company and Parent
authorized by their respective Boards of Directors.

          10.2.  EFFECT OF TERMINATION.  If this Agreement is terminated
pursuant to Section 10.1, this Agreement shall become void and of no effect with
no liability on the part of any party hereto, except that (a) the agreements
contained in Section 6.7 and the last sentence of Section 6.3 shall survive the
termination hereof and (b) if termination of this Agreement shall be judicially

                                      38
<PAGE>
 
determined to have been caused by willful breach of this Agreement, then, in
addition to other remedies at law or equity for breach of this Agreement, the
party so found to have willfully breached this Agreement shall indemnify the
other parties for their respective costs, fees and expenses of their counsel,
accountants and other experts and advisors as well as fees and expenses incident
to negotiation, preparation and execution of this Agreement and related
documentation and their stockholders' meetings and consents.

     11.  MISCELLANEOUS PROVISIONS.
          ------------------------ 

          11.1.  NOTICES.  All notices, demands or other communications
hereunder shall be in writing and shall be deemed to have been duly given if (i)
delivered in person, on the date actually given, (ii) by United States mail,
certified or registered, with return receipt requested, on the date which is two
business days after the date of mailing, or (iii) if sent by telex or facsimile
transmission, with a copy mailed on the same day in the manner provided in (ii)
above, on the date transmitted provided receipt is confirmed by telephone:

                 (a)  if to the Parent to:
                      Veterinary Centers of America, Inc.
                      3420 Ocean Park Boulevard
                      Santa Monica, California 90405
                      Attention:  Robert L. Antin
                      Telecopy No.:  (310) 392-7464

                      With copies to:
                      Troop Meisinger Steuber & Pasich, LLP
                      10940 Wilshire Boulevard
                      Suite 800
                      Los Angeles, California 90024
                      Attention: C.N. Franklin Reddick III, Esq.
                      Telecopy No.: (310) 443-8512

                 (b)  if to the Company to:
                      The Pet Practice, Inc.
                      1018 West Ninth Avenue
                      King of Prussia, Pennsylvania 19406
                      Attention:  Peter J. Cohen
                      Telecopy No.:  (610) 992-0492

                      With copies to:
                      Haythe & Curley
                      237 Park Avenue
                      New York, New York 10017
                      Attention:  Andrew J. Beck, Esq.
                      Telecopy No.: (212) 682-0200

or at such other address as may have been furnished by such Person in writing to
the other parties.

                                      39
<PAGE>
 
          11.2.  SEVERABILITY.  Should any Section or any part of a Section
within this Agreement be rendered void, invalid or unenforceable by any court of
law for any reason, such invalidity or unenforceability shall not void or render
invalid or unenforceable any other Section or part of a Section in this
Agreement.

          11.3.  EXHIBITS AND SCHEDULES.  Each Exhibit and Schedule delivered
pursuant to the terms of this Agreement and each document, instrument and
certificate delivered by the parties in connection with the transactions
contemplated hereby constitutes an integral part of this Agreement.

          11.4.  GOVERNING LAW.  THIS AGREEMENT SHALL BE GOVERNED BY AND
CONSTRUED BOTH AS TO VALIDITY AND PERFORMANCE AND ENFORCED IN ACCORDANCE WITH
THE LAWS OF THE STATE OF DELAWARE, WITHOUT GIVING EFFECT TO THE CHOICE OF LAW
PRINCIPLES THEREOF.

          11.5.  NO ADVERSE CONSTRUCTION.  The rule that a contract is to be
construed against the party drafting the contract is hereby waived, and shall
have no applicability in construing this Agreement or any provisions hereof.

          11.6.  COUNTERPARTS.  This Agreement may be executed in one or more
counterparts, each of which shall be deemed an original but all of which
together shall constitute one and the same instrument.

          11.7.  COSTS AND ATTORNEYS' FEES.  In the event that any action, suit,
or other proceeding is instituted concerning or arising out of this Agreement,
the prevailing party shall recover all of such party's costs, and reasonable
attorneys' fees incurred in each and every such action, suit, or other
proceeding, including any and all appeals or petitions therefrom.

          11.8.  SUCCESSORS AND ASSIGNS.  All rights, covenants and agreements
of the parties contained in this Agreement shall, except as otherwise provided
herein, be binding upon and inure to the benefit of their respective successors
and assigns.

          11.9.  AMENDMENT.  This Agreement may be amended by the parties
hereto, by action taken by their respective Boards of Directors at any time
before or after approval hereof by the Stockholders, but after any such
approval, no amendment shall be made which changes the Exchange Factor, or which
is otherwise not permitted by the Delaware Law, without the further approval of
the Stockholders.  This Agreement may not be amended except by an instrument in
writing signed on behalf of each of the parties hereto.

                                      40
<PAGE>
 
          11.10. WAIVER.  At any time prior to the Effective Time, any party
hereto, by action taken by its Board of Directors, at any time before or after
approval hereof by the Stockholders of the Company, may (i) extend the time for
the performance of any of the obligations or other acts of the other parties
hereto, (ii) waive any inaccuracies in the representations and warranties of the
other parties contained herein or in any document delivered pursuant hereto, and
(iii) waive compliance with any of the agreements or conditions contained
herein.  Any agreement on the part of a party hereto shall be valid if set forth
in an instrument in writing signed on behalf of such party by a duly authorized
officer.

          11.11. ENTIRE AGREEMENT.  This Agreement, the attached Exhibits and
Schedules, the other schedules referred to in this Agreement and the
Confidentiality Agreement contain the entire understanding of the parties and
there are no further or other agreements or understandings, written or oral, in
effect between the parties relating to the subject matter hereof unless
expressly referred to herein.

          11.12. BEST EFFORTS.  Subject to the terms and conditions of this
Agreement, each party will use its best efforts to take, or cause to be taken,
all actions and do, or cause to be done, all things necessary, proper or
advisable under applicable laws and regulations to consummate the transactions
contemplated by this Agreement.

          11.13. SURVIVAL OF REPRESENTATIONS AND WARRANTIES.  The
representations, warranties, covenants and agreements contained herein and in
any certificate or other writing delivered pursuant hereto shall not survive the
Effective Time, except Sections 2 and 6.12


                                      41
<PAGE>
 
          IN WITNESS WHEREOF, the parties hereto have executed and delivered
this Agreement as of the date first above written.

                                VETERINARY CENTERS OF AMERICA, INC.
                                A DELAWARE CORPORATION



                                By:______________________________
                                   Name:
                                   Title:


                                THE PET PRACTICE, INC.
                                A DELAWARE CORPORATION


                                By:______________________________
                                   Name:
                                   Title:


                                GOLDEN MERGER CORPORATION
                                A DELAWARE CORPORATION


                                By:______________________________
                                   Name:
                                   Title:

                                      42
<PAGE>
 
                                PROJECT MILKBONE


<TABLE>
<S>                              <C>        <C>        <C>        <C>        <C>        <C>        <C>
Golden Stock Price               $ 18.50    $ 19.00    $ 20.00    $ 21.00    $ 22.00    $ 23.00    $ 24.00
Lab Stock Price                  $ 7.816    $ 7.980    $ 8.300    $ 8.610    $ 8.910    $ 9.200    $ 9.480
Exchange Ratio                    0.4225     0.4200     0.4150     0.4100     0.4050     0.4000     0.3950
Lab Shares                           8.6        8.6        8.6        8.6        8.6        8.6        8.6
Golden Shares Issued                3.63       3.61       3.57       3.53       3.48       3.44       3.40
Transaction Value                $  67.2    $  68.6    $  71.4    $  74.0    $  76.6    $  79.1    $  81.5

Golden Stock Price               $ 25.00    $ 26.00    $ 27.00    $ 28.00    $ 29.00    $ 30.00
Lab Stock Price                  $10.000    $10.000    $10.000    $10.000    $10.000    $10.000
Exchange Ratio                    0.4000     0.3846     0.3704     0.3571     0.3448     0.3333
Lab Shares                           8.6        8.6        8.6        8.6        8.6        8.6
Golden Shares Issued                3.44       3.31       3.19       3.07       2.97       2.87
Transaction Value                $  86.0    $  86.0    $  86.0    $  86.0    $  86.0    $  86.0

Golden Stock Price               $ 31.00    $ 32.00    $ 33.00    $ 34.00    $ 35.00
Lab Stock Price                  $10.385    $10.560    $10.725    $10.880    $11.025
Exchange Ratio                    0.3350     0.3300     0.3250     0.3200     0.3150
Lab Shares                           8.6        8.6        8.6        8.6        8.6
Golden Shares Issued                2.86       2.84       2.80       2.75       2.71
Transaction Value                $  89.3    $  90.8    $  92.2    $  93.6    $  94.8
</TABLE> 

- ----------------------------

(i)   Mutual out at a Golden price per share of $18.50
(ii)  Below Golden price per share of $18.50, the exchange ratio is fixed at
      0.4225.
(iii) Between price points the exchange ratio will be interpolated
      proportionately.
(iv)  Over Golden price per share of $49.00, the exchange ratio is equal to
      $12.005 and the Average Price.

                                      43
<PAGE>
 
                                                                      APPENDIX B

                       [LETTERHEAD OF NATWEST MARKETS]




March 21, 1996



Board of Directors
Veterinary Centers of America, Inc.
3420 Ocean Park Boulevard, Suite 1000
Santa Monica,  CA  90405

Gentlemen:

     You have requested our opinion as to the fairness, to Veterinary Centers 
of America, Inc. (the "Company"), from a financial point of view, of the 
consideration to be paid by the Company pursuant to the Agreement and Plan of 
Merger among the Company, Golden Merger Corporation, a wholly-owned subsidiary 
of the Company (the "Subsidiary"), and The Pet Practice, Inc. ("Pet Practice"), 
dated as of March 21, 1996 (the "Merger Agreement"), pursuant to which Pet 
Practice is to be merged into the Subsidiary. The terms and conditions of the 
foregoing transaction (the "Merger") are more fully set forth in the Merger 
Agreement.

     In arriving at our opinion, we have: (1) reviewed the Merger Agreement; (2)
reviewed historical financial and operating data of the Company and Pet
Practice; (3) reviewed financial and operating forecasts with respect to Pet
Practice provided to us by management representatives of the Company; (4)
considered public information of selected comparable companies, and compared Pet
Practice, from a financial point of view, with such companies; (5) considered
the terms, to the extent publicly available, of selected transactions comparable
to the Merger and compared the consideration to be paid by the Company with the
consideration involved in such transactions; (6) reviewed market price data and
trading activities for Pet Practice common stock; and (7) conducted such other
financial studies, analyses and investigations as we deemed appropriate. We also
held discussions with management representatives and representatives of the
independent accountants of the Company and Pet Practice concerning the business
and prospects of Pet Practice and the strategic and operating benefits
anticipated by the Company to be derived from the Merger.

     We were not engaged to independently verify the accuracy or completeness of
any information which, we reviewed in arriving at our opinion. We relied upon
the accuracy and completeness of all such information, without independent
verification.

<PAGE>

     With respect to the financial and operating forecasts provided to us, we 
assumed, with your approval, that such forecasts were reasonably prepared on 
bases reflecting the best currently available estimates and good faith judgments
of the management of the Company as to the future financial and operating 
performance of Pet Practice, consistent with historical data. We also assumed, 
with your approval, that a reasonable likelihood exists that the strategic and 
operating benefits anticipated by the Company to be derived from the Merger will
be realized.

    We were not engaged to conduct a physical inspection of any properties or 
make an independent valuation or appraisal of any assets or liabilities of Pet 
Practice and we were not furnished with any such valuations or appraisals. We 
were not engaged to review any legal, accounting or tax aspects of the Merger.

    Our opinion herein is based on our assessment of economic, market, 
regulatory and other conditions as they exist and can be evaluated on the date 
of this letter.  Our opinion herein is provided solely for your use in your 
evaluation of the Merger and is not intended to confer rights or remedies upon 
any stockholders of the Company or any other persons.

    National Westminster Bank Plc, New York Branch ("NatWest Markets"), and its
affiliates, as part of their investment banking services, are regularly engaged 
in the valuation of businesses and securities in connection with mergers, 
acquisitions, sales and distributions of listed and unlisted securities, private
placements and valuations for corporate and other purposes.  NatWest Markets 
will receive a fee for rendering this opinion.  In the ordinary course of 
business, our affiliates actively trade the securities of the Company and Pet 
Practice for their own account and the accounts of their customers and, 
accordingly, may at any time hold a long or short position in such securities.  
We may provide investment banking and financial advisory services to the Company
in the future.

    It is understood that except as required by law, this letter may not be 
quoted or referred to in any filing, report, document, release or other 
communication, whether written or oral, made, prepared, issued or transmitted by
the Company without our prior written consent, which will not be unreasonably 
withheld.

    On the basis of and subject to the matters set forth herein, we are of the
opinion that, as of the date hereof, the consideration to be paid by the Company
pursuant to the Merger Agreement is fair to the Company, from a financial point
of view.

                                        Very truly yours,

                                        
                                        /s/ National Westminster Bank Plc
    
                                        National Westminster Bank Plc
                                        New York Branch
<PAGE>

                                                                      APPENDIX C


                         [LETTERHEAD OF SMITH BARNEY]

 
March 21, 1996

The Board of Directors
The Pet Practice, Inc.
1018 West Ninth Avenue
King of Prussia, Pennsylvania 19406

Members of the Board:

You have requested our opinion as to the fairness, from a financial point of
view, to the holders of the common stock of The Pet Practice, Inc. ("PPI") of
the consideration to be received by such holders pursuant to the terms and
subject to the conditions set forth in the Agreement and Plan of Reorganization,
dated as of March 21, 1996 (the "Agreement"), by and among PPI, Veterinary
Centers of America, Inc. ("VCAI") and Golden Merger Sub, a wholly owned
subsidiary of VCAI ("Sub"). As more fully described in the Agreement, (i) PPI
will be merged with and into Sub (the "Merger") and (ii) each outstanding share
of the common stock, par value $0.01 per share, of PPI (the "PPI Common Stock")
will be converted into the right to receive that number of shares of the common
stock, par value $0.001 per share, of VCAI (the "VCAI Common Stock") equal to
the Exchange Ratio, as described below.

As described in the Agreement, the Exchange Ratio will be determined as follows:
(i) if the average of the closing prices of VCAI Common Stock on the NASDAQ
National Market over the 20 trading day period ending on (and including) the
third trading day immediately preceding the date of PPI's stockholders' meeting
in respect of the Merger (the "Average Price") is between $25.00 and $30.00
(inclusive), the Exchange Ratio will be determined by dividing $10.00 by the
Average Price, (ii) if the Average Price is between $24.00 and $19.00
(inclusive), the Exchange Ratio will be 0.3950 at $24.00 and increased 0.005 for
each whole dollar by which the Average Price is less than $24.00, (iii) if the
Average Price is $18.50 or less, the Exchange Ratio will be 0.4225, (iv) if the
Average Price is equal to or greater than $31.00 and less than $49.00, the
Exchange Ratio will be 0.3350 at $31.00 and reduced 0.005 for each whole dollar
by which the Average Price is greater than $31.00, (v) if the Average Price is
within the ranges described in clause (ii) and (iv) above, but the Average Price
is not a whole dollar, then the Exchange Ratio will be determined as that which
would have been computed at the nearest whole dollar increased or decreased (as
applicable) by an amount equal to 0.005 multiplied by a fraction, the numerator
of which will be the difference between the Average Price and such nearest whole
dollar, and the denominator of which will be $1.00, (vi) if the Average Price is
between $19.00 and $18.50 (exclusive), the Exchange Ratio will be 0.4200
increased by an amount equal to 0.0025 multiplied by a fraction, the numerator
of which is the difference between $19.00 and the Average Price and the
denominator of which is $0.50, (vii) if the Average Price is between $24.00 and
$25.00 (exclusive), the Exchange Ratio will be 0.3950 increased by an amount
equal to 0.005 multiplied by a fraction, the numerator of which is the
difference between the Average Price and $24.00 and the denominator of which is
$1.00, (viii) if the Average Price is between $30.00 and $31.00 (exclusive), the
Exchange Ratio will be 0.3333 increased by an amount equal to 0.0017 multiplied
by a fraction, the numerator of which is the difference between the Average
Price and $30.00 and the denominator of which is $1.00, and (ix) if the Average
Price is greater than $49.00, the Exchange Ratio will be determined by dividing
$12.005 by the Average Price.



<PAGE>
 
The Board of Directors
The Pet Practice, Inc.
March 21, 1996
Page 2


In arriving at our opinion, we reviewed the Agreement and held discussions with
certain senior officers, directors and other representatives and advisors of PPI
and certain senior officers and other representatives and advisors of VCAI
concerning the businesses, operations and prospects of PPI and VCAI. We examined
certain publicly available business and financial information relating to PPI
and VCAI as well as certain financial forecasts and other data for PPI and VCAI
which were provided to us or otherwise discussed with the respective managements
of PPI and VCAI, including information relating to certain strategic
implications and operational benefits anticipated to result from the Merger. We
reviewed the financial terms of the Merger as set forth in the Agreement in
relation to, among other things: current and historical market prices and
trading volumes of PPI Common Stock and VCAI Common Stock; the respective
companies' historical and projected earnings and operating data; and the
capitalization and financial condition of PPI and VCAI. We also considered, to
the extent publicly available, the financial terms of certain other similar
transactions recently effected which we considered relevant in evaluating the
Merger and analyzed certain financial, stock market and other publicly available
information relating to the businesses of other companies whose operations we
considered relevant in evaluating those of PPI and VCAI. We also evaluated the
potential pro forma financial impact of the Merger on VCAI. In addition to the
foregoing, we conducted such other analyses and examinations and considered such
other financial, economic and market criteria as we deemed appropriate in
arriving at our opinion.

In rendering our opinion, we have assumed and relied, without independent
verification, upon the accuracy and completeness of all financial and other
information publicly available or furnished to or otherwise reviewed by or
discussed with us. With respect to financial forecasts and other information and
data furnished to or otherwise reviewed by or discussed with us, we have been
advised by the managements of PPI and VCAI that such forecasts and other
information and data were reasonably prepared on bases reflecting the best
currently available estimates and judgments of the respective managements of PPI
and VCAI as to the future financial performance of PPI and VCAI and the
strategic implications and operational benefits anticipated to result from the
Merger. We have assumed, with your consent, that the Merger will be treated as a
tax-free reorganization for federal income tax purposes. Our opinion, as set
forth herein, relates to the relative values of PPI and VCAI. We are not
expressing any opinion as to what the value of the VCAI Common Stock actually
will be when issued to PPI stockholders pursuant to the Merger or the price at
which the VCAI Common Stock will trade subsequent to the Merger. We have not
made or been provided with an independent evaluation or appraisal of the assets
or liabilities (contingent or otherwise) of PPI or VCAI nor have we made any
physical inspection of the properties or assets of PPI or VCAI. We were not
asked to consider, and our opinion does not address, the relative merits of the
Merger as compared to any alternative business strategies that might exist for
PPI or the effect of any other transaction in which PPI might engage. Our
opinion is necessarily based upon information available to us, and financial,
stock market and other conditions and circumstances existing and disclosed to
us, as of the date hereof.

Smith Barney has been engaged to render financial advisory services to PPI in
connection with the Merger and will receive a fee for our services, a
significant portion of which is contingent upon the consummation of the Merger.
We will also receive a fee upon the delivery of this opinion. In the ordinary
course of our business, we and our affiliates may actively trade or hold the
securities of PPI and VCAI for our own account or for the account of our
customers and, accordingly, may at any time hold a long or short position in
such securities. We have in the past provided certain investment banking
services to PPI unrelated to the proposed Merger, for which services we have
received
<PAGE>
 





The Board of Directors
The Pet Practice, Inc.
March 21, 1996
Page 3


compensation.  In addition, Smith Barney and its affiliates (including Travelers
Group Inc. and its affiliates) may maintain relationships with PPI, VCAI and 
their respective affiliates.

Our advisory services and the opinion expressed herein are provided for the 
information of the Board of Directors of PPI in its evaluation of the proposed 
Merger, and our opinion is not intended to be and does not constitute a 
recommendation to any stockholder as to how such stockholder should vote on the 
proposed Merger.  Our opinion may not be published or otherwise used or referred
to, nor shall any public reference to Smith Barney be made, without our prior 
written consent.

Based upon and subject to the foregoing, our experience as investment bankers, 
our work as described above and other factors we deemed relevant, we are of the 
opinion that, as of the date hereof, the Exchange Ratio is fair, from a 
financial point of view, to the holders of PPI Common Stock.

Very truly yours,

 
/s/SMITH BARNEY INC.
- --------------------
   SMITH BARNEY INC.
<PAGE>
 
                                                                      APPENDIX D

                      VETERINARY CENTERS OF AMERICA, INC.

                           1996 STOCK INCENTIVE PLAN

                                   ARTICLE 1

                            GENERAL PURPOSE OF PLAN

     The name of this plan is the Veterinary Centers of America, Inc. 1996 Stock
Incentive Plan (the "Plan"). The purpose of the Plan is to enable Veterinary
Centers of America, Inc., a Delaware corporation (the "Company"), and any Parent
or any Subsidiary to obtain and retain the services of the types of employees,
consultants, officers and Directors who will contribute to the Company's long
range success and to provide incentives which are linked directly to increases
in share value which will inure to the benefit of all shareholders of the
Company.

                                   ARTICLE 2

                                  DEFINITIONS

     For purposes of the Plan, the following terms shall be defined as set forth
below:

     "Board" means the Board of Directors of the Company.

     "Code" means the Internal Revenue Code of 1986, as amended from time to
time, or any successor thereto.

     "Committee" means a committee of the Board designated by the Board to
administer the Plan and composed of not less than the minimum number of persons
from time to time required both by the Rule and Section 162(m) of the Code, each
of whom is a Disinterested Person and an Outside Director.

     "Company" means Veterinary Centers of America, Inc., a corporation
organized under the laws of the State of Delaware (or any successor
corporation).

     "Date of Grant" means the date on which the Committee adopts a resolution
expressly granting Stock Options to a Participant, or if a different date is set
forth in such resolution as the Date of Grant, then such date as is set forth in
such resolution.

     "Director" means a member of the Board.

     "Disability" means permanent and total disability as defined by the
Committee.

     "Disinterested Person" shall have the meaning set forth in Rule 16b-
3(c)(2)(i) under the Exchange Act, or any successor definition adopted by the
SEC.

     "Election" shall have the meaning set forth in Section 10.3(d)(i) of the
Plan.

     "Eligible Person" means an employee, officer, consultant or, subject to the
limitations set forth in Article 5 of the Plan, Director of the Company, any
Parent or any Subsidiary.

     "Exchange Act" means the Securities Exchange Act of 1934, as amended.

     "Exercise Price" shall have the meaning set forth in Section 6.2(c) of the
Plan.
<PAGE>
 
     "Fair Market Value" per share at any date shall mean (i) if the Stock is
listed on an exchange or exchanges, or admitted for trading in a market system
which provides last sale data under Rule 11Aa3-1 of the General Rules and
Regulations of the SEC under the Exchange Act (a "Market System"), the last
reported sales price per share on the last business day prior to such date on
the principal exchange on which it is traded, or in a Market System, as
applicable, or if no sale was made on such day on such principal exchange or in
such a Market System, as applicable, the last reported sales price per share on
the most recent day prior to such date on which a sale was reported on such
exchange or such Market System, as applicable; or (ii) if the Stock is not then
traded on an exchange or in a Market System, the average of the closing bid and
asked prices per share for the Stock in the over-the-counter market as quoted on
NASDAQ on the day prior to such date; or (iii) if the Stock is not listed on an
exchange or quoted on NASDAQ, an amount determined in good faith by the
Committee.

     "Liquidating Event" shall have the meaning set forth in Section 8.1(b) of
the Plan.

     "Liquidity Event" means any Reorganization Event which the Committee
determines, in its sole and absolute discretion, to treat as such an event.

     "Incentive Stock Option" means a Stock Option intended to qualify as an
"incentive stock option" as that term is defined in Section 422 of the Code.

     "Non-Statutory Stock Option" means a Stock Option intended to not qualify
as an Incentive Stock Option.

     "Optionee" means a Participant who is granted a Stock Option pursuant to
the Plan.

     "Outside Director" means a Director who is not (a) a current employee of
the Company (or any related entity), (b) a former employee of the Company (or
any related entity) who is receiving compensation for prior services (other than
benefits under a tax-qualified retirement plan), (c) a former officer of the
Company (or any related entity), or (d) a consultant or person otherwise
receiving compensation or other remuneration, either directly or indirectly, in
any capacity other than as a Director.

     "Parent" means any present or future corporation which would be a "parent
corporation" as that term is defined in Section 424 of the Code.

     "Participant" means any Eligible Person selected by the Committee, pursuant
to the Committee's authority set forth in Article 3 of the Plan, to receive
grants of Stock Options.

     "Plan" means this Veterinary Centers of America, Inc. 1996 Stock Incentive
Plan, as the same may be amended or supplemented from time to time.

     "Reorganization Event" shall have the meaning set forth in Section 8.1(c)
of the Plan.

     "Retirement" means retirement from active employment with the Company or
any Parent or Subsidiary as defined by the Committee.

     "Rule" means Rule 16b-3 and any future rules promulgated in substitution
therefor under the Exchange Act.

     "SEC" means the Securities and Exchange Commission.

     "Section 16(b) Person" means a person subject to Section 16(b) of the
Exchange Act.

     "Stock" means the Common Stock, par value $.001 per share, of the Company.

                                       2
<PAGE>
 
     "Stock Option" means an option to purchase shares of Stock granted pursuant
to Article 6 of the Plan.

     "Stock Option Agreement" shall have the meaning set forth in Section 6.2 of
the Plan.

     "Subsidiary" means any present or future corporation which would be a
"subsidiary corporation" as that term is defined in Section 424 of the Code.

     "Tax Date" shall have the meaning set forth in Section 10.3(d)(iii) of the
Plan.

     "Ten Percent Shareholder" means a person who on the Date of Grant owns,
either directly or through attribution as provided in Section 424(d) of the
Code, Stock possessing more than 10% of the total combined voting power of all
classes of stock of the Company or of any Parent or Subsidiary.

     "Withholding Right" shall have the meaning set forth in Section 10.3(c) of
the Plan.

                                   ARTICLE 3

                                ADMINISTRATION

     SECTION 3.1  Committee.  The Plan shall be administered by the Committee.

     SECTION 3.2  Powers in General.  The Committee shall have the power and
authority to grant Stock Options to Eligible Persons, pursuant to the terms of
the Plan.

     SECTION 3.3  Specific Powers.  In particular, the Committee shall have the
authority: (i) to construe and interpret the Plan and apply its provisions; (ii)
to promulgate, amend and rescind rules and regulations relating to the
administration of the Plan; (iii) to authorize any person to execute, on behalf
of the Company, any instrument required to carry out the purposes of the Plan;
(iv) to determine when Stock Options are to be granted under the Plan; (v) from
time to time to select, subject to the limitations set forth in this Plan, those
Eligible Persons to whom Stock Options shall be granted; (vi) to determine the
number of shares of Stock to be made subject to each Stock Option; (vii) to
prescribe the terms and conditions of each Stock Option, including, without
limitation, the Exercise Price and medium of payment and vesting provisions, to
determine whether the Stock Option is to be an Incentive Stock Option or a Non-
Statutory Stock Option and to specify the provisions of the Stock Option
Agreement relating to such Stock Option; (viii) to amend any outstanding Stock
Options for the purpose of modifying the time or manner of vesting, the Exercise
Price, thereunder or otherwise, subject to applicable legal restrictions and to
the consent of the other party to such agreement; (ix) to determine when a
consultant's relationship with the Company is sufficient to constitute the
equivalent of employment with the Company for purposes of the Plan; (x) to
determine the duration and purpose of leaves of absences which may be granted to
a Participant without constituting termination of his or her employment for
purposes of the Plan; and (xi) to make any and all other determinations which it
determines to be necessary or advisable for administration of the Plan.

     SECTION 3.4  Decisions Final.  All decisions made by the Committee pursuant
to the provisions of the Plan shall be final and binding on the Company and the
Participants.

     SECTION 3.5  The Committee. The Board may, in its sole and absolute
discretion, from time to time delegate any or all of its duties and authority
with respect to the Plan to the Committee whose members are to be appointed by
and to serve at the pleasure of the Board. Once appointed, the Committee shall
continue to serve until otherwise directed by the Board. From time to time, the
Board may increase or decrease (to not less than the minimum number of persons
from time to time required by both the Rule and Section 162(m) of the Code) the
size of the Committee, add additional members to, remove members (with or
without cause) from, appoint new members in substitution therefor, and fill
vacancies, however caused, in the Committee. The Committee shall act pursuant

                                       3
<PAGE>
 
to a vote of the majority of its members or, in the case of a committee
comprised of only two members, the unanimous consent of its members, whether
present or not, or by the written consent of the majority of its members or, in
the case of a committee comprised of only two members, the unanimous written
consent of its members, and minutes shall be kept of all of its meetings and
copies thereof shall be provided to the Board. Subject to the limitations
prescribed by the Plan and the Board, the Committee may establish and follow
such rules and regulations for the conduct of its business as it may determine
to be advisable.

                                   ARTICLE 4

                             STOCK SUBJECT TO PLAN

     SECTION 4.1  Stock Subject to the Plan. Subject to adjustment as provided
in Article 8, the total number of shares of Stock reserved and available for
issuance under the Plan shall be 1,500,000 shares.

     SECTION 4.2  Unexercised Stock Options; Reacquired Shares. To the extent
that any Stock Options expire or are otherwise terminated without being
exercised, the shares of Stock underlying such Stock Options (and shares related
thereto) shall again be available for issuances in connection with future Stock
Options under the Plan. If and to the extent that the Company receives shares of
Stock in payment of all or a portion of the purchase price for any Stock, or in
payment of any tax liabilities, the receipt of such shares will not increase the
number of shares available for issuance under the Plan.

                                   ARTICLE 5

                                  ELIGIBILITY

     Outside Directors who are designated as Eligible Persons by the Board of
Directors, Outside Directors who are not so designated as Eligible Persons (but
only to the extent provided by Article 7 hereof), officers, employees and
consultants of the Company, any Parent or any Subsidiary, shall be eligible to
be granted Stock Options hereunder, subject to limitations set forth in this
Plan; provided, however, that only officers and employees shall be eligible to
be granted Incentive Stock Options hereunder.

                                   ARTICLE 6

                                 STOCK OPTIONS

     SECTION 6.1  General. Each Stock Option granted under the Plan shall be in
such form and under such terms and conditions as the Committee may from time to
time approve; provided, that such terms and conditions are not inconsistent with
the Plan. The provisions of Stock Option Agreements entered into under the Plan
need not be identical with respect to each Optionee. Stock Options granted under
the Plan may be either Incentive Stock Options or Non-Statutory Stock Options.

     SECTION 6.2  Terms and Conditions of Stock Options. Each Stock Option
granted pursuant to the Plan shall be evidenced by a written option agreement
between the Company and the Optionee (the "Stock Option Agreement"), which shall
comply with and be subject to the following terms and conditions.

     (a)  Number of Shares. Each Stock Option Agreement shall state the number
of shares of Stock to which the Stock Option relates.

     (b)  Type of Option. Each Stock Option Agreement shall identify the portion
(if any) of the Stock Option which constitutes an Incentive Stock Option.

                                       4
<PAGE>
 
     (c)  Exercise Price. Each Stock Option Agreement shall state the price at
which shares subject to the Stock Option may be purchased (the "Exercise
Price"), which, with respect to Incentive Stock Options, shall not be less than
100% of the Fair Market Value of the shares of Stock on the Date of Grant;
provided, however, that in the case of an Incentive Stock Option granted to a
Ten Percent Shareholder, the Exercise Price shall not be less than 110% of such
Fair Market Value.

     (d)  Value of Shares. The Fair Market Value of the shares of Stock
(determined as of the Date of Grant) with respect to which Incentive Stock
Options are first exercisable by an Optionee under this Plan and all other
incentive option plans of the Company and any Parent or Subsidiary in any
calendar year shall not, for such year, in the aggregate, exceed $________;
provided, however, that if the aggregate Fair Market Value of such shares
exceeds $________, then the incremental portion in excess of $________ shall be
treated as Non-Statutory Stock Options (and not as Incentive Stock Options);
provided, further, that this Section 6.2(d) shall not affect the right of the
Committee to accelerate or otherwise alter the time of vesting of any Stock
Options granted as Incentive Stock Options, even if, as a result thereof, some
of such Stock Options cease being Incentive Stock Options.

     (e)  Medium and Time of Payment. The Exercise Price shall be paid in full,
at the time of exercise, (i) in cash or cash equivalents, (ii) with the approval
of the Committee, in shares of Stock which have been held by the Optionee for a
period of at least six calendar months preceding the date of surrender and which
have a Fair Market Value equal to the Exercise Price, (iii) in a combination of
cash, cash equivalents and Stock, or (iv) in any other form of legal
consideration acceptable to the Committee, and may be effected in whole or in
part (x) with monies received from the Company at the time of exercise as a
compensatory, cash payment or (y) with monies borrowed from the Company in
accordance with Section 10.5.

     (f)  Term and Exercise of Stock Options. Stock Options shall vest or become
exercisable over the exercise period at the times the Committee may determine,
as reflected in the related Stock Option Agreements; provided, however, that the
Optionees shall have the right to exercise the Stock Options at the rate of at
least 20% per year over five years from the Date of Grant of such Stock Options.
The exercise period of any Stock Option shall be determined by the Committee,
but shall not exceed ten years from the Date of Grant of the Stock Option. In
the case of an Incentive Stock Option granted to a Ten Percent Shareholder, the
exercise period shall be determined by the Committee. but shall not exceed five
years from the Date of Grant of the Stock Option. A Stock Option may be
exercised, as to any or all full shares of Stock as to which the Stock Option
has become exercisable, by giving written notice of such exercise to the
Company.

                                   ARTICLE 7

                     MANDATORY GRANTS TO OUTSIDE DIRECTORS

     SECTION 7.1  Mandatory Grants to Outside Directors. Notwithstanding any
other provision of this Plan, the grant of Stock Options to Outside Directors
shall be subject to the following limitations of this Article 7.

     (a)  Upon the initial election or appointment of an Outside Director, the
Committee shall grant to such member, at the first meeting of the Committee
following the date of such election or appointment, a ten year Non-Statutory
Stock Option to purchase 10,000 shares of Stock.

     (b)  The Committee shall grant to each Outside Director, effective as of
each annual meeting of the Company's stockholders at the conclusion of which the
Outside Director still serves as a Director of the Company, a ten year Non-
Statutory Stock Option to purchase 5,000 shares of Stock.

     (c)  All Stock Options granted to Outside Directors under this Article 7
shall be exercisable at an Exercise Price equal to 100% of the Fair Market Value
of a share of Stock on the Date of Grant.

                                       5
<PAGE>
 
     (d)  All Stock Options granted to Outside Directors under this Article 7
will vest or become exercisable as follows: 33% of the Stock Options (rounded up
to the nearest whole share) shall vest on the first anniversary of the Date of
Grant of the Stock Options, and 33% of the Stock Options (rounded up to the
nearest whole share) shall vest on the second anniversary of the Date of Grant
of the Stock Options, and the remaining Stock Options shall vest on the third
anniversary of the Date of Grant of the Stock Options.

     (e)  Unless otherwise provided in the Plan, all provisions regarding the
terms of Non-Statutory Stock Options, other than those pertaining to the Date of
Grant, the number of shares covered by such grant, term and Exercise Price shall
be applicable to the Stock Options granted to Outside Directors under this
Article 7.

     SECTION 7.2  Prohibition of Other Grants to Outside Directors.
Notwithstanding any other provisions in this Plan, the mandatory grants
described in this Article 7 shall constitute the only grants under the Plan
permitted to be made to Outside Directors unless such persons are designated
Eligible Persons by the Board of Directors.

     SECTION 7.3  Prohibition Against Certain Amendments. Notwithstanding any
other provisions of this Plan, the provisions of this Article 7 shall not be
amended more than once every six months, other than to comport with changes in
the Code, the Employee Retirement Income Security Act, or the rules thereunder.

                                   ARTICLE 8

                                  ADJUSTMENTS

     SECTION 8.1  Effect of Certain Changes.

     (a)  Stock Dividends, Splits, etc. If there is any change in the number of
outstanding shares of Stock through the declaration of Stock dividends or
through a recapitalization resulting in Stock splits, or combinations or
exchanges of the outstanding shares, (i) the number of shares of Stock available
for Stock Options, (ii) the number of shares covered by outstanding Stock
Options, (iii) the number of shares set forth under Section 10.1(a) and (iv) the
Exercise Price of any Stock Option, in effect prior to such change, shall be
proportionately adjusted by the Committee to reflect any increase or decrease in
the number of issued shares of Stock; provided, however, that any fractional
shares resulting from the adjustment shall be eliminated.

     (b)  Liquidating Event. In the event of the proposed dissolution or
liquidation of the Company, or in the event of any corporate separation or
division, including, but not limited to, a split-up, split-off or spin-off
(each, a "Liquidating Event"), the Committee may provide that the holder of any
Stock Options then exercisable shall have the right to exercise such Stock
Options (at the price provided in the agreement evidencing the Stock Options)
subsequent to the Liquidating Event, and for the balance of its term, solely for
the kind and amount of shares of Stock and other securities, property, cash or
any combination thereof receivable upon such Liquidating Event by a holder of
the number of shares of Stock for or with respect to which such Stock Options
might have been exercised immediately prior to such Liquidating Event; or the
Committee may provide, in the alternative, that each Stock Option granted under
the Plan shall terminate as of a date to be fixed by the Board; provided,
however, that not less than 30 days written notice of the date so fixed shall be
given to each Stock Option holder and if such notice is given, each Stock Option
holder shall have the right, during the period of 30 days preceding such
termination, to exercise his or her Stock Options as to all or any part of the
shares of Stock covered thereby, without regard to any installment or vesting
provisions in his or her Stock Options agreement, on the condition, however,
that the Liquidating Event actually occurs; and if the Liquidating Event
actually occurs, such exercise shall be deemed effective (and, if applicable,
the Stock Option holder shall be deemed a shareholder with respect to the Stock
Options exercised) immediately preceding the occurrence of the Liquidating Event
(or the date of record for shareholders entitled to share in such Liquidating
Event, if a record date is set).

                                       6
<PAGE>
 
     (c)  Merger or Consolidation. In the case of any capital reorganization,
any reclassification of the Stock (other than a change in par value or
recapitalization described in Section 8.1(a) of the Plan), or the consolidation
of the Company with, or a sale of substantially all of the assets of the Company
to (which sale is followed by a liquidation or dissolution of the Company), or
merger of the Company with another person (a "Reorganization Event"), the
Committee may provide in the Stock Option Agreement, or if not provided in the
Stock Option Agreement, may determine, in its sole and absolute discretion, to
accelerate the vesting of outstanding Stock Options (a "Liquidity Event") in
which case the Company shall deliver to the Stock Option holders at least 15
days prior to such Reorganization Event (or at least 15 days prior to the date
of record for shareholders entitled to share in the securities or property
distributed in the Reorganization Event, if a record date is set) a notice which
shall (i) indicate whether the Reorganization Event shall be considered a
Liquidity Event and (ii) advise the Stock Option holder of his or her rights
pursuant to the agreement evidencing such Stock Options. If the Reorganization
Event is determined to be a Liquidity Event, (i) the Surviving Corporation may,
but shall not be obligated to, tender stock options or stock appreciation rights
to the Stock Option holder with respect to the Surviving Corporation, and such
new options and rights shall contain terms and provisions that substantially
preserve the rights and benefits of the applicable Stock Options then
outstanding under the Plan, or (ii) in the event that no stock options or stock
appreciation rights have been tendered by the Surviving Corporation pursuant to
the terms of item (i) immediately above, the Stock Option holder shall have the
right, exercisable during a 10 day period ending on the fifth day prior to the
Reorganization Event (or ending on the fifth day prior to the date of record for
shareholders entitled to share in the securities or properly distributed in the
Reorganization Event, if a record date is set), to exercise his or her rights as
to all or any part of the shares of Stock covered thereby, without regard to any
installment or vesting provisions in his or her Stock Options agreement, on the
condition, however, that the Reorganization Event is actually effected; and if
the Reorganization Event is actually effected, such exercise shall be deemed
effective (and, if applicable, the Stock Option holder shall be deemed a
shareholder with respect to the Stock Options exercised) immediately preceding
the effective time of the Reorganization Event (or on the date of record for
shareholders entitled to share in the securities or property distributed in the
Reorganization Event, if a record date is set). If the Reorganization Event is
not determined to be a Liquidity Event, the Stock Option holder shall thereafter
be entitled upon exercise of the Stock Options to purchase the kind and number
of shares of stock or other securities or property of the Surviving Corporation
receivable upon such event by a holder of the number of shares of the Stock
which the Stock Options would have entitled the Stock Option holder to purchase
from the Company if the Reorganization Event had not occurred, and in any such
case, appropriate adjustment shall be made in the application of the provisions
set forth in this Plan with respect to the Stock Option holder's rights and
interests thereafter, to the end that the provisions set forth in the agreement
applicable to such Stock Options (including the specified changes and other
adjustments to the Exercise Price) shall thereafter be applicable in relation to
any shares or other property thereafter purchasable upon exercise of the Stock
Options.

     (d)  Par Value Changes. In the event of a change in the Stock of the
Company as presently constituted which is limited to a change of all of its
authorized shares with par value, into the same number of shares without par
value, or any subsequent change in the par value. the shares resulting from any
such change shall be "Stock" within the meaning of the Plan.

     SECTION 8.2  Decision of Committee Final. To the extent that the foregoing
adjustments relate to stock or securities of the Company, such adjustments shall
be made by the Committee, whose determination in that respect shall be final,
binding and conclusive; provided, however, that each Incentive Stock Option
granted pursuant to the Plan shall not be adjusted without the prior consent of
the holder thereof in a manner that causes such Stock Option to fail to continue
to qualify as an Incentive Stock Option.

     SECTION 8.3  No Other Rights. Except as expressly provided in this Article
8, no Stock Option holder shall have any rights by reason of any subdivision or
consolidation of shares of Stock or the payment of any dividend or any other
increase or decrease in the number of shares of Stock of any class or by reason
of any Liquidating Event, merger, or consolidation of assets or stock of another
corporation, or any other issue by the Company of shares of stock of any class,
or securities convertible into shares of stock of any class; and except as

                                       7
<PAGE>
 
provided in this Article 8, none of the foregoing events shall affect, and no
adjustment by reason thereof shall be made with respect to, the number or price
of shares of Stock subject to Stock Options. The grant of Stock Options pursuant
to the Plan shall not affect in any way the right or power of the Company to
make adjustments, reclassification, reorganizations or changes of its capital or
business structures or to merge or to consolidate or to dissolve, liquidate or
sell, or transfer all or part of its business or assets.

     SECTION 8.4  No Rights as Shareholder. Except as specifically provided in
this Article 8, a Stock Option holder or a transferee of Stock Options shall
have no rights as a shareholder with respect to any shares covered by the Stock
Options until the date of the issuance of a Stock certificate to him or her for
such shares, and no adjustment shall be made for dividends (ordinary, or
extraordinary, whether in cash, securities or other property) or distributions
of other rights for which the record date is prior to the date such Stock
certificate is issued, except as provided in Section 8.1.

                                   ARTICLE 9

                           AMENDMENT AND TERMINATION

     The Board may amend, alter or discontinue the Plan, but no amendment,
alteration or discontinuation shall be made which would impair the rights of a
Participant under any Stock Options therefore granted without such Participant's
consent, or which without the approval of the shareholders would:

     (a)  except as provided in Article 8, materially increase the total number
of shares of Stock reserved for the purposes of the Plan;

     (b)  materially increase the benefits accruing to Participants or Eligible
Persons under the Plan; or

     (c)  materially modify the requirements for eligibility under the Plan.

     The Committee may amend the terms of any award theretofore granted,
prospectively or retroactively, but, subject to Article 3, no such amendment
shall impair the rights of any holder without his or her consent.

                                  ARTICLE 10

                              GENERAL PROVISIONS

     SECTION 10.1  General Restrictions.

     (a)  Limitation on Granting of Stock Options. Subject to adjustment as
provided in Article 8, no Participant shall be granted Stock Options with
respect to _______ shares of Stock.

     (b)  No View to Distribute. The Committee may require each person acquiring
shares of Stock pursuant to the Plan to represent to and agree with the Company
in writing that such person is acquiring the shares without a view towards
distribution thereof. The certificates for such shares may include any legend
which the Committee deems appropriate to reflect any restrictions on transfer.

     (c)  Legends. All certificates for shares of Stock delivered under the Plan
shall be subject to such stop transfer orders and other restrictions as the
Committee may deem advisable under the rules, regulations and other requirements
of the SEC, any stock exchange upon which the Stock is then listed and any
applicable federal or state securities laws, and the Committee may cause a
legend or legends to be put on any such certificates to make appropriate
reference to such restrictions.

                                       8
<PAGE>
 
     SECTION 10.2  Other Compensation Arrangements. Nothing contained in this
Plan shall prevent the Board from adopting other or additional compensation
arrangements, subject to shareholder approval if such approval is required; and
such arrangements may be either generally applicable or applicable only in
specific cases.

     SECTION 10.3  Disqualifying Dispositions, Withholding Taxes.

     (a)  Disqualifying Disposition. The Stock Option Agreements shall require
Optionees who make a "disposition" (as defined in the Code) of all or any of the
Stock acquired through the exercise of Stock Options within two years from the
date of grant of the Stock Option, or within one year after the issuance of
Stock relating thereto, to immediately advise the Company in writing as to the
occurrence of the sale and the price realized upon the sale of such Stock; and
each Optionee shall agree that he or she shall maintain all such Stock in his or
her name so long as he or she maintains beneficial ownership of such Stock.

     (b)  Withholding Required. Each Participant shall, no later than the date
as of which the value derived from Stock Options first becomes includable in the
gross income of the Participant for income tax purposes, pay to the Company, or
make arrangements satisfactory to the Committee regarding payment of, any
federal, state or local taxes of any kind required by law to be withheld with
respect to the Stock Options or their exercise. The obligations of the Company
under the Plan shall be conditioned upon such payment or arrangements and the
Participant shall, to the extent permitted by law, have the right to request
that the Company deduct any such taxes from any payment of any kind otherwise
due to the Participant.

     (c)  Withholding Right. The Committee may, in its discretion, grant to a
Stock Option holder the right (a "Withholding Right") to elect to make such
payment by irrevocably requiring the Company to withhold from shares issuable
upon exercise of the Stock Options that number of full shares of Stock having a
Fair Market Value on the Tax Date (as defined below) equal to the amount (or
portion of the amount) required to be withheld. The Withholding Right may be
granted with respect to all or any portion of the Stock Options.

     (d)  Exercise of Withholding Right. To exercise a Withholding Right, the
Stock Option holder must follow the election procedures set forth below,
together with such additional procedures and conditions as may be set forth in
the related Stock Option Agreement or otherwise adopted by the Committee.

          (i)   The Stock Option holder must deliver to the Company his or her
written notice of election (the "Election") to have the Withholding Right apply
to all (or a designated portion) of his or her Stock Options prior to the date
of exercise of the Right to which it relates.

          (ii)  Unless disapproved by the Committee as provided in Subsection
(iii) below, the Election once made will be irrevocable.

          (iii) No Election is valid unless the Committee consents to the
Election; the Committee has the right and power, in its sole discretion, with or
without cause or reason therefor, to consent to the Election, to refuse to
consent to the Election, or to disapprove the Election; and if the Committee has
not consented to the Election on or prior to the date that the amount of tax to
be withheld is, under applicable federal income tax laws, fixed and determined
by the Company (the "Tax Date"), the Election will be deemed approved.

          (iv)  If the Stock Option holder on the date of delivery of the
Election to the Company is a Section 16(b) Person, the following additional
provisions will apply:

                (A) the Election cannot be made during the six calendar month
period commencing with the date of the grant of the Withholding Right (even if
the Stock Options to which such Withholding Right relates have been granted
prior to such date); provided, that this Subsection (A) is not applicable to any
Stock Option holder at any time subsequent to the death, Disability or
Retirement of the Stock Option holder;

                                       9
<PAGE>
 
                (B) the Election (and the exercise of the related Stock Option)
can only be made during the Window Period; and

                (C) notwithstanding any other provision of this Section 10.3, no
Section 16(b) Person shall have the right to make any Election unless the
Company has been subject to the reporting requirements of Section 13(a) of the
Exchange Act for at least a year prior to the transaction and has filed all
reports and statements required to be filed pursuant to that Section for that
year.

     (e)  Effect. If the Committee consents to an Election of a Withholding
Right:

          (i)   upon the exercise of the Stock Options (or any portion thereof)
to which the Withholding Right relates, the Company will withhold from the
shares otherwise issuable that number of full shares of Stock having an actual
Fair Market Value equal to the amount (or portion of the amount, as applicable)
required to be withheld under applicable federal, state and/or local income tax
laws as a result of the exercise; and

          (ii)  if the Stock Option holder is then a Section 16(b) Person who
has made an Election, the related Stock Options may not be exercised, nor may
any shares of Stock issued pursuant thereto be sold, exchanged or otherwise
transferred, unless such exercise, or such transaction, complies with an
exemption from Section 16(b) provided under Rule 16b-3.

     (f)  Cash Reimbursements. The Company may make cash bonus payments to Non-
Statutory Stock Option holders to reimburse such Non-Statutory Stock Option
holders for all or part of federal and state taxes payable with respect to the
exercise of Non-Statutory Stock Options.

     SECTION 10.4  Indemnification. In addition to such other rights of
indemnification as they may have as Directors or Outside Directors, and to the
extent allowed by applicable law, the Committee shall be indemnified by the
Company against the reasonable expenses, including attorney's fees, actually
incurred in connection with any action, suit or proceeding or in connection with
any appeal therein, to which they or any one of them may be party by reason of
any action taken or failure to act under or in connection with the Plan or any
Stock Option granted under the Plan, and against all amounts paid by them in
settlement thereof (provided that the settlement has been approved by the
Company, which approval shall not be unreasonably withheld) or paid by them in
satisfaction of a judgment in any such action, suit or proceeding, except in
relation to matters as to which it shall be adjudged in such action, suit or
proceeding that such Committee did not act in good faith and in a manner which
such person reasonably believed to be in the best interests of the Company, and
in the case of a criminal proceeding, had no reason to believe that the conduct
complained of was unlawful; provided, however, that within 60 days after
institution of any such action, suit or proceeding, such Committee shall, in
writing, offer the Company the opportunity at its own expense to handle and
defend such action, suit or proceeding.

     SECTION 10.5  Loans. The Company may make loans to Optionees (other than
Directors who are not also employees or officers of the Company or any Parent or
any Subsidiary) as the Committee, in its discretion, may determine in connection
with the exercise of outstanding Stock Options granted under the Plan. Such
loans shall (i) be evidenced by promissory notes entered into by the holders in
favor of the Company; (ii) be subject to the terms and conditions set forth in
this Section 10.5 and such other terms and conditions, not inconsistent with the
Plan, as the Committee shall determine; and (iii) bear interest, if any, at such
rate as the Committee shall determine. In no event may the principal amount of
any such loan exceed the Exercise Price less the par value, if any, of the
shares of Stock covered by the Stock Option, or portion thereof, exercised by
the Optionee. The initial term of the loan, the schedule of payments of
principal and interest under the loan, the extent to which the loan is to be
with or without recourse against the holder with respect to principal and
applicable interest and the conditions upon which the loan will become payable
in the event of the holder's termination of employment shall be determined by
the Committee; provided, however, that the term of the loan, including
extensions, shall not exceed 10 years. Unless the Committee determines
otherwise, when a loan shall have been made, shares of Stock

                                       10
<PAGE>
 
having a Fair Market Value at least equal to the principal amount of the loan
shall be pledged by the holder to the Company as security for payment of the
unpaid balance of the loan and such pledge shall be evidenced by a security
agreement, the terms of which shall be determined by the Committee, in its
discretion; provided, however, that each loan shall comply with all applicable
laws, regulations and rules of the Board of Governors of the Federal Reserve
System and any other governmental agency having jurisdiction.

     SECTION 10.6  Non-Transferability of Stock Options. Each Stock Option
Agreement shall provide that the Stock Options granted under the Plan shall not
be transferable otherwise than by will or by the laws of descent and
distribution, and the Stock Options may be exercised, during the lifetime of the
Stock Option holder, only by the Stock Option holder or by his or her guardian
or legal representative.

     SECTION 10.7  Regulatory Matters. Each Stock Option Agreement shall provide
that no shares shall be purchased or sold thereunder unless and until (i) any
then applicable requirements of state or federal laws and regulatory agencies
shall have been fully complied with to the satisfaction of the Company and its
counsel; and (ii) if required to do so by the Company, the Optionee shall have
executed and delivered to the Company a letter of investment intent in such form
and containing such provisions as the Committee may require.

     SECTION 10.8  Recapitalizations. Each Stock Option Agreement and Stock
Purchase Agreement shall contain provisions required to reflect the provisions
of Article 8.

     SECTION 10.9  Delivery. Upon exercise of Stock Options granted under this
Plan, the Company shall issue Stock or pay any amounts due within a reasonable
period of time thereafter. Subject to any statutory obligations the Company may
otherwise have, for purposes of this Plan, 30 days shall be considered a
reasonable period of time.

     SECTION 10.10 Rule 16b-3. With respect to persons subject to Section 16 of
the Exchange Act, transactions under this Plan are intended to comply with all
applicable conditions of Rule 16b-3 or its successors under the Exchange Act. To
the extent any provision of the Plan or action by the Committee fails to so
comply, it shall be deemed null and void to the extent permitted by law and
deemed advisable by the Committee.

     SECTION 10.11 Other Provisions. The Stock Option Agreements authorized
under the Plan may contain such other provisions not inconsistent with this
Plan, including, without limitation, restrictions upon the exercise of the Stock
Options, as the Committee may deem advisable.

                                  ARTICLE 11

                            EFFECTIVE DATE OF PLAN

     The Plan shall become effective on ___________, 1996, subject to approval
by the Company's stockholders, which approval must be obtained within one year
from the date the Plan is adopted by the Board.

                                  ARTICLE 12

                                 TERM OF PLAN

     No Stock Options shall be granted pursuant to the Plan on or after
_____________ but Stock Options therefore granted may extend beyond that date.

                                       11
<PAGE>
 
                                  ARTICLE 13

                      INFORMATION TO STOCK OPTION HOLDERS

     The Company will cause a report to be sent to each Stock Option holder not
later than 120 days after the end of each fiscal year. Such report shall consist
of the financial statements of the Company for such fiscal year and shall
include such other information as is provided by the Company to its
shareholders.

                                       12
<PAGE>
 
                                                                      APPENDIX E

                      VETERINARY CENTERS OF AMERICA, INC.

                       1996 EMPLOYEE STOCK PURCHASE PLAN

     1.   PURPOSE OF PLAN. The purpose of this 1996 Employee Stock Purchase Plan
(the "Plan") is to encourage a sense of proprietorship on the part of employees
of Veterinary Centers of America, Inc., a Delaware corporation (the "Company"),
and its Subsidiary Corporations (as defined below) by assisting them in making
regular purchases of shares of stock of the Company, and thus to benefit the
Company by increasing such employees' interest in the growth of the Company and
subsidiary corporations and in such entities' financial success. Participation
in the Plan is entirely voluntary, and the Company makes no recommendation to
its employees as to whether they should participate.

     2.   DEFINITIONS.

          2.1  "Base Earnings" shall mean the Employee's regular salary rate
before deductions required by law and deductions authorized by the Employee. In
the case of Employees primarily compensated on a commission basis, Base Earnings
may include an amount of commission earnings not to exceed $__________ per
month. Base Earnings do not include: pay for overtime, extended workweek
schedules or any other form of extra compensation; payments by the Company or
Subsidiary Corporations, as applicable, for social security, worker's
compensation, unemployment compensation, any disability payments or other
payments required by statute; or contributions by the Company or Subsidiary
Corporations, as applicable, for insurance, annuity or other employee benefit
plans.

          2.2  "Board" shall mean the Board of Directors of the Company.

          2.3  "Broker" shall mean the financial institution designated to act
as the Broker under the Plan pursuant to Paragraph 17 hereof.

          2.4  "Brokerage Account" shall mean an account established on behalf
of each Participant pursuant to Paragraph 9.1 hereof.

          2.5  "Committee" shall mean a Stock Purchase Committee appointed by
the Board.

          2.6  "Common Stock" shall mean the Common Stock, par value $0.001 per
share, of the Company.

          2.7  "Company" shall mean Veterinary Centers of America, Inc., a
Delaware corporation, or any successor.

          2.8  "Company Account" shall mean the account established in the name
of the Company pursuant to Paragraph 7.2 hereof.

          2.9  "Employee" shall mean any person who is currently employed by the
Company or one of its Subsidiary Corporations for at least 20 hours per week and
has been so employed continuously during the preceding 90 days (provided that
the Board or the Committee may in its discretion waive such 90-day requirement),
excluding non-Employees and persons on leave of absence. An Employee may also be
referred to herein as a "Participant".

          2.10 "Enrollment Form" shall mean the Employee Stock Purchase Plan
Enrollment Form.

          2.11 "Interested Party" shall mean the persons described in Paragraph
16 hereof.

          2.12 "Plan" shall mean this Employee Stock Purchase Plan.
<PAGE>
 
          2.13  "Subsidiary Corporation" shall mean a corporation, domestic or
foreign, of which not less than 50% of the voting shares are held by the Company
or a Subsidiary Corporation, whether or not such corporation now exists or is
hereafter organized or acquired by the Company or a Subsidiary Corporation.

     3.   ADMINISTRATION. The Plan shall be administered by the Board or, in the
discretion of the Board, by the Committee which shall consist of not less than
two persons to be appointed by, and to serve at the pleasure of, the Board. No
member of the Board shall be eligible to participate in the Plan. An aggregate
of 250,000 shares of Common Stock shall be subject to the Plan, provided that
such number shall be automatically adjusted to reflect any stock split, reverse
stock split, stock dividend, recapitalization, merger, consolidation,
combination, reclassification or similar corporate change. The Board or the
Committee shall have full authority to construe, interpret, apply and administer
the Plan and to establish and amend such rules and procedures as it deems
necessary or appropriate from time to time for the proper administration of the
Plan. In addition, the Board or the Committee may engage or hire such persons to
provide administrative, recordkeeping and other similar services in connection
with its administration of the Plan, as it may deem necessary or appropriate
from time to time. The members of the Board and the Committee and the officers
of the Company shall be entitled to rely upon all certificates and reports made
by such persons, and upon all opinions given by any legal counsel or investment
adviser selected or approved by the Board or the Committee. The members of the
Board and the Committee and the officers of the Company shall be fully protected
in respect of any action taken or to be taken by them in good faith in reliance
upon any such certificates, reports, opinions or other advice of any such
person, and all actions so taken shall be conclusive upon each of them and upon
all Participants. The Company shall indemnify each member of the Board and the
Committee and any other officer or employee of the Company who is designated to
carry out any responsibilities under the Plan for any liability arising out of
or connected with his or her duties hereunder, except such liability as may
arise from such person's gross negligence or willful misconduct.

     4.   ELIGIBILITY. Any Employee as defined in Paragraph 2.9 shall be
eligible to participate in the Plan. Any Employee participating in the Plan who,
after the commencement of a particular Offering Period, as defined in Paragraph
5, shall for any reason fail to meet the standards of eligibility, shall be
considered to have withdrawn from the Plan, effective as of the date upon which
the Participant shall have become ineligible. Any reference in the Plan to
withdrawal by a Participant from the Plan shall include ineligibility as
described in this Paragraph 4.

     5.   OFFERING PERIODS. Shares shall be offered pursuant to this Plan in
consecutive periods ("Offering Periods") of three months duration each,
commencing on the effective date of the Plan pursuant to Paragraph 22 and
continuing thereafter until terminated in accordance with Paragraph 15. The
Board shall have the power to change the duration of Offering Periods if such
change is announced at least 10 days prior to the scheduled beginning of the
first Offering Period to be affected.

     6.   PARTICIPATION. All Employees of the Company, other than directors and
Executive Officers (as defined below) are eligible to participate in the Plan.
Participation in the Plan is optional. An eligible Employee may apply to
participate in the Plan by submitting to the Company's payroll office an
Enrollment Form authorizing a payroll deduction and purchase of shares. The
Enrollment Form shall be on a form provided by the Company and may be submitted
to the Company at any time. Participation shall not be effective until the
Enrollment Form is reviewed and accepted by the Company by written notice to the
Employee. Once the Enrollment Form has been reviewed and accepted by the
Company, participation in the Plan shall commence immediately. Executive
Officers include the chief executive officer, chief operating officer,
president, chief financial officer, executive vice president, or senior vice
president of the Company or a Subsidiary Corporation.

     7.   PAYROLL DEDUCTIONS.

          7.1   Election. At the time a Participant submits an Enrollment Form,
the Participant shall elect to have payroll deductions made on each payday
during the Offering Period at a whole percentage from 5% to 15% of the Base
Earning which the Participant is to receive on such payday. In the case of
Participants primarily compensated on a commission basis, a Participant can
elect to have payroll deductions made on each payday during 

                                       2
<PAGE>

the Offering Period at a whole percentage from 5% to 15% on the commission
portion of said Participant's Base Earnings, not to exceed $__________ per
quarter.
 
          7.2  Holding of Funds. All payroll deductions authorized by each
Participant shall be held in an interest-bearing account with a broker or
financial institution designated by the Board of Directors in the name of the
Veterinary Centers of America, Inc. Employee Stock Purchase Plan (the "Company
Account") until used to purchase Common Stock and shall not be used for any
other purpose. The Company shall maintain records reflecting the amount in the
Company Account for each Participant. Interest accruing on the payroll
deductions credited to the Company Account shall be used to defray costs
associated with administering the Plan and will not be available to purchase
shares of Common Stock under Paragraph 9. All withholding taxes in connection
with a Participant's payroll deduction shall be deducted from the remainder of
the Base Earnings paid to the Participant and not from the amount to be placed
in the Company Account. A Participant may not make any additional payments into
the Company Account except as provided in Paragraph 18. All amounts in the
Company Account derived from payroll deductions shall be referred to as the
"Participant Contribution."

          7.3  Changes in Election. Participation in the Plan will continue
until the Participant withdraws from the Plan, is no longer eligible to
participate, or the Plan is terminated. Such participation shall be on the basis
of the payroll deduction election submitted by such Employee to the Company and
then currently in effect. Each such election shall remain in effect until the
effective date of any change in the amount of payroll deduction as requested by
the Participant and accepted by the Company. To be effective in any Offering
Period, a change in the amount of payroll deduction must be requested in writing
and submitted to the Company. A Participant may change his withholding
percentage at any time during an Offering Period but only one time during any
one Offering Period. If a Participant's Base Earnings change during an Offering
Period, the amount of the payroll deduction will be changed to the figure
reflecting the Participant's previously elected deduction percentage applied to
his or her new Base Earnings (but will not in any event be in excess of 15% of
the Participant's Base Earnings).

     8.   CONTRIBUTION BY THE COMPANY OR A SUBSIDIARY. The Company or a
subsidiary shall make matching contributions (the "Matching Contribution") as
follows:

          8.1  Officers and Directors Not Participants. An "Executive Officer"
shall mean a chief executive officer, chief operating officer, president, chief
financial officer, executive vice president, or senior vice president of the
Company or a Subsidiary Corporation and shall be determined as of the end of an
Offering Period.

          8.2  All Participants. For each Participant in the Plan who remains an
Employee of the Company or a Subsidiary Corporation for at least one year after
the termination of a particular Offering Period, the Company or Subsidiary
Corporation shall make upon the first anniversary of the date of termination of
such Offering Period a Matching Contribution up to one-fifth of the amount
contributed on behalf of such Participant during such one year earlier Offering
Period, as determined in the discretion of the Committee and subject to
Paragraph 8.3. Withholding taxes as and when required in connection with such
Matching Contribution shall be withheld based upon the person's existing
withholding percentages or as otherwise required by law from the Participants's
Base Earnings.

          8.3  Fractional Share Calculations. Fractional shares shall not be
issued regarding the Matching Contribution. If the above calculation results in
an incremental share calculation which is .5, or greater, an additional whole
share shall be issued. If the above calculation results in an incremental share
calculation which is less than .5, no share shall be issued regarding such
fraction.

          8.4  Timing of Withholding. The Company shall withhold taxes in two
subsequent pay periods or as otherwise required by law.

     9.   PURCHASE OF SHARES REGARDING PARTICIPANT'S CONTRIBUTION.

                                       3
<PAGE>
 
          9.1  Brokerage Account. Following the acceptance by the Company of a
Participant's Enrollment Form, the Company shall direct the Broker to open and
maintain an account (the "Brokerage Account") in the name of such Participant
and to purchase shares of Common Stock on behalf of such Participant as
permitted under this Plan.

          9.2  Delivery of Funds to Broker from Company. The Company, from time
to time during an Offering Period, shall deliver to the Broker an amount equal
to the total of all Participant Contributions together with a list of the amount
of such Contributions from each Participant.

          9.3  Broker's Purchase of Shares. From time to time, the Broker, as
agent for the Participants, shall purchase as many full shares or fractional
shares of Common Stock as such Contributions will permit. The shares to be
purchased shall be purchased at the then current fair market value and may, at
the election of the Company, be either treasury shares, shares authorized but
unissued, or shares purchased on the open market. The amount of Common Stock
purchased by the Broker pursuant to this Paragraph 9.3 shall be allocated to the
respective Brokerage Account of each Participant on the basis of the average
cost of the Common Stock so purchased, in proportion to the amount allocable to
each Participant. At the end of each Offering Period under the Plan, each
Participant shall acquire full ownership of all full shares and fractional
shares of Common Stock purchased for his Brokerage Account. Unless otherwise
requested by the Participant, all such full shares and fractional shares so
purchased shall be registered in the name of the Broker and will remain so
registered until delivery is requested in accordance with Paragraph 9.5.

          9.4  Fees and Commissions. The Company shall pay the Broker's
administrative charges for opening and maintaining the Brokerage Accounts for
active Participants and the brokerage commissions on purchases made for such
Brokerage Accounts which are attributable to Participant Contributions and
Matching Contributions under the Plan. Such Brokerage Accounts may be utilized
for other transactions as described in Paragraph 9.5 below, but any fees,
commissions or other charges by the Broker in connection with such other
transactions shall, in certain circumstances described in Paragraph 9.5 be
payable directly to the Broker by the Participant.

          9.5  Participant Accounts with Broker. Each Participant's Brokerage
Account shall be credited with all cash dividends paid with respect to full
shares and fractional shares of Common Stock purchased pursuant to Paragraphs
9.3 and 10 unless such shares are registered in the Participant's name. Unless
otherwise instructed by the Participant, dividends on such Common Stock shall
automatically be reinvested in Common Stock as soon as practicable following
receipt of such dividends by the Broker. Applicable fees and brokerage
commissions on the reinvestment of such dividends will be payable by the
Participant. Any stock dividends or stock splits which are made with respect to
shares of Common Stock purchased pursuant to Paragraphs 9.3 and 10 shall be
credited to the Participant's Brokerage Account without charge. Any Participant
may request that a certificate for any or all of the full shares of Common Stock
credited to his Brokerage Account be delivered to him at any time, provided,
however, the Participant shall be charged by the Broker for any fees applicable
to such requests. A Participant may request the Broker at any time to sell any
or all of the full shares or fractional shares of Common Stock credited to his
Brokerage Account. Unless otherwise instructed by the Participant, upon such
sale, the Broker will mail to the Participant a check for the proceeds, less any
applicable fees and brokerage commissions and any transfer taxes, registration
fees or other normal charges which shall be payable by the Participant. Except
as provided in Paragraph 13, a request by the Participant to the Broker to sell
shares of Common Stock or for delivery of certificates shall not affect an
Employee's status as a Participant. A Participant who has a Brokerage Account
with the Broker may purchase additional shares of Common Stock of the Company
for his Brokerage Account at any time by separate purchases arranged through the
Broker. When any such purchases are made the Participant will be charged by the
Broker for any and all fees and brokerage commissions applicable to such
transactions. In addition, any subsequent transactions with respect to such
shares acquired including, but not limited to, purchases, sales, reinvestment or
dividends, requests for certificates and crediting of stock dividends or stock
splits, shall be at the expense of the Participant and the Broker shall charge
the Participant directly for any and all fees and brokerage commissions
applicable to such transactions.

                                       4
<PAGE>
 
     10.  ISSUANCE OF SHARES REGARDING MATCHING CONTRIBUTION. Subject to
Paragraph 15, on the first anniversary of the date of termination of an Offering
Period, each Participant's direct employer shall make the Matching Contribution
for each qualified Participant in an amount described in Paragraph 8 by
delivering to the Broker an amount equal to the total funds necessary to make
the Matching Contributions described in Paragraph 8 together with a list of the
number of shares allocable to the Brokerage Account of each Participant. As soon
as practicable thereafter, the Broker shall purchase the number of shares of
Common Stock required in order to make the Matching Contributions. The shares to
be purchased shall be purchased at the then current fair market value and may,
at the election of the Company, be either treasury shares, shares authorized but
unissued, or shares purchased on the open market. At the time of such purchases,
each Participant shall immediately acquire full ownership of all full shares of
Common Stock purchased. Unless otherwise requested by the Participant, all such
shares so purchased shall be registered in the name of the Broker and will
remain so registered until delivery is requested in accordance with Paragraph
9.5.

     11.  VOTING AND SHARES. All voting rights with respect to the full shares
of Common Stock held in the Brokerage Account of each Participant may be
exercised by each Participant, and the Broker shall exercise such voting rights
in accordance with the Participant's signed proxy instruction duly delivered to
the Broker. Fractional shares cannot be voted.

     12.  STATEMENT OF ACCOUNT. As soon as practicable after the end of each
Offering Period, the Broker shall deliver to each Participant a statement
regarding all activity in his or her Brokerage Account, including his or her
participation in the Plan for such Offering Period. Such statement will show the
number of shares acquired or sold, the price per share, the transaction date,
stock splits, dividends paid, dividends reinvested and the total number of
shares held in the Brokerage Account. The Broker shall also deliver to each
Participant as promptly as practicable, by mail or otherwise, all notices or
meetings, proxy statements and other material distributed by the Company to its
stockholders, including the Company's annual report to its stockholders
containing audited financial statements.

     13.  WITHDRAWAL FROM THE PLAN. A Participant may withdraw from the Plan,
effective as of the end of any Offering Period, by giving written notice to the
Company not later than the 15th day prior to the end of such Offering Period.
Upon any such withdrawal, the Participant shall be entitled to receive as
promptly as possible from the Company all the Participant's payroll deductions
credited to the Company Account in his or her name during the applicable
Offering Period, but shall not be entitled to the benefit of any Matching
Contributions. In the event a Participant withdraws from the Plan pursuant to
this Paragraph 13, the Company shall notify the Broker as soon as practicable
and the Broker shall maintain or close the Participant's Brokerage Account in
accordance with the procedures set forth in Paragraph 16. A Participant who
withdraws from the Plan may not reenter the Plan except by execution and
delivery of a new Enrollment Form and payroll deduction election, and his or her
participation shall be effective upon acceptance of the Enrollment Form by the
Company by written notice to the Employee not sooner than 30 days after receipt
of the Enrollment Form, provided that the Company may in its discretion accept
an Enrollment Form prior to the expiration of such 30 days.

     14.  TERMINATION OF EMPLOYEE. In the event of the termination of a
Participant's employment with the Company or a Subsidiary Corporation for any
reason during an Offering Period, including but not limited to the death of a
Participant, participation in the Plan shall terminate as well as any rights to
Matching Contributions. The Participant or the personal representative of the
Participant shall be entitled to receive an amount of cash determined in the
same manner and payable at the same time as if the Participant had withdrawn
from the Plan by giving notice of withdrawal effective as of the date such
termination occurs. Notwithstanding the foregoing, termination of employment by
one employer for the purpose of being re-employed immediately by the Company or
one of its Subsidiary Corporations shall not be considered termination under
this Paragraph 14. Any reference in this Plan to withdrawal by a Participant
from the Plan shall include termination as described in this Paragraph 14. In
the event of the termination of a Participant's employment pursuant to this
Paragraph 14, the Company shall notify the Broker as soon as practicable and the
Broker shall maintain or close the Participant's Brokerage Account in accordance
with the procedures set forth in Paragraph 16.

                                       5
<PAGE>
 
     15.  AMENDMENT AND TERMINATION OF PLAN. This Plan may be amended or
terminated by the Board at any time and such amendment or termination shall be
communicated in writing to all Participants as soon as practicable after the
date of such Board action. If the Plan is terminated, each Participant shall be
entitled to receive as promptly as possible from the Company all payroll
deductions attributable to him or her which have not been used to purchase
Common Stock pursuant to Paragraph 9, together with the accrued interest on the
Participant's funds held in the Company Account (collectively, the "Account
Balance"), but he or she shall not be entitled to the benefit of any Matching
Contributions with respect to such deductions or interest or otherwise for any
past or present Offering Periods. In any event, the Plan shall terminate 20
years from the date the Plan is adopted or the date the Plan is approved by the
stockholders, whichever is earlier. In the event that the Company terminates the
Plan pursuant to this Paragraph 15, the Broker shall maintain or close the
Participant's Brokerage Accounts in accordance with the procedures set forth in
Paragraph 16. Notwithstanding any other provision to the contrary, any provision
of this Plan may be amended by the Board or the Committee as required to obtain
necessary approvals of governmental agencies if such change does not materially
alter the rights and interests of stockholders of the Company. If there are any
changes in the capitalization of the Company, such as through mergers,
consolidations, reorganizations, recapitalizations, stock splits or stock
dividends, appropriate adjustments will be made by the Company in the number of
shares of its Common Stock subject to purchase under the Plan.

     16.  DISPOSITION OF BROKERAGE ACCOUNT FOLLOWING WITHDRAWAL, DEATH,
TERMINATION OF EMPLOYMENT OR TERMINATION OF PLAN. As soon as practicable
following the notification of the withdrawal of a Participant from the Plan, the
notification of the termination of a Participant's employment with the Company
or a Subsidiary Corporation (which includes the death of the Participant) or of
the notification that the Plan is terminated pursuant to Paragraph 15 hereof,
the Broker shall notify the former Participant, or in the event of his death,
his designated beneficiary, if any, or if no designated beneficiary the estate
of the deceased Participant (collectively, an "Interested Party"), regarding the
disposition of the former Participant's or deceased Participant's Brokerage
Account. As soon as practicable following receipt of the notification set forth
in the preceding sentence, the Interested Party may request the Broker to
dispose of the former Participant's or deceased Participant's Brokerage Account,
at the Interested Party's expense, by any one of the following means:

          (a)  The Interested Party may request the Broker to maintain the
     former Participant's or deceased Participant's Brokerage Account for the
     benefit of the Interested Party or any other person. The Interested Party
     shall be charged by the Broker for all maintenance fees and any and all
     other fees in connection with the Brokerage Account;

          (b)  The Interested Party may request the Broker to sell all of the
     full shares and fractional shares of Common Stock, if any, held in the
     former Participant's or deceased Participant's Brokerage Account. Upon such
     sale, the Broker will mail to the Interested Party a check for the
     proceeds, less any applicable fees and brokerage commissions and any
     transfer taxes, registration fees or other charges which shall be payable
     by the Interested Party; or

          (c)  The Interested Party may request the Broker to provide a
     certificate for all of the full shares of Common Stock, if any, together
     with a check in an amount equal to the proceeds of the sale of any
     fractional shares of Common Stock held in the former Participant's or
     deceased Participant's Brokerage Account, less any applicable fees and
     brokerage commissions and any transfer taxes, registration fees or other
     charges which are payable by the Interested Party.

Maintenance of the former Participant's or deceased Participant's Brokerage
Account pursuant to this Paragraph 16 shall confer no rights under the Plan.

     17.  BROKER.  The Company may administer the Plan without the use of a
Broker or may appoint a Broker. Any Broker appointed by the Company shall be
vested with all the powers, rights, duties and immunities described herein. The
relationship between the Broker and the Participant will be the normal
relationship of a broker and its client, and the Company assumes no
responsibility in this respect.

                                       6
<PAGE>
 
     18.  INITIAL CONTRIBUTION. Any Participant who files an Enrollment Form
prior to the first Offering Period may elect to make an initial contribution
("Initial Contribution") to be allocated to him or her in the Company Account,
by check payable to the Company, in any amount up to 5% of his or her Base
Earnings for the period between ________________ and the commencement of the
first Offering Period. The amount of the Initial Contribution shall be matched
as provided in Paragraph 8, and withholding taxes in connection with such
Matching Contribution shall be deducted in the same manner as provided in
Paragraph 8.

          18.1  Lump Sum Contribution. The Board and/or the Committee may from
time to time in its discretion allow any Participant in the Plan to make a lump
sum contribution ("Lump Sum Contribution") to be credited to him or her in the
Company account, by check payable to the Company, in any amount up to 15% of his
or her Base Earnings, including commissions as set forth in Paragraph 7.1, for a
period prescribed by the Board and/or the Committee. The amount of the Lump Sum
Contribution shall be matched as provided in Paragraph 8, and withholding taxes
in connection with such Matching Contribution shall be deducted in the same
manner as provided in Paragraph 8.

     19.  CONDITIONS TO ISSUANCE OF SHARES. Shares shall not be issued under the
Plan unless issuance and delivery of such shares pursuant to the Plan shall
comply with all applicable provisions of law, domestic or foreign, including,
without limitation, the Securities Act of 1933, as amended, the Securities
Exchange Act of 1934, as amended, the rules and regulations promulgated
thereunder, the securities laws of the state in which any Employee resides, NASD
requirements and the requirements of any stock exchange upon which the Common
Stock may then be listed, and shall be further subject to the approval of
counsel for the Company with respect to such compliance. By execution of the
Enrollment form, the Participant covenants and agrees that all shares are being
purchased only for investment and without any present intention to sell or
distribute such shares.

     20.  NOTICE.

          20.1  To Company or Subsidiaries. Any notice hereunder to the Company
or to its Subsidiary Corporations shall be in writing and such notice shall be
deemed made only when delivered or three days after being mailed by certified
mail return receipt requested to the Company's principal office at 3420 Ocean
Park Boulevard, Suite 1000, Santa Monica, California 90405 or to such other
address as the Company may designate by notice to the Participants.

          20.2  To Participant. Any notice to a Participant hereunder shall be
in writing and any such communication and any delivery to a Participant shall be
deemed made if mailed or delivered to the Participant at such address as the
Participant may have on file with the Company.

     21.  MISCELLANEOUS.

          21.1  No Limitation on Termination of Employment. Nothing in the Plan
shall in any manner be construed to limit in any way the right of the Company or
any of its Subsidiary Corporations to terminate an Employee's employment at any
time, without regard to the effect of such termination on any right such
Employee would otherwise have under the Plan, or give any right to an Employee
to remain employed by the Company in any particular position or at any
particular rate of remuneration.

          21.2  Liability. The Company, its Subsidiary Corporations, any member
of the Board or Committee and any other person participating in any
determination of any question under the Plan, or in the interpretation,
administration or application of the Plan, shall have no liability to any party
for any action taken or not taken in good faith under the Plan, or based on or
arising out of a determination of any questions under the Plan or an
interpretation, administration or application of the Plan made in good faith.

          21.3  Captions. The captions of the paragraphs of this Plan are for
convenience only and shall not control or affect the meaning or construction of
any of its provisions.

                                       7
<PAGE>
 
          21.4  Assignment. Any rights of Employees hereunder shall be
nonforfeitable, and no Account Balance or contribution made by any employer may
revert or inure to the benefit of the Company or any Subsidiary Corporation,
provided that no Participant shall be entitled to sell, assign, pledge or
hypothecate any right or interest in his or her Account Balance.

          21.5  Governing Law. THIS AGREEMENT SHALL BE GOVERNED AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF CALIFORNIA APPLICABLE TO CONTRACTS MADE
IN AND TO BE PERFORMED WITHIN THAT STATE.

          21.6  Severability. In case any provision of this Plan shall be held
illegal or invalid for any reason, said illegality or invalidity shall not
affect the remaining parts hereof, but this Plan shall be construed and enforced
as if such illegal and invalid provision had never been inserted herein.

          21.7  Successors. The provisions of this Plan shall bind and inure to
the Benefit of the Company and its successors and assigns. The term "successors"
as used herein shall include any corporate or other business entity which shall
by merger, consolidation, purchase or otherwise acquire all or substantially all
of the business and assets of the Company, and successors of any such
corporation or other business entity.

     22.  EFFECTIVE DATE OF PLAN. The Plan shall become effective upon the first
day of the month after which the Board approves the Plan, subject to
ratification by the stockholders of the Company, and all necessary approvals of
governmental agencies have been received.

                                       8
<PAGE>
                                                                  APPENDIX F
 
                                EXCHANGE RATES


<TABLE>
<CAPTION>
             VCAI               PETS            EXCHANGE RATIO
            ------          -----------         --------------
 
            <S>                <C>                <C>
            12.000              5.070               0.4225
            12.250              5.176               0.4225
            12.500              5.281               0.4225
            12.750              5.387               0.4225
            13.000              5.493               0.4225
            13.250              5.598               0.4225
            13.500              5.704               0.4225
            13.750              5.809               0.4225
            14.000              5.915               0.4225
            14.250              6.021               0.4225
            14.500              6.126               0.4225
            14.750              6.232               0.4225
            15.000              6.338               0.4225
            15.250              6.443               0.4225
            15.500              6.549               0.4225
            15.750              6.654               0.4225
            16.000              6.760               0.4225
            16.250              6.866               0.4225
            16.500              6.971               0.4225
            16.750              7.077               0.4225
            17.000              7.183               0.4225
            17.250              7.288               0.4225
            17.500              7.394               0.4225
            17.750              7.499               0.4225
            18.000              7.605               0.4225
            18.250              7.711               0.4225
            18.500              7.816               0.4225
            18.750              7.898               0.4213
            19.000              7.980               0.4200
            19.250              8.061               0.4188
            19.500              8.141               0.4175
            19.750              8.221               0.4163
            20.000              8.300               0.4150
            20.250              8.378               0.4138
            20.500              8.456               0.4125
            20.750              8.533               0.4113
            21.000              8.610               0.4100
            21.250              8.686               0.4088
            21.500              8.761               0.4075
            21.750              8.836               0.4063
            22.000              8.910               0.4050
            22.250              8.983               0.4038
            22.500              9.056               0.4025
            22.750              9.128               0.4013
            23.000              9.200               0.4000
            23.250              9.271               0.3988
            23.500              9.341               0.3975
            23.750              9.411               0.3963
</TABLE> 
<PAGE>
 
<TABLE>
<CAPTION>
             VCAI               PETS            EXCHANGE RATIO
            ------          -----------         --------------
 
            <S>                <C>                <C>
            24.000              9.480               0.3950
            24.250              9.609               0.3963
            24.500              9.739               0.3975
            24.750              9.869               0.3988
            25.000             10.000               0.4000
            25.250             10.000               0.3960
            25.750             10.000               0.3883
            26.000             10.000               0.3846
            26.250             10.000               0.3810
            26.500             10.000               0.3774
            26.750             10.000               0.3738
            27.000             10.000               0.3704
            27.250             10.000               0.3670
            27.500             10.000               0.3636
            27.750             10.000               0.3604
            28.000             10.000               0.3571
            28.250             10.000               0.3540
            28.500             10.000               0.3509
            28.750             10.000               0.3478
            29.000             10.000               0.3448
            29.250             10.000               0.3419
            29.500             10.000               0.3390
            29.750             10.000               0.3361
            30.000             10.000               0.3333
            30.250             10.096               0.3338
            30.500             10.192               0.3342
            30.750             10.288               0.3346
            31.000             10.385               0.3350
            31.250             10.430               0.3338
            31.500             10.474               0.3325
            31.750             10.517               0.3313
            32.000             10.560               0.3300
            32.250             10.602               0.3288
            32.500             10.644               0.3275
            32.750             10.685               0.3263
            33.000             10.725               0.3250
            33.250             10.765               0.3238
            33.500             10.804               0.3225
            33.750             10.842               0.3213
            34.000             10.880               0.3200
            34.250             10.917               0.3188
            34.500             10.954               0.3175
            34.750             10.990               0.3163
            35.000             11.025               0.3150
            35.250             11.060               0.3138
            35.500             11.094               0.3125
            35.750             11.127               0.3113
            36.000             11.160               0.3100
            36.250             11.192               0.3088
            36.500             11.224               0.3075
            36.750             11.255               0.3063
            37.000             11.285               0.3050
</TABLE> 

                                       2
<PAGE>
 
<TABLE>
<CAPTION>
             VCAI               PETS            EXCHANGE RATIO
            ------          -----------         --------------
 
            <S>                <C>                <C>
            37.250             11.315               0.3038
            37.500             11.344               0.3025
            37.750             11.372               0.3013
            38.000             11.400               0.3000
            38.250             11.427               0.2988
            38.500             11.454               0.2975
            38.750             11.480               0.2936
            39.000             11.505               0.2950
            39.250             11.530               0.2938
            39.500             11.554               0.2925
            39.750             11.577               0.2913
            40.000             11.600               0.2900
            40.250             11.622               0.2888
            40.500             11.644               0.2875
            40.750             11.665               0.2863
            41.000             11.685               0.2850
            41.250             11.705               0.2838
            41.500             11.724               0.2825
            41.750             11.742               0.2813
            42.000             11.760               0.2880
            42.250             11.777               0.2788
            42.500             11.794               0.2775
            42.750             11.810               0.2763
            43.000             11.825               0.2750
            43.250             11.840               0.2738
            43.500             11.854               0.2725
            43.750             11.867               0.2713
            44.000             11.880               0.2700
            44.250             11.892               0.2688
            44.500             11.904               0.2675
            44.750             11.915               0.2663
            45.000             11.925               0.2650
            45.250             11.935               0.2638
            45.500             11.944               0.2625
            45.750             11.952               0.2613
            46.000             11.960               0.2600
            46.250             11.967               0.2588
            46.500             11.974               0.2575
            46.750             11.980               0.2563
            47.000             11.985               0.2550
            47.250             11.900               0.2538
            47.500             11.994               0.2525
            47.750             11.997               0.2513
            48.000             12.000               0.2500
            48.250             12.002               0.2488
            48.500             12.004               0.2475
            48.750             12.005               0.2463
            49.000             12.005               0.2450
            49.250             12.005               0.2438
            49.500             12.005               0.2425
            49.750             12.005               0.2413
            50.000             12.005               0.2401
</TABLE> 

                                       3
<PAGE>
 
<TABLE>
<CAPTION>
             VCAI               PETS            EXCHANGE RATIO
            ------          -----------         --------------
 
            <S>                <C>                <C>
            50.250             12.005               0.2389
            50.500             12.005               0.2377
            50.750             12.005               0.2366
            51.000             12.005               0.2354
            51.250             12.005               0.2342
            51.500             12.005               0.2331
            51.750             12.005               0.2320
            52.000             12.005               0.2309
            52.250             12.005               0.2298
            52.500             12.005               0.2287
            57.750             12.005               0.2276
            53.000             12.005               0.2265
            53.250             12.005               0.2254
            53.500             12.005               0.2244
            53.750             12.005               0.2233
            54.000             12.005               0.2223
            54.250             12.005               0.2213
            54.500             12.005               0.2203
            54.750             12.005               0.2193
            55.000             12.005               0.2183
            55.250             12.005               0.2173
            55.500             12.005               0.2163
            55.750             12.005               0.2153
            56.000             12.005               0.2144
            56.250             12.005               0.2134
            56.500             12.005               0.2125
            56.750             12.005               0.2115
            57.000             12.005               0.2106
            57.250             12.005               0.2097
            57.500             12.005               0.2088
            57.750             12.005               0.2079
            58.000             12.005               0.2070
            58.250             12.005               0.2061
            58.500             12.005               0.2052
            58.750             12.005               0.2043
            59.000             12.005               0.2035
            59.250             12.005               0.2026
            59.500             12.005               0.2018
            59.750             12.005               0.2009
            60.000             12.005               0.2001
</TABLE>

                                       4
<PAGE>
 
                PART II.  INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 20.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     Article Nine of the Registrant's Certificate of Incorporation and Article
Five of its Bylaws provide for the indemnification by the Registrant of each
director, officer and employee of the Registrant to the fullest extent permitted
by the Delaware General Corporation Law, as the same exists or may hereafter be
amended. Section 145 of the Delaware General Corporation Law provides in
relevant part that a corporation may indemnify any person who was or is a party
or is threatened to be made a party to any threatened, pending or completed
action, suit or proceeding, whether civil, criminal, administrative or
investigative (other than an action by or in the right of the corporation) by
reason of the fact that such person is or was a director, officer, employee or
agent of the corporation, or is or was serving at the request of the corporation
as a director, officer, employee or agent of another corporation, partnership,
joint venture, trust or other enterprise, against expenses (including attorneys'
fees), judgments, fines and amounts paid in settlement actually and reasonably
incurred by such person in connection with such action, suit or proceeding if
such person acted in good faith and in a manner such person reasonably believed
to be in or not opposed to the best interests of the corporation, and, with
respect to any criminal action or proceeding, had no reasonable cause to believe
such person's conduct was unlawful.

     In addition, Section 145 provides that a corporation may indemnify any
person who was or is a party or is threatened to be made a party to any
threatened, pending or completed action or suit by or in the right of the
corporation to procure a judgment in its favor by reason of the fact that such
person is or was a director, officer, employee or agent of the corporation, or
is or was serving at the request of the corporation as a director, officer,
employee or agent of another corporation, partnership, joint venture, trust or
other enterprise against expenses (including attorneys' fees) actually and
reasonably incurred by such person in connection with the defense or settlement
of such action or suit if such person acted in good faith and in a manner such
person reasonably believed to be in or not opposed to the best interests of the
corporation and except that no indemnification shall be made in respect of any
claim, issue or matter as to which such person shall have been adjudged to be
liable to the corporation unless and only to the extent that the Delaware Court
of Chancery or the court in which such action or suit was brought shall
determine upon application that, despite the adjudication of liability but in
view of all the circumstances of the case, such person is fairly and reasonably
entitled to indemnity for such expenses which the Delaware Court of Chancery or
such other court shall deem proper. Delaware law further provides that nothing
in the above-described provisions shall be deemed exclusive of any other rights
to indemnification or advancement of expenses to which any person may be
entitled under any bylaw, agreement, vote of stockholders or disinterested
directors or otherwise.

     Article Nine of the Company's Certificate of Incorporation provides that a
director of the Registrant shall not be liable to the Registrant or its
stockholders for monetary damages for breach of fiduciary duty as a director.
Section 102(b)(7) of the Delaware General Corporation Law provides that a
provision so limiting the personal liability of a director shall not eliminate
or limit the liability of a director for, among other things: breach of the duty
of loyalty; acts or omissions not in good faith or which involve intentional
misconduct or a knowing violation of the law; unlawful payment of dividends; and
transactions from which the director derived an improper personal benefit.

     The Registrant has entered into separate but identical indemnity agreements
(the "Indemnity Agreements") with each director of the Registrant and certain
officers of the Registrant (the "Indemnitees").  Pursuant to the terms and
conditions of the Indemnity Agreements, the Registrant indemnified each
Indemnitee against any amounts which he or she becomes legally obligated to pay
in connection with any claim against him or her based upon any action or
inaction which he or she may commit, omit or suffer while acting in his or her
capacity as a director and/or officer of the Registrant or its subsidiaries,
provided, however, that Indemnitee acted in good faith and in a manner
Indemnitee reasonably believed to be in or not opposed to the best interests of
the Company and, with respect to any criminal action, had no reasonable cause to
believe Indemnitee's conduct was unlawful.

ITEM 21.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.

     (a)  Exhibits:

     A list of exhibits filed with this Registration Statement on Form S-4 is
set forth in the Exhibit Index, and is incorporated herein by reference.

                                      II-1
<PAGE>
 
ITEM 22.  UNDERTAKINGS.

     (1) The undersigned Registrant hereby undertakes as follows:  that prior to
any public reoffering of the securities registered hereunder through use of a
prospectus which is a part of this Registration Statement, by any person or
party who is deemed to be an underwriter within the meaning of Rule 145(c), the
issuer undertakes that such reoffering prospectus will contain the information
called for by the applicable registration form with respect to reofferings by
persons who may be deemed underwriters, in addition to the information called
for by the other items of the applicable form.

     (2) The Registrant undertakes that every prospectus (i) that is filed
pursuant to Paragraph (1) immediately preceding, or (ii) that purports to meet
the requirements of Section 10(a)(3) of the Act and is used in connection with
an offering of securities subject to Rule 415, will be filed as a part of an
amendment to the Registration Statement and will not be used until such
amendment is effective, and that, for purposes of determining any liability
under the Securities Act of 1933, each post-effective amendment shall be deemed
to be a new registration statement relating to the securities offered therein,
and the offering of such securities at that time shall be deemed to be the
initial bona fide offering thereof.

     Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the foregoing provisions or otherwise, the Registrant has
been advised that in the opinion of the Securities and Exchange Commission such
indemnification is against public policy as expressed in the Act and is,
therefore, unenforceable.  In the event that a claim for indemnification against
such liabilities (other than the payment by the Registrant of expenses incurred
or paid by a director, officer or controlling persons of the Registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.

     The undersigned Registrant hereby undertakes to respond to requests for
information that is incorporated by reference into the prospectus pursuant to
Item 4, 10(b), 11 or 13 of this form, within one business day of receipt of such
request, and to send the incorporated documents by first class mail or other
equally prompt means.  This includes information contained in documents filed
subsequent to the effective date of the Registration Statement through the date
of responding to the request.

     The undersigned Registrant hereby undertakes to supply by means of a post-
effective amendment all information concerning a transaction, and the company
being acquired involved therein, that was not the subject of and included in the
Registration Statement when it became effective.

     The undersigned registrant hereby undertakes:

     (1) To file, during any period in which offers or sales are being made, a
post-effective amendment to this registration statement;

        (i) To include any prospectus required by Section 10(a)(3) of the
Securities Act of 1933;

        (ii) To reflect in the prospectus any facts or events arising after the
effective date of the registration statement (or the most recent post-effective
amendment thereof) which, individually or in the aggregate, represent a  
fundamental change in the information set forth in the registration statement.
Notwithstanding the foregoing, any increase or decrease in volume of securities
offered (if the total dollar value of securities offered would not exceed that
which was registered) and any deviation from the low or high and of the
estimated maximum offering range may be reflected in the form of prospectus
filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the
changes in volume and price represent no more than 20 percent change in the
maximum aggregate offering price set forth in the "Calculation of registration
Fee" table in the effective registration statement;

        (iii)  To include any material information with respect to the plan of
distribution not previously disclosed in the registration statement or any
material change to such information in the registration statement.

                                      II-2
<PAGE>

 
     (2) That, for the purpose of determining any liability under the Securities
Act of 1933, each such post-effective amendment shall be deemed to be a new
registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

     (3) To remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.

                                      II-3
<PAGE>
 
 
                                  SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-4 and has duly caused this Registration
Statement on Form S-4 to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Santa Monica, and State of California on the 
24th day of June, 1996.

                                   VETERINARY CENTERS OF AMERICA, INC.


                                   By:  /s/ Robert L. Antin
                                        ----------------------------------------
                                        Robert L. Antin, Chief Executive Officer



                               POWER OF ATTORNEY

     KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints Robert L. Antin and Tomas W. Fuller or any one of
them, his attorney-in-fact and agent, with full power of substitution, for him
in any and all capacities, to sign any amendments to this Registration Statement
on Form S-4, and to file the same, with exhibits thereto and other documents in
connection therewith, with the Securities and Exchange Commission, hereby
ratifying and confirming all that said attorney-in-fact, or their substitutes,
may do or cause to be done by virtue hereof.

     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement on Form S-4 has been signed below by the following
persons in the capacities and on the dates indicated.
 
       Signature                       Title                        Date
       ---------                       -----                        ---- 

/s/ Robert L. Antin     President, Chief Executive Officer
- ---------------------   and Chairman of the Board             June 24, 1996
Robert L. Antin         (Principal Executive Officer and           ---
                        Director)
 
                
 
 
/s/ Arthur J. Antin     Senior Vice President, Chief
- ---------------------   Operating Officer, Secretary and      June 24, 1996
Arthur J. Antin         Director                                   ---
                      
                      
 
 
 
/s/ Neil Tauber         Senior Vice President, Treasurer      June 24, 1996
- ---------------------   and Director                               ---
Neil Tauber            
 

                                      II-4
<PAGE>
 
 
/s/ Tomas W. Fuller     Vice President, Chief Financial       June 24, 1996
- ---------------------   Officer and Assistant Secretary            ---
Tomas W. Fuller         
                        
                        
                        
/s/ Deborah W. Moore    Vice President, Controller            June 24, 1996
- ---------------------   (Principal Accounting Officer)             ---   
Deborah W. Moore        
                        
                        
                        
                        
                        
                        Director                              June   , 1996
- ---------------------                                              --- 
John Heil               
                        
 
 
/s/ John Chickering     Director                              June 24, 1996
- ---------------------                                              ---
John Chickering

 
 
 
/s/ Richard Gillespie   Director                              June 24, 1996
- ---------------------                                              ---
Richard Gillespie

 

                                      II-5
<PAGE>
 
                                 EXHIBIT INDEX
<TABLE>
<CAPTION>
Item    Exhibit                                                                          Page 
- -----   -------                                                                          ---- 
<C>     <S>                                                                              <C>  
 
  2.1   Agreement and Plan of Reorganization dated March 21, 1996 by and
        among Veterinary Centers of America, Inc., Golden Merger Corporation
        and the Pet Practice, Inc. (attached as Appendix A to the Joint Proxy
        Statement/Prospectus included in this Registration Statement)

  2.2   Agreement and Plan of Reorganization dated February 27, 1996, as
        amended on April 11, 1996, May 23, 1996 and June 7, 1996 by and among
        Veterinary Centers of America, Inc., PRI Merger Company, Pets' Rx, Inc.
        and the Principal Stockholder.

  2.3   Irrevocable Proxy dated March 21, 1996 by and between Abbingdon
        Ventures Partners Limited Partnership-II and Veterinary Centers of
        America, Inc.

  3.1   Certificate of Incorporation of Registrant, as amended to date (1)

  3.2   Bylaws of Registrant, as currently in effect (2)

  4.1   Specimen certificate evidencing Common Stock of Registrant (3)

  4.2   Form of Warrant Agreement (3)

  4.3   Indenture dated as of April 17, 1996 between Veterinary Centers of
        America, Inc. and the Chase Manhattan Bank, N.A.

  5.1   Opinion of Troop Meisinger Steuber & Pasich, LLP

 10.1   1987 Stock Option Plan of the Company and form of Stock Option
        Agreement used therewith, as amended (1)

 10.2   Form of Indemnification Agreement between the Company and its
        Directors (2)

 10.3   Employment Agreement, dated January 1, 1994, by and between Robert L.
        Antin and the Company, as amended (5)

 10.4   Employment Agreement, dated January 1, 1994, by and between Arthur J.
        Antin and the Company, as amended (5)

 10.5   Employment Agreement, dated January 1, 1994, by and between Neil
        Tauber and the Company, as amended (5)

 10.6   Lease and Sublease Agreement, dated September 1, 1992, by and among
        GSK Associates, Gebhart/Sevedge Properties and West Los Angeles
        Veterinary Medical Group, Inc. (1)
</TABLE> 
<PAGE>
 
<TABLE>
<CAPTION>
Item    Exhibit                                                                          Page
- -----   -------                                                                          ----
<C>     <S>                                                                              <C>  
10.7    Stock Purchase Agreement, dated as of December 9, 1992, between Heinz
        Pet Products Company, a division of Star-Kist Foods, Inc. and Veterinary
        Centers of America, Inc. (1)

10.8    Partnership Agreement, dated January 1, 1993, of Specialty Pet Products
        Partners (1)

10.9    Stock Option Agreement, dated March 2, 1989, by and between the
        Company and Robert L. Antin (2)

10.10   Stock Option Agreement, dated March 2, 1989, by and between the
        Company and Arthur J. Antin (2)

10.11   Stock Option Agreement, dated March 2, 1989, by and between the
        Company and Neil Tauber (2)

10.12   Revolving Line of Credit Agreement, dated December 19, 1995 for
        $3,100,000, by and between First Professional Bank and Veterinary Centers
        of America, Inc. (11)

10.13   1993 Incentive Stock Plan of the Company and form of Stock Option
        Agreement used therewith (5)

10.14   Asset Purchase Agreement, dated March 4, 1994 by and among VCA
        Professional Animal Laboratory, Inc. and Dennis Moore, D.V.M., Paul
        Greenlee, D.V.M., Andrew Loar, D.V.M. and Lon Rich, D.V.M. (4)

10.15   Agreement of Purchase and Sale, dated March 9, 1994 by and among
        Veterinary Centers of America and NAWOC Partnership (5)

10.16   Partnership agreement dated as of March 4, 1994 by and between Dr. Lon
        Rich, D.V.M., and VCA Professional Animal Laboratory, Inc. (4)

10.17   Asset Purchase Agreement dated as of November 1, between VCA
        Cenvet, Inc., and Cenvet Inc., a New York corporation and its
        stockholders, Robert Wilkins, B.V. Se and Steven R. Gilbertson, D.V.M. (6)

10.18   Management Consulting Agreement by and between VCA Cenvet, Inc.
        and R&B Management, Inc., a New York corporation, and Robert Wilkins,
        its President. (6)

10.19   Pathology Consulting Agreement by and between VCA Cenvet, Inc. and
        R&B Management, Inc., a New York corporation, and Robert Wilkins, its
        President. (6)

10.20   Management Consulting Agreement by and between VCA Cenvet,. Inc.
        and SRG Consulting, Inc., a New York corporation, and Steven Gilbertson,
        its President (6)
</TABLE> 
<PAGE>
 
<TABLE>
<CAPTION>
Item    Exhibit                                                                          Page
- -----   -------                                                                          ----
<C>     <S>                                                                              <C>   
10.21   Pathology Consulting Agreement by and between VCA Cenvet, Inc. and
        SRG Consulting Inc., a New York corporation, and Steven Gilbertson, its
        President (6)

10.22   Lease of premises located at 32-50 57th Street, Woodside, New York by
        and between VCA Cenvet, Inc., and RJW Associates, a New york general
        partnership (6)

10.23   Security Agreement by and among VCA Cenvet, Inc., R&B Management,
        Inc., and SRG Consulting, Inc. (6)

10.24   Noncompetition Agreement by and between VCA Cenvet, Inc., and Robert
        Wilkins (6)

10.25   Noncompetition Agreement by and between VCA Cenvet, Inc., and
        Steven Gilbertson (6)

10.26   Letter Agreement entered into by and between VCA Cenvet, Inc., and
        Robert Wilkins (6)

10.27   Letter Agreement entered into by and between VCA Cenvet, Inc., and
        Steven Gilbertson (6)

10.28   Stock Purchase Agreement, dated as of January 11, 1995, by and between
        Star-Kist Foods, Inc. and Veterinary Centers of America, Inc. (7)

10.29   Registration Rights Agreement, dated as of January 11, 1995, by and
        between Star-Kist Foods, Inc. and Veterinary Centers of America, Inc. (7)

10.30   Shareholders Agreement, dated as of January 11, 1995, by and between
        Star-Kist Food, Inc., Robert L. Antin and Arthur J. Antin (7)

10.31   First Amendment to Partnership Agreement, dated as of January 11, 1995
        by and between HPP Specialty Pet Products Inc. and VCA Specialty Pet
        Products, Inc. (7)

10.32   Operating Agreement for Vet Research Laboratories, L.L.C. dated as of
        March 20, 1995 between Veterinary Centers of America, Inc., VCA Cenvet,
        Inc., and Vet Research, Inc. a Delaware corporation and its stockholders,
        Robert H. Schneider and Bruce Schneider (8)

10.33   VRI Option Agreement entered into as of March 20, 1995 by and between
        VCA Cenvet, Inc. and Vet Research Inc. (8)

10.34   VCA Option Agreement entered into as of March 20, 1995 by and between
        Veterinary Center of America, Inc., VCA Cenvet, Inc. and Vet Research
        Inc. (8)

10.35   Warrant Agreement entered into as of March 20, 1995 by and between
        Veterinary Centers of America, Inc. and Robert H. Schneider (8)
</TABLE> 
<PAGE>
 
<TABLE>
<CAPTION>
Item    Exhibit                                                                          Page
- -----   -------                                                                          ----
<C>     <S>                                                                              <C>  
10.36   Warrant Agreement entered into as of March 20, 1995 by and between
        Veterinary Centers of America, and Bruce T. Schneider (8)

10.37   Asset Purchase Agreement, dated February 8, 1996, by and among VCA
        Professional Animal Laboratory, Inc., Veterinary Centers of America, Inc.,
        Southwest Veterinary Diagnostics, Inc., and its stockholders, Robert
        Bartsch and Merge Westhoff (9)

10.38   Lease Agreement dated June 7, 1996 between Barclay-Curci Investment
        Company and Veterinary Centers of America, Inc.

 11.1   Computation of Per Share Earnings (12)

 21.1   Subsidiaries of Registrant

 23.1   Consent of Arthur Andersen LLP

 23.2   Consent of Price Waterhouse LLP

 23.3   Consent of Troop Meisinger Steuber & Pasich (included in its opinion
        filed as Exhibit 5.1 hereto)

 24.1   Power of Attorney (included as part of the signature page to the
        Registration Statement)

 99.1   Consent of National Westminster Bank PLC, New York Branch

 99.2   Consent of Smith Barney Inc.
- -------------------------
</TABLE>

(1)  Incorporated by reference from Registrant's Report on Form 10-K, filed on
     March 31, 1993.

(2)  Incorporated by reference from Registrant's Registration Statement on Form
     S-1, File No. 33-40095.

(3)  Incorporated by reference from Registrant's Registration Statement on Form
     S-1, File No. 33-42504.

(4)  Incorporated by reference from Registrant's Report on Form 8-K filed on
     March 22, 1994.

(5)  Incorporated by reference from Registrant's Report on Form 10-KSB, for the
     year ended December 31, 1993.

(6)  Incorporated by reference from Registrant's Report on Form 8-K, filed on
     January 14, 1995.

(7)  Incorporated by reference from Registrant's Report on Form 10-KSB, filed on
     March 14, 1995.

(8)  Incorporated by reference from Registrant's Report on Form 8-K, filed on
     March 26, 1995.

(9)  Incorporated by reference from Registrant's Report on Form 8-K, filed on
     March 15, 1996.

(10) Incorporated by reference from Registrant's Report on Form 8-K, filed on
     March 25, 1996.

(11) Incorporated by reference from Registrant's Report on Form 10-K, filed
     March 25, 1996.

(12) Incorporated by reference from Registrant's Report on Form 10-Q, filed
     May 15, 1996.

<PAGE>
 
                     AGREEMENT AND PLAN OF REORGANIZATION

                                 BY AND AMONG

                     VETERINARY CENTERS OF AMERICA, INC.,

                              PRI MERGER COMPANY,

                                 PETS RX, INC.

                                    AND THE

                            PRINCIPAL STOCKHOLDERS


                               FEBRUARY 27, 1996
<PAGE>
 
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                     PAGE
<S>           <C>                                                                    <C>
AGREEMENT AND PLAN OF REORGANIZATION..................................................  1

R E C I T A L S.......................................................................  1

A G R E E M E N T.....................................................................  1

ARTICLE 1.    Definitions.............................................................  1

ARTICLE 2.    The Merger..............................................................  7
     2.1      The Merger..............................................................  7
     2.2      Effect of the Merger....................................................  7
     2.3      Filings.................................................................  7
     2.4      Charter Documents, By-Laws and Directors................................  8
     2.5      Conversion of Company Common Stock and
              Company Preferred Stock.................................................  8
     2.6      Escrow of Merger Consideration..........................................  9
     2.7      Delivery of Certificates................................................  9
     2.8      Purchase Rights.........................................................  9
     2.9      Closing of Transfer Books............................................... 10
     2.10     Dissenting Stockholders................................................. 10
     2.11     Dissenter Payment....................................................... 11
     2.12     Lost Certificates....................................................... 11

ARTICLE 3.    The Closing............................................................. 11

ARTICLE 4.    Representations and Warranties of the Company........................... 11
     4.1      Organization and Standing; Charter Documents and By-Laws................ 12
     4.2      Authorization........................................................... 12
     4.3      Capital Stock........................................................... 13
     4.4      Subsidiaries and Affiliates and Other Names............................. 13
     4.5      No Consents............................................................. 13
     4.6      Financial Statements.................................................... 14
     4.7      Liabilities............................................................. 14
     4.8      Absence of Certain Changes or Events.................................... 14
     4.9      Real Property........................................................... 16
     4.10     Tangible Personal Property.............................................. 16
     4.11     Condition of Facilities................................................. 16
     4.12     Contracts............................................................... 17
     4.13     Employee Benefits....................................................... 18
     4.14     Company and its Subsidiary Employees.................................... 19
     4.15     Tax Audits and Payment of Taxes......................................... 20
     4.16     Payments to Company Employees........................................... 22
     4.17     Litigation.............................................................. 22
     4.18     Insurance............................................................... 23
</TABLE> 

                                       i
<PAGE>
 
<TABLE> 
<S>           <C>                                                                      <C> 
     4.19     Accounts Receivable..................................................... 23
     4.20     Loans and Advances...................................................... 23
     4.21     Severance and Employment Agreements..................................... 23
     4.22     Compliance With Applicable Law.......................................... 23
     4.23     Permits................................................................. 24
     4.24     Environmental Compliance Matters........................................ 24
     4.25     No Change of Control Provision.......................................... 25
     4.26     Brokers................................................................. 25
     4.27     Company Confidentiality Agreement....................................... 25
     4.28     Conversion Terms........................................................ 25
     4.29     Information............................................................. 25
     4.30     Knowledge............................................................... 26

ARTICLE 4A.   Representations and Warranties of the Principal Stockholders............ 26

ARTICLE 5.    Representations and Warranties of the Parent and MergerCo............... 27
     5.1      Organization and Standing; Charter Documents and By-Laws................ 27
     5.2      Authorization........................................................... 27
     5.3      Validity of Merger Shares............................................... 28
     5.4      SEC Reports............................................................. 28
     5.5      No Consents............................................................. 28
     5.6      Compliance With Applicable Law.......................................... 29
     5.7      No Brokers.............................................................. 29
     5.8      Information............................................................. 29
     5.9      Registration Statement.................................................. 29

ARTICLE 6.    Pre-Merger Covenants of the Parent, the Company,
              the Principal Stockholders and MergerCo................................. 30
     6.1      Conduct of Business of the Company...................................... 30
     6.2      Inspection of Records................................................... 31
     6.3      Stockholder Approval.................................................... 31
     6.4      Principal Stockholder Approval.......................................... 31
     6.5      Parent Board Approval................................................... 32
     6.6      Rule 145 Affiliates..................................................... 32
     6.7      Reorganization.......................................................... 32
     6.8      Filings; Other Action................................................... 32
     6.9      Publicity............................................................... 33
     6.10     Acquisition Proposals................................................... 33
     6.11     Disclosure Schedule..................................................... 33
     6.12     Exhibits and Schedules.................................................. 34
     6.13     No Transfer of Company Securities....................................... 34
     6.14     Merger Tax Matters...................................................... 34
     6.15     Exemption or Registration of Merger Shares.............................. 34

ARTICLE 7.    Conditions Precedent to Merger Obligation of
              the Company............................................................. 34
     7.1      Opinion of Counsel for the Parent and MergerCo.......................... 34
</TABLE> 

                                      ii
<PAGE>
 
<TABLE> 
<S>           <C>                                                                      <C> 
     7.2      Compliance by the Parent; Representations and Warranties 
              Correct................................................................. 34
     7.3      Governmental and Regulatory Consents.................................... 35
     7.4      Consents................................................................ 35
     7.5      Blue Sky Requirements................................................... 35
     7.6      Exemption or Registration of Merger Shares.............................. 35
     7.7      Litigation.............................................................. 35
     7.8      No Material Adverse Changes............................................. 36
     7.9      Tax Opinion............................................................. 36
     7.10     Escrow of Merger Consideration.......................................... 36
     7.11     Investment Letter....................................................... 36

ARTICLE 8.    Conditions Precedent to Merger Obligation
              of the Parent and MergerCo.............................................. 36
     8.1      Opinion of Counsel for the Company...................................... 36
     8.2      Compliance by the Company and the Principal Stockholders;
              Representations and Warranties Correct.................................. 37
     8.3      Estoppel Certificates and Non-Disturbance Agreements.................... 37
     8.4      Due Diligence........................................................... 37
     8.5      Hart Scott Act Filing................................................... 37
     8.6      Consents................................................................ 38
     8.7      Non-Competition Agreements.............................................. 38
     8.8      Blue Sky Requirements................................................... 38
     8.9      Accounting Treatment.................................................... 38
     8.10     Escrow of Merger Consideration.......................................... 38
     8.11     Company Stockholders Approval........................................... 38
     8.12     Parent Board of Director Approval....................................... 39
     8.13     Resignation of Company Officers and Directors........................... 39
     8.14     Company Certificate Regarding Company Securities........................ 39
     8.15     Company Affiliate's Letters............................................. 39
     8.16     Continued Employment of Key Managers.................................... 39
     8.17     Investment Letter....................................................... 39
     8.18     No Adverse Changes...................................................... 40

ARTICLE 9.    Post-Closing Covenants.................................................. 40
     9.1      Indemnification......................................................... 40
     9.2      Registration Statement Filing........................................... 44
     9.3      Listing of Additional Shares on NASDAQ.................................. 46
     9.4      Company Failure to Close................................................ 46

ARTICLE 10.   Termination............................................................. 47
     10.1     Material Breach......................................................... 47
     10.2     Consummation of Merger.................................................. 47
     10.3     Due Diligence........................................................... 47
     10.4     Mutual Consent.......................................................... 47
     10.5     Effect of Termination................................................... 47

ARTICLE 11.   Choice of Law; Arbitration.............................................. 48
</TABLE> 

                                      iii
<PAGE>
 
<TABLE>
<S>           <C>                                                                      <C>
ARTICLE 12.   Miscellaneous Provisions................................................ 49
     12.1     Notices................................................................. 49
     12.2     Severability............................................................ 50
     12.3     Exhibits and Schedules.................................................. 50
     12.4     Headings................................................................ 50
     12.5     No Adverse Construction................................................. 50
     12.6     Counterparts............................................................ 50
     12.7     Costs and Attorneys' Fees............................................... 50
     12.8     Successors and Assigns.................................................. 50
     12.9     Amendment............................................................... 50
     12.10    Waiver.................................................................. 51
     12.11    Entire Agreement........................................................ 51
     12.12    Disclosure Schedule..................................................... 51
     12.13    Obligations of the Parent............................................... 51

LIST OF EXHIBITS...................................................................... 54

LIST OF SCHEDULES..................................................................... 55
</TABLE>

                                      iv
<PAGE>
 
                     AGREEMENT AND PLAN OF REORGANIZATION


     This Agreement and Plan of Reorganization (the "Agreement") is made and
entered into as of February 27, 1996, by and among the persons identified on
                                                                            
Schedule A hereto (each individually, a "Principal Stockholder" and
- ----------                                                         
collectively, the "Principal Stockholders"), Veterinary Centers of America,
Inc., a Delaware corporation ("Parent"), PRI Merger Company, a Delaware
corporation ("MergerCo") and  Pets Rx, Inc., a Delaware corporation (the
"Company").


                                R E C I T A L S
                                - - - - - - - -
     A.   The Company and Parent jointly desire that Parent acquire all of the
issued and outstanding stock of the Company.

     B.   The parties have determined that the most expeditious manner of
accomplishing such acquisition would be the merger of MergerCo with and into the
Company (the "Merger").

     C.   The parties hereto desire to adopt a Plan of Reorganization within the
meaning of Sections 368(a) of the Internal Revenue Code of 1986, as amended (the
"Code").

                               A G R E E M E N T
                               - - - - - - - - -
     NOW, THEREFORE, in consideration of the foregoing premises, and mutual
covenants and agreements hereinafter set forth, the parties to this Agreement
hereby agree as follows:

                                    ARTICLE
                                    -------

                                 DEFINITIONS.
                                 ----------- 

     As used in this Agreement, terms defined in the preamble and recitals
hereto shall have the respective meanings specified therein and the following
terms shall have the meanings set forth below:

                 1.1     "ADJUSTMENT AMOUNT" shall mean the sum of (i) the
                                                            ------
amount by which (A) the out-of-pocket expenses actually incurred by the Company
in connection with the negotiation, execution and closing of this Agreement
(including the audit of the Company's 1995 financial statements), paid or
payable to accountants, lawyers, investment bankers and other professionals
engaged with respect to the Merger, plus (B) 50% of all fees paid in connection
with any filing made by the Company or the Parent under the Hart Scott Act, plus
(C) any tax liabilities of the Company as of the Closing to the extent that such
amounts are not reflected on the November 30, 1995 balance sheet of the Company,
in the aggregate exceed $300,000; plus (ii) the settlement amount to be paid or
payable with respect to the settlement of that certain action known as Barrett
v. Pets' Rx, Inc. to the extent such amount exceeds
<PAGE>
 
$200,000; plus (iii) any cash amounts paid or payable under the employment
agreement with Barry Matthews as a result of a "change of control" of the
Company or as a result of the termination or modification of such agreement (the
"Employee Costs"), but only to the extent that such Employee Costs exceed
$150,000.

                 1.2     "ADJUSTMENT SHARES" shall mean that number of shares
computed by dividing the Adjustment Amount by the Parent Per Share Value.

                 1.3     "AFFILIATE" means, when used with reference to a
specified Person, any Person that directly or indirectly through one or more
intermediaries controls or is controlled by, or is under common control with,
the specified Person. For purposes of the preceding sentence, the term "control"
means the power, direct and indirect, to direct or cause the direction of the
management and policies of a Person through voting securities, contract or
otherwise.

                 1.4     "AGREEMENT" shall mean this Agreement and Plan of
Reorganization.

                 1.5     "ANCILLARY AGREEMENTS" shall mean the Certificate of
Merger and the Escrow Agreement.

                 1.6     "CLASS A PREFERRED STOCK" shall mean the series of
Convertible Preferred Stock, par value $0.01 per share, of the Company
originally issued in 1994.

                 1.7     "CODE" shall mean the Internal Revenue Code of 1986, as
amended.

                 1.8     "COMPANY" shall mean Pets Rx, Inc., a Delaware
corporation.

                 1.9     "COMPANY COMMON STOCK" shall mean the Common Stock, par
value $0.01 per share, of the Company.

                 1.10    "COMPANY OPTION SHARES" shall mean (i) with respect to
warrants, options, and all other rights to purchase Company Common Stock, those
shares of Company Common Stock issuable upon exercise of such warrants, options
and other rights, and (ii) with respect to warrants, options, and all other
rights to purchase Company Preferred Stock, those shares of Company Common Stock
issuable upon the conversion of the Company Preferred Stock issuable upon
exercise of such warrants, options and other rights in each case as previously
granted or committed to be granted by the Company.

                 1.11    "COMPANY PREFERRED STOCK" shall mean the Class A
Preferred Stock, the Convertible Preferred Stock and any other preferred stock
of the Company.
<PAGE>
 
                 1.12    "COMPANY PURCHASE RIGHTS" shall mean each outstanding
right to purchase Company Option Shares.

                 1.13    "COMPANY SECURITIES" shall mean the Company Common
Stock, Class A Preferred Stock, Convertible Preferred Stock, any other
outstanding Company Preferred Stock and Company Purchase Rights.

                 1.14    "COMPANY SECURITYHOLDERS" means the holders of the
Company Securities.

                 1.15    "CONVERTIBLE PREFERRED STOCK" shall mean the series of
Convertible Preferred Stock, par value $0.01 per share, of the Company
originally issued in 1991.

                 1.16    "DELAWARE LAW" shall mean the General Corporation Law
of the State of Delaware.

                 1.17    "EXCHANGE ACT" shall mean the Securities Exchange Act
of 1934, as amended.

                 1.18    "EXCHANGE FACTOR" shall be determined by multiplying
the Merger Shares by a fraction, (i) the numerator of which is one and (ii) the
denominator of which is the sum of (A) the number of outstanding shares of
Company Common Stock immediately prior to the Effective Time and (B) the number
of shares of Company Common Stock issuable upon conversion of the outstanding
Class A Preferred Stock immediately prior to the Effective Time and (C) the
number of shares of Company Common Stock issuable upon conversion of the
outstanding Convertible Preferred Stock immediately prior to the Effective Time,
and (D) the number of shares of Company Common Stock issuable upon conversion of
any other class of Company Preferred Stock outstanding immediately prior to the
Effective Time.

                 1.19    "GAAP" shall mean generally accepted accounting
principles.

                 1.20    "HART SCOTT ACT" shall mean the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, as amended.

                 1.21    "MATERIAL ADVERSE EFFECT" means (i) with respect to the
Company and its Subsidiaries, an effect which is materially adverse to the
business, properties, assets, revenues, operations, financial condition or
results of operations of the Company and its Subsidiaries, taken as a whole,
(ii) with respect to the Parent and its Subsidiaries, an effect which is
materially adverse to the business, properties, assets, revenues, operations,
financial condition or results of operations of the Parent and its Subsidiaries,
taken as a whole, (iii) with respect to any Veterinary Hospital, an effect which
is materially adverse to the business or operations of such Veterinary Hospital.

                                       3
<PAGE>
 
                 1.22    "MERGER SHARES" shall mean 970,000 shares of Parent
Common Stock minus the Reduction Shares, which Merger Shares are to be exchanged
for the Company Common Stock and the Company Preferred Stock pursuant to this
Agreement.

                 1.23    "MERGERCO SECURITIES" shall mean all of the issued and
outstanding capital stock of MergerCo.

                 1.24    "PARENT" shall mean Veterinary Centers of America,
Inc., a Delaware corporation.

                 1.25    "PARENT COMMON STOCK" shall mean the Common Stock, par
value $0.001 per share, of the Parent.

                 1.26    "PERSON" includes an individual, partnership, limited
liability company, limited liability partnership, trust, estate, corporation,
joint venture, unincorporated association, government bureau or agency or other
entity of whatsoever kind or nature.

                 1.27    "POOLING RULES" shall mean the rules existing under
GAAP and the rules, regulations and pronouncements of the SEC, the compliance
with which is required for the treatment of the Merger as a pooling of
interests.

                 1.28    "PRINCIPAL STOCKHOLDERS" shall mean those holders of
Company Securities listed on Schedule A attached hereto.

                 1.29    "REDUCTION SHARES" means the sum of (i) that number of
shares of Parent Common Stock to which the Dissenters would be entitled as a
result of the Merger but for their being Dissenters, plus (ii) the number of
                                                     ----
"Dilutive Shares" underlying In-the-Money Company Purchase Rights and In-the-
Money Convertible Debt (each as defined below) outstanding immediately prior to
the Effective Time, plus (iii) the number of Adjustment Shares. The number of
                    ----
"Dilutive Shares" at the Effective Time shall be the sum of (A) the number of
Company Option Shares issuable upon exercise of In-the-Money Company Purchase
Rights and the number of shares of Company Common Stock issuable upon conversion
of In-the-Money Convertible Debt outstanding immediately prior to the Effective
Time, minus (B) the result of dividing (x) the aggregate dollar amounts which
would be payable by the holders of In-the-Money Purchase Rights upon the
exercise thereof plus the aggregate debt of the Company retired as a result of
                 ----
the conversion of the In-the-Money Convertible Debt, by (y) the Per Share Merger
Price, and multiplying the sum of (A) above minus (B) above by the Exchange
Factor. In-the-Money Company Purchase Rights shall mean those Company Purchase
Rights outstanding immediately prior to the Effective Time which have an
effective exercise price per share of Company Common Stock which is less than
the Per Share Merger Price. In-the-Money Convertible Debt means any debt
instrument of the Company outstanding immediately prior to the Effective Time
which by its terms is convertible into Company Common Stock at an effective
conversion price per share of Company Common Stock which is less than the Per
Share 

                                       4
<PAGE>
 
Merger Price. The Per Share Merger Price shall be determined by dividing (A)
970,000 multiplied by the Parent Per Share Value, by (B) the sum of (A) the
number of outstanding shares of Company Common Stock immediately prior to the
Effective Time and (B) the number of shares of Company Common Stock issuable
upon conversion of the outstanding Class A Preferred Stock immediately prior to
the Effective Time and (C) the number of shares of Company Common Stock issuable
upon conversion of the outstanding Convertible Preferred Stock immediately prior
to the Effective Time, and (D) the number of shares of Company Common Stock
issuable upon conversion of any other class of Company Preferred Stock
outstanding immediately prior to the Effective Time and (E) that number of
shares of Company Common Stock issuable upon exercise or conversion of
outstanding In-The-Money Company Purchase Rights and outstanding In-The-Money
Convertible Debt. The effective exercise price or conversion price of any
Company Purchase Right or Company Convertible Debt which is exercisable for or
convertible into Company Preferred Stock shall be determined after giving effect
to the conversion of such Company Preferred Stock into Company Common Stock.

                 1.30    "SECURITIES ACT" means the Securities Act of 1933, as
amended.

                 1.31    "SEC" means the Securities and Exchange Commission.

                 1.32    "STOCKHOLDER ANCILLARY AGREEMENTS" shall mean the
Affiliate Letters, the Investment Letters and the Non-Competition Agreements.

                 1.33    "STOCK PLAN" shall mean the Pets Rx, Inc. employee
stock option plan(s) identified in Schedule 1.33.

                 1.34    "SUBSIDIARY" of the Company means any Person of which
equity securities possessing more than a 10% ownership interest are, at the time
as of which such determination is being made, owned by the Company or its
Subsidiaries either directly or indirectly through one or more Subsidiaries.

                 1.35    "VETERINARY HOSPITALS" shall mean the veterinary
hospitals and clinics owned and operated by the Company or its Subsidiaries.

                 1.36    The following terms are defined in the following
sections of this Agreement:

                                       5
<PAGE>
 
<TABLE>
<CAPTION>
DEFINED TERM                                       WHERE FOUND   
- ------------                                       -----------   

<S>                                                <C>           
Acquisition Proposal                               Section 6.10  
Affiliate Letter                                   Section 6.6   
Audited Financial Statements                       Section 4.6   
CERCLA                                             Section 4.24  
Certificates                                       Section 2.7   
Certificate of Merger                              Section 2.3   
Claims                                             Section 4A.2  
Closing                                            Article 3     
Closing Date                                       Article 3     
Company Organizational Documents                   Section 4.1   
Constituent Corporations                           Section 2.1   
Damages                                            Section 9.1.1 
Delaware Secretary of State                        Section 2.3   
Dilutive Shares                                    Section 1.29  
Disclosure Schedule                                Article 4     
Dissenter                                          Section 2.10  
Effective Time                                     Section 2.3   
Environmental Laws                                 Section 4.24  
Escrow Shares                                      Section 9.1.7 
Hazardous Substances, Hazardous                                  
  Wastes, Hazardous Materials,                                   
  Pollutants, Solid Wastes,                                      
  Contaminants and Toxic Substances                Section 4.24  
Indemnified Party                                  Section 9.1.1 
Indemnifying Party                                 Section 9.1.1 
Interim Financial Statements                       Section 4.6   
Investment Letter                                  Section 7.11  
In-the-Money Company Purchase Rights               Section 1.29  
In-the-Money Convertible Debt                      Section 1.29  
Liabilities                                        Section 4.7   
Material Contracts                                 Section 4.12  
Merger                                             Section 2.1   
Non-Competition Agreement                          Section 8.7   
Parent Per Share Value                             Section 2.5.3 
Permits                                            Section 4.23  
Per Share Merger Price                             Section 1.29  
Registration Statement                             Section 9.2.1 
Remedies Exception                                 Section 4.2   
Rule 145 Affiliates                                Section 6.6   
Standard Form Confidentiality                                    
  Agreement                                        Section 4.27  
Surviving Corporation                              Section 2.1   
Third Party Claim                                  Section 9.1.1  
</TABLE>

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<PAGE>
 
                                  ARTICLE 2.
                                  ----------

                                  THE MERGER.
                                  ---------- 

          2.1    THE MERGER. On the terms and subject to the conditions set
forth in this Agreement, at the Effective Time, in accordance with this
Agreement and the Delaware Law, MergerCo shall merge with and into the Company
(the "Merger"), the separate existence of MergerCo shall cease and the Company
shall continue as the surviving corporation. The Company, in its capacity as the
entity surviving the Merger, is sometimes referred to herein as the "Surviving
                                                                     ---------
Corporation" and MergerCo and the Company are sometimes referred to collectively
- -----------
herein as the "Constituent Corporations."
               ------------------------


          2.2    EFFECT OF THE MERGER. At the Effective Time, the identity and
separate existence of MergerCo shall cease and the Surviving Corporation shall
succeed, without other transfer, to all of the rights, privileges, immunities,
powers, franchises and authority, whether of a public or private nature, and be
subject to all restrictions, disabilities and duties, of each of the Constituent
Corporations, and all the rights, privileges, immunities, powers, franchises and
authority of each of the Constituent Corporations, and all assets and properties
of every description, real, personal and mixed, and every interest therein,
wherever located, and all debts, liabilities and other obligations belonging or
due to either of the Constituent Corporations on whatever account, as well as
stock subscriptions and all other things in action belonging or due to each of
the Constituent Corporations, shall be vested in the Surviving Corporation, and
all property rights, privileges, immunities, powers, franchises and authority,
and all and every other interest, shall be thereafter as effectually the
property of the Surviving Corporation as they were of the Constituent
Corporations, and the title to any real estate or interest therein vested in
either Constituent Corporation shall not revert or be in any way impaired by
reason of the Merger but all rights of creditors and all liens upon any property
of either of the Constituent Corporations shall be preserved unimpaired, and the
Surviving Corporation shall be liable for the debts, liabilities and other
obligations of each of the Constituent Corporations, and any claims existing or
action or proceeding pending, by or against either the Constituent Corporations
may be prosecuted to judgment with right of appeal, as if the Merger had not
taken place.

          2.3    FILINGS. On the Closing Date, MergerCo and the Company shall
cause the Merger to be consummated by executing, delivering and filing a
Certificate of Merger with the Secretary of State of the State of Delaware (the
"Delaware Secretary of State"). The "Certificate of Merger" shall be
substantially in the form attached hereto as Exhibit 2.3. The Parties shall on
                                             -----------
the Closing Date file such other documents with the Delaware Secretary of State
as may be required by the provisions of the Delaware Law and as are necessary to
cause the Merger to become effective. The Merger shall become effective when the
Certificate of Merger and such other necessary documents are so filed with the
Delaware Secretary of State or at such

                                       7
<PAGE>
 
other time thereafter as provided in the Certificate of Merger. The time at
which the Merger becomes effective is herein referred to as the "Effective
Time."

          2.4    CHARTER DOCUMENTS, BY-LAWS AND DIRECTORS.

                 2.4.1   From and after the Effective Time, the Certificate of
Incorporation of the Company, as in effect immediately prior to the Effective
Time, shall be the Certificate of Incorporation of the Surviving Corporation,
and shall thereafter continue in effect until amended as provided therein and in
accordance with the Delaware Law.

                 2.4.2   The present by-laws of the Company shall be and remain
the by-laws of the Surviving Corporation until the same shall be altered,
amended or repealed in accordance with the Delaware Law.

                 2.4.3   At the Effective Time, each of the members of the Board
of Directors of the Company and its Subsidiaries shall resign and, concurrently
with such resignation, persons designated by the Parent shall be appointed the
directors and officers of the Surviving Corporation, and the Surviving
Corporation's Subsidiaries, to serve in accordance with the by-laws of the
Surviving Corporation, in the case of each such director or officer, until his
successor is duly elected or appointed and qualified or until his earlier death,
resignation or removal in accordance with the by-laws of the Surviving
Corporation.

          2.5    CONVERSION OF COMPANY COMMON STOCK AND COMPANY PREFERRED STOCK.
At the Effective Time, by virtue of the Merger and without any further action on
the part of the Company, the Company Securityholders, MergerCo, or Parent each
issued and outstanding share of Company Common Stock and Company Preferred Stock
shall be cancelled and converted into the right to receive the following:

                 2.5.1   each share of Company Common Stock outstanding
immediately prior to the Effective Time (except any share of Company Common
Stock held by a Dissenter immediately prior to the Effective Time) shall entitle
the holder thereof to that number of validly issued, fully paid and non-
assessable Merger Shares (including any fractional share) as is equal to the
number one multiplied by the Exchange Factor;

                 2.5.2   each share of Company Preferred Stock outstanding
immediately prior to the Effective Time (except any share of Company Preferred
Stock held by a Dissenter immediately prior to the Effective Time) shall entitle
the holder thereof to that number of validly issued, fully paid and non-
assessable Merger Shares (including any fractional share) as is equal to the
number of shares of Company Common Stock into which such share of Company
Preferred Stock is convertible immediately prior to the Effective Time
multiplied by the Exchange Factor;

                                       8
<PAGE>
 
                 2.5.3   no fractional shares of Parent Common Stock will be
issued, but in lieu thereof, any Company Securityholder who would otherwise be
issued a fractional share of Parent Common Stock after aggregating all of the
Merger Shares otherwise issuable to him in the Merger, shall be paid cash equal
to the value of such fractional share, based on the average per share closing
sales price of the Parent Common Stock as reported by the National Association
of Securities Dealers, Inc. National Market System (the "NMS") for the five
trading days ending two days prior to the Closing Date (the "Parent Per Share
Value");

                 2.5.4   each share of Company Common Stock and Company
Preferred Stock held by a Dissenter immediately prior to the Effective Time
shall entitle the holder thereof to receive the cash consideration determined
and payable in accordance with Section 262 of the Delaware Law, except as
otherwise agreed by the Company, Parent and the Dissenter; and

          2.6    ESCROW OF MERGER CONSIDERATION. Notwithstanding the provisions
of this Article 2, the Parent shall place in escrow pursuant to the terms of
Section 8.10 hereof and the Escrow Instrument in effect pursuant thereto that
number of Merger Shares equal to 10% of the total Merger Shares.

          2.7    DELIVERY OF CERTIFICATES. On or before the tenth day after the
Closing Date, the Parent shall make available, and each holder of Company
Securities other than the Dissenters shall be entitled to receive, upon
surrender to the Parent or its representatives of any certificate or
certificates evidencing such Company Securities (the "Certificates") for
cancellation, the aggregate Merger Shares into which such Company Securities
have been converted in the Merger, and, upon such surrender of each Certificate
and delivery by the Company of the aggregate number of Merger Shares in exchange
therefor, such Certificates shall forthwith be cancelled. Until so surrendered,
each Certificate shall be deemed for all corporate purposes to evidence only the
right to receive upon such surrender the aggregate number of Merger Shares into
which the Company Securities represented thereby shall have been converted.

          2.8    PURCHASE RIGHTS. Each of the Company Purchase Rights shall,
subject to the terms of any applicable stock option or warrant agreement, remain
outstanding following the Effective Time. At the Effective Time, such Company
Purchase Rights shall, by virtue of the Merger and without any further action on
the part of the Company, MergerCo, Parent or the holder of any Company Purchase
Right, be assumed by the Parent in such manner that the Parent (x) is a
corporation "assuming a stock option in a transaction to which Section 424
applied" within the meaning of Section 422 of the Code or (y) to the extent
Section 424 of the Code does not apply to any such Company Purchase Rights,
would be such a corporation were Section 424 applicable to such option. Each
Company Purchase Right assumed by the Parent shall be exercisable upon the same
terms and conditions as under the applicable stock option or warrant agreement,
except that (i) each such Company Purchase Right shall be exercisable for that
number of shares of Parent Common Stock (to the nearest whole share) into which
the Company Option Shares subject to such Company Purchase Right immediately
prior to the

                                       9
<PAGE>
 
Effective Time would be converted under Section 2.5.1 or 2.5.2 of this
Agreement, and (ii) the option price per share of Parent Common Stock shall be
equal to (x) the per share exercise price of such Company Purchase Right in
effect immediately prior to the Effective Time multiplied by the number of
Company Option Shares subject to such Company Purchase Right immediately prior
to the Effective Time, divided by (y) the number of shares of Parent Common
Stock subject to such Company Purchase Right immediately after the Effective
Time. No payment shall be made for fractional interests. In connection with the
assumption of the Company Purchase Rights, the Parent shall effect such
assumption in such manner as not to affect the "incentive" status of those
options which are "incentive" stock options within the meaning of the Code at
the Effective Time. From and after the date hereof, no additional Company
Purchase Rights shall be granted by the Company and no "vesting" or exercise
schedule of any Company Purchase Rights shall be modified or accelerated (other
than pursuant to the express terms of such Company Purchase Right) and no
exercise price of any Company Purchase Right shall be modified.

          2.9    CLOSING OF TRANSFER BOOKS. At and after the Effective Time,
transfers of the shares of Company Common Stock and Company Preferred Stock
outstanding immediately prior to the Effective Time shall not be made on the
stock transfer books of the Company.

          2.10   DISSENTING STOCKHOLDERS.  All issued and outstanding shares of
Company Common Stock and Company Preferred Stock held by holders of record as of
the date fixed for determination of stockholders entitled to notice of and to
vote at the meeting of the Company Stockholders who shall have neither voted in
favor of the Merger nor consented thereto in writing and shall have delivered
(and then been entitled to deliver) to the Company a written demand for
appraisal of their shares of Company Common Stock and/or Company Preferred Stock
within the time and in the manner provided in Section 262 of the Delaware Law
(individually, a "Dissenter," and collectively, the "Dissenters") shall not be
converted into Parent Common Stock, but shall be entitled to receive such
consideration as shall be provided in Section 262 in accordance with the terms
and subject to the conditions set forth in said Section 262, except that each
share of Company Common Stock and Company Preferred Stock issued and outstanding
immediately prior to the Effective Time and held by a Dissenter who shall
thereafter withdraw his demand for appraisal of his shares of Company Common
Stock and/or Company Preferred Stock with the Surviving Corporation's consent or
lose his right to such payment as provided in Section 262 shall be deemed
converted, as of the Effective Time, into fully paid and nonassessable shares of
Parent Common Stock, in which event such stockholder shall no longer be a
Dissenter.  The Company shall deliver to the Parent (i) on the first business
day following the meeting of Company Securityholders (or the twenty first (21st)
day following notice of written consent), a list of all holders of Company
Common Stock and Company Preferred Stock who have filed written demands for
payment of their shares of Company Common Stock and/or Company Preferred Stock
by the date of such meeting in accordance with said Section 262, and (ii) from
time to time, as the Parent shall reasonably request, other relevant information
with respect to such objections and demands.  The Company shall afford

                                       10
<PAGE>
 
to the Parent the opportunity to participate in all negotiations and proceedings
with respect to any such demands and shall not, prior to the Effective Time,
except with the prior written consent of the Parent, voluntarily make any
payment with respect to, settle or offer or agree to settle, any such demands
for payment.

          2.11   DISSENTER PAYMENT.  Each Dissenter who becomes entitled,
pursuant to the provisions of Section 262 of the Delaware Law, to payment for
the shares of Company Common Stock and/or Company Preferred Stock held by such
Dissenter shall receive the payment therefor provided under Section 262 from the
Surviving Corporation (less amounts to be placed in escrow pursuant to Section
8.10 hereof), but only up to the amount of such payment as shall have been
agreed upon or finally determined pursuant to Section 262, and such shares shall
thereupon be cancelled.

          2.12   LOST CERTIFICATES.  Notwithstanding the provisions of Section
2.7, in the event any certificate representing Company Securities has been lost,
stolen or destroyed, upon the making of an affidavit of that fact by the person
claiming such certificate to be lost, stolen or destroyed and an agreement to
indemnify the Parent against any claim that may be made against it with respect
to such certificate, the Parent will issue in exchange for such lost, stolen or
destroyed certificate the aggregate number of Merger Shares into which such
Company Securities would have been converted and any fractional payment due in
connection therewith pursuant to Section 2.5.


                                  ARTICLE 3.
                                  ----------

                                 THE CLOSING.
                                 ----------- 

     The Closing of the Merger (the "Closing") shall, unless another date or
place is agreed to in writing by the parties, take place at the offices of
Latham & Watkins, 505 Montgomery Street, San Francisco, California 94111 (except
for the filing of the Certificate of Merger, which shall take place in the
office of the Delaware Secretary of State) on the second business day following
the satisfaction or waiver of all conditions precedent to the Merger or such
other time as shall be mutually agreed to by the Company and Parent. The date of
the Closing is referred to in this Agreement as the "Closing Date."


                                  ARTICLE 4.
                                  ----------

                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY
                 ---------------------------------------------

     The Company represents and warrants to and agrees with the Parent and
MergerCo as set forth below. All representations and warranties of the Company
are made subject to the exceptions with respect thereto which are noted in the
Schedule to be delivered by the Company

                                       11
<PAGE>
 
to MergerCo and the Parent pursuant to Section 6.11 and identified as the
"Disclosure Schedule." The representations and warranties set forth below shall
 -------------------
be effective as of the date that the final draft of the Disclosure Schedule is
delivered to MergerCo and Parent pursuant to Section 6. 11, as certified in a
writing executed by Parent and the Company.

          4.1    ORGANIZATION AND STANDING; CHARTER DOCUMENTS AND BY-LAWS. Each
of the Company and the Subsidiaries is a corporation duly organized, validly
existing and in good standing under the laws of the state of its incorporation.
Each of the Company and the Subsidiaries is qualified, licensed or domesticated
as a foreign corporation and is in good standing in all jurisdictions where the
character of its properties owned or held under lease or the nature of the
business conducted by it make such qualification necessary except where the
failure to be so qualified would not have a Material Adverse Effect. Each of the
Company and the Subsidiaries has the requisite corporate power and corporate
authority to own, lease and operate its properties and assets and to carry on
its business in the manner and in the locations as presently conducted. The
state of incorporation of the Company and the Subsidiaries and each foreign
jurisdiction in which any of them are qualified are set forth in Section 4.1 of
the Disclosure Schedule. True and correct copies of the charter documents and 
by-laws of each of the Company and the Subsidiaries (the "Company Organizational
Documents") have been delivered to Parent.

          4.2    AUTHORIZATION. Subject to the stockholder approval required by
Section 6.3, the Company has the corporate power and authority to enter into
this Agreement and each of the Ancillary Agreements and to carry out its
obligations hereunder and thereunder. The execution and delivery of this
Agreement and each of the Ancillary Agreements and the consummation of the
transactions contemplated hereby and thereby have been duly and validly
authorized by the Company's Board of Directors and, other than the stockholder
approval required pursuant to Section 6.3 hereof, all corporate proceedings have
been taken and no other corporate proceedings on the part of the Company are
necessary to authorize the execution, delivery and performance by the Company of
this Agreement and each of the Ancillary Agreements. The execution, delivery and
performance of this Agreement and each of the Ancillary Agreements by the
Company will not conflict with or constitute a breach, violation or default
under the Company Organizational Documents, any statute, law or administrative
regulation, or under any judgment, decree, order, writ, governmental permit or
license, any Material Contract or any other agreement, lease, indenture or
instrument to which the Company or any of the Subsidiaries is a party or by
which the Company or any of the Subsidiaries is bound, which breach, violation
or default would have a Material Adverse Effect on the Company and its
Subsidiaries. This Agreement and each of the Ancillary Agreements have been duly
executed and delivered by the Company and constitute the valid and binding
obligations of the Company enforceable in accordance with their terms, except as
enforceability may be limited by applicable bankruptcy, insolvency,
reorganization, moratorium or similar laws relating to or affecting creditors'
rights generally and except that equitable remedies may not in all cases be
available (regardless of whether enforceability is considered in a proceeding at
law or in equity) (collectively, the "Remedies Exception").
                                      ------------------

                                       12
<PAGE>
 
          4.3    CAPITAL STOCK. The authorized capital stock of the Company and
a listing of all Company Securities which are currently outstanding is set forth
on Schedule 4.3. All of the issued and outstanding Company Securities have been
   ------------
duly authorized, validly issued, fully paid and are non-assessable and were not
issued in violation of any preemptive rights or any Federal or state securities
laws. Except with respect to the Convertible Preferred Stock, the Principal
Stockholders collectively own a majority of the issued and outstanding stock of
each class of Company Securities on a fully diluted basis. Section 4.3 of the
Disclosure Schedule lists the names of each of the Company Securityholders and
the class and number of Company Securities held by each such Company
Securityholder. All Company Purchase Rights were granted by the Company at
option or exercise prices not less than the fair market value of the Company
Option Shares subject thereto as of the time of grant as determined in good
faith by the Board of Directors of the Company. Other than as set forth in
Section 4.3 of the Disclosure Schedule, there are no other authorized, issued or
outstanding shares of the capital stock of the Company or any options, warrants,
convertible securities or other rights (including stock appreciation rights),
subscription rights (including preemptive rights), calls, agreements,
understandings, arrangements or commitments obligating the Company now or at any
time in the future to issue shares of its capital stock.

          4.4    SUBSIDIARIES AND AFFILIATES AND OTHER NAMES. The Company does
not have any Subsidiaries or own any equity interest or other securities or
ownership interest in any entity other than as set forth in Section 4.4 of the
Disclosure Schedule. All of the outstanding capital stock of each such
Subsidiary is owned entirely by the Company or by a Subsidiary, as the case may
be, as of the date hereof, free and clear of all Claims. All such shares of
capital stock have been duly authorized and validly issued and are fully paid
and nonassessable. None of such Subsidiaries has any outstanding subscriptions,
options, warrants, rights or other agreements or commitments obligating it to
issue or sell any shares of its capital stock, or any other equity interest, or
any securities or obligations convertible into or exchangeable for any shares of
capital stock of, or any other equity interest in, such Subsidiary. There are no
agreements, understandings or undertakings governing the rights and duties of
the Company or any Subsidiary as a shareholder of any Subsidiary, including,
without limitation, any agreement arrangement or understanding under which the
Company or any Subsidiary is or may become obligated, directly or indirectly, to
acquire or dispose of any equity interest in, make any capital contribution or
extend credit to, or act as guarantor, surety or indemnitor for any liability of
any Subsidiary. The Company (including any entity merged into or consolidated
with the Company or a predecessor to the Company's business) has not been known
as or used any name for itself or any of its operations other than the name Pets
Rx, Inc.

          4.5    NO CONSENTS. No consent, authorization, order or approval of,
or filing with or registration with, any governmental authority, commission,
board or other regulatory body of the United States or any state or political
subdivision thereof, or any other Person, is required to be made or obtained by
the Company for or in connection with the execution and delivery by the Company
and the Principal Stockholders of this Agreement, the Ancillary Agreements and
the Stockholder Ancillary Agreements and the consummation by the Company

                                       13
<PAGE>
 
and the Principal Stockholders of the transactions contemplated hereby and
thereby, the absence of which would have a Material Adverse Effect on the
Company or on the operations of any individual Veterinary Hospital other than
the filing of the Certificate of Merger with the Delaware Secretary of State and
filings made pursuant to the Hart Scott Act.

          4.6    FINANCIAL STATEMENTS. The books, accounts and records of the
Company and its Subsidiaries are, and have been, maintained in the Company's or
its Subsidiaries' usual, regular and ordinary manner, in accordance with GAAP,
consistently applied. The Company heretofore delivered to the Parent copies of
consolidated financial statements of the Company and its Subsidiaries (the
"Audited Financial Statements") consisting of consolidated balance sheets as of
December 30, 1994 and 1993 and consolidated statements of earnings,
stockholders' equity and cash flows for each of the Company's three fiscal years
in the period ended December 30, 1994, together with appended notes which are an
integral part thereof, all of which have been audited and certified by Price
Waterhouse LLP, certified public accountants. The Company heretofore delivered
to the Parent copies of consolidated unaudited financial statements of the
Company and its Subsidiaries (the "Interim Financial Statements") consisting of
a balance sheet, statements of earnings, stockholders' equity and cash flows for
the eleven (11) month period ending November 30, 1995. All of the Audited
Financial Statements and the Interim Financial Statements, including any
appended notes which are an integral part of such statements, have been prepared
in conformity with GAAP applied on a consistent basis throughout the periods
covered thereby, each balance sheet therein presents fairly the consolidated
financial position of the Company and its Subsidiaries as at its respective date
and each statement of earnings, stockholders' equity and cash flows presents
fairly the consolidated results of operations, stockholders' equity and cash
flows, respectively, of the Company and its Subsidiaries for the period covered
thereby subject in the case of the Interim Financial Statements to normal
recurring year-end adjustments and any other adjustments described therein and
the lack of footnotes which would be required by GAAP were such financial
statements audited.

          4.7    LIABILITIES.  The Company and its Subsidiaries do not have any
obligations or liabilities (direct or indirect, matured or unmatured, absolute,
accrued, contingent or otherwise) whether or not required by GAAP to be
reflected or reserved against on a balance sheet ("Liabilities") other than (a)
Liabilities provided for or reserved against in the Audited Financial Statements
or Interim Financial Statements, or (b) Liabilities incurred in the ordinary
course of business consistent with past practice since the date of the Interim
Financial Statements.  None of the Liabilities described above relates to or
has arisen out of a breach of contract, breach of warranty, tort or infringement
by or against the Company or any of its Subsidiaries or any claim or lawsuit
involving the Company or any of its Subsidiaries.

          4.8    ABSENCE OF CERTAIN CHANGES OR EVENTS.  Since the date of the
Interim Financial Statements, each of the Company and its Subsidiaries has
conducted its business only in the ordinary and usual course consistent with
past practice or as required for the consummation of the transactions
contemplated by this Agreement, and there has not been:

                                       14
<PAGE>
 
                 4.8.1   any Material Adverse Effect on the Company and the
Subsidiaries;

                 4.8.2   any change in accounting methods, principles and
practices employed by the Company and its Subsidiaries;

                 4.8.3   any casualty, damage, destruction or loss, or
interruption of use of any asset or property (whether covered by insurance or
not) in excess of $25,000 individually or in the aggregate;

                 4.8.4   any declaration, payment or setting aside for payment
of any dividends or other distribution on the Company Securities or purchase,
exchange or redemption of any of the Company Securities;

                 4.8.5   any grant to any officer or director of any increase in
compensation in an amount in excess of $10,000 individually or $50,000 in the
aggregate;

                 4.8.6   any sale, assignment, lease, exchange, transfer or
other disposition of any of its assets or property, except for sales of
inventory and cash applied in the payment of the Company's Liabilities, in each
case in the usual and ordinary course of business in accordance with the
Company's past practices;

                 4.8.7   any write off of any material asset as unusable or
obsolete or for any other reason;

                 4.8.8   any material change in the conduct or nature of any
aspect of the business of the Company or its Subsidiaries;

                 4.8.9   any capital expenditures in an amount which exceeds
$50,000 in the aggregate;

                 4.8.10  any discharge of any Liability except in the usual and
ordinary course of business in accordance with past practices, or prepayment of
any Liability which, in the aggregate, exceed $50,000;

                 4.8.11  any borrowing of any money other than in the ordinary
course of business consistent with past custom and practice or issuance or sale
of any bonds, debentures, notes or other corporate securities of any class,
including without limitation, those evidencing borrowed money, or prepayment or
acceleration of any payments under any of the foregoing, or otherwise making of
any payments in respect thereof other than in accordance with regularly
scheduled payments;

                                       15
<PAGE>
 
                 4.8.12  any hiring or termination of any employee who has an
annual salary in excess of $30,000;

                 4.8.13  any payments or distributions to employees, officers or
directors of the Company or any of its Subsidiaries except such amounts as
constitute currently effective compensation for services rendered, or
reimbursement for reasonable, ordinary and necessary out-of-pocket business
expenses;

                 4.8.14  any payment or incurrence of any management or
consulting fees, or engagement of any consultants;

                 4.8.15  any issuance or sale of any securities of any class; or

                 4.8.16  without limitation by the enumeration of any of the
foregoing, the entry into any material transactions other than in the usual and
ordinary course of business in accordance with past practices (the foregoing
representation and warranty shall not be deemed to be breached by virtue of the
entry by the Company or the Principal Stockholders into this Agreement or their
consummation of the transactions contemplated hereby).

          4.9    REAL PROPERTY.  Neither the Company nor any of its Subsidiaries
owns any real property.  All real property which the Company and its
Subsidiaries hold under any lease is identified in Section 4.9 of the Disclosure
Schedule.  Such leases are in full force and effect, none of the leases has been
modified or amended, no waiver, indulgence or postponement of the obligations of
the Company and its Subsidiaries thereunder has been granted by any lessor and
there exists no violation thereof or event of default thereunder or event,
occurrence, condition or act by the Company or its Subsidiaries, or to the
knowledge of the Company and its Subsidiaries by any lessor, which, with the
giving of notice or the lapse of time, would become a default under the terms
and provisions of such leases.  Neither the Company nor any of its Subsidiaries
has subleased or agreed to sublease to anyone any real property owned or leased
by it and has not assigned or agreed to assign to anyone other than Parent any
such lease.

          4.10   TANGIBLE PERSONAL PROPERTY.  The Company and its Subsidiaries
have good and marketable title to or a valid right to use all of its tangible
personal property, free and clear of any and all Claims other than any Claim or
Claims which alone or in the aggregate would have a Material Adverse Effect on
the Company and its Subsidiaries.  No unreleased mortgage, trust deed, chattel
mortgage, security agreement, financing statement or other instrument
encumbering any of the Company and its Subsidiaries assets has been recorded,
filed, executed or delivered.

          4.11   CONDITION OF FACILITIES.  The buildings, facilities, fixtures,
tenant improvements, machinery, equipment and other tangible property of the
Company and its Subsidiaries are in reasonable operating condition subject to
ordinary wear and tear.

                                       16
<PAGE>
 
          4.12   CONTRACTS.  Section 4.12 of the Disclosure Schedule contains a
true and complete list of all Material Contracts to which the Company or any of
its Subsidiaries is a party, by which any of them are bound, or with respect to
which any of them is the issuer, beneficiary or recipient.  All such Material
Contracts are in full force and binding on the parties thereto and no default
has occurred thereunder by the Company or any Subsidiary and, to the knowledge
of the Company and the Subsidiaries, no default has occurred thereunder by any
other contracting party in each case which has given, or with the lapse of time
or giving of notice, or both, would give any party the right to terminate such
agreement or would result in the acceleration of any liability or monetary
obligation or the imposition of any penalty, fine or forfeiture thereunder.  No
event, occurrence or condition exists which, with the lapse of time, the giving
of notice, or both, would become a default by the Company or any Subsidiary
under any Material Contract or, to the knowledge of the Company and the
Subsidiaries and any other contracting party.  For purposes of this Agreement,
"Material Contracts" shall mean any oral or written:  (a) employment,
management, consulting and other contracts or agreements with any current or
former officer, director, employee or consultant or with any entity in which any
of the foregoing is an owner, officer, director, employee or consultant, except
for any such agreements which are terminable at will, (b) contracts, agreements,
understandings or commitments for the purchase or sale of any materials,
products, services or supplies (i) calling for a purchase price or payment by
the Company or any Subsidiary in any one year of more than $25,000 (or $50,000
in the aggregate, in the case of any related series of contracts or other
commitments) or (ii) which are not one-time purchase orders and cannot be
cancelled or terminated by the Company or its Subsidiaries, as applicable,
without liability, premium or penalty on one month's or less notice, (c) leases,
conditional sales contracts, licenses and other agreements under which the
Company or its Subsidiaries uses any tangible personal property (including
without limitation all computer and peripheral and other related equipment and
devices) to which any Principal Stockholder or officer or director of the
Company is a party or with respect to which there are remaining payment
obligations which exceed $10,000 in the aggregate, (d) contracts or arrangements
with customers or suppliers for the sharing of fees, the rebating of charges or
other similar arrangements, (e) contracts, commitments or options relating to
either (i) the acquisition by the Company or its Subsidiaries of any operating
business or substantially all of the assets of a third party or (ii) the
purchase or disposition of any tangible or intangible assets of the Company or
its Subsidiaries other than in the ordinary and usual course of business, (f)
contracts containing covenants or restrictions limiting in any way the freedom
of the Company or its Subsidiaries to compete in any line of business or with
any person or entity in any geographical area or for any period of time, (g)
contracts or arrangements requiring the payment to any person of an override or
similar commission or royalty or fee, (h) guarantees, performance bid or
completion bonds, or other contracts of suretyship or indemnification, (i) trade
secret, confidentiality or similar agreements, (j) joint venture, operating,
shareholder and partnership agreements and (k) loan agreements, (l) notes, (m)
security agreements, mortgages, debentures, indentures, factoring agreements or
letters of credit, (n) sales representative, distribution, franchise,
advertising and similar agreements, (o) license agreements and (p) service
agreements affecting the Company's assets where the service

                                       17
<PAGE>
 
charge is in excess of $50,000 in the aggregate or is not terminable on 30 days
or less notice with a payment of no more than $5,000.

          4.13   EMPLOYEE BENEFITS.  The following representations, warranties
and agreements relate to employee benefits:

                 4.13.1  Neither the Company, any of its Subsidiaries, nor any
affiliate of the Company as determined under Section 414(b), (c), (m) or (o) of
the Code ("ERISA Affiliate") maintains, administers or contributes to, or has
maintained, administered or contributed to, nor do the employees of the Company,
its Subsidiaries or any ERISA Affiliate receive or expect to receive as a
condition of employment, benefits pursuant to any: employee benefit plan (as
defined in Section 3(3) of the Employee Retirement Income Security Act of 1974,
as amended ("ERISA")) ("Plan"); or bonus, deferred compensation, stock purchase,
stock option, stock appreciation, severance plan, salary continuation, vacation,
holiday, sick leave, fringe benefit, personnel policy, tool allowance, safety
equipment allowance, incentive, insurance, welfare or similar plan, program,
policy or arrangement ("Benefit Plan") which could result in the Mergerco or the
Company having any liabilities, whether direct or indirect, other than those
Plans and Benefit Plans described in the Disclosure Schedule.

                 4.13.2  All Plans and Benefit Plans comply with and are and
have been operated in material compliance with each applicable provision of
ERISA, the Code (other federal statutes, state law (including, without
limitation, state insurance law) and the regulations and rules promulgated
pursuant thereto or in connection therewith. Each Plan which is a group health
plan (within the meaning of Section 5000(b)(1) of the Code) complies with and
has been maintained and operated in accordance with each of the requirements of
section 162(k) of the Code as in effect for years beginning prior to 1989,
Section 4980B of the Code for years beginning after December 31, 1988 and Part 6
of Subtitle B of Title I of ERISA.

                 4.13.3  Neither the Company, any of its Subsidiaries, nor any
ERISA Affiliate has failed to make any contributions or to pay any amounts due
and owing as required by the terms of any Plan, Benefit Plan, or ERISA or any
other law applicable to any Plan or Benefit Plan.

                 4.13.4  True and complete copies of each Plan and Benefit Plan,
all written communications to employees regarding any Plan and Benefit Plan and
each plan, agreement, instrument and commitment referred to herein and any
related contracts, insurance policies or other agreements or documentation
necessary or appropriate for the customary operation, amendment, modification or
termination of any Plan or Benefit Plan, have been made available to the Parent
and MergerCo, including a description of the material terms of any unwritten
Plan or Benefit Plan.  All of the foregoing are legally valid, binding, in full
force and effect, and there are no defaults thereunder.  With respect to each
Plan and Benefit Plan, Section 4.13.4 of the Disclosure Schedule sets forth the
name and address of the administrator and the policy number and insurer under
all insurance policies.

                                       18
<PAGE>
 
                 4.13.5  Neither the Company, any of its Subsidiaries, nor any
ERISA Affiliate maintains, administers or contributes to or has maintained,
administered or contributed to within the six (6) preceding full calendar years
any Plan subject to Title IV of ERISA or Section 412 of the Code or Part 3 of
Title I(B) of ERISA.

                 4.13.6  All contributions, payments and premiums,
reimbursements, expenses and accruals with respect to all Plans and Benefit
Plans for all periods prior to or as of the Closing Date have been funded in a
funding vehicle separate from the assets of the Company and its Subsidiaries or
accrued on the Audited Financial Statements and the Interim Financial
Statements.

                 4.13.7  Except as required by Section 4980B of the Code,
neither the Company, any of its Subsidiaries nor any ERISA Affiliate has
promised any former employee or other individual not employed by the Company,
any of its Subsidiaries or any ERISA Affiliate, medical or other benefit
coverage, and neither the Company, any of its Subsidiaries nor any ERISA
Affiliate maintains or contributes to any plan or arrangement providing medical
benefits, life insurance or other welfare benefits to former employees, their
spouses or dependents or any other individual not employed by the Company, any
of its Subsidiaries or any ERISA Affiliate except to the extent required by
applicable law.

          4.14   COMPANY AND ITS SUBSIDIARY EMPLOYEES.  With respect to
employees of the Company and its Subsidiaries:

                 4.14.1  the Company and its Subsidiaries are and have been in
material compliance with all applicable laws respecting employment and
employment practices, terms and conditions of employment and wages and hours,
including, without limitation, any such laws respecting employment
discrimination, occupational safety and health, immigration status, and unfair
labor practices; there are no pending or, to the knowledge of the Company and
the Subsidiaries, threatened unfair labor practice charges or employee grievance
charges;

                 4.14.2  there is no request for union representation, labor
strike, dispute, slowdown or stoppage pending or, to the knowledge of the
Company and the Subsidiaries, threatened against or directly affecting the
Company or any of its Subsidiaries.

                 4.14.3  no grievance or arbitration proceeding arising out of
or under collective bargaining agreements is pending and no claims therefor
exist before any governmental agency;

                 4.14.4  the employment of the Company's and any of its
Subsidiaries' employees is terminable at will without cost to the Company or its
Subsidiaries except for payments required under the Plans and the Benefit Plans
and payment of accrued salaries or wages and vacation pay;

                                       19
<PAGE>
 
                 4.14.5  there is no collective bargaining agreement which is
binding on the Company or any of its Subsidiaries or other written or oral
agreement with respect to collective bargaining with any union or group of
employees;

                 4.14.6  neither the Company nor any of its Subsidiaries has
experienced any material work stoppage in the last thirty-six (36) months;

                 4.14.7  neither the Company nor any of its Subsidiaries is
delinquent in payments to any of its employees for any wages, salaries,
commissions, bonuses or other direct compensation for any services performed by
them to the Closing Date or amounts required to be reimbursed to such employees;

                 4.14.8  no employee or former employee has any right to be
rehired by the Company or any of its Subsidiaries  prior to the Company's or its
Subsidiaries' hiring a Person not previously employed by the Company or any of
its Subsidiaries;

                 4.14.9  Section 4.14.9 of the Disclosure Schedule contains a
true and complete list of all employees who are employed by the Company and each
of its Subsidiaries as of December 31, 1995, and such list correctly reflects
their salaries, wages, other compensation (other than benefits under the Plans
and the Benefit Plans), dates of employment and positions. Neither the Company
nor any of its Subsidiaries have taken any actions which were calculated to
dissuade, or had the effect of dissuading, any present employees,
representatives or agents of the Company from commencing an association with the
Parent or MergerCo after the Closing Date. Neither the Company nor any of its
Subsidiaries have any knowledge of any intention of a "Significant Employee" (as
herein defined) that such Significant Employee has terminated or intends to
terminate his or her employment with the Company or any of its Subsidiaries. As
used herein "Significant Employee" means the Chief Executive Officer, Chief
Operating Officer, Chief Financial Officer, President, any Vice President, or
any Manger of the Company or any of its Subsidiaries or any veterinarian
employed by the Company.

          4.15   TAX AUDITS AND PAYMENT OF TAXES. The following representations,
warranties and agreements are made with respect to tax matters:

                 4.15.1  As used in this Agreement, the following terms shall
have the following meanings: (A) "Taxes" shall mean all federal, state, local,
foreign and other net income, gross income, gross receipts, sales, use, ad
valorem, estimated, transfer, franchise, profits, license, lease, service,
service use, withholding, payroll, employment, excise, severance, stamp,
occupation, premium, property, windfall profits, customs, duties or other taxes,
fees, assessments or charges of any kind whatever, together with any interest
and any penalties, additions to tax or additional amounts with respect thereto;
and (B) "Returns" shall mean all returns, declarations, reports, statements and
other documents required to be filed in respect of Taxes, including Returns for
estimated Taxes. All citations to the Code, or to the Treasury

                                       20
<PAGE>
 
Regulations promulgated thereunder, shall include any amendments or any
substitute or successor provisions thereto.

                 4.15.2  There have been properly completed and filed on a
timely basis (including extensions) and in correct form all material Returns
required to be filed by the Company and its Subsidiaries on or before the
Closing Date. As of the Closing Date, the foregoing Returns correctly reflected
the facts regarding the income, business, assets, operations, activities, status
or other matters of the Company and its Subsidiaries or any other information
required to be shown thereon. An extension of time within which to file any
Return which has not been filed has not been requested or granted.

                 4.15.3  With respect to all amounts in respect of Taxes imposed
upon the Company and its Subsidiaries, or for which the Company and its
Subsidiaries is or could be liable, whether to taxing authorities (as, for
example, under law) or to other Persons (as, for example, under tax allocation
agreements), with respect to all taxable periods or portions of periods ending
on or prior to the Closing Date, and all amounts required to be paid by the
Company and its Subsidiaries, including all estimated Taxes, to taxing
authorities or others, whether or not shown on any Return, on or before the date
hereof have been paid in full.

                 4.15.4  No issues have been raised (and are currently pending)
by any taxing authority in connection with any of the Returns. No waivers of
statutes of limitation with respect to the Returns have been given by or
requested from the Company or any of its Subsidiaries. Section 4.15.4 of the
Disclosure Schedule sets forth (A) the taxable years of the Company and its
Subsidiaries as to which the respective statutes of limitations with respect to
Taxes have not expired, and (B) with respect to such taxable years, sets forth
those years for which examinations have been completed, those years for which
examinations are presently being conducted, those years for which examinations
have not been initiated, and those years for which required Returns have not yet
been filed. All deficiencies asserted or assessments made as a result of any
examinations have been fully paid, or are fully reflected as a liability in the
Audited Financial Statements and the Interim Financial Statements, or are being
contested and an adequate reserve therefor has been established and is fully
reflected as a liability in the Audited Financial Statements and the Interim
Financial Statements.

                 4.15.5  To the knowledge of the Company and the Subsidiaries,
no claim has ever been made by an authority in a jurisdiction where the Company
or its Subsidiaries does not file Returns that the Company or its Subsidiaries
is or may be subject to taxation by that jurisdiction. The Company and each of
its Subsidiaries has withheld and paid all Taxes or other amounts required to
have been withheld and paid in connection with amounts paid or owing to any
employee.

                 4.15.6  The unpaid Taxes of the Company and its Subsidiaries
for all periods ending on or prior to December 31, 1995 do not exceed the
reserve therefor (excluding any reserve for deferred Taxes established to
reflect timing differences between book and tax

                                       21
<PAGE>
 
income) set forth or included in the Closing Balance Sheet (a copy of which
balance sheets are attached to Section 4.15.6 of the Disclosure Schedule).

          4.16   PAYMENTS TO COMPANY EMPLOYEES.  Section 4.16 of the Disclosure
Schedule describes each:

                 4.16.1  business relationship (excluding employee compensation
paid in the ordinary course of business consistent with past practices and other
ordinary incidents of employment existing on the date of this Agreement) between
(i) the Company or any of its Subsidiaries, and (ii) any present or former
officer, director, stockholder or Affiliate of the Company or any of its
Subsidiaries, any present or former known spouse, sibling, ancestor or
descendant of any of the aforementioned persons or any trust or other similar
entity for the benefit of any of the forgoing persons (all such persons and
trusts encompassed by this clause (ii) being sometimes referred to collectively
herein as the "Related Parties" and individually as a "Related Party");

                 4.16.2  transaction (excluding employee compensation paid in
the ordinary course of business consistent with past practices and other
ordinary incidents of employment) occurring since November 30, 1995 between the
Company or any Subsidiary and any Related Party; and

                 4.16.3  amount owing by or to any of the Related Parties,
respectively, to or from the Company or a Subsidiary as of the date of this
Agreement.  No property or interest in any property which relates to and is or
will be necessary or useful in the present or currently contemplated future
operation or the business of the Company or of a Subsidiary is presently owned
by or leased or licensed by or to any Related Party.  On or prior to the Closing
Date, all amounts due and owing to the Company or a Subsidiary by any of the
Related Parties shall be paid in full.  No Related Party has any interest,
directly or indirectly, in any business, corporate or otherwise, which is in
competition with the business of the Company or a Subsidiary.

          4.17   LITIGATION.  There is no litigation or proceeding pending
before any Court or administrative agency or, to the knowledge of the Company or
the Subsidiaries, threatened, in law or in equity, and there are no proceedings
or governmental investigations pending or, to the knowledge of the Company or
the Subsidiaries, threatened against the Company or the Subsidiaries, or any of
their respective officers or directors, with respect to or affecting the
properties, assets or operations of the Company or any of the Subsidiaries, or
related to the consummation of the transactions contemplated hereby.  To the
knowledge of the Company or the Subsidiaries, there are no facts which, if known
by a potential claimant or governmental authority, would be likely to give rise
to a claim or proceedings which, if asserted or conducted with results
unfavorable to the Company or any of the Subsidiaries, would have a Material
Adverse Effect on the Company or any of its Subsidiaries or on the consummation
of the transactions contemplated hereby.  Neither the Company nor any of the
Subsidiaries is

                                       22
<PAGE>
 
a party to, or bound by, any decree, order or arbitration award (or agreement
entered into in any administrative, judicial or arbitration proceeding with any
governmental authority) with respect to or affecting its properties, assets or
operations.

          4.18   INSURANCE.  Section 4.18 of the Disclosure Schedule sets forth
a true and correct list of all policies of insurance, including the types and
coverage amounts thereof, owned by the Company or any of the Subsidiaries or in
which the Company or any of the Subsidiaries is named as an insured party or
beneficiary.  True and correct copies of all such policies have been delivered
to the Parent.  All such policies are in full force and effect and neither the
Company nor any of the Subsidiaries has received any notice of cancellation of
any such insurance policies.  In the 12 month period ending on the date hereof,
neither the Company nor any of the Subsidiaries has been refused any insurance,
nor has its coverage been limited, by any insurance carrier to which it has
applied for insurance or with which it has carried insurance.  Neither the
Company nor any of the Subsidiaries has borrowed any money or otherwise received
any loans against any such policies.  In the 12 month period ending on the date
hereof, neither the Company nor any of the Subsidiaries has (i) made any
accident, loss or other claims in excess of $5,000 under any of the insurance
policies or (ii) been notified of any material premium increase with respect to
any of the insurance policies.

          4.19   ACCOUNTS RECEIVABLE.  The accounts receivable reflected in the
Interim Financial Statements, and all accounts receivable arising since November
30, 1995, represent bona fide claims of the Company or its Subsidiaries against
debtors for sales, services performed or other charges arising on or before the
date hereof and all the goods delivered and services performed which gave rise
to said accounts were delivered or performed in accordance with the applicable
orders, contracts or customer requirements.  To the knowledge of the Company and
the Subsidiaries, accounts receivable are subject to no defenses, counterclaims
or rights of set-off.

          4.20   LOANS AND ADVANCES.  There are no outstanding loans or advances
by the Company or the Subsidiaries to any employees, former employees, officers,
directors, securityholders, consultants or agents of the Company or the
Subsidiaries, nor are there any outstanding loans or advances by any such
persons to or for the benefit of the Company or the Subsidiaries.

          4.21   SEVERANCE AND EMPLOYMENT AGREEMENTS.  Neither the Company nor
any of the Subsidiaries is a party to any agreement, and has no policy,
providing for severance or termination payments to, any officer, director,
consultant or employee.

          4.22   COMPLIANCE WITH APPLICABLE LAW.  The businesses of the Company
and its Subsidiaries are not being conducted in violation of any applicable law,
ordinance, regulation, decree or order of any governmental entity, except for
violations which either singly or in the aggregate do not and are not expected
to have a Material Adverse Effect on the Company and its Subsidiaries.  Neither
the Company nor its Subsidiaries is a party to or subject

                                       23
<PAGE>
 
to any judgment, decree, or order entered in any suit or proceeding brought by
any governmental agency or by any other Person, enjoining the Company or its
Subsidiaries with respect to any business practice, the acquisition of any
property, or the conduct of business in any area.

          4.23   PERMITS.  A true and correct copy of every material license,
permit, registration and governmental approval, agreement and consent applied
for, pending by, issued or given to the Company or its Subsidiaries, and every
agreement with governmental authorities (federal, state or local) entered into
by the Company or its Subsidiaries, which is in effect or has been applied for
or is pending, exclusive of Environmental Permits (the "Permits"), has
previously been furnished to the Parent or MergerCo.  Such Permits constitute
all licenses, permits, registrations, approvals and agreements and consents
which are required in order for the Company and its Subsidiaries to conduct its
business as presently conducted other than any license, permit, registration,
approval agreement or consent which the failure to obtain would not have a
Material Adverse Effect on the Company or on the operations of any of the
Veterinary Laboratories.

          4.24   ENVIRONMENTAL COMPLIANCE MATTERS.  The business of the Company
and its Subsidiaries as conducted in the past did not and as currently being
conducted is not in material violation of any applicable law, ordinance, rule,
prohibition or regulation relating to air, water or noise pollution, or the
production, storage, labeling or disposition of wastes or hazardous or toxic
substances, or the health, safety or environmental conditions on, beneath or
about any of the properties owned, used or leased by the Company or any of its
Subsidiaries or relating to the business of the Company or any of its
Subsidiaries (such laws, ordinances, rules, prohibitions and regulations being
herein referred to as "Environmental Laws").  The Company and its Subsidiaries
have timely filed all material reports, obtained all material approvals and
permits and generated and maintained all material data, documentation and
records required under any applicable Environmental Laws.  Neither the Company,
its Subsidiaries nor, to the knowledge of the Company or its Subsidiaries, any
other Person has placed, stored, buried, spilled or released, used, generated,
manufactured, refined, processed, treated, dumped or disposed of any materials
produced by, or resulting from, any business, commercial or industrial
activities, operations or processes, including without limitation any materials
which are "Hazardous Wastes", "Hazardous Substances", "Hazardous Materials",
"Pollutants", "Toxic Substances", "Solid Wastes" or "Contaminants" (as such
terms are defined in any applicable Environmental Law, including without
limitation the Comprehensive Environmental Response, Compensation and Liability
Act of 1980, as-amended ("CERCLA"), the Hazardous Materials Transportation Act,
the Resource Conservation and Recovery Act and the Toxic Substances Control
Act), on, beneath or about, or transported any such materials to or from, any of
the properties owned, used or leased by the Company or the Subsidiaries in each
case other than in material compliance with applicable Environmental Laws and in
the ordinary course of the Company's or its Subsidiaries' business.  Neither the
Company nor its Subsidiaries has received any notice from any governmental
agency or private or public entity advising it that it is or may be responsible,
or potentially responsible, for costs with respect to a release, a threatened
release

                                       24
<PAGE>
 
or clean up of materials located in any property owned by the Company or its
Subsidiaries or produced by, or resulting from, any business, commercial or
industrial activities, operations or processes of the Company or its
Subsidiaries, including without limitation, materials which are Hazardous
Wastes, Hazardous Substances, Hazardous Materials, Pollutants, Toxic Substances,
Solid Wastes or Contaminants.

          4.25   NO CHANGE OF CONTROL PROVISION.  Neither the Company nor any
Subsidiary is a party or subject to any agreement, contract or other obligation
which would require the making of any payment, other than payments as
contemplated by this Agreement, to any employee of the Company or to any other
Person as a result of the consummation of the transactions contemplated herein.

          4.26   BROKERS.  Neither the Company, its Subsidiaries nor any
Principal Stockholders dealt with any Person who is or may be entitled to a
broker's commission, finder's fee, investment banker's fee or similar payment
for arranging the transactions contemplated hereby or introducing the parties to
each other.

          4.27   COMPANY CONFIDENTIALITY AGREEMENT.  Attached as Exhibit 4.27 is
                                                                 ------------   
the Company's standard form of Confidentiality Agreement (the "Standard Form
Confidentiality Agreement") for employees of the Company and its Subsidiaries.
Except as set forth in Section 4.27 of the Disclosure Schedule, all employees of
the Company and its Subsidiaries have executed and agreed to, and there is
currently in effect with respect to all employees of the Company and its
Subsidiaries, the Standard Form Confidentiality Agreement with the Company and
its Subsidiaries, without any schedules, addenda, modifications or amendments to
the Standard Form Confidentiality Agreement (each such Standard Form
Confidentiality Agreement, with any schedules, addenda, modifications and
amendments thereto set forth in Section 4.27 of the Disclosure Schedule being
hereinafter referred to as a "Company Confidentiality Agreement").

          4.28   CONVERSION TERMS.  The allocation of Merger Shares among the
Company Securityholders, as determined pursuant to the provisions contained in
Article 2 hereof, is in accordance with this Agreement, the Company
Organizational Documents and all plans, agreements and other instruments and
documents, including without limitation the Stock Plan and all stock option
agreements entered into and stock option commitments made pursuant thereto,
relating to the Company Option Rights (the "Company Purchase Rights Documents").

          4.29   INFORMATION.  All written information provided to the Parent or
its agents by or on behalf of the Company, its Subsidiaries or any of their
respective representatives (including, without limitation, each representation
and warranty of the Company set forth in this Agreement) is, and the Company
covenants that any such information provided hereafter shall be, true and
correct in all material respects and does not, or shall not, omit any material
fact required to be included therein or necessary to make the statements
therein, in light of the circumstances under which they were made, not
misleading; provided, however, that no
            --------  -------         

                                       25
<PAGE>
 
representation or warranty is made by the Company as to any financial forecasts
or projections previously furnished to the Parent or its agents by the Company
or its representatives, except that such financial forecast or projection has
been prepared in good faith based on assumptions that are believed by the
Company to have been reasonable at the time or times made; and provided further
that no party shall be deemed to be in breach of this Section 4.29, if (x) any
misstatement or omission is corrected by other written information provided to
Parent or its agents, or (y) any misstatement or omission is not material in
light of all of the information contained in this Agreement, the Exhibits and
Schedules attached hereto and all other written information supplied to Parent
or its agents, taken as a whole.

          4.30   KNOWLEDGE.  For purposes of the representations and warranties
contained in Sections 4.1 through 4.29 above, references to the knowledge of the
Company or the Subsidiaries or words of similar effect shall mean the items,
facts, circumstances and matters within the actual knowledge of any of the
officers or directors of the Company and its Subsidiaries, a list of whom are
set forth in Section 4.30 of the Disclosure Schedule.

                                  ARTICLE 4A.
                                  -----------

         REPRESENTATIONS AND WARRANTIES OF THE PRINCIPAL STOCKHOLDERS
         ------------------------------------------------------------

     Each Principal Stockholder severally, but not jointly, represents and
warrants to and agrees with the Parent and MergerCo as set forth below.  All
representations and warranties of each Principal Stockholder are made subject to
the exceptions with respect thereto which are noted in the Disclosure Schedule.
The representations and warranties set forth below shall be effective as of the
date that the final draft of the Disclosure Schedule is delivered to MergerCo
and Parent pursuant to Section 6.1.1, as certified in a writing executed by
Parent and each Principal Stockholder.

          4A.1   Such Principal Stockholder has the power and authority to enter
into this Agreement and each of the Stockholder Ancillary Agreements and to
carry out their respective obligations hereunder and thereunder.  The execution,
delivery and performance of this Agreement and each of the Stockholder Ancillary
Agreements by such Principal Stockholder will not conflict with or constitute a
breach, violation or default under any statute, law or administrative
regulation, or under any judgment, decree, order, writ, governmental permit or
license, any Material Contract or any other agreement, lease, indenture or
instrument to which such Principal Stockholder is a party or by which such
Principal Stockholder is bound, which breach, violation or default would have a
Material Adverse Effect on the Company and its Subsidiaries.

          4A.2   All Company Securities owned by such Principal Stockholder are
owned by such Principal Stockholder free and clear of any lien, option, security
interest, pledge or other encumbrance, proxy, voting trust, voting agreement,
judgment, charge, escrow, right of

                                       26
<PAGE>
 
first refusal or first offer, indenture, claim or transfer restriction, whether
arising by agreement or operation of law ("Claims").

          4A.3   Such Principal Stockholder does not own, directly or
indirectly, any equity interest or other securities or ownership interest in any
entity involved in a business related to or competitive in any way with the
businesses of the Company, MergerCo or the Parent.

          4A.4   Such Principal Stockholder has not taken any actions which were
calculated to dissuaded or had the effect of dissuading, any present employees,
representatives or agents of the Company from commencing an association with the
Parent or MergerCo after the Closing Date.

          4A.5   Such Principal Stockholder has reviewed the representations and
warranties made by the Company in Sections 4.1 through 4.29, inclusive and, to
the actual knowledge of such Principal Stockholder, the representations and
warranties contained in Sections 4.1 through 4.29, inclusive are true and
accurate in all material respects.

                                  ARTICLE 5.
                                  ----------

          REPRESENTATIONS AND WARRANTIES OF THE PARENT AND MERGERCO.
          --------------------------------------------------------- 

     The Parent and MergerCo, represent, warrant, covenant and agree with the
Company and the Company Stockholders as follows:

          5.1    ORGANIZATION AND STANDING; CHARTER DOCUMENTS AND BY-LAWS.  Each
of the Parent and MergerCo is a corporation duly organized, validly existing and
in good standing under the laws of the state of its incorporation.  Each of the
Parent and MergerCo is qualified, licensed or domesticated as a foreign
corporation and is in good standing in all jurisdictions where the character of
its properties owned or held under lease or the nature of its activities make
such qualification necessary, except where the failure to so qualify will not
have a Material Adverse Effect.  Each of the Parent and MergerCo has full
corporate power and authority necessary to own, lease and operate its properties
and assets and to carry on its business in the manner and in the locations as
presently conducted.

          5.2    AUTHORIZATION.  The Parent and MergerCo have the requisite
corporate power and authority to enter into and carry out the terms and
conditions of this Agreement, the Ancillary Agreements and the Stockholder
Ancillary Agreements to which they are a party and to carry out their
obligations hereunder and thereunder.  When the execution and delivery of this
Agreement and each of the Ancillary Agreements and the consummation of the
transactions contemplated hereby and thereby are duly and validly authorized by
the Parent's and MergerCo's Board of Directors, all corporate proceedings will
have been taken and no other corporate proceedings on the part of the Parent or
MergerCo are necessary to authorize the execution,

                                       27
<PAGE>
 
delivery and performance by the Parent and MergerCo of this Agreement and each
of the Ancillary Agreements.  The execution, delivery and performance of this
Agreement, each of the Ancillary Agreements and the Stockholder Ancillary
Agreements by Parent and MergerCo will not conflict with or constitute a breach,
violation or default under their respective charter documents and bylaws, any
statute, law or administrative regulation, or under any judgment, decree, order,
writ, governmental permit or license, and Material Contract or any other
agreement, lease, indenture or instrument to which Parent, any of its
Subsidiaries or MergerCo is bound, which breach, violation or default would have
a Material Adverse Effect on Parent, its Subsidiaries and MergerCo.  This
Agreement, each of the Ancillary Agreements and the Stockholder Ancillary
Agreements have been duly executed and delivered by the Parent and MergerCo and
constitute the legal, valid and binding obligations of the Parent and MergerCo,
enforceable against the Parent and MergerCo in accordance with their respective
terms, subject to the Remedies Exception.

          5.3    VALIDITY OF MERGER SHARES.  Upon delivery of the certificates
for the Merger Shares pursuant to the terms of this Agreement, due
countersignature of the certificates by Parent's transfer agent and delivery to
the Company Securityholders receiving Merger Shares pursuant to this Agreement,
the Merger Shares to be issued by the Company represented thereby will be duly
authorized and validly issued, fully paid and nonassessable.

          5.4    SEC REPORTS.  The Parent has heretofore furnished to the
Company a true and complete copy of its Registration Statement on Form S-3,
declared effective by the SEC on November 8, 1995, its Annual Reports on Form
10-K for each of the fiscal years ended December 31, 1993 and 1994 and its
Quarterly Reports on Form 10-Q for each of the fiscal quarters ended March 31,
1995, June 30, 1995 and September 30, 1995, as filed with the SEC.  Parent has
not filed prior to the date hereof, any definitive reports or statements with
the SEC since November 8, 1995 other than pursuant to Item 5 of Form 8-K and
since November 8, 1995 there does not exist any circumstance, nor has any event
occurred, which has had a Material Adverse Effect on the Parent and its
Subsidiaries.  As of their respective dates, such reports and statements
complied as to form in all material respects with the requirements applicable
thereto and did not contain any untrue statement of a material fact or omit to
state a material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances under which they were made,
not misleading.  The audited financial statements and unaudited interim
financial statements of the Parent included or incorporated by reference in such
reports have been prepared in accordance with GAAP applied on a consistent basis
(except as may be indicated therein or in the notes thereto) and fairly present
the consolidated assets, liabilities and financial position of the Parent as at
the dates thereof and the consolidated results of operations and changes in
financial position for the periods then ended, subject in the case of the
unaudited interim financial statements, to normal, recurring year-end
adjustments and any other adjustments described therein.

          5.5    NO CONSENTS.  No consent, authorization, order or approval of,
or filing with or registration with, any governmental authority, commission,
board or other regulatory

                                       28
<PAGE>
 
body of the United States or any state or political subdivision thereof, or any
other Person, is required to be made or obtained by Parent or MergerCo for or
the execution and delivery by Parent and MergerCo, of this Agreement, the
Ancillary Agreements and the Stockholder Ancillary Agreements and the
consummation by Parent and MergerCo of the transactions contemplated hereby and
thereby other than filings under the Securities Act, the Exchange Act, state
blue sky laws, the Hart Scott Act and the filing of the Certificate of Merger
with the Delaware Secretary of State.

          5.6    COMPLIANCE WITH APPLICABLE LAW.  The businesses of Parent, its
Subsidiaries and MergerCo are not being conducted in violation of any applicable
law, ordinance, regulation, decree or order of any governmental entity, except
for violations which either singly or in the aggregate do not and are not
expected to have a Material Adverse Effect on Parent, its Subsidiaries and
MergerCo.  Neither Parent, its Subsidiaries nor MergerCo is a party to or
subject to any judgment, decree, or order entered in any suit or proceeding
brought by any governmental agency or by any other Person, enjoining Parent, its
Subsidiaries or MergerCo with respect to any business practice, the acquisition
of any property, or the conduct of business in any area.

          5.7    NO BROKERS.  Neither the Parent nor MergerCo dealt with any
Person who is or may be entitled to a broker's commission, finder's fee,
investment banker's fee or similar payment for arranging the transactions
contemplated hereby or introducing the parties to each other.

          5.8    INFORMATION.  All written information provided to the Company
or its agents by or on behalf of the Parent or any of its representatives
(including, without limitation, each representation and warranty of the Parent
set forth in this Agreement) is, and the Parent covenants that any such
information provided hereafter shall be, true and correct in all material
respects and does not, or shall not, omit any material fact required to be
included therein or necessary to make the statements therein, in light of the
circumstances under which they were made, not misleading; provided, however,
                                                          --------  ------- 
that no representation or warranty is made by the Parent as to any financial
forecasts or projections previously furnished to the Company by the Parent,
except that such financial forecast or projection has been prepared in good
faith based on assumptions that are believed by the Parent to have been
reasonable at the time or times made; and provided further that no party shall
be deemed to be in breach of this Section 5.8 if (x) any misstatement or
omission is corrected by other written information provided to the Company, or
(y) any misstatement or omission is not material in light of all of the
information contained in this Agreement, the Exhibits and Schedules attached
hereto and all other written information supplied to the Company, taken as a
whole.

          5.9    REGISTRATION STATEMENT.  The Form S-3, at the time it becomes
effective under the Securities Act, will comply as to form in all material
respects with the requirements of the Securities Act, and will not contain any
untrue statement of a material fact, or omit to state any material fact required
to be stated therein or necessary in order to make the

                                       29
<PAGE>
 
statements therein not false or misleading provided, however, that this
provision shall not apply to any statement or omission made in reliance upon and
in conformity with information furnished to the Parent by the Company in writing
for inclusion in the Registration Statement (including for this purpose all
information regarding the Company contained in the Registration Statement, to
which the Company has given its written approval as regards such Company
information (the "Company Information Written Approval")).


                                  ARTICLE 6.
                                  ----------

               PRE-MERGER COVENANTS OF THE PARENT, THE COMPANY,
               ------------------------------------------------
                   THE PRINCIPAL STOCKHOLDERS AND MERGERCO.
                   --------------------------------------- 

     Each of the Parent, the Company, the Principal Stockholders and MergerCo
covenant and agree with the others that:

          6.1    CONDUCT OF BUSINESS OF THE COMPANY.  Prior to the Effective
Time, except as contemplated by this Agreement, unless the other party has
consented in writing thereto, the Company (i) shall, and shall cause its
Subsidiaries to conduct its and their respective operations according to its
ordinary and usual course of business, (ii) shall use its reasonable efforts,
and shall cause each of its Subsidiaries to use its reasonable efforts, to
preserve intact its respective business organizations and goodwill, keep
available the services of its respective officers and employees and maintain
satisfactory relationships with those persons having business relationships with
it, (iii) shall not propose, adopt, or authorize any amendment to the Company
Organizational Documents except as provided for in this Agreement, (iv) shall
promptly notify the Parent of any emergency or other material change in the
Company's business, properties, assets or liabilities or in the operation of its
properties and of any governmental complaints, investigations or hearings (or
communications indicating that the same may be contemplated) or the breach in
any material respect of any representation or warranty contained herein, (v)
shall use commercially reasonable efforts to avoid actions which to the
Company's knowledge would prevent treatment of the Merger on a pooling of
interests basis, (vi) shall not (A) except pursuant to the exercise of Company
Purchase Rights existing on the date hereof and disclosed in this Agreement or
expressly permitted to be issued after the date hereof by the terms of this
Agreement, authorize, issue, sell, pledge, encumber or agree to authorize,
issue, sell, pledge or encumber any additional shares of its capital stock of
any class or any other securities in respect of, in lieu of or in substitution
of common stock outstanding as of the date hereof, (B) effect any stock split,
combination, recapitalization or otherwise change its capitalization as it
existed on the date hereof, (C) grant, confer or award any option, warrant,
conversion right or other right not existing on the date hereof to acquire any
shares of its capital stock of any class or any other securities in respect of,
in lieu of or in substitution of common stock outstanding as of the date hereof,
(D) redeem or otherwise acquire any of its outstanding equity securities or any
outstanding options or rights to purchase any such equity securities or make any
commitment to take such action, or, (E) declare, set aside or pay any dividend
or

                                       30
<PAGE>
 
distribution payable in cash, stock or property with respect to shares of its
common stock or other securities, (vii) shall not knowingly authorize,
recommend, or propose, or announce an intention to propose, any transaction, or
enter into any agreement or arrangement with any other party, that could have a
Material Adverse Effect on it, (viii) shall not and shall not authorize any
Subsidiary to, (A) acquire any assets, other than in the ordinary course of
business consistent with past practice, (B) dispose of or encumber any assets
other than in the ordinary course of business consistent with past practice or
relinquish, forfeit or waive any right under any agreement, license, lease, deed
or other instrument that is material to its business or operations as presently
conducted or proposed to be conducted, or (C) incur any indebtedness for
borrowed money, or assume, guarantee or otherwise as an accommodation become
responsible for, the obligations of any other Person, or enter into any other
transaction other than in the ordinary course of business consistent with past
practice, (ix) shall not adopt, or amend to increase materially compensation or
benefits payable under, any collective bargaining, bonus, profit sharing,
compensation, stock option, pension, retirement, deferred compensation,
employment or consulting or other plan, agreement, trust, fund or arrangement
for the benefit of employees except for normal increases consistent with past
practice and the payment of cash bonuses to officers pursuant to and consistent
with existing plans or programs, (x) shall not enter into any transaction
involving an obligation in excess of $25,000, except for obligations in
connection with this Agreement and transactions disclosed in the Disclosure
Schedule, and (xi) shall not enter into any agreement, document or instrument
which would constitute a Material Contract hereunder.

          6.2    INSPECTION OF RECORDS.  From the date hereof to the Effective
Time, the Company shall allow the duly authorized and appropriate officers,
attorneys, accountants and other representatives of Parent access at all
reasonable times and upon reasonable notice to the records and files,
correspondence, audits and properties, as well as to all information relating to
commitments, contracts, titles and financial position, or otherwise pertaining
to, the business and affairs of the Company and its Subsidiaries.  Any
information obtained by Parent through such officers, attorneys, accountants and
other representatives shall be subject to the confidentiality agreement between
the Company and Parent previously entered into.

          6.3    STOCKHOLDER APPROVAL.  The Company shall take all necessary or
appropriate action under Delaware Law and the Company Organizational Documents
to call a meeting of its stockholders (or to take such action by written
consent), to be held at the earliest practicable date, and the Company shall use
commercially reasonable efforts to cause such meeting or vote by written consent
to occur on or prior to March 31, 1996 to consider and vote on a proposal to
approve this Agreement, the Merger and the transactions contemplated hereby and
thereby.

          6.4    PRINCIPAL STOCKHOLDER APPROVAL.  Each Principal Stockholder
covenants and agrees (i) to vote at the meeting of Company Stockholders or by
written consent, as the case may be, to approve this Agreement, the Merger and
the transactions contemplated hereby, (ii) that such Principal Stockholder will
not exercise, and hereby waives, his dissenters

                                       31
<PAGE>
 
rights under Section 262 of the Delaware Law with respect to any of his Company
Securities, and (iii) such Principal Stockholder will execute the Investment
Letter referred to in Section 7.11 hereof in a form reasonably acceptable to the
Company, each Principal Stockholder and Parent.

          6.5    PARENT BOARD APPROVAL.  Parent shall take all necessary or
appropriate action under Delaware Law and its Certificate of Incorporation and
Bylaws to call a meeting of its Board of Directors (or to take such action by
unanimous written consent) within fourteen (14) days after the date hereof, to
consider and vote on the terms of the Merger and the execution of this
Agreement.  If Parent's Board of Directors does not approve the terms of this
Agreement and the execution hereof within such fourteen day period then the
Company shall have the right to immediately terminate this Agreement without any
further obligation hereunder.  It is expressly understood and agreed that the
Board of Directors of Parent shall have no obligation to consider the
authorization of the Closing under this Agreement until the fourth business day
following the delivery by the Company to the Parent of the audited financial
statements of the Company for the period ended December 31, 1995.

          6.6    RULE 145 AFFILIATES.  Prior to the Effective Time, the Company
shall deliver to Parent a letter identifying all persons who were, in the
Company's reasonable judgment, at the record date for its stockholders meeting
(or the record date for receipt of a written consent) to approve this Agreement
and the Merger, "affiliates" of the Company for purposes of Rule 145 under the
Securities Act.  Each of the Principal Stockholders who are such "affiliates"
will deliver to Parent on or prior to the Effective Time a written agreement
(the "Affiliate Letter") substantially in the form attached as Exhibit 6.6 and
                                                               -----------    
in connection therewith each Principal Stockholder agrees that, prior to the
consummation of the Merger, such Principal Stockholder will not transfer in any
way any of the Company Securities held by such Principal Stockholder or any
interest therein.

          6.7    REORGANIZATION.  From and after the date hereof and until the
Effective Time, neither the Parent, the Company, MergerCo nor any of their
respective Subsidiaries or other Affiliates shall knowingly take any action, or
knowingly fail to take any action, that would jeopardize qualification of the
Merger as a reorganization with the meaning of Section 368(a) of the Code.
Following the Effective Time, the Parent shall use its best efforts to conduct
its business, in a manner that would not jeopardize the characterization of the
Merger as a reorganization within the meaning of Section 368(a) of the Code.

          6.8    FILINGS; OTHER ACTION.  Subject to the terms and conditions
herein provided, the Parent, the Company and MergerCo shall: (a) promptly make
their respective filing and thereafter make any other required submissions under
the Hart Scott Act (if required) with respect to the Merger; (b) use all
reasonable efforts to cooperate with one another in (i) determining which
filings are required to be made prior to the Effective Time with, and which
consents, approvals, permits or authorizations are required to be obtained prior
to the Effective Time in connection with the execution and delivery of this
Agreement and the consummation of the transactions contemplated hereby and (ii)
timely making all such filings and

                                       32
<PAGE>
 
timely seeking all such consents, approvals, permits or authorizations; and (c)
use all reasonable efforts to take, or cause to be taken, all other action and
do, or cause to be done, all other things necessary, proper or appropriate to
consummate and make effective the transactions contemplated by this Agreement.
If, at any time after the Effective Time, any further action is necessary or
desirable to carry out the purpose of this Agreement, the proper officers and
directors of the Parent and the Principal Stockholders shall take all such
necessary action.

          6.9    PUBLICITY.  Parent, the Company and MergerCo shall, subject to
the Parent's legal obligations applicable to public companies, issue the press
release attached hereto as Exhibit 6.9, which press release has been mutually
                           -----------                                       
agreed to by Parent, the Company and MergerCo.

          6.10   ACQUISITION PROPOSALS.  Prior to the Effective Time, the
Company agrees and each of the Principal Stockholders severally, and not
jointly, agree (a) that neither the Company nor any of its Subsidiaries nor any
of the Principal Stockholders shall, and it shall direct and use its best
efforts to cause its officers, directors, employees, agents and representatives
(including, without limitation, any investment banker, attorney or accountant
retained by it) not to, initiate, solicit or encourage, directly or indirectly,
any inquiries or the making or implementation of any proposal or offer
(including, without limitation, any proposal or offer to its stockholders) with
respect to a merger, acquisition, consolidation or similar transaction
involving, or any purchase of all or any significant portion of the assets or
any equity securities of, the Company or any of its Subsidiaries (any such
proposal or offer being hereinafter referred to as a "Acquisition Proposal") or
engage in any negotiations concerning, or provide any confidential information
or data to, or have any discussions with, any person relating to an Acquisition
Proposal, or otherwise facilitate any effort or attempt to make or implement an
Acquisition Proposal; (b) that it will immediately cease and cause to be
terminated any existing activities, discussions or negotiations with any parties
conducted heretofore with respect to any of the foregoing and will take the
necessary steps to inform the individuals or entities referred to above of the
obligations undertaken in this Section 6.10; and (c) that it will notify the
Parent and MergerCo immediately if any such inquiries or proposals are received
by, any such information is received from, or any such negotiations or
discussions are sought to be initiated or continued with, it.

          6.11   DISCLOSURE SCHEDULE.  The Disclosure Schedule is not attached
to this Agreement at the time (the "Sign Date") this Agreement is signed by the
Company, the Principal Stockholders, Parent and MergerCo (collectively, the
"Signing Parties").  The failure to attach the Disclosure Schedule at the Sign
Date does not affect the binding obligations of the parties under this
Agreement.  It is the obligation of the Company to deliver the Disclosure
Schedule to Parent to be attached to this Agreement within twenty-one (21) days
of the Sign Date.  The representations and warranties set forth in Articles 4
and 4A shall be effective as of the date that the final draft of the Disclosure
Schedule is delivered to MergerCo and Parent pursuant to this Section 6.11, as
certified in a writing executed by Parent, the Company and each Principal
Stockholder.  In the event the Company or any Principal Stockholder fails to
deliver their

                                       33
<PAGE>
 
respective sections of the Disclosure Schedule within the time period set forth
in this Section, then the representations and warranties set forth in Article 4
and 4A, respectively, shall be deemed complete and accurate and not subject to
any conditions or exceptions not stated in Article 4 and 4A.

          6.12   EXHIBITS AND SCHEDULES.  Exhibits 2.3, 6.5, 7.1, 8.1, 7.10 and
8.7 and Schedules 1.33 and 4.3 are not attached to this Agreement at the Sign
Date.  The failure to attach Exhibits 2.3, 6.5, 7.1, 8.1, 7.10 and 8.7 and
Schedules 1.33 and 4.3 at the Sign Date does not affect the binding obligations
of the parties under this Agreement.  The Company, the Principal Stockholders,
Parent and MergerCo agree to cooperate with one another and negotiate in good
faith with the object of mutually agreeing to the form of such Exhibits and
Schedules within twenty-one (21) days of the Sign Date.

          6.13   NO TRANSFER OF COMPANY SECURITIES.  The Principal Stockholders
agree that, prior to the consummation of the Merger, they will not transfer in
any way any of the Company Securities held by them or any interest therein.

          6.14   MERGER TAX MATTERS.  The parties hereto agree that neither
Parent, MergerCo, nor any of their respective subsidiaries, nor their officers,
directors, agents, or representatives have made any representation or warranty
with respect to the tax consequences of the Merger for the Company
Securityholders.  Notwithstanding the foregoing, Parent and MergerCo acknowledge
that the Company's legal counsel may require certain certificates as to factual
matters from the Parent and MergerCo in order to deliver the tax opinion
described in Section 7.9 and each of Parent and MergerCo hereby agrees to
deliver any such certificate reasonably requested by such counsel but only to
the extent the matters to be certified to are true and accurate to the knowledge
of Parent and MergerCo.

          6.15   EXEMPTION OR REGISTRATION OF MERGER SHARES.  The Parent
covenants and agrees that it will take any and all necessary actions to perfect
any available exemption under the federal securities laws or, if none is
available, use its best efforts to cause the issuance of the Merger Shares to be
registered under the Securities Act in each case prior to the Effective Time.


                                  ARTICLE 7.
                                  ----------

                 CONDITIONS PRECEDENT TO MERGER OBLIGATION OF
                 --------------------------------------------
              THE COMPANY AND EACH OF THE PRINCIPAL STOCKHOLDERS.
              -------------------------------------------------- 

     The obligation of the Company and the Principal Stockholders to consummate
the Merger and to execute and deliver the Ancillary Documents and the
Stockholder Ancillary Documents

                                       34
<PAGE>
 
is, at the option of the Company and the Principal Stockholders, subject to
satisfaction and fulfillment of the following conditions:

          7.1    OPINION OF COUNSEL FOR THE PARENT AND MERGERCO.  The Company
Securityholders shall have received an opinion of Troop Meisinger Steuber &
Pasich, LLP, counsel for the Parent and MergerCo, dated the Effective Date, in
form and substance reasonably satisfactory to the Company and its counsel,
containing the opinions set forth in Exhibit 71.
                                     ----------- 

          7.2    COMPLIANCE BY THE PARENT; REPRESENTATIONS AND WARRANTIES
CORRECT.  All of the terms and conditions of this Agreement, the Ancillary
Agreements and the Stockholder Ancillary Agreements to be complied with and
performed by the Parent and MergerCo at or before the Effective Time shall have
been complied with and performed in all material respects, and the
representations and warranties made by the Parent and Mergerco in this
Agreement, the Ancillary Agreements and the Stockholder Ancillary Agreements
shall be correct in all material respects at and as of the Effective Time with
the same force and effect as though such representations and warranties had been
made at and as of the Effective Time, except for changes contemplated or
permitted in this Agreement and the Ancillary Agreements and changes in the
ordinary and usual course of the Parent's business.  The Parent and MergerCo
shall have delivered to the Company a certificate, dated the Closing Date and
signed on behalf of the Parent and MergerCo by one or more of its executive
officers, certifying to the satisfaction and fulfillment of these conditions.

          7.3    GOVERNMENTAL AND REGULATORY CONSENTS.  (i) The waiting period
applicable to the consummation of the Merger under the Hart Scott Act shall have
expired or been terminated and, (ii) all filings required to be made prior to
the Effective Time by Parent, MergerCo or the Company with, and all consents,
approvals, orders, registrations and authorizations required to be obtained
prior to the Effective Time by Parent, MergerCo or the Company from governmental
and regulatory authorities in connection with the execution and delivery of this
Agreement by Parent, MergerCo or the Company and the consummation of the
transactions contemplated hereby by Parent, MergerCo and the Company shall have
been made or obtained (as the case may be), except where the failure to have
obtained or made such consent, filing, authorization, order, approval or
registration would not have a Material Adverse Effect on Parent, MergerCo or the
Company.

          7.4    CONSENTS.  The Parent and MergerCo shall have obtained all
consents, permits and approvals required, in the reasonable opinion of counsel
for the Company, as a condition to the lawful consummation of the Merger and of
the transactions contemplated in this Agreement, or as necessary to avoid a
breach of or default under any material agreement to which the Company, its
Subsidiaries, MergerCo, any of the Principal Stockholders or the Parent is a
party.

                                       35
<PAGE>
 
          7.5    BLUE SKY REQUIREMENTS.  All permits, licenses, consents and
approvals necessary under any state securities laws for the issuance of the
Merger Shares shall have been issued or given, and no such permit, license,
consent or approval shall have been revoked, cancelled, terminated, suspended or
made the subject of any "stop order" or proceeding therefor.

          7.6    EXEMPTION OR REGISTRATION OF MERGER SHARES.  At or prior to the
Effective Time, the issuance of the Merger Shares will be registered under the
Securities Act or the issuance of the Merger Shares will be exempt therefrom.

          7.7    LITIGATION.  No court or governmental or regulatory authority
of competent jurisdiction shall have enacted, issued, promulgated, enforced or
entered any statute, rule, regulation, judgment, decree, injunction or other
order (whether temporary, preliminary or permanent) (collectively, an "Order")
which is in effect and makes illegal or prohibits consummation of the
transactions contemplated by this Agreement; provided that the Company shall
have used reasonable efforts to obtain the removal of any Order.

          7.8    NO MATERIAL ADVERSE CHANGES.  There does not exist any
circumstance and has not occurred any event which has had or could have a
Material Adverse Effect on the Parent and its Subsidiaries.

          7.9    TAX OPINION.  The Company shall have received the opinion of
Latham & Watkins, counsel to the Company, dated the Effective Date, to the
effect that the merger will be treated for Federal income tax purposes as a
reorganization within the meaning of Section 368(a) of the Code, and that the
Company will be a party to that reorganization within the meaning of Section
368(b) of the Code.

          7.10   ESCROW OF MERGER CONSIDERATION.  At or prior to the Effective
Time, Parent shall have executed and delivered an escrow instrument in the form
of the Escrow Instrument attached as Exhibit 7.10 and shall have taken such
                                     ------------                          
other action as is necessary so that 10% of the Merger Shares is or may be
placed in escrow pursuant to the Escrow Instrument.  The Escrow Agent under the
Escrow Instrument shall be such person as is selected by the Parent and approved
by the Company, which approval shall not be unreasonably withheld.  The Merger
Shares placed in Escrow, subject to any claims asserted by the Parent under the
Escrow Instructions, shall be released from Escrow on the first anniversary of
the Closing Date pursuant to the terms of the Escrow Instrument.

          7.11   INVESTMENT LETTER.  Prior to the Closing Date, Parent and the
Company shall have received an investment letter (the "Investment Letter") from
all Company Securityholders receiving Merger Shares pursuant to this Agreement
which contains standard investment representations and warranties relating to
the private placement exemption, an acknowledgement of the provisions of the
Escrow Instrument and the last sentence of Section 9.2.1 hereof, and a release
of any claim for breach of fiduciary duty or otherwise against the

                                       36
<PAGE>
 
Company or any officer or director thereof (including the Company's officers and
directors prior to the Effective Time).


                                  ARTICLE 8.
                                  ----------

                   CONDITIONS PRECEDENT TO MERGER OBLIGATION
                   -----------------------------------------
                          OF THE PARENT AND MERGERCO.
                          -------------------------- 

     The obligation of the Parent and MergerCo to consummate the Merger and to
execute and deliver the Ancillary Documents and the Stockholder Ancillary
Documents is, at the option of the Parent and MergerCo, subject to satisfaction
and fulfillment of the following conditions:

          8.1    OPINION OF COUNSEL FOR THE COMPANY.  The Parent shall have
received an opinion of Latham & Watkins, counsel for the Company, dated the
Effective Date, in form and substance reasonably satisfactory to the Parent and
its counsel containing the opinions set forth in Exhibit 8.1.
                                                 ----------- 

          8.2    COMPLIANCE BY THE COMPANY AND THE PRINCIPAL STOCKHOLDERS;
REPRESENTATIONS AND WARRANTIES CORRECT.  All of the terms and conditions of this
Agreement, the Ancillary Agreements and the Stockholder Ancillary Agreements to
be complied with and performed by the Company and each of the Principal
Stockholders at or before the Effective Time shall have been complied with and
performed in all material respects, and the representations and warranties made
by the Company and each of the Principal Stockholders in this Agreement, the
Ancillary Agreements and the Stockholder Ancillary Agreements shall be correct
in all material respects at and as of the Effective Time with the same force and
effect as though such representations and warranties had been made at and as of
the Effective Time, except for changes contemplated or permitted in this
Agreement, the Ancillary Agreements and the Stockholder Ancillary Agreements and
changes in the ordinary and usual course of the Company's and its Subsidiaries'
businesses.  The Company and each Principal Stockholder shall have delivered to
the Parent and MergerCo a certificate, dated the Closing Date and signed on
behalf of the Company by its chief executive officer and its chief financial
officer, certifying to the satisfaction and fulfillment of these conditions.

          8.3    ESTOPPEL CERTIFICATES AND NON-DISTURBANCE AGREEMENTS.  On or
prior to the Effective Date, the following shall have been received by the
Parent:  (a) written confirmations, in form and substance reasonably
satisfactory to the Parent, from the landlords of the Company's leased real
properties whose consent to the Merger is required under the applicable lease or
from landlords who are reasonably identified by Parent confirming that the
leases relating to such properties have been duly executed, witnessed and
acknowledged by the landlords, that the leases remain in full force and effect,
that all obligations, rentals and other payments owed by or accruing from the
Company under the leases are satisfied and current, that no events of default
have occurred that remain uncured, that the leases have not been amended

                                       37
<PAGE>
 
or modified, or, if they have been amended or modified, the date of each
amendment or modification, and that the properties subject to the leases are not
subject to any mortgages or deeds of trust or, if they are subject to one or
more mortgages or deeds of trust, the name of the holder of each such mortgage
or deed of trust and the date, title and original mortgagee or beneficiary of
each such mortgage or deed of trust and (b) non-disturbance agreements, in form
and substance reasonably satisfactory to the Parent, from the mortgagees of the
real properties which are the subject of such leases.

          8.4    DUE DILIGENCE.  Parent shall have completed and approved to its
sole satisfaction customary business and legal due diligence with respect to the
Company, its Subsidiaries and their respective businesses; provided, however, if
                                                           --------  -------    
Parent does not deliver written notice to the Company of the failure of this
condition on or prior to that date which is four business days following
delivery to Parent of the Company's audited financial statements for the year
ended December 31, 1995, this condition shall be deemed to be satisfied.

          8.5    HART SCOTT ACT FILING.  Prior to the Effective Time, the
waiting period in connection with the Hart Scott Act filing shall have expired.
 
          8.6    CONSENTS.  The Company, MergerCo, the Principal Stockholders
and the Parent shall have obtained all consents, permits and approvals required,
in the reasonable opinion of counsel for the Parent, as a condition to the
lawful consummation of the Merger and of the transactions contemplated in this
Agreement, or as necessary to avoid a breach of or default under any material
agreement to which the Company, its Subsidiaries, MergerCo, or the Parent is a
party.

          8.7    NON-COMPETITION AGREEMENTS.  At or before the Effective Time,
all of the Principal Stockholders (such Principal Stockholders hereby agreeing
to do so) shall each have executed and delivered to the Parent a Non-Competition
Agreement (the "Non-Competition Agreement") in the form of Non-Competition
Agreement attached as Exhibit 8.7 (in this regard, the "Restricted Period" and
                      -----------                                             
the "Restricted Territory" with respect to each such Principal Stockholder shall
be the period and territory, respectively, set forth in Section 8.7 of the
Disclosure Schedule).

          8.8    BLUE SKY REQUIREMENTS.  All permits, licenses, consents and
approvals necessary under any state securities laws for the issuance of the
Merger Shares shall have been issued or given, and no such permit, license,
consent or approval shall have been revoked, cancelled, terminated, suspended or
made the subject of any "stop order" or proceeding therefor.

          8.9    ACCOUNTING TREATMENT.  The Parent shall have received a letter,
dated the Effective Date, from Arthur Andersen LLP, the Parent's independent
certified public accountants, which shall be satisfactory to the Parent, stating
without qualification the accounting for the business combination contemplated
in this Agreement and the Ancillary Agreements as a "pooling of interests" and
will be in accordance with generally accepted accounting principles

                                       38
<PAGE>
 
and the applicable pronouncements and interpretations thereof of the Accounting
Principles Board (APB) of the American Institute of Certified Public
Accountants, the Financial Accounting Standards Board (FASB) and the SEC in
effect on the Effective Date ("Pooling Accounting Treatment").

          8.10   ESCROW OF MERGER CONSIDERATION.  At or prior to the Effective
Time, the Company shall have executed and delivered an escrow instrument on
behalf of the Company Stockholders in the form of the Escrow Instrument attached
as Exhibit 7.10 and shall have taken such other action as is necessary so that
   ------------                                                               
10% of the Merger Shares is or may be placed in escrow pursuant to the Escrow
Instrument.  The Escrow Agent under the Escrow Instrument shall be such person
as is selected by the Parent and approved by the Company, which approval shall
not be unreasonably withheld.  The Merger Shares placed in Escrow, subject to
any claims asserted by the Parent under the Escrow Instructions, shall be
released from Escrow on the first anniversary of the Closing Date.  Parent
acknowledges that it shall be solely responsible for the fees of the Escrow
Agent incurred in connection with the Escrow.

          8.11   COMPANY STOCKHOLDERS APPROVAL.  Prior to the Effective Time,
the Company Securityholders shall have approved the Merger in accordance with
the Delaware Law.  Additionally, no Company Securityholders, other than
Dissenters who would be entitled to receive in the Merger in the aggregate less
than 5% of the Merger Shares in exchange for all of their Company Securities if
they were not Dissenters, shall have validly exercised their appraisal rights
under Section 262 of the Delaware Law.

          8.12   PARENT BOARD OF DIRECTOR APPROVAL.  Prior to the Effective
Time, Parent's Board of Directors shall have approved the Merger in accordance
with Delaware Law.

          8.13   RESIGNATION OF COMPANY OFFICERS AND DIRECTORS.  Prior to the
Effective Time, each of the members of the Board of Directors of the Company and
its Subsidiaries shall have executed letters of resignation.

          8.14   COMPANY CERTIFICATE REGARDING COMPANY SECURITIES.  The Parent
shall have received from the Company an executed certificate certifying to the
Parent (a) the aggregate number of outstanding Company Common Shares, (b) the
aggregate number of Company Common Shares with respect to which appraisal rights
have been validly exercised under Section 262 of the Delaware Law along with the
identification of the Company Securityholders who have so exercised such
appraisal rights and a representation as to whether or not each such Company
Securityholder qualifies as a Dissenter and (c) the aggregate number of
outstanding Company Preferred Shares, all immediately prior to the Effective
Time.

          8.15   COMPANY AFFILIATE'S LETTERS.  All of the Company Affiliates
(any Principal Stockholders who are Company Affiliates hereby agreeing to do so)
shall have executed and delivered to the Parent the Company Affiliate's Letter.

                                       39
<PAGE>
 
          8.16   CONTINUED EMPLOYMENT OF KEY MANAGERS.  Prior to the Effective
Time, each of Rick Watson and Barry Watson shall have (x) terminated their
respective employment agreements with the Company for the sole consideration of
20,000 and 10,000 shares of Parent Common Stock, respectively, and (y) provided
a general release to the Company of any other claim they might have against the
Company or its Subsidiaries arising out of their employment with the Company and
(z) agreed to remain in the employ of the Surviving Corporation for a minimum of
twelve months following the Closing.  By execution of this Agreement, each of
Rick Watson and Parent hereby agree to the foregoing and each agrees to
negotiate in good faith to reach agreement on the form and substance of the
Agreements necessary to implement the foregoing.

          8.17   INVESTMENT LETTER.  Prior to the Closing Date, Parent and the
Company shall have received Investment Letters from all Company Securityholders
receiving Merger Shares pursuant to this Agreement which contains standard
investment representations and warranties relating to the private placement
exemption, an acknowledgement of the provisions of the Escrow Instrument and the
last sentence of Section 9.2.1 hereof, and a release of any claim for breach of
fiduciary duty or otherwise against the Company or any officer or director
thereof (including the Company's officers and directors prior to the Effective
Time).

          8.18   NO ADVERSE CHANGES.  There does not exist any circumstance and
has not occurred any event which has had a Material Adverse Effect on the
Company or its Subsidiaries.


                                  ARTICLE 9.
                                  ----------

                            POST-CLOSING COVENANTS
                            ----------------------

          9.1    INDEMNIFICATION.

                 9.1.1   GENERAL.  From and after the Effective Time, the
parties shall indemnify each other as provided in this Section 9.1. As used in
this Agreement, (a) the term "Damages" shall mean all liabilities, demands,
claims, actions or causes of action, regulatory, legislative or judicial
proceedings or investigations, assessments, levies, losses, fines, penalties,
damages, costs and expenses, including without limitation reasonable attorneys',
accountants', investigators', and experts' fees and expenses, sustained or
incurred in connection with the defense or investigation of any claim; (b) the
term "Indemnified Party" shall mean a party who is entitled to indemnification
from a party hereto pursuant to this Section 9.1; (c) the term "Indemnifying
Party" shall mean a party hereto who is required to provide indemnification
under this Article 9 to another party; and (d) the term "Third Party Claim"
shall mean any claim, action, suit, proceeding, investigation or like matter
which is asserted or threatened by a party other than the parties hereto, their
successors and permitted assigns, against any Indemnified Party or to which any
Indemnified Party is subject.

                                       40
<PAGE>
 
                 9.1.2   THE COMPANY INDEMNIFICATION OBLIGATIONS; ESCROW
INSTRUMENT.  The Company shall indemnify, save and keep the Parent, MergerCo,
its officers, directors, employees, partners and stockholders (each a "Parent
Indemnitee" and collectively, the "Parent Indemnitees") harmless against and
from all Damages sustained or incurred by any Parent Indemnitee, as a result of
or arising out of or by virtue of:

                         (a)  any inaccuracy in or breach of any representation
and warranty made by the Company to the Parent or MergerCo herein or in any of
the Ancillary Agreements delivered to the Parent or MergerCo in connection
herewith; and

                         (b)  the breach by the Company of, or failure of the
Company to comply with, any of the covenants or obligations under this Agreement
or any of the Ancillary Agreements to be performed by the Company (including,
without limitation, their obligations under this Section 9.1).

     The Company and Parent shall enter into the Escrow Instrument as of the
date of the Closing and deposit the Escrow Shares therein for the purpose of
securing the indemnity obligations of the Company under this Section 9.1.2.

                 9.1.3   EACH PRINCIPAL STOCKHOLDER'S INDEMNIFICATION
OBLIGATIONS.  Each Principal Stockholder shall indemnify severally, and not
jointly, and save and keep the Parent Indemnitees harmless against and from all
Damages sustained or incurred by any Parent Indemnitee, as a result of or
arising out of or by virtue of:

                         (a)  any inaccuracy in or breach of any representation
and warranty made by such Principal Stockholder to the Parent or MergerCo
pursuant to Article 4A or in any Stockholder Ancillary Agreement delivered to
the Parent or MergerCo in connection herewith; and

                         (b)  the breach by such Principal Stockholder of, or
failure of such Principal Stockholder to comply with, any of the covenants or
obligations under this Agreement or of the Stockholder Ancillary Agreements to
be performed by such Principal Stockholder (including, without limitation, such
Principal Stockholder's obligations under this Section 9.1).

                 9.1.4   THE PARENT INDEMNIFICATION OBLIGATIONS TO THE COMPANY
SECURITYHOLDERS.  The Parent shall indemnify, save and keep the Company
Securityholders and their heirs, successors and permitted assigns (individually
a "Company Indemnitee" and collectively, the "Company Indemnitees") harmless
against and from all Damages sustained or incurred by any Company Indemnitee as
a result of or arising out of or by virtue of:

                         (a)  any inaccuracy in or breach of any representation
and warranty made by the Parent or MergerCo to the Company Securityholders
herein or in any

                                       41
<PAGE>
 
Ancillary Agreements or Stockholder Ancillary Agreements delivered to the
Company Securityholders in connection herewith;

                         (b)  any breach by the Parent or MergerCo of, or
failure by the Parent or MergerCo to comply with, any of the covenants or
obligations under this Agreement or any of the Ancillary Agreements to be
performed by the Parent or MergerCo (including without limitation its
obligations under this Section 9.1); or

                         (c)   the operation of the business of the Company or
any of its Subsidiaries from and after the Effective Time but only to the extent
such Damages are not proximately caused by any of the events described in
Sections 9.1.2 or (b) or Sections 9.1.3 or (b).

                 9.1.5   LIMITATION ON INDEMNIFICATION OBLIGATIONS.

                         (a)  The Company's, each Principal Stockholder's and
the Parent's obligations pursuant to Sections 9.1.2, 9.1.3 and 9.1.4,
respectively, are subject to the following limitations:

                              (i)    No Indemnified Party shall be entitled to
recover under this Section 9.1 other than with respect to the Special Provisions
unless a claim has been asserted by written notice, setting forth the basis for
such claim (a "Notice of Loss"), delivered to the Indemnifying Party on or prior
to the date (the "Applicable Date") as is the earlier to occur of (i) the date
of issuance of the first independent audit report of Parent which includes any
period ending after the Effective Time or (ii) the first anniversary of the
Closing Date. The Special Provisions shall mean the provisions of Section 4A.1,
4A.2, 6.15, 9.1.5 and 9.2.

                              (ii)   Notwithstanding anything to the contrary
herein contained, the Company Securityholders shall not be obligated hereunder
with respect to any Damages other than with respect to the Special Provisions to
the extent that such Damages exceed the value of the Escrow Shares. The Company
Securityholders shall have no right of contribution against the Company or
against Parent or any of their respective Subsidiaries by reason or arising from
any claim asserted by an Indemnified Party under Section 9.1.2.

                              (iii)  the Parent Indemnitees shall not be
entitled to recover for any Damages other than with respect to the Special
Provisions until such time as the Damages claimed by all Parent Indemnitees in
the aggregate exceed $150,000, at which time all claims for Damages of any one
or more Parent Indemnitees for indemnification may be asserted, including claims
for Damages included in the initial $150,000.

                         (b)  Notwithstanding anything to the contrary herein
contained, the limitations contained in Section 9.1.5 shall not apply to any
claim for Damages to the extent it arises out of fraud or intentional
misrepresentation.

                                       42
<PAGE>
 
                 9.1.6   RELEASE.  As a condition to the Merger, each Company
Stockholder and each officer and director of the Company and its Subsidiaries
shall deliver to Parent, MergerCo and the Company effective as of the Closing
Time, a general release in a form reasonably satisfactory to Parent of the
Company and its Subsidiaries from all claims which such Principal Stockholder,
officer or director have against the Company or any Subsidiary on any account
other than rights specifically granted under this Agreement, which general
release shall be included in the Investment Letter.

                 9.1.7   ESCROW SHARES.  If the Escrow Instrument is in effect
at the time of an assertion of indemnification is made by the Parent
Indemnitees, the obligations of the Company and the Principal Stockholders
hereunder with respect to the Damages (other than with respect to the Special
Provisions) shall first be satisfied by the distribution to the Parent
Indemnitee of Escrow Shares held pursuant to the Escrow Instrument. After there
are no Escrow Shares (or other assets) held pursuant to the Escrow Instrument,
the Company and the Principal Stockholders shall be obligated to satisfy their
obligations by the payment of cash to the Parent Indemnitees.

                 9.1.8   THIRD PARTY CLAIMS OTHER THAN TAXES.  Forthwith
following the receipt of notice of a Third Party Claim (other than a Third Party
Claim with respect to Taxes), the party receiving the notice of the Third Party
Claim shall (i) notify the other party of its existence setting forth with
reasonable specificity the facts and circumstances of which such party has
received notice and (ii) if the party giving such notice is an Indemnified
Party, specifying the basis hereunder upon which the Indemnified Party's claim
for indemnification is asserted. The Indemnified Party shall, upon reasonable
notice, tender the defense of a Third Party Claim to the Indemnifying Party. If:

                         (a)  the defense of a Third Party Claim so tendered is
accepted without qualification (or reservation of rights) by the Indemnifying
Party within thirty (30) days thereafter such tender; or

                         (b)  within thirty (30) days after the date on which
written notice of a Third Party Claim has been given pursuant to this Section
9.1.8, the Indemnifying Party shall acknowledge in writing to the Indemnified
Party and without qualification (or reservation of rights) its indemnification
obligations as provided in this Section 9.1.8;

                         (c)  the defense of a Third Party Claim is accepted by
the Indemnifying Parties pursuant to Section 9.1.8(a) or (b) above, then, except
as hereinafter provided, the Indemnified Party shall not, and the Indemnifying
Party shall, have the right to contest, defend, litigate or settle such Third
Party Claim. The Indemnified Party shall have the right to be represented by
counsel at its own expense in any such contest, defense, litigation or
settlement conducted by the Indemnifying Party provided that the Indemnified
Party shall be entitled to reimbursement therefor if the Indemnifying Party
shall lose its right to contest, defend, litigate and settle the Third Party
Claim as herein provided. The Indemnifying Party

                                       43
<PAGE>
 
shall lose its right to defend and settle the Third Party Claim if it shall fail
to diligently contest the Third Party Claim.  So long as the Indemnifying Party
has not lost its right and/or obligation to contest, defend, litigate and settle
as herein provided, the Indemnifying Party shall have the exclusive right to
contest, defend and litigate the Third Party Claim and shall have the exclusive
right, in its discretion exercised in good faith, and upon the advice of
counsel, to settle any such matter, either before or after the initiation of
litigation, at such time and upon such terms as it deems fair and reasonable,
provided that at least ten (10) days prior to any such settlement, written
notice of its intention to settle shall be given to the Indemnified Party.  All
expenses (including without limitation attorneys' fees) incurred by the
Indemnifying Party in connection with the foregoing shall be paid by the
Indemnifying Party.  Notwithstanding the foregoing, in connection with any
settlement negotiated by an Indemnifying Party, no Indemnified Party shall be
required by an Indemnifying Party to (x) enter into any settlement that does not
include as an unconditional term thereof the delivery by the claimant or
plaintiff to the Indemnified Party of a release from all liability in respect of
such claim or litigation, (y) enter into any settlement that attributes by its
terms liability to the Indemnified Party or (z) consent to the entry of any
judgment that does not include as a term thereof a full dismissal of the
litigation or proceeding with prejudice.  No failure by an Indemnifying Party to
acknowledge in writing its indemnification obligations under this Section 9.1.8
shall relieve it of such obligations to the extent they exist.  If an
Indemnified Party is entitled to indemnification against a Third Party Claim,
and the Indemnifying Party fails to accept a tender of, or assume, the defense
of a Third Party Claim pursuant to this Section 9.1.8 or if, in accordance with
the foregoing, the Indemnifying Party shall lose its right to contest, defend,
litigate and settle such a Third Party Claim, the Indemnified Party shall have
the right, without prejudice to its right of indemnification hereunder, in its
discretion exercised in good faith and upon the advice of counsel to contest,
defend and litigate such Third Party Claim, and may settle such Third Party
Claim, either before or after the initiation of litigation, at such time and
upon such terms as the Indemnified Party deems fair and reasonable, provided
that at least ten (10) days prior to any such settlement, written notice of its
intention to settle is given to the Indemnifying Party.  If, pursuant to this
Section 9.1.8, the Indemnified Party so contests, defends, litigates or settles
a Third Party Claim, for which it is entitled to indemnification hereunder as
hereinabove provided, the Indemnified Party shall be reimbursed by the
Indemnifying Party for the reasonable attorneys' fees and other expenses of
defending, contesting, litigating and/or settling the Third Party Claim which
are incurred from time to time, forthwith following the presentation to the
Indemnifying Party of itemized bills for said attorneys' fees and other
expenses.

                 9.1.9   CLAIMS INVOLVING TAXES.  In the case of any proposed or
actual assessment of Tax liabilities for which a Parent Indemnitee is entitled
to indemnification from the Company as provided herein, Parent shall give notice
to the Company Securityholders, and shall contest such proposed or actual
assessment in the manner reasonably directed by the Company Securityholders (in
consultation with the Parent) through the administrative review or appeal
procedures available under the relevant Tax laws and regulations.  The Company
Securityholders shall bear all costs and expenses relating to any action
requested by the Company Securityholders to be taken by Parent under this
Section 9.1.9.  If the pursuit of such

                                       44
<PAGE>
 
administrative remedies by the Parent is unsuccessful, Parent shall be entitled
to indemnification for the Tax (and any penalties and interest) pursuant to
Section 9.1 hereof; provided however, that if within ten (10) days of receipt
                    -------- -------                                         
from the Parent of notice of its intention to do so, the Company Securityholders
shall notify the Parent of their desire to contest the proposed or assessed Tax
deficiency in the courts, they shall be entitled to do so at their expense
provided the Company Securityholders pay the deficiency and any penalties and
interest if required in order to seek judicial relief.  The Parent shall
cooperate with the Company for such purposes but shall be entitled to
reimbursement for any out-of-pocket expenses incurred by the Parent in doing so.
For purposes of this Section 9.1.9, the Company Securityholders shall select a
Company Securityholder representative to act on their behalf who shall serve as
a liaison between Parent and the Company Securityholders with respect to all
matters arising under or related to this Section 9.1.9.

                 9.1.10  COOPERATION.  Subject to the provisions of Section
9.1.8, the Indemnified Party shall have the right, at its own expense, to
participate in the defense of any Third Party Claim, and if said right is
exercised, the parties shall cooperate in the investigation and defense of said
Third Party Claim.

                 9.1.11  SUBROGATION.  The Indemnifying Party shall not be
entitled to require that any action be brought against any other Person before
action is brought against it hereunder by the Indemnified Party and shall not be
subrogated to any right of action until it has paid in full or successfully
settled or defended against the Third Party Claim for which indemnification is
sought.

                 9.1.12  INDEMNIFICATION NET OF BENEFITS.  The amount of any
recovery by an Indemnified Party pursuant to this Section 9.1 shall be net of
any insurance benefits actually received by such Indemnified Party (but not to
the extent such benefits are repaid through retrospective premium adjustments or
otherwise) or any foreign federal, state and/or local tax benefits actually
received by such Indemnified Party as a result of the state of facts which
entitled the Indemnified Party to recover from the Indemnifying Party pursuant
to this Section 9.1.  Notwithstanding the foregoing, any increase or decrease
in the basis of any assets or stock of the Parent or any of its Subsidiaries
shall not be considered to give rise to a tax benefit for purposes of this
Section 9.1.12.

          9.2    REGISTRATION STATEMENT FILING.

                 9.2.1   As promptly as reasonably practicable following the
Closing, Parent shall file with the Securities and Exchange Commission (the
"Commission") a registration statement (the "Registration Statement") on any
appropriate form under the Securities Act of 1933, as amended (the "Securities
Act") with respect to the offering and sale or other disposition of the Merger
Shares to be issued in the Merger.  Parent agrees to use all reasonable efforts
to cause the Registration Statement to become effective as soon as reasonably
practicable following its filing.  The Principal Stockholders agree to cooperate
with and provide assistance to Parent

                                       45
<PAGE>
 
in connection with the registration and sale of the Merger Shares.
Notwithstanding the foregoing, the Company and the Principal Stockholders
acknowledge and agree that Parent shall have no obligation to name in the
Registration Statement any Company Securityholder as a selling stockholder at
the time of the original filing; provided, that, Parent files a post-effective
amendment or amendments which become effective on or prior to the second
anniversary of the Closing Date including (as of such date) all Company
Securityholders as selling stockholders and thus allowing each Company
Securityholder an opportunity to effect sales of Merger Shares pursuant to the
Registration Statement at least as of such time.

                 9.2.2   Parent agrees that, subject to the provisions of the
last sentence of Section 9.2.1, it will (i) prepare and file with the
Commission, any amendments or supplements to the Registration Statement or
prospectus which is a part thereof which may be necessary to keep the
Registration Statement effective and to comply with the provisions of the
Securities Act with respect to the offer of the Merger Shares covered by the
Registration Statement for a period of three (3) years from the effective date
of the Registration Statement; (ii) prepare and promptly file with the
Commission and promptly notify the Company Securityholders of the filing of such
amendment or supplement to the Registration Statement or prospectus as may be
necessary to correct any statement therein or omission therefrom if, at any time
when a prospectus relating to the Merger Shares is required to be delivered
under the Securities Act, any event with respect to Parent shall have occurred
as a result of which any prospectus would include an untrue statement of
material fact or omit to state any material fact necessary to make the
statements therein not misleading; (iii) in case the Company Securityholders are
required to deliver a prospectus, prepare promptly such amendment or amendments
to the Registration Statement and such prospectus or prospectuses as may be
necessary to permit compliance with the requirements of Section 10(a)(3) of the
Securities Act; (iv) advise the Company Securityholders promptly after Parent
shall receive notice or obtain knowledge of the issuance of any stop order by
the Commission suspending the effectiveness of the Registration Statement or
amendment thereto or of the initiation or threatening of any proceedings for
that purpose, and promptly use its commercially reasonable efforts to prevent
the issuance of any stop order or to obtain its withdrawal if such stop order
should be issued; (v) use its best efforts to qualify the Merger Shares for sale
under the securities or "blue Sky" laws of such states within the United States
as the Securityholders may reasonably designate; and (vi) furnish to the Company
Securityholders, as soon as available, copies of the Registration Statement and
each preliminary and final prospectus, or supplement or amendment required to be
prepared with respect thereto, all in such quantities as they may from time to
time reasonably request.

                 9.2.3   Parent shall pay all expenses (the "Registration
Expenses") incurred by Parent incident to the registration of the Merger Shares
under this Section 9.2, including, without limitation, all registration and
filing fees, all fees and expenses of complying with securities or blue sky
laws, all word processing, duplicating and printing expenses, messenger and
delivery expenses, the fees and disbursements of counsel for Parent and of its
independent public accountants, premiums and other costs of policies of
insurance purchased by

                                       46
<PAGE>
 
Parent at its option against liabilities arising out of the public offering of
such Merger Shares.  With respect to sales of Merger Shares, the Company
Securityholders shall pay all underwriting discounts and commissions and fees of
underwriters, selling brokers, dealer managers or similar securities industry
professionals relating to the distribution of the Merger Shares, the fees and
disbursements of counsel retained by the Company Securityholders and transfer
taxes, if any.

                 9.2.4   Parent agrees to indemnify and hold harmless, to the
full extent permitted by law, each Company Securityholder, its officers,
directors and employees and each person who controls such Company Securityholder
(within the meaning of the Securities Act) against all losses, claims, damages,
liabilities and expenses caused by any untrue or alleged untrue statement of a
material fact contained in the Registration Statement or prospectus or any
omission or alleged omission to state therein a material fact required to be
stated therein or necessary to make the statements therein not misleading,
except insofar as the same are caused by or contained in any information
furnished in writing to the Parent by such Company Securityholder expressly for
use therein. Promptly after receipt by a Company Securityholder under this
Section 9.2.4 of notice of the commencement of any action (including any
governmental action), such Company Securityholder will, if a claim in respect
thereof is to be made against the Parent under this Section 9.2.4, notify Parent
in writing of the commencement thereof and Parent shall have the right to
participate in, and, to the extent Parent so desires, jointly with any other
indemnifying party similarly noticed, to assume the defense thereof with counsel
mutually satisfactory to the parties; provided, however, that a Company
Securityholder shall have the right to retain its own counsel, with the fees and
expenses to be paid by Parent, if representation of such Company Securityholder
by the counsel retained by Parent would be inappropriate due to actual or
potential differing interests between such Company Securityholder and any other
party represented by such counsel in such proceeding. The failure to notify
Parent within a reasonable time of the commencement of any such action, if
prejudicial to its ability to defend such action, shall relieve Parent of any
liability to the Company Securityholder under this Section 9.2.4 but the
omission so to notify Parent will not relieve it of any liability that it may
have to any Company Securityholder otherwise than under this Section 9.2.4.

          9.3    LISTING OF ADDITIONAL SHARES ON NASDAQ.  As promptly as
reasonably practicable following the Closing, the Parent shall prepare and
submit to the National Association of Securities Dealers an Additional Listing
Application and all other documents and fees necessary to cause the Merger
Shares to be listed on the NMS.

          9.4    COMPANY FAILURE TO CLOSE.  In the event this Agreement is
terminated pursuant to Article 10 as a result of the failure of any condition
set forth in Section 8.1.1 and the Company or the Company Securityholders enter
into an agreement to effect a sale of substantially all of the assets, or a
majority of the voting securities of the Company (collectively, the "Proposed
Transaction"), within six months from the date of termination under Article 10
hereof to a party who had or on whose behalf there had been discussions relating
to a Proposed Transaction made with the Company, a Principal Stockholder or
their agents or representatives regarding the Proposed Transaction during the
period from November 1, 1995 and ending on

                                       47
<PAGE>
 
the date of the meeting, or written consent set forth in Section 6.3 hereof, the
Company shall pay to Parent all costs incurred by Parent (not to exceed
$250,000) in connection with the negotiation, execution and consummation of this
Agreement plus an additional $250,000.


                                  ARTICLE 10.
                                  -----------

                                  TERMINATION.
                                  ----------- 

     This Agreement may be terminated and the Merger may be abandoned at any
time prior to the Effective Time:

          10.1   MATERIAL BREACH.  By a non-breaching party, in the event of a
material breach of any representation, warranty, condition or agreement
contained in this Agreement that is not cured within 30 days of the time that
written notice of such breach is received by such other party from the party
giving notice;

          10.2   CONSUMMATION OF MERGER.  If the Merger shall not have been
consummated on or before May 31, 1996; provided, in the case of a termination
pursuant to this Section 1.0.2, the terminating party shall not have materially
breached its obligations hereunder in any manner that shall have contributed to
the failure to consummate the Merger by such date.

          10.3   DUE DILIGENCE.  In the event that the Parent's due diligence
investigation of the Company and its Subsidiaries conducted between the date
hereof and the Closing Date, related to all aspects of the business of the
Company and its Subsidiaries, is not completed to the satisfaction of Parent in
its sole discretion, the Parent may elect to the terminate this Agreement by
giving written notice of termination to the Company within seven (7) days of the
conclusion of such due diligence investigation.

          10.4   MUTUAL CONSENT.  By mutual written consent of the Parent and
the Company authorized by their respective Boards of Directors.

          10.5   EFFECT OF TERMINATION.  In the event of termination of this
Agreement and abandonment of the Merger pursuant to this Article 1.0, no party
hereto (or any of its Affiliates) shall have any liability or further obligation
to any other party to this Agreement, except that if termination of this
Agreement shall be judicially determined to have been caused by willful breach
of this Agreement, then, in addition to other remedies at law or equity for
breach of this Agreement, the party so found to have willfully breached this
Agreement shall indemnify the other parties for their respective costs, fees and
expenses of their counsel, accountants and other experts and advisors as well as
fees and expenses incident to negotiation, preparation and execution of this
Agreement and related documentation and their stockholders' meetings and
consents.

                                       48
<PAGE>
 
                                  ARTICLE 11.
                                  -----------

                          CHOICE OF LAW; ARBITRATION
                          --------------------------

     The internal laws of the State of California, United States of America,
applicable to contracts entered into and wholly to be performed in California by
California residents, without reference to any principles concerning conflicts
of law, shall govern the validity of this Agreement, the construction of its
terms and the interpretation of the rights and duties of the parties hereunder;
provided, however, that this Section and the parties' rights under this Section
shall be governed by and construed in accordance with the Federal Arbitration
Act, 9 U.S.C. (S) 1 et. sec.  Any controversy or claim arising out of or
relating to this Agreement, or the breach thereof, shall be settled by the
following procedures:  Either party may send the other written notice
identifying the matter in dispute and involving the procedures of this Section.
Within fourteen (14) days after such written notice is given, one or more
principals of each party shall meet at a mutually agreeable location in San
Francisco, California, for the purpose of determining whether they can resolve
the dispute themselves by written agreement, and, if not, whether they can agree
upon a third-party impartial arbitrator (the "Arbitrator") to whom to submit the
matter in dispute for final and binding arbitration.  If the parties fail to
resolve the dispute by written agreement or to agree on the Arbitrator within a
twenty-one (21) day period, either party may make written application to the
Judicial Arbitration and Mediation Services ("JAMS"), San Francisco, California
for the appointment of a single Arbitrator to resolve the dispute by arbitration
and at the request of JAMS, the parties shall meet with JAMS at its offices or
confer with JAMS by telephone within ten (10) calendar days of such request to
discuss the dispute and the qualifications and experience which each party
respectively believes the Arbitrator should have; provided, however, the
selection of the Arbitrator shall be the exclusive decision of JAMS and shall be
made within thirty (30) days of the written application to JAMS.  Within 30 days
of the selection of the Arbitrator, the parties shall meet in San Francisco,
California with such Arbitrator at a place and time designated by the Arbitrator
after consultation with the parties and present their respective positions on
the dispute.  Each party shall have no longer than one day to present its
position, the entire proceeding before the Arbitrator shall be on no more than
three consecutive days, and the award shall be made in writing no more than 30
days following the end of the proceeding.  Such award shall be a final and
binding determination of the dispute and shall be fully enforceable as an
arbitration award in any court having jurisdiction and venue over the parties.
The prevailing party (as determined by the Arbitrator) shall in addition be
awarded by the Arbitrator such party's own attorneys' fees and expenses in
connection with such proceeding.  The non-prevailing party (as determined by the
Arbitrator,) shall pay the Arbitrator's fees and expenses.

                                       49
<PAGE>
 
                                  ARTICLE 12.
                                  -----------

                           MISCELLANEOUS PROVISIONS.
                           ------------------------ 

          12.1   NOTICES.  All notices, demands or other communications
hereunder shall be in writing and shall be deemed to have been duly given if (i)
delivered in person, on the date actually given, (ii) by United States mail,
certified or registered, with return receipt requested, on the date which is two
business days after the date of mailing, or (iii) if sent by telex or facsimile
transmission, with a copy mailed on the same day in the manner provided in (i)
above, on the date transmitted provided receipt is confirmed:

                 12.1.1  if to the Parent or MergerCo to:

                            Veterinary Centers of America, Inc.
                            3420 Ocean Park Boulevard, Suite 1000
                            Santa Monica, California 90405
                            Attention: Chief Financial Officer
                            Telecopy No.: (310) 392-7464

                            With copies to:

                            Troop Meisinger Steuber & Pasich, LLP
                            10940 Wilshire Boulevard, Suite 800
                            Los Angeles, California 90024
                            Attention: C.N. Franklin Reddick III, Esq.
                            Telecopy No.: (310) 443-8512

                 12.1.2  if to the Company to:

                            Pets Rx, Inc.
                            333 West Santa Clara Street #716
                            San Jose, California 95113
                            Attention:  President

                            With copies to:

                            Latham & Watkins
                            505 Montgomery Street, Suite 1900
                            San Francisco, CA 94111

                            Attention: Christopher L. Kaufman
                            Telecopy: (415) 395-8095

                                       50
<PAGE>
 
                 12.1.3  if to the Principal Stockholders, to their respective
addresses set forth in Schedule A hereto,


or at such other address as may have been furnished by such Person in writing to
the other parties.

          12.2   SEVERABILITY.  Should any Section or any part of a Section
within this Agreement be rendered void, invalid or unenforceable by any court of
law for any reason, such invalidity or unenforceability shall not void or render
invalid or unenforceable any other Section or part of a Section in this
Agreement.

          12.3   EXHIBITS AND SCHEDULES.  Each Exhibit and Schedule delivered
pursuant to the terms of this Agreement, each document, instrument and
certificate delivered by the parties in connection with the transactions
contemplated hereby and each Ancillary Agreement constitutes an integral part of
this Agreement.

          12.4   HEADINGS.  Section headings and subheadings used in this
Agreement are for convenience only and shall not affect the meaning or
construction of this Agreement.

          12.5   NO ADVERSE CONSTRUCTION.  The rule that a contract is to be
construed against the party drafting the contract is hereby waived, and shall
have no applicability in construing this Agreement, any other document delivered
at the Closing or any provisions hereof or thereof.

          12.6   COUNTERPARTS.  This Agreement may be executed in one or more
counterparts, each of which shall be deemed an original but all of which
together shall constitute one and the same instrument.

          12.7   COSTS AND ATTORNEYS' FEES.  In the event that any action, suit,
or other proceeding is instituted concerning or arising out of this Agreement,
any of the Ancillary Agreements or any of the Stockholder Ancillary Agreements,
the prevailing party shall recover all of such party's costs, and reasonable
attorneys' fees incurred in each and every such action, suit, or other
proceeding, including any and all appeals or petitions therefrom.

          12.8   SUCCESSORS AND ASSIGNS.  All rights, covenants and agreements
of the parties contained in this Agreement shall, except as otherwise provided
herein, be binding upon and inure to the benefit of their respective successors
and assigns.

          12.9   AMENDMENT.  This Agreement may be amended at any time by the
mutual written agreement of the Parent, the Company and MergerCo, but no
amendment shall be made which materially changes the rights, obligations or
liabilities of any Principal Stockholder hereunder without his written agreement
thereto.

                                       51
<PAGE>
 
          12.10  WAIVER.  At any time prior to the Effective Time, the Parent,
the Company and MergerCo may:

                 12.10.1  Extend the time for the performance of any of the
obligations or other acts of the parties hereto.

                 12.10.2  Waive any inaccuracies in the representations and
warranties contained herein or in any document delivered pursuant hereto.

                 12.10.3  Waive compliance with any of the agreements or
conditions contained herein.

Any agreement on the part of the Parent, the Company or MergerCo to any such
extension or waiver shall be valid only if set forth in an instrument in writing
signed by or on behalf of such party, and no such agreement which materially
changes the rights, obligations or liabilities of any Principal Stockholder
hereunder shall be binding upon him without his written agreement thereto.

          12.11  ENTIRE AGREEMENT.  This Agreement, the attached Exhibits and
Schedules, the other schedules referred to in this Agreement, and the Ancillary
Agreements contain the entire understanding of the parties and, other than the
Confidentiality Letter, there are no further or other agreements or
understandings, written or oral, in effect between the parties relating to the
subject matter hereof unless expressly referred to herein.  Nothing in this
Agreement, express or implied, is intended to confer upon any person other than
the parties hereto any rights or remedies under or by way of this Agreement;
                                                                            
provided, however, that the Indemnified Parties shall be entitled to the
- --------  -------                                                       
benefits of Article 9.

          12.12  DISCLOSURE SCHEDULE.  Matters reflected on the Disclosure
Schedule are not necessarily limited to matters required by this Agreement to be
reflected on the Disclosure Schedule.  Such additional matters are set forth for
informational purposes only and do not necessarily include other matters of a
similar nature.  Matters disclosed by the Company and the Company Stockholders
pursuant to any particular section of or schedule to this Agreement (or any
section of the Disclosure Schedule) shall be deemed to be disclosed with respect
to all sections of this Agreement (and all sections of the Disclosure Schedule)
to the extent this Agreement requires such disclosure.  Capitalized terms used
in the Disclosure Schedule not otherwise defined therein shall have the
respective meanings assigned to such terms in this Agreement.

          12.13  OBLIGATIONS OF THE PARENT.  Whenever this Agreement requires
MergerCo to take any action, such requirement shall be deemed to include an
undertaking on the part of Parent to cause MergerCo to take such action.

                                       52
<PAGE>
 
          IN WITNESS WHEREOF, the parties hereto have executed and delivered
this Agreement as of the date first above written.


                            VETERINARY CENTERS OF AMERICA, INC.,
                            A DELAWARE CORPORATION



                            By:  ___________________________________________
                                 Name:      Robert L. Antin
                                 Title:     Chief Executive Officer



                            PRI MERGER COMPANY,
                            A DELAWARE CORPORATION



                            By:  ___________________________________________
                                 Name:      Robert L. Antin
                                 Title:     Chief Executive Officer

                                       
<PAGE>
 
                            PETS RX, INC.,
                            A DELAWARE CORPORATION



                            By:  _____________________________________________ 
                                 Name:
                                 Title:


                            TRILON DOMINION PARTNERS, LLC



                            By:  _____________________________________________ 
                                 Name:
                                 Title:


                            HYPROM, S.A.
                            A SWISS CORPORATION



                            By:  _____________________________________________ 
                                 Name:
                                 Title:


                            __________________________________________________ 
                            Richard Watson, individually and as Custodian for
                            Andrew Watson



                            __________________________________________________ 
                            Nancy P. Watson


                            __________________________________________________ 
                            John W. Hunter

                                       
<PAGE>
 
                               LIST OF EXHIBITS

Exhibit No.  Exhibit Name
- -----------  ------------

2.3(b)               Certificate of Merger                              
                                                                        
4.29                 Form of Confidentiality Agreement                  
                                                                        
6.6                  Form of Affiliate Letter                           
                                                                        
7.1                  Opinion of Troop Meisinger Steuber & Pasich, LLP   
                                                                        
8.1                  Opinion of Latham & Watkins                        
                                                                        
8.7                  Form of Non-Competition Agreement                  
                                                                        
7.11                 Escrow Agreement                                    

                                       55
<PAGE>
 
                               LIST OF SCHEDULES

Schedule         Identification
- --------         --------------

A                Principal Stockholders

8.15             Key Company Managers

                                       56
<PAGE>
 
                                  SCHEDULE A

                            PRINCIPAL STOCKHOLDERS

Trilon Dominion Partners, LLC

Hyprom, S.A.
a Swiss corporation

Richard Watson, individually and as Custodian for Andrew Watson

Nancy P. Watson

John W. Hunter

                                       57
<PAGE>
 
                                AMENDMENT NO. 1
                                      TO
                     AGREEMENT AND PLAN OF REORGANIZATION


     Amendment No. 1 to Agreement and Plan of Reorganization (the "Amendment No.
1") dated this April 11, 1996, by and among the Principal Stockholders,
Veterinary Centers of America, Inc., a Delaware corporation ("Parent"), PRI
Merger Company, a Delaware corporation ("MergerCo") and Pets Rx, Inc., a
Delaware corporation (the "Company").


                                R E C I T A L S
                                ---------------

     A.   Parent, MergerCo and the Company have entered into that certain
Agreement and Plan of Reorganization (the "Merger Agreement") dated February 27,
1996 pursuant to which MergerCo shall merge with and into the Company (the
"Merger"), the separate existence of MergerCo shall cease and the Company shall
continue as the surviving corporation. Terms used herein without definition
shall have the meanings given those terms in the Merger Agreement.

     B.   Pursuant to Section 1.22 of the Merger Agreement, Merger Shares means
970,000 shares of Parent Common Stock minus the Reduction Shares.

     C.   Pursuant to Section 5.2 of the Merger Agreement, Parent represents and
warrants that when the execution and delivery of the Merger Agreement and each
of the Ancillary Agreements and the consummation of the transactions
contemplated by the Merger Agreement and the Ancillary Agreements are duly and
validly authorized by Parent's and MergerCo's Board of Directors, all corporate
proceedings will have been taken and no other corporate proceedings on the part
of Parent or MergerCo will be necessary to authorize the execution, delivery and
performance by Parent and MergerCo of the Merger Agreement and each of the
Ancillary Agreements.

     D.   Pursuant to Section 6.5 of the Merger Agreement, Parent shall take all
necessary or appropriate action to call a meeting of its Board of Directors
within fourteen days after the execution of the Merger Agreement to consider and
vote on the terms of the Merger and the execution of the Merger Agreement. Based
on subsequent discussions among the parties, Parent's obligations under Section
6.5 were extended until April 5, 1996.

     E.   Pursuant to Section 6.11, the Company shall deliver to Parent the
Disclosure Schedules by March 19, 1996. Based on subsequent discussions among
the parties, the Company's obligation to deliver the Disclosure Schedules under
Section 6.11 was extended until April 5, 1996.
<PAGE>
 
     F.   Pursuant to Section 8.4 of the Merger Agreement, Parent shall have
completed and approved to its sole satisfaction customary business and legal due
diligence with respect to the Company, its Subsidiaries and their respective
businesses and, in the event the diligence is not satisfactory to Parent, Parent
must deliver notice thereof to the Company within four (4) business days
following receipt of the Company's audited financial statements for the year
ended December 31, 1995.

     G.   The parties desire to modify the terms of Sections 1.22, 5.2, 6.5,
6.11 and 8.4 and such other terms of the Merger Agreement as set forth below.

                               A G R E E M E N T
                               -----------------

     NOW THEREFORE, in consideration of the foregoing premises and mutual
covenants herein provided, the parties agree as follows:

     1.   Section 1.22 of the Merger Agreement is hereby amended to read in its
entirety as follows:

          "MERGER SHARES" shall mean 850,000 shares of Parent Common Stock minus
          the Reduction Shares, which Merger Shares are to be exchanged for the
          Company Common Stock and the Company Preferred Stock pursuant to this
          Agreement. Notwithstanding the foregoing, in the event the average
          closing sale prices of the Parent Common Stock on the Nasdaq National
          Market (as reported by the Wall Street Journal, or if not so reported
          as reported by another authoritative source) over the five (5) trading
          day period ending on (and including) one day prior to the Closing Date
          (the "Average Price") is between $21.169 and $18.55 (inclusive), the
          Merger Shares shall be determined by dividing $17,993,500 by the
          Average Price less the Reduction Shares. If the Average Price is less
          than $18.55, the Merger Shares shall equal 970,000 shares of Parent
          Common Stock less the Reduction Shares.

     2.   The second sentence of Section 5.2 of the Merger Agreement is hereby
amended to read in its entirety as follows:

          "The execution and delivery of this Agreement and each of the
          Ancillary Agreements and the consummation of the transactions
          contemplated hereby and thereby have been duly and validly authorized
          by Parent's and MergerCo's Board of Directors all corporate
          proceedings have been taken and no other corporate proceedings on the
          part of Parent or MergerCo are necessary to authorize the execution,
          delivery and performance by Parent and MergerCo of this Agreement and
          each of the Ancillary Agreements."

                                       2
<PAGE>
 
     3.   Parent has delivered notice of the satisfaction of its obligation set
forth in Section 6.5 of the Merger Agreement. This Paragraph 3 shall supersede
the obligations contained in Section 6.5 of the Merger Agreement and shall
satisfy the condition to closing set forth in Section 8.12 of the Merger
Agreement.

     4.   The Company has delivered the Disclosure Schedules in satisfaction of
its obligation set forth in Section 6.11 of the Merger Agreement. The
representations and warranties set forth in Articles 4 and 4A of the Merger
Agreement shall be effective as of April 11, 1996. The parties agree that the
Company's obligation to deliver the Disclosure Schedules under Section 6.11 of
the Merger Agreement was extended to April 11, 1996.

     5.   Parent has completed its business and legal due diligence and such
diligence is satisfactory to Parent. This Paragraph 5 shall satisfy the
condition to closing set forth in Section 8.4 of the Merger Agreement.

     6.   The parties further agree that their respective filings under the Hart
Scott Act shall be made as of April 12, 1996.

     7.   Except as amended by this Amendment No. 1, the Agreement and Plan of
Reorganization will continue unmodified and in full force and effect.

     8.   This Amendment No. 1 may be executed in any number of counterparts,
each of which so executed shall be deemed to be an original, but all such
counterparts shall together constitute but one and the same instrument.

                                       3
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Amendment No. 1 to
Agreement and Plan of Reorganization to be duly executed as of the day and year
first above written.


                           VETERINARY CENTERS OF AMERICA, INC.,
                           A DELAWARE CORPORATION



                           By:
                                -----------------------------------------------
                                Name:      Tomas W. Fuller
                                Title:     Chief Financial Officer, Vice
                                           President and Assistant Secretary



                           PRI MERGER COMPANY,
                           A DELAWARE CORPORATION



                           By:
                                -----------------------------------------------
                                Name:      Tomas W. Fuller
                                Title:     Chief Financial Officer, Vice
                                           President and Assistant Secretary

                                       4
<PAGE>
 
                           PETS RX, INC.,
                           A DELAWARE CORPORATION



                           By:
                                -----------------------------------------------
                                Name:
                                Title:


                           TRILON DOMINION PARTNERS, LLC



                           By:
                                -----------------------------------------------
                                Name:
                                Title:


                           HYPROM, S.A.
                           A SWISS CORPORATION



                           By:
                                -----------------------------------------------
                                Name:
                                Title:


                           ----------------------------------------------------
                           Richard Watson, individually and as Custodian for
                           Andrew Watson


                           ----------------------------------------------------
                           Nancy P. Watson


                           ----------------------------------------------------
                           John W. Hunter
<PAGE>
 
                                AMENDMENT NO. 2
                                      TO
                     AGREEMENT AND PLAN OF REORGANIZATION

     This Amendment No. 2 to that certain Agreement and Plan of Reorganization 
(the "Amendment No. 2") is dated this May 23, 1996, by and among Veterinary 
Centers of America, Inc., a Delaware corporation ("Parent"), PRI Merger Company,
a Delaware corporation ("MergerCo"), Pets' Rx, Inc., a Delaware corporation (the
"Company") and the persons identified on Schedule A hereto (each, a "Principal 
                                         ----------
Stockholder" and collectively, the "Principal Stockholders").

                                R E C I T A L S
                                ---------------

     A.  Parent, MergerCo, the Company and the persons identified on Schedule A 
                                                                     ---------- 
thereto have entered into that certain Agreement and Plan of Reorganization 
dated February 27, 1996, as amended by that certain Amendment No. 1 to Agreement
and Plan of Reorganization dated April 11, 1996 (as amended, the "Merger 
Agreement"), pursuant to which MergerCo shall merge with and into the Company 
(the "Merger"), the separate existence of MergerCo shall cease and the Company 
shall continue as the surviving corporation. Terms used herein without 
definition shall have the meanings given those terms in the Merger Agreement.

     B.  Pursuant to Section 6.3 of the Merger Agreement, the Company has agreed
to use commercially reasonable efforts to cause a meeting of its stockholders 
(or written consent of its stockholders) to occur on or prior to March 31, 1996 
to consider and vote on a proposal to approve the Merger Agreement, the Merger 
and the transactions contemplated thereby. The parties to the Merger Agreement 
wish to modify the terms of Section 6.3 of the Merger Agreement to state that 
the Company shall use commercially reasonable efforts to cause such meeting of 
its stockholders (or such written consent of its stockholders) to occur on or 
prior to June 17, 1996.

     C.  Pursuant to Section 10.2 of the Merger Agreement, the Merger Agreement 
may be terminated and the Merger may be abandoned if the Merger shall not have 
been consummated on or before May 31, 1996 (the "Expiration Date"), provided 
that the terminating party shall not have materially breached its obligations 
under the Merger Agreement in any manner that shall have contributed to the 
failure to consummate the Merger by such date. The parties to the Merger 
Agreement wish to modify the terms of Section 10.2 of the Merger Agreement to 
extend the Expiration Date to June 20, 1996.

                               A G R E E M E N T
                               -----------------

     NOW THEREFORE, in consideration of the foregoing premises and mutual
covenants herein provided, the parties agree as follows:

                                      1 

<PAGE>
 
     1.  Section 6.3 of the Merger Agreement is hereby amended and restated to 
read in its entirety as follows:

         "6.3  STOCKHOLDER APPROVAL.  The Company shall take all necessary or 
appropriate action under Delaware Law and the Company Organizational Documents 
to call a meeting of its stockholders (or to take such action by written 
consent), to be held at the earliest practicable date, and the Company shall use
commercially reasonable efforts to cause such meeting or vote by written consent
to occur on or prior to June 14, 1996 to consider and vote on a proposal to 
approve this Agreement, the Merger and the transactions contemplated hereby and 
thereby."

     2.  Section 10.2 of the Merger Agreement is hereby amended and restated to 
read in its entirety as follows:

         "10.2  CONSUMMATION OF MERGER.  If the Merger shall not have been 
consummated on or before June 20, 1996; provided, in the case of a termination 
pursuant to this Section 10.2, the terminating party shall not have materially 
breached its obligations hereunder in any manner that shall have contributed to 
the failure to consummate the Merger by such date."

                                       2

<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Amendment No. 2 to
Agreement and Plan of Reorganization to be duly executed as of the day and year 
first above written.

                                       Veterinary Centers of America, Inc.,
                                       a Delaware corporation

                                       By: /s/ Tomas W. Fuller
                                           -------------------------------------
                                           Name:   Tomas W. Fuller
                                           Title:  Chief Financial Officer, Vice
                                                   President and Assistant
                                                   Secretary
                        

                                       PRI Merger Company,
                                       a Delaware corporation

                                       By: /s/ Tomas W. Fuller
                                           -------------------------------------
                                           Name:   Tomas W. Fuller
                                           Title:  Chief Financial Officer, Vice
                                                   President and Assistant
                                                   Secretary
                        

                                       Pets' Rx, Inc.,
                                       a Delaware corporation

                                       By: /s/ Richard E. Watson
                                           -------------------------------------
                                           Name:   Richard E. Watson
                                           Title:  President
                        
                                       3


<PAGE>
 
                                       Trilon Dominion Partners, LLC


                                       By:  /s/ William J. Hopke
                                            ------------------------
                                            Name:  William J. Hopke
                                            Title: C.O.O.

                                       Ilyprom, S.A.
                                       a Swiss corporation

                                       By:  /s/ C. Dinner
                                            -------------------------
                                            Name:  C. Dinner
                                            Title: President

                                       /s/ Richard Watson
                                       ------------------------------
                                       Richard Watson, individually and as
                                       Custodian for Andrew Watson

                                       /s/ Nancy P. Watson
                                       ------------------------------   
                                       Nancy P. Watson

                                       /s/ John W. Hunter
                                       ------------------------------
                                       John W. Hunter

                                      4  
<PAGE>
 
                                  SCHEDULE A

                            PRINCIPAL STOCKHOLDERS

Trilon Dominion Partners, LLC

Hyprom, S.A., A Swiss corporation

Richard Watson, individually and as
Custodian for Andrew Watson

Nancy P. Watson

John W. Hunter

<PAGE>
 
                               AMENDMENT NO. 3 
                                      TO 
                     AGREEMENT AND PLAN OF REORGANIZATION


     This Amendment No. 3 to that certain Agreement and Plan of Reorganization 
(the "Amendment No. 3") is dated this June 7, 1996, by and among Veterinary 
Centers of America, Inc. a Delaware corporation ("Parent"), PRI Merger Company, 
a Delaware corporation ("MergerCo"), Pets' Rx. Inc., a Delaware corporation (the
"Company"), and the persons identified on Schedule A hereto (each, a "Principal
                                          ---------- 
Stockholder" and collectively, the "Principal Stockholders").

                                   R E C I T A L S
                                   - - - - - - - -

     A.   Parent, MergerCo, the Company and the persons identified on Schedule A
thereto have entered into that certain Agreement and Plan of Reorganization, 
dated February 27, 1996, as amended by Amendment No. 1 to Agreement and Plan of 
Reorganization dated April 11, 1996 and by Amendment No. 2 to Agreement and Plan
of Reorganization dated May 23, 1996 (as amended, the "Merger Agreement"), 
pursuant to which MergerCo shall merge with and into the Company (the "Merger"),
the separate existence of MergerCo shall cease and the Company shall continue 
as the surviving corporation.  Terms used herein without definition shall have 
the meanings given those terms in the Merger Agreement.

     B.   Section 9.2.1 of the Merger Agreement sets forth certain terms and 
provisions governing the obligations of Parent to file with the Securities and 
Exchange Commission a registration statement on any appropriate form under the 
Securities Act of 1933, as amended, with respect to the offering and sale or 
other disposition of the Merger Shares to be issued in the Merger.  The parties 
to the Merger Agreement desire to amend certain provisions thereof relating to 
the obligations of Parent to file certain post-effective amendments including 
certain Company Securityholders as selling stockholders and thus allowing such 
Company Securityholders an opportunity to effect sales of Merger Shares pursuant
to the Registration Statement, all as more fully provided herein.

                                   A G R E E M E N T
                                   - - - - - - - - -

     NOW THEREFORE, in consideration of the foregoing premises and mutual 
covenants herein provided, the parties agree as follows:

     1.   Section 9.2.1 of the Merger Agreement is hereby amended and restated 
to read in its entirety as follows:


<PAGE>
 
     "SECTION 9.2.1  As promptly as reasonably practicable following the 
Closing, Parent shall file with the Securities and Exchange Commission (the 
"Commission") a registration statement (the "Registration Statement") on any 
appropriate form under the Securities Act of 1933, as amended (the "Securities 
Act"), with respect to the offering and sale or other disposition of the Merger 
Shares to be issued in the Merger. Parent agrees to use all reasonable efforts 
to cause the Registration Statement to become effective as soon as reasonably 
practicable following its filing. The Principal Stockholders agree to cooperate 
with and provide assistance to Parent in connection with the registration and 
sale of the Merger Shares. Notwithstanding the foregoing, the Company and the 
Principal Stockholders acknowledge and agree that (a) Parent shall have no 
obligation to name in the Registration Statement any Principal Stockholder as a 
selling stockholder at the time of the original filing; provided, that, Parent 
files a post-effective amendment or amendments or, if necessary, a separate 
registration statement, and uses all reasonable efforts to cause such post 
effective amendments or separate registration statement to become effective on 
or prior to the second anniversary of the Closing Date including (as of such 
date) all Principal Stockholders as selling stockholders and thus allowing each 
Principal Stockholder an opportunity to effect sale of Merger Shares after such 
second anniversary and (b) with respect to all Company Securityholders other 
than Principal Stockholders (the "Minority Securityholders"), Parent shall have 
no obligation to name in the Registration Statement any Minority Securityholder 
as a selling stockholder at the time of the original filing; provided, that:

     (i)   Parent files a post-effective amendment or amendments to the 
     Registration Statement or, if necessary, a separate registration statement,
     and uses all reasonable efforts to cause such post effective amendments or
     separate registration statement to become effective on or prior to January
     30, 1997 including (as of such date) all Minority Securityholders as
     selling stockholders so as to allow each Minority Securityholder an
     opportunity to effect sales of 33.33% of those Merger Shares received by
     such Minority Securityholder and not placed in escrow pursuant to the terms
     of the Merger Agreement and the Escrow Instrument;

     (ii)  Parent files a post-effective amendment or amendments to the 
     Registration Statement or, if necessary, a separate registration statement,
     and uses all reasonable efforts to cause such post effective amendments or
     separate registration statement to become effective on or prior to April
     30, 1997 including (as of such date) all Minority Securityholders as
     selling stockholders so as to allow each Minority Securityholder an
     opportunity to effect sales of an additional 33.33% of those Merger Shares
     (not otherwise included in the post-effective amendment referred to in
     clause (i) above) received by such Minority Securityholder and not placed
     in escrow pursuant to the terms of the Merger Agreement and the Escrow
     Instrument; and

     (iii) Parent files a post-effective amendment or amendments to the 
     Registration Statement or, if necessary, a separate registration statement,
     and uses all reasonable efforts to cause such post effective amendments or
     separate registration statement to become effective on or prior to July 30,
     1997 including (as of such date) all Minority

                                       2





<PAGE>
 
     Securityholders as selling stockholders so as to allow each Minority
     Securityholder an opportunity to effect sales of all of the remaining
     Merger Shares received by such Minority Securityholder including, without
     limitation, those Merger Shares placed in escrow pursuant to the terms of
     the Merger Agreement and the Escrow Instrument."

                                       3

<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Amendment No. 3 to 
Agreement and Plan of Reorganization to be duly executed as of the day and year 
first above written.

                                  Veterinary Centers of America, Inc.,
                                  a Delaware corporation


                                  By:  /s/ Tomas W. Fuller
                                       -----------------------------------
                                       Name:  Tomas W. Fuller
                                       Title: Chief Financial Officer, Vice
                                              President and Assistant Secretary


                                  PRI Merger Company,
                                  a Delaware corporation


                                  By:  /s/ Tomas W. Fuller
                                       -----------------------------------
                                       Name:  Tomas W. Fuller
                                       Title: Chief Financial Officer, Vice
                                              President and Assistant Secretary



                                  Pets' Rx, Inc.,
                                  a Delaware corporation


                                  By:  /s/ Richard E. Watson
                                       -----------------------------------
                                       Name:  Richard E. Watson
                                       Title: President 

<PAGE>
 
                                  Trilon Dominion Partners, LLC


                                  By:  /s/ William J. Hopke
                                       -----------------------------------
                                       Name:  William J. Hopke
                                       Title: C.O.O.



                                  Hyprom, S.A.
                                  a Swiss corporation


                                  By:  /s/ C. Dinner
                                       -----------------------------------
                                       Name:  C. Dinner
                                       Title: President 


                                  /s/ Richard Watson
                                  ----------------------------------------
                                  Richard Watson, individually and as
                                  Custodian for Andrew Watson


                                  /s/ Nancy P. Watson
                                  ----------------------------------------
                                  Nancy P. Watson


                                  /s/ John W. Hunter
                                  ----------------------------------------
                                  John W. Hunter
<PAGE>
 
                                  SCHEDULE A

                            PRINCIPAL STOCKHOLDERS

Trilon Dominion Partners, LLC

Hyprom, S.A., a Swiss corporation

Richard Watson, individually and
as Custodian for Andrew Watson

Nancy P. Watson

John W. Hunter 

<PAGE>
 
                                                                     EXHIBIT 2.3

                        I R R E V O C A B L E  P R O X Y

     THIS PROXY is made and entered into, as of the date indicated on the
signature page hereof, by and between Abbingdon Venture Partners Limited
Partnership-II, holder (the "Holder") of shares of Common Stock of The Pet
Practice, Inc., a Delaware corporation (the "Company") and Veterinary Centers of
America, Inc., a Delaware corporation ("Parent").

     With respect to the proposed Merger of the Company into Golden Merger
Corporation, a Delaware corporation, pursuant to that certain Agreement and Plan
of Reorganization, dated as of March 21, 1996 (the "Purchase Agreement"), the
Holder agrees as follows:

     1.  a.  The Holder hereby appoints Robert L. Antin and Tomas W. Fuller,
     their successors or any other designee of Parent, the sole and exclusive
     and true and lawful proxy, agent and attorney-in-fact of the Holder, with
     full power of substitution and resubstitution, to vote or to execute and
     deliver written consents or otherwise act with respect to the  3,600,000
     shares of Common Stock of the Company held by the Holder on the date hereof
     (the "Restricted Shares"), as fully, to the same extent and with the same
     effect as the Holder might or could do under any applicable laws or
     regulations governing the rights and powers of stockholders of a Delaware
     corporation, but only in connection with the approval of the Purchase
     Agreement and such other matters as may be necessary to effectuate the
     transactions contemplated under the Purchase Agreement (the "Proxy");

          b.  The Holder shall execute such additional documents and take such
     additional actions as Parent may reasonably request to effectuate or
     further secure and protect the rights of Parent under this Proxy;

          c.  Parent and the Holder intend that this Proxy is coupled with an
     interest in the Restricted Shares and in the Company, and, as a result,
     this Proxy shall be irrevocable until the date this Proxy terminates as
     provided in Section 6 hereof, whereupon it shall automatically lapse; and

          d.  The Holder hereby revokes any other proxy or proxies to act and
     vote on behalf of any and all of the Restricted Shares and hereby ratifies
     and confirms all acts and votes that the Proxy specified herein may
     lawfully perform by virtue of this authorization.

     2.   The Holder agrees that, from and after the date hereof, and until this
Proxy shall terminate in accordance with Section 6 hereof, it shall not sell,
transfer, assign, pledge, hypothecate or otherwise dispose of all or any part of
the Restricted Shares, except Holder may distribute the Restricted Shares to a
general or

                                       
<PAGE>
 
limited partner of Holder provided, prior to such distribution, such partner
executed an irrevocable proxy in form and substance identical to this
Irrevocable Proxy (except that such irrevocable proxy shall only relate to
Restricted Shares and shall not relate to, or make any representation or
warranty regarding, any other shares of Common Stock of the Company) and
delivers the same to Parent.

     3.   The Holder represents and warrants that it beneficially and of record
owns the Restricted Shares (which shares constitute all the shares of Common
Stock of the Company in which Holder has a beneficial interest) and has full
right, power and authority to vote such Restricted Shares and to grant this
Proxy with respect to such Restricted Shares pursuant hereto, and owns such
Restricted Shares free and clear of any liens, claims, encumbrances or rights or
interests of others.

     4.   The Holder represents and warrants that it shall, promptly following
the execution of this Proxy, take action to cause the stock certificates
representing the Restricted Shares to be endorsed with a legend, in form and
substance reasonably satisfactory to Parent, adequately referencing this Proxy,
including the grant to Parent of this Proxy and the transfer limitations in
Section 2 hereof.

     5.   The Holder agrees not to take any action in respect of the Holder's
ownership interest in the Restricted Shares including, without limitation, the
solicitation of proxies from other stockholders of the Company or voting of the
Restricted Shares, which may impede, or adversely affect the likelihood of, the
consummation of the transactions contemplated under the Purchase Agreement.

     6.   This Proxy shall terminate and this Proxy shall be revoked (i) only
with the written consent of Parent; or (ii) on the first to occur of (a) the
Closing (as defined in the Purchase Agreement); or (b) the termination of the
Purchase Agreement.

     7.   The Holder acknowledges that Parent's rights hereunder are unique and
that it will not have adequate remedies at law for the Holder's failure to
perform its obligations hereunder.  Accordingly, it is agreed that Parent shall
have the right to specific performance and equitable injunctive relief for the
enforcement of such obligations in addition to all other available remedies at
law or in equity.

     8.   The Holder agrees, at or prior to the Effective Time of the Merger, to
execute and deliver to Parent a written agreement in accordance with Section 8.9
of the Purchase Agreement.

                                       2
<PAGE>
 
     9.   THIS PROXY SHALL BE GOVERNED BY, AND INTERPRETED IN ACCORDANCE WITH,
THE LAWS OF THE STATE OF DELAWARE.

                                       3
<PAGE>
 
          IN WITNESS WHEREOF, this Proxy has been duly executed by or on behalf
of each party as of this 21st day of March, 1996.


ATTEST:                             VETERINARY CENTERS OF AMERICA, INC.


_________________________           ___________________________________
                                    By: Robert L. Antin
                                    Its: Chief Executive Officer



WITNESS:                            ABBINGTON VENTURE PARTNERS LIMITED
                                    PARTNERSHIP-II


_________________________           ___________________________________
                                    By:
                                    Its:

                                       4

<PAGE>
 
                            ----------------------





                     VETERINARY CENTERS OF AMERICA, INC.,

                                    Issuer,


                                      and

                        THE CHASE MANHATTAN BANK, N.A.,



                                    Trustee



                                ---------------


                                   INDENTURE


                                ---------------



                               U.S. $84,385,000
              5 1/4% Convertible Subordinated Debentures due 2006





                          Dated as of April 17, 1996
                               
<PAGE>
 
                               TABLE OF CONTENTS

<TABLE> 
<CAPTION> 
                                                                                  Page

                                   ARTICLE I
                 DEFINITIONS AND INCORPORATION BY REFERENCE  
     <S>            <C>                                                           <C>       
     SECTION 1.1.   Definitions........................................................  1     
     SECTION 1.2.   Incorporation by Reference of TIA..................................  8     
     SECTION 1.3.   Rules of Construction..............................................  8      

                                  ARTICLE II
                                THE SECURITIES

     SECTION 2.1.   Form and Dating....................................................  9     
     SECTION 2.2.   Execution and Authentication....................................... 10     
     SECTION 2.3.   Registrar and Paying Agent......................................... 11     
     SECTION 2.4.   Paying Agent to Hold Asset in Trust................................ 12     
     SECTION 2.5.   Securityholder Lists............................................... 12     
     SECTION 2.6.   Transfer and Exchange; Restrictions on Transfer.................... 12     
     SECTION 2.7.   Exchange........................................................... 18     
     SECTION 2.8.   Replacement Securities............................................. 19     
     SECTION 2.9.   Outstanding Securities............................................. 20     
     SECTION 2.10.  Treasury Securities................................................ 20     
     SECTION 2.11.  Temporary Securities............................................... 20     
     SECTION 2.12.  Cancellation....................................................... 21     
     SECTION 2.13.  Payment............................................................ 21     
     SECTION 2.14.  Defaulted Interest................................................. 22     
     SECTION 2.15.  Computation of Interest............................................ 23      

                                  ARTICLE III
                                  REDEMPTION

     SECTION 3.1.   Right of Redemption................................................ 23     
     SECTION 3.2.   Effect of Notice of Redemption..................................... 25     
     SECTION 3.3.   Deposit of Redemption Price........................................ 25     
     SECTION 3.4.   Securities Redeemed in Part........................................ 25      

                                  ARTICLE IV
                                  COVENANTS

     SECTION 4.1.   Payment of Securities.............................................. 26     
     SECTION 4.2.   Maintenance of Office or Agency.................................... 26     
     SECTION 4.3.   Corporate Existence................................................ 27     
     SECTION 4.4.   Payment of Taxes and Other Claims.................................. 27     
     SECTION 4.5.   Maintenance of Properties and Insurance............................ 27     
     SECTION 4.6.   Compliance Certificate; Notice of Default.......................... 28     
     SECTION 4.7.   Reports............................................................ 28     
     SECTION 4.8.   Limitation on Status as Investment Company......................... 29     
     SECTION 4.9.   Waiver of Stay, Extension or Usury Laws............................ 29     
     SECTION 4.10.  Rule 144A Information Requirement.................................. 29      
</TABLE>

                                      -i-
<PAGE>
 
<TABLE>
                                   ARTICLE V
                             SUCCESSOR CORPORATION
     <S>            <C>                                                                                       <C>     
     SECTION 5.1.   Limitation on Merger, Sale or Consolidation.............................................  29     
     SECTION 5.2.   Successor Corporation Substituted.......................................................  30      

                                  ARTICLE VI
                        EVENTS OF DEFAULT AND REMEDIES

     SECTION 6.1.   Events of Default........................................................................  30    
     SECTION 6.2.   Acceleration of Maturity Date; Rescission and Annulment..................................  31    
     SECTION 6.3.   Collection of Indebtedness and Suits for Enforcement by Trustee..........................  32    
     SECTION 6.4.   Trustee May File Proofs of Claim.........................................................  33    
     SECTION 6.5.   Trustee May Enforce Claims Without Possession of Securities..............................  33    
     SECTION 6.6.   Priorities...............................................................................  34    
     SECTION 6.7.   Limitation on Suits......................................................................  34    
     SECTION 6.8.   Unconditional Right of Holders to Receive Principal, Premium, Interest                           
                    And Additional Amounts...................................................................  34    
     SECTION 6.9.   Rights and Remedies Cumulative...........................................................  35    
     SECTION 6.10.  Delay or Omission Not Waiver.............................................................  35    
     SECTION 6.11.  Control by Holders.......................................................................  35    
     SECTION 6.12.  Waiver of Past Default...................................................................  35    
     SECTION 6.13.  Undertaking for Costs....................................................................  35    
     SECTION 6.14.  Restoration of Rights and Remedies.......................................................  36    
     SECTION 6.15.  Enforcement of Rights of Conversion by Holders...........................................  36     

                                  ARTICLE VII
                                    TRUSTEE

     SECTION 7.1.   Duties of Trustee....................................................................... 36     
     SECTION 7.2.   Rights of Trustee....................................................................... 37     
     SECTION 7.3.   Individual Rights of Trustee............................................................ 38     
     SECTION 7.4.   Trustee's Disclaimer.................................................................... 38     
     SECTION 7.5.   Notice of Default....................................................................... 38     
     SECTION 7.6.   Reports by Trustee to Holders........................................................... 38     
     SECTION 7.7.   Compensation and Indemnity.............................................................. 39     
     SECTION 7.8.   Replacement of Trustee.................................................................. 39     
     SECTION 7.9.   Successor Trustee by Merger, Etc........................................................ 40     
     SECTION 7.10.  Eligibility; Disqualification........................................................... 40     
     SECTION 7.11.  Preferential Collection of Claims Against Company....................................... 40      

                                 ARTICLE VIII
                          SATISFACTION AND DISCHARGE

     SECTION 8.1.   Satisfaction and Discharge of Indenture................................................. 41     
     SECTION 8.2.   Repayment to the Company................................................................ 41      

                                  ARTICLE IX
                      AMENDMENTS, SUPPLEMENTS AND WAIVERS

     SECTION 9.1.   Supplemental Indentures Without Consent of Holders...................................... 41      
</TABLE>

                                     -ii-
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                                  Page
     <S>            <C>                                                                           <C>
     SECTION 9.2.   Amendments, Supplemental Indentures and Waivers with Consent of                               
                    Holders.............................................................................  42      
     SECTION 9.3.   Compliance with TIA.................................................................  43      
     SECTION 9.4.   Revocation and Effect of Consents...................................................  43      
     SECTION 9.5.   Notation on or Exchange of Securities...............................................  43      
     SECTION 9.6.   Trustee to Sign Amendments, Etc.....................................................  43       

                                  ARTICLE X 
                                   MEETINGS

     SECTION 10.1.  Meetings and Votes of Holders.......................................................  44      
     SECTION 10.2.  Action by Holders...................................................................  46      

                                  ARTICLE XI 
                                    AGENTS

     SECTION 11.1.  Offices, Resignation, Successors, Etc. of Agents; Paying, Conversion and                      
                    Transfer Agencies...................................................................  46      

                                  ARTICLE XII
                                 SUBORDINATION

     SECTION 12.1.  Securities Subordinated to Senior Indebtedness......................................  47      
     SECTION 12.2.  No Payment on Securities in Certain Circumstances...................................  47      
     SECTION 12.3.  Securities Subordinated to Prior Payment of All Senior Indebtedness on                        
                    Dissolution, Liquidation or Reorganization..........................................  49      
     SECTION 12.4.  Securityholders to Be Subrogated to Rights of Holders of Senior Indebtedness........  49      
     SECTION 12.5.  Obligations of the Company Unconditional............................................  50      
     SECTION 12.6.  Trustee Entitled to Assume Payments Not Prohibited in Absence of Notice.............  50      
     SECTION 12.7.  Application by Trustee of Assets Deposited with It..................................  51      
     SECTION 12.8.  Subordination Rights Not Impaired by Acts or Omissions of the Company or                      
                    Holders of Senior Indebtedness
     SECTION 12.9.  Securityholders Authorize Trustee to Effectuate Subordination of                              
                    Securities..........................................................................  51      
     SECTION 12.10. Right of Trustee to Hold Senior Indebtedness........................................  52      
     SECTION 12.11. Article XII Not to Prevent Events of Default........................................  52      
     SECTION 12.12. No Fiduciary Duty of Trustee to Holders of Senior Indebtedness......................  52      

                                 ARTICLE XIII
                           CONVERSION OF SECURITIES

     SECTION 13.1.  Conversion Privilege................................................................  52      
     SECTION 13.2.  Exercise of Conversion Privilege....................................................  52      
     SECTION 13.3.  Fractional Interests................................................................  54      
     SECTION 13.4.  Adjustment of Conversion Price......................................................  54      
     SECTION 13.5.  Notice of Certain Events............................................................  54      
     SECTION 13.6.  Continuation of Conversion Privilege in Case of Reclassification,                             
                    Change, Merger, Consolidation or Sale of Assets                                               
</TABLE>
                             
                                     -iii-
<PAGE>
 
<TABLE>
                                                                                           Page
     <S>            <C>                                                                    <C>          
     SECTION 13.7.  Taxes on Conversion........................................................  56     
     SECTION 13.8.  Company to Provide Stock...................................................  56     
     SECTION 13.9.  Disclaimer of Responsibility for Certain Matters...........................  56     
     SECTION 13.10. Return of Funds Deposited for Redemption of Converted Securities...........  57      

                                  ARTICLE XIV
                                 MISCELLANEOUS

     SECTION 14.1.  TIA Controls...............................................................  57     
     SECTION 14.2.  Notices....................................................................  57     
     SECTION 14.3.  Communications by Holders with Other Holders...............................  58     
     SECTION 14.4.  Certificate and Opinion as to Conditions Precedent.........................  58     
     SECTION 14.5.  Statements Required in Certificate or Opinion..............................  58     
     SECTION 14.6.  Rules by Trustee, Paying Agent, Registrar..................................  58     
     SECTION 14.7.  Legal Holidays.............................................................  59     
     SECTION 14.8.  Taxes......................................................................  59     
     SECTION 14.9.  Governing Law..............................................................  59     
     SECTION 14.10. Agent for Service of Process...............................................  59     
     SECTION 14.11. No Adverse Interpretation of Other Agreements..............................  60     
     SECTION 14.12. No Recourse Against Others.................................................  60     
     SECTION 14.13. Successors.................................................................  60     
     SECTION 14.14. Duplicate Originals........................................................  60     
     SECTION 14.15. Severability...............................................................  60     
     SECTION 14.16. Table of Contents, Headings, Etc...........................................  60     
     SECTION 14.17. Qualification of Indenture.................................................  61     
     SECTION 14.18. Registration Rights........................................................  61      
</TABLE>

                                     -iv-
<PAGE>
 
<TABLE> 
<CAPTION> 
                                                                       Page
                                                                          

                                   EXHIBITS
<S>                                                                    <C> 
Exhibit A - Form of Security.............................................  A-1
Exhibit B - Form of Regulation S Global Security.........................  B-1
</TABLE> 

                                       -v-
<PAGE>
 
          INDENTURE, dated as of April 17, 1996, between VETERINARY CENTERS OF
AMERICA, INC., a Delaware corporation (the "Company"), and THE CHASE MANHATTAN
BANK, N.A., as Trustee.

          Each party hereto agrees as follows for the benefit of each other
party and for the equal and ratable benefit of the Holders of the Company's 5
1/4% Convertible Subordinated Debentures due 2006 and the Coupons:

                                   ARTICLE I
                  DEFINITIONS AND INCORPORATION BY REFERENCE

               SECTION 1.1  Definitions.

               "Acceleration Notice" shall have the meaning specified in Section
6.2.

               "Accredited Investor Securities" shall have the meaning specified
in Section 2.1(b).

               "Additional Amounts" shall have the meaning specified in Section
2 of the form of Registered Security and Bearer Security attached hereto as
Exhibit A.

               "Affiliate" means (i) any person directly or indirectly
controlling or controlled by or under direct or indirect common control with the
Company, (ii) any spouse, immediate family member, or other relative who has the
same principal residence of any person described in clause (i) above, and (iii)
any trust in which any person described in clause (i) or (ii) above has a
beneficial interest. For purposes of this definition, the term "control" means
the power to direct the management and policies of a person, directly or through
one or more intermediaries, whether through the ownership of voting securities,
by contract, or otherwise.

               "Agent" shall have the meaning set forth in Section 2.3.

               "Authorized Newspaper" means a leading newspaper, in an official
language of the country of publication or in the English language, customarily
published on each Business Day whether or not published on Saturdays, Sundays or
holidays, and of general circulation in the place in connection with which the
term is used or in the financial community of such place. If by reason of the
temporary or permanent suspension of publication of any newspaper or by reason
of any other cause it shall be impossible to make publication of such notice in
an Authorized Newspaper as herein provided, then such publication or other
notice in lieu thereof as shall be made by the Trustee shall constitute
sufficient publication of such notice, if such publication or other notice
shall, so far as may be possible, approximate the terms and conditions of the
publication in lieu of which it is given.

               "Bankruptcy Law" means Title 11, U.S. Code, or any similar
federal, state or foreign law for the relief of debtors.

               "Bearer Securities" shall have the meaning set forth in Section
2.1(c).

               "Board of Directors" means, with respect to any person, the Board
of Directors of such person or any committee of the Board of Directors of such
person authorized, with respect to any particular matter, to exercise the power
of the Board of Directors of such person.

               "Board Resolution" means, with respect to any person, a copy of a
resolution certified by the Secretary or an Assistant Secretary of such person
to have been duly adopted by the Board of Directors or any authorized committee
thereof and to be in full force and effect on the date of such certification,
and delivered to the Trustee.
<PAGE>
 
               "Business Day" means, with respect to any act to be performed
hereunder or under the Securities, each Monday, Tuesday, Wednesday, Thursday or
Friday that is not a day on which banking institutions in the place where such
act is to occur are authorized or obligated by applicable law, regulation or
executive order to close.

               "Capitalized Lease Obligation" means rental obligations under a
lease that are required to be capitalized for financial reporting purposes in
accordance with GAAP, and the amount of Indebtedness represented by such
obligations shall be the capitalized amount of such obligations, as determined
in accordance with GAAP.

               "Capital Stock" means, with respect to any corporation, any and
all shares, interests, rights to purchase (other than convertible or
exchangeable Indebtedness), warrants, options, participations or other
equivalents of or interests (however designated) in stock issued by that
corporation.

               "Cash" means such coin or currency of the United States of
America as at the time of payment shall be legal tender for the payment of
public and private debts.

               "Cedel" means Cedel Bank, societe anonyme.

               "Change of Control" means (i) any merger or consolidation of the
Company with or into any person or any sale, transfer or other conveyance,
whether direct or indirect, of all or substantially all of the assets of the
Company, on a consolidated basis, in one transaction or a series of related
transactions, if, immediately after giving effect to such transaction, any
"person" or "group" (as such terms are used for purposes of Sections 13(d) and
14(d) of the Exchange Act, whether or not applicable) is or becomes the
"beneficial owner," directly or indirectly, of more than 50% of the total voting
power in the aggregate normally entitled to vote in the election of directors,
managers, or trustees, as applicable, of the transferee or surviving entity,
(ii) any "person" or "group" (as such terms are used for purposes of Sections
13(d) and 14(d) of the Exchange Act, whether or not applicable) is or becomes
the "beneficial owner," directly or indirectly, of more than 50% of the total
voting power in the aggregate normally entitled to vote in the election of
directors of the Company, or (iii) during any period of 12 consecutive months
after the Closing Date, individuals who at the beginning of any such 12-month
period constituted the Board of Directors of the Company (together with any new
directors whose election by such Board or whose nomination for election by the
shareholders of the Company was approved by a vote of a majority of the
directors then still in office who were either directors at the beginning of
such period or whose election or nomination for election was previously so
approved), cease for any reason to constitute a majority of the Board of
Directors of the Company then in office. For purposes of this definition, (i)
the terms "person" and "group" shall have the meanings used for purposes of
Rules 13d-3 and 13d-5 of the Exchange Act as in effect on the Closing Date,
whether or not applicable; and (ii) the term "beneficial owner" shall have the
meaning used in Rules 13d-3 and 13d-5 under the Exchange Act as in effect on the
Closing Date, where or not applicable, except that a "person" shall not be
deemed to have "beneficial ownership" of all shares that any such person has the
right to acquire, whether such right is exercisable immediately or only after
the passage of time or upon the occurrence of certain events.

               "Change of Control Notice Date" shall have the meaning specified
in Section 3.1.

               "Closing Date" means April 17, 1996, or such other time on the
same or such other date, not later than 5:00 p.m., London time, on the fifth
Business Day in London thereafter, as the Manager and the Company may agree.

               "Closing Price" means for any day the last reported sales price
of the Common Stock, regular way, or, in case no such reported sale takes place
on such day, the average of the reported closing bid and asked prices for the
Common Stock, regular way, in either case on the New York Stock Exchange,

                                      -2-
<PAGE>
 
Inc. or, if the Common Stock is not listed or admitted to trading on such
exchange, on the principal national securities exchange on which the Common
Stock is listed or admitted to trading or, if not listed or admitted to trading
on any national securities exchange, the closing sale price quoted on the Nasdaq
National Market, or if not so quoted, as determined by the Company.

               "Code" means the Internal Revenue Code of 1986, as amended.

               "Commission" means the Securities and Exchange Commission.

               "Common Depositary" means The Chase Manhattan Bank, N.A. (London
Office), as depositary for Cedel and the Euroclear Operator.

               "Common Stock" means the Company's common stock, par value $0.001
per share, or as such stock may be reconstituted from time to time.

               "Company" means the party named as such in this Indenture until a
successor replaces it pursuant to the Indenture, and thereafter means such
successor.

               "Conversion Agent" means The Chase Manhattan Bank, N.A., in its
capacity as Conversion Agent pursuant to its appointment as such under Section
2.3, and its successor or successors as such conversion agent qualified and
appointed in accordance with Section 11.1.

               "Conversion Price" shall have the meaning specified in Section
13.1.

               "Conversion Shares" shall have the meaning specified in Section
13.1.

               "Coupon" means any interest coupon appertaining to any security.

               "Current Market Price" means, on any date, the average of the
Closing Prices for the 15 consecutive Trading Days during which the principal
trading market for the Common Stock is open commencing 25 Trading Days before
the day in question.

               "Custodian" means any receiver, trustee, assignee, liquidator,
sequestrator or similar official under any Bankruptcy Law.

               "Default" means any event or condition that is, or after notice
or passage of time or both would be, an Event of Default.

               "Defaulted Interest" shall have the meaning specified in Section
2.14.

               "Depositary" means, with respect to the Securities issuable or
issued in whole or in part in global form, the person specified in Section 2.3
as the Depositary with respect to the Securities, until a successor shall have
been appointed and become such pursuant to the applicable provision of this
Indenture, and, thereafter, "Depositary" shall mean or include such successor.

               "DTC" means The Depository Trust Company.

               "Euroclear Operator" means Morgan Guaranty Trust Company of New
York, Brussels office, as operator of the Euroclear System.

               "Event of Default" shall have the meaning specified in Section
6.1.

                                      -3-
<PAGE>
 
               "Exchange Act" means the Securities Exchange Act of 1934, as
amended, and the rules and regulations promulgated by the Commission thereunder.

               "Exchange Date" shall have the meaning specified in Section
2.7(d).

               "GAAP" means United States generally accepted accounting
principles set forth in the opinions and pronouncements of the Accounting
Principles Board of the American Institute of Certified Public Accountants and
statements and pronouncements of the Financial Accounting Standards Board
("FASB") or in such other statements by such other entity as approved by a
significant segment of the accounting profession which are in effect in the
United States; provided, however, that for purposes of determining compliance
with covenants in the Indenture, "GAAP" means such generally accepted accounting
principles which are in effect as of the Closing Date.

               "Holder" or "Securityholder" means, with respect to a Registered
Security, the person in whose name a Registered Security is registered on the
Registrar's books and, with respect to a Bearer Security, the bearer of such
Bearer Security and, with respect to a Coupon, the bearer thereof.

               "Holder Redemption Date" means a date not less than 30 nor more
than 60 days after a Change of Control Notice Date (except as otherwise required
by law).

               "Indebtedness" of any person means, without duplication, (a) all
liabilities and obligations, contingent or otherwise, of any such person, (i) in
respect of borrowed money (whether or not the recourse of the lender is to the
whole of the assets of such person or only to a portion thereof), (ii) evidenced
by bonds, notes, debentures or similar instruments, (iii) representing the
balance deferred and unpaid of the purchase price of any property or services,
except such as would constitute trade payables to trade creditors in the
ordinary course of business that are not more than 90 days past their original
due date, (iv) evidenced by bankers' acceptances or similar instruments issued
or accepted by banks, (v) for the payment of money relating to a Capitalized
Lease Obligation, or (vi) evidenced by a letter of credit or a reimbursement
obligation of such person with respect to any letter of credit; (b) all net
obligations of such person under Interest Swap and Hedging Obligations; (c) all
liabilities of others of the kind described in the preceding clause (a) or (b)
that such person has guaranteed or that is otherwise its legal liability and all
obligations to purchase, redeem or acquire any Capital Stock; and (d) any and
all deferrals, renewals, extensions, refinancings, refunding (whether direct or
indirect) of any liability of the kind described in any of the preceding clauses
(a), (b) or (c), or this clause (d), whether or not between or among the same
parties.

               "Indenture" means this Indenture, as amended or supplemented from
time to time in accordance with the terms hereof.

               "Interest Payment Date" means the stated due date of an
installment of interest on the Securities.

               "Interest Record Date" means an Interest Record Date specified in
the Securities whether or not such Interest Record Date is a Business Day.

               "Interest Swap and Hedging Obligation" means any obligation of
any person pursuant to any interest rate swap agreement, interest rate cap
agreement, interest rate collar agreement, interest rate exchange agreement,
currency exchange agreement or any other agreement or arrangement designed to
protect against fluctuations in interest rates or currency values, including,
without limitation, any arrangement whereby, directly or indirectly, such person
is entitled to receive from time to time periodic payments calculated by
applying either a fixed or floating rate of interest on a stated notional amount
in exchange for periodic payments made by such person calculated by applying a
fixed or floating rate of interest on the same notional amount.

                                      -4-
<PAGE>
 
               "Junior Securities" of any Person means any Capital Stock and any
Indebtedness of such Person that is (i) subordinated in right of payment to the
Securities and has no scheduled installment of principal due, by redemption,
sinking fund payment or otherwise, on or prior to the Stated Maturity of the
Securities and (ii) subordinated in right of payment to all Senior Indebtedness
at least to the same extent as the Securities.

               "Lien" means any mortgage, lien, pledge, charge, security
interest or other encumbrance of any kind, whether or not filed, recorded or
otherwise perfected under applicable law (including any conditional sale or
other title retention agreement and any lease deemed to constitute a security
interest and any option or other agreement to give any security interest).

               "London Office" shall have the meaning specified in Section 2.3.

               "Manager" means NatWest Securities Limited.

               "Notice of Default" shall have the meaning specified in Section
6.1(d).

               "Obligations" means any principal, premium, interest, penalties,
fees, indemnifications, reimbursements, damages and other liabilities payable
under the documentation governing any Senior Indebtedness.

               "Officer" means, with respect to the Company, the Chief Executive
Officer, the President, any Executive Vice President, Senior Vice President or
Vice President, the Chief Financial Officer, the Treasurer, the Controller, or
the Secretary of the Company.

               "Officers' Certificate" means, with respect to the Company, a
certificate signed by one or more Officers or one or more Officers and an
Assistant Secretary of the Company and otherwise complying with the requirements
of Sections 14.4 and 14.5, if applicable.

               "Opinion of Counsel" means a written opinion from legal counsel
(who, unless otherwise specified, may be an employee of the Company) who is
reasonably acceptable to the Trustee and which complies with the requirements of
Sections 14.4 and 14.5, if applicable.

               "Paying Agent" means The Chase Manhattan Bank, N.A., in its
capacity as Paying Agent pursuant to its appointment as such under Section 2.3,
and its successor or successors as such paying agent qualified and appointed in
accordance with Section 11.1, and any additional Paying Agents appointed by the
Company as described in Section 2.3.

               "Payment Blockage Period" means the period ending 179 days after
the Payment Notice is delivered as set forth in Section 12.2(b).

               "Payment Default" shall have the meaning specified in Section
12.2.

               "Payment Notice" shall have the meaning specified in Section
12.2.

               "Person" or "person" means any corporation, individual, limited
liability company, joint stock company, joint venture, partnership,
unincorporated association, governmental regulatory entity, country, state or
political subdivision thereof, trust, municipality or other entity.

               "Principal" of any Indebtedness means the principal of such
Indebtedness plus, without duplication, any applicable premium on such
Indebtedness.

                                      -5-
<PAGE>
 
               "Principal Corporate Trust Office" shall have the meaning
specified in Section 2.3.

               "Property" means any right or interest in or to property or
assets of any kind whatsoever, whether real, personal or mixed and whether
tangible or intangible.

               "QIBs" shall have the meaning specified in Section 2.1(b).

               "Redemption Date," when used with respect to any Security to be
redeemed, means the date fixed for such redemption pursuant to Article III of
the Indenture and Section 3 in the form of Security.

               "Redemption Price," when used with respect to any Security to be
redeemed, means the redemption price for such redemption pursuant to Section 3
in the form of Security, which shall include, without duplication, in each case,
accrued and unpaid interest and Additional Amounts, if any, to and including the
Redemption Date.

               "Registered Accredited Investor Securities" shall have the
meaning specified in Section 2.1(e).

               "Registered Regulation S Securities" shall have the meaning
specified in Section 2.1(c).

               "Registered Securities" shall have the meaning specified in
Section 2.1(c).

               "Registrar" shall have the meaning specified in Section 2.3.

               "Registration Rights Agreement" means the Registration Rights
Agreement, dated as of April 17, 1996, by and between the Company and the
Manager, as such agreement may be amended, modified or supplemented from time to
time in accordance with the terms thereof.

               "Regulation S Global Security" shall have the meaning specified
in Section 2.1(c).

               "Resale Restriction Termination Date" shall have the meaning
specified in Section 2.6(i).

               "Restricted Common Stock" shall have the meaning specified in
Section 13.6(b).

               "Restricted Security" shall have the meaning specified in Section
2.1(f).

               "Rule 144A Global Security" shall have the meaning specified in
Section 2.1(d).

               "Rule 144A Securities" shall have the meaning specified in
Section 2.1(b).

               "Securities" means, collectively, the 5 1/4% Convertible
Subordinated Debentures due 2006, as supplemented from time to time in
accordance with the terms hereof, issued under this Indenture and "Security"
means any of the Securities.

               "Securities Act" means the Securities Act of 1933, as amended,
and the rules and regulations of the Commission promulgated thereunder.

               "Securities Custodian" means the Trustee, as custodian with
respect to the Securities in global form, or any successor entity thereto.

               "Security Register" shall have the meaning specified in Section
2.3.

                                      -6-
<PAGE>
 
               "Senior Indebtedness" of the Company means any principal,
premium, if any, and interest or other monetary obligation, whether outstanding
on the date of this Indenture or hereafter incurred or created, on (i) any
Indebtedness of the Company (other than the Securities and Indebtedness ranking
pari passu with or subordinate to the Securities pursuant to the terms of the
instrument creating or evidencing such Indebtedness, but including guarantees
given by the Company), and (ii) any and all deferrals, renewals, extensions,
refundings, refinancings (whether direct or indirect) of any such Indebtedness.
Notwithstanding the foregoing, in no event shall Senior Indebtedness include (a)
Indebtedness of the Company owed or owing to any subsidiary of the Company or
any officer, director or employee of the Company or any subsidiary thereof or
(b) any liability for taxes owed or owing by the Company.

               "Significant Subsidiary" shall have the meaning assigned to that
term under Regulation S-X promulgated by the Commission, as in effect on the
date of this Indenture.

               "Stated Maturity" when used with respect to any Security, means
May 1, 2006.

               "Subscription Agreement" means that certain Subscription
Agreement, dated April 3, 1996, by and between the Company and the Manager, as
such agreement may be amended, modified or supplemented from time to time in
accordance with the terms thereof.

               "Subsidiary" with respect to any person, means (i) a corporation
a majority of whose Capital Stock with voting power normally entitled to vote in
the election of directors is at the time, directly or indirectly, owned by such
person, by such person and one or more Subsidiaries of such person or by one or
more Subsidiaries of such person, (ii) a partnership in which such person or a
Subsidiary of such person is, at the time, a general partner, or (iii) any other
person (other than a corporation) in which such person, one or more Subsidiaries
of such person, or such person and one or more Subsidiaries of such person,
directly or indirectly, at the date of determination thereof has at least
majority ownership interest.

               "TIA" means the Trust Indenture Act of 1939, as amended.

               "Trading Day" means each Monday, Tuesday, Wednesday, Thursday and
Friday, other than any day on which securities are not traded on the New York
Stock Exchange (or, if the Common Stock is not listed or admitted to trading
thereon, on the principal national securities exchange on which the Common Stock
is listed or admitted to trading).

               "Transfer Agent" shall have the meaning specified in Section
4.2(b).

               "Transfer Notice" means the certification set forth on the
reverse of each Security.

               "Trustee" means the party named as such in this Indenture until a
successor replaces it in accordance with the provisions of this Indenture and
thereafter means such successor.

               "Trust Officer" means any officer within the corporate trust
administration (or any successor group) of the Trustee or any other officer of
the Trustee customarily performing functions similar to those performed by the
Persons who at that time shall be such officers, and also means, with respect to
a particular corporate trust matter, any other officer of the Trustee to whom
such trust matter is referred because of such person's knowledge of and
familiarity with the particular subject.

               "U.S. Government Obligations" means direct noncallable
obligations of, or noncallable obligations guaranteed by, the United States of
America for the payment of which obligation or guarantee the full faith and
credit of the United States of America is pledged.

SECTION 1.2    Incorporation by Reference of TIA.

                                      -7-
<PAGE>
 
               Whenever this Indenture refers to a provision of the TIA, such
provision is incorporated by reference in and made a part of this Indenture. The
following TIA terms used in this Indenture have the following meanings:

               "indenture securities" means the Securities.

               "indenture securityholder" means a Holder or a Securityholder.

               "indenture to be qualified" means this Indenture.

               "indenture trustee" or "institutional trustee" means the Trustee.

               "obligor" on the indenture securities means the Company and any
other obligor on the Securities.

               All other TIA terms used in this Indenture that are defined by
the TIA, defined by TIA reference to another statute or defined by Commission
rule and not otherwise defined herein have the meanings assigned to them
thereby.

SECTION 1.3    Rules of Construction .

               Unless the context otherwise requires:

               (1)  a term has the meaning assigned to it;

               (2)  an accounting term not otherwise defined has the meaning
assigned to it in accordance with GAAP;

               (3)  "or" is not exclusive;

               (4)  words in the singular include the plural, and words in the
plural include the singular;

               (5)  provisions apply to successive events and transactions;

               (6)  "herein," "hereof" and other words of similar import refer
to this Indenture as a whole and not to any particular Article, Section or other
subdivision;

               (7)  including shall be deemed to mean "including, without
limitation,"; and

               (8)  references to Sections or Articles refer to such Section or
Article in this Indenture, unless stated otherwise.

                                      -8-
<PAGE>
 
                                  ARTICLE II
                                THE SECURITIES

SECTION 2.1    Form and Dating.

               (a)  The Company has, by the Subscription Agreement, agreed to
issue and sell to the Manager U.S. $84,385,000 aggregate principal amount of its
5 1/4% Convertible Subordinated Debentures due 2006.

               (b)  Pursuant to the Subscription Agreement, the Manager may
resell the Securities to (i) persons who are not "U.S. Persons" (as such term is
defined in Regulation S promulgated by the Commission pursuant to the Securities
Act) in transactions that meet the requirements of Regulation S, (ii) "qualified
institutional buyers" (as such term is defined in Rule 144A promulgated by the
Commission pursuant to the Securities Act and hereinafter referred to as "QIBs")
in reliance on Rule 144A (the Securities that are resold by the Manager pursuant
to Rule 144A being hereinafter referred to as the "Rule 144A Securities"), and
(iii) institutional "accredited investors" (within the meaning of Rule
501(a)(1),(2),(3) or (7) promulgated by the Commission pursuant to the
Securities Act) (the Securities that are resold by the Manager to institutional
"accredited investors" being hereinafter referred to as the "Accredited Investor
Securities").

               (c)  The Securities will initially be issued in the form of a
temporary global debenture in bearer form without coupons or conversion rights
in the aggregate principal amount of the entire issue of Securities less the
aggregate principal amount of the Rule 144A Securities and Accredited Investor
Securities concurrently issued, substantially in the form of Exhibit B hereto
(the "Regulation S Global Security"). As hereinafter provided, the Regulation S
Global Security may subsequently be exchanged for Securities in printed
definitive form either as (i) bearer Securities ("Bearer Securities") in
denominations of U.S.$1,000 and U.S.$10,000 and with interest Coupons attached
thereto, representing the semi-annual interest payable thereon, or (ii) fully
registered Securities ("Registered Regulation S Securities") in denominations of
U.S.$1,000 and integral multiples thereof, without interest Coupons attached
thereto. Bearer Securities shall be substantially in the form of Exhibit A
hereto, including the Coupons set forth therein but excluding the bracketed
legends, the bracketed schedule and the information appearing therein that
relates to the Registered Securities only. Registered Regulation S Securities
shall be substantially in the form of Exhibit A hereto excluding the bracketed
legends. The Securities which are not Bearer Securities or the Regulation S
Global Security are hereinafter collectively referred to as the "Registered
Securities."

               (d)  The Rule 144A Securities will initially be issued in the
form of a global security in the aggregate principal amount of the Rule 144A
Securities, which security shall be in substantially the form of Exhibit A
hereto, including the bracketed legends relating to clearance and settlement
through The Depository Trust Company and restrictions on transfer imposed under
the Securities Act and including the bracketed schedule but excluding the
Coupons, and is hereinafter referred to as the "Rule 144A Global Security."

               (e)  The Accredited Investor Securities will initially be issued
in fully registered form in denominations of U.S.$1,000 and integral multiples
thereof, which Securities shall be in substantially the form of Exhibit A
hereto, excluding the bracketed legend relating to clearance and settlement
through The Depository Trust Company and excluding the bracketed legend relating
to restrictions on transfer imposed under the Securities Act, the Coupons and
the bracketed schedule, and are hereinafter collectively referred to as
"Registered Accredited Investor Securities."

               (f)  During the period beginning on the Closing Date and ending
on the date which is three years after the Closing Date (or such shorter period
as shall be permitted as a result of an amendment to the rules under the
Securities Act in respect thereof), all Rule 144A Securities and all Accredited
Investor

                                      -9-
<PAGE>
 
Securities, and all Securities issued upon registration of transfer of or in
exchange for such Securities, shall be "Restricted Securities" and shall be
subject to the restrictions on transfer in Section 2.6 hereof; provided,
however, that the term "Restricted Securities" shall not include (i) Registered
Securities which are issued upon transfer of or in exchange for either Bearer
Securities or Registered Regulation S Securities or (ii) Registered Securities
as to which such restrictions on transfer have been terminated in accordance
with Section 2.6(i) hereof. All Restricted Securities shall bear the legend
required by Section 2.6(h) hereof.

               (g)  The Registered Securities, the Bearer Securities and the
Regulation S Global Security shall contain such appropriate insertions,
omissions, substitutions and other variations as are required or permitted by
this Indenture and may have such letters, numbers or other marks of
identification and such legends or endorsements placed thereon as may,
consistent herewith, be determined by the officer of the Company executing such
Securities, as evidenced by his execution of such Securities.

               (h)  The Company in issuing the Securities shall use CUSIP
numbers, and the Trustee may use such CUSIP numbers in any notice of redemption
with respect to the Securities. The Company shall obtain one CUSIP number for
the Rule 144A Securities and one for the Registered Securities that are not
Restricted Securities. In addition, the Company shall obtain an ISIN number and
a Common Code for the Regulation S Global Security, the Bearer Securities and
the Registered Regulation S Securities.

               (i)  In compliance with United States tax laws and regulations,
Bearer Securities may not be offered or sold during the 40-day period beginning
on the Closing Date, or at any time if part of a Manager's unsold allotment, to
a person who is within the United States or to a United States person other than
(a) foreign branches of United States financial institutions if such
institutions agree in writing to comply with the requirements of Section
165(j)(3)(A),(B), or (C) of the Code, and the regulations thereunder, (b) United
States offices of exempt distributors, or (c) United States offices of
international organizations or foreign central banks. United States tax laws and
regulations also require that Bearer Securities not be delivered within the
United States.

               (j)  The Securities and the Trustee's certificate of
authentication, in respect thereof, shall be substantially in the forms included
in Exhibits A and B hereto, as applicable. The Securities may have notations,
legends or endorsements required by law, stock exchange rule or usage. The
Company shall approve the forms of the Securities and any notation, legend or
endorsement on them. Any such notations, legends or endorsements not contained
in the forms of Debentures attached as Exhibits A and B hereto shall be
delivered in writing to the Trustee. Each Security shall be dated the date of
its authentication, except that Bearer Securities shall be dated April 17, 1996.

               (k)  The terms and provisions contained in the forms of
Securities shall constitute, and are hereby expressly made, a part of this
Indenture and, to the extent applicable, the Company and the Trustee, by their
execution and delivery of this Indenture, expressly agree to such terms and
provisions and to be bound thereby.

SECTION 2.2    Execution and Authentication.

               An authorized Officer of the Company shall sign each Security and
each Coupon for the Company by manual or facsimile signature. The Company's seal
shall be impressed, affixed, imprinted or reproduced on the Securities and may
be in facsimile form.

               If an Officer whose signature is on a Security or a related
Coupon was an Officer at the time of such execution but no longer holds that
office at the time the Trustee authenticates the Security, the Security and such
Coupon shall be valid nevertheless and the Company shall nevertheless be bound
by the terms of the Securities, the Coupons and this Indenture.

                                     -10-
<PAGE>
 
               A Security and the related Coupons shall not be valid until an
authorized signatory of the Trustee manually signs the certificate of
authentication on the Security but such signature shall be conclusive evidence
that the Security has been authenticated pursuant to the terms of this
Indenture.

               The Trustee shall authenticate the Securities for original issue
in the aggregate principal amount of up to U.S. $84,385,000 upon a written order
of the Company in the form of an Officers' Certificate. The Officers'
Certificate shall specify the amount of Securities to be authenticated and the
date on which the Securities are to be authenticated. The aggregate principal
amount of Securities outstanding at any time may not exceed U.S. $84,385,000,
except as otherwise provided herein. Upon the written order of the Company in
the form of an Officers' Certificate, the Trustee shall authenticate Securities
in substitution of Securities originally issued to reflect any name change of
the Company.

               The Trustee may appoint an authenticating agent acceptable to the
Company to authenticate Securities. Unless otherwise provided in the
appointment, an authenticating agent may authenticate Securities whenever the
Trustee may do so. Each reference in this Indenture to authentication by the
Trustee includes authentication by such authenticating agent. An authenticating
agent has the same rights as an Agent to deal with the Company, any Affiliate of
the Company, or any of their respective Subsidiaries.

SECTION 2.3    Registrar and Paying Agent.

               The Company hereby appoints The Chase Manhattan Bank, N.A., at
present having its principal corporate trust office at 4 Chase MetroTech Center,
Third Floor, Brooklyn, New York 11245 (together with such other offices as the
Trustee may designate for such purposes, the "Principal Corporate Trust
Office"), as its Trustee in respect of the Securities upon the terms and subject
to the conditions herein set forth (The Chase Manhattan Bank, N.A. and its
successor or successors as such Trustee qualified and appointed in accordance
with Section 7.8 hereof are herein called the "Trustee"). The Trustee shall have
the powers and authority granted to and conferred upon it herein and in the
Securities, and such further powers and authority, acceptable to it, to act on
behalf of the Company as the Company may hereafter grant to or confer upon it in
writing.

               The Company hereby appoints the Principal Corporate Trust Office
of The Chase Manhattan Bank, N.A. in the City of New York and the London office
of The Chase Manhattan Bank, N.A. located at Woolgate House, Coleman Street,
London EC2P 2HD, England (together with such other offices as the Trustee may
designate for such purposes, the "London Office"), as its Paying Agent in
respect of the Securities upon the terms and subject to the conditions herein
set forth. The Paying Agent shall have the powers and authority granted to and
conferred upon it herein and in the Securities, and such further powers and
authority, acceptable to it, to act on behalf of the Company as the Company may
hereafter grant to or confer upon it in writing. The Company may appoint one or
more additional Paying Agents from time to time and may authorize the Paying
Agent to cooperate with one or more additional Paying Agents. As used herein,
"paying agencies" shall mean paying agencies maintained by the Company as
provided in Section 4.2 hereof.

               The Company hereby appoints the Principal Corporate Trust Office
of The Chase Manhattan Bank, N.A. in the City of New York and the London Office
of The Chase Manhattan Bank, N.A. (together with such other offices as the
Trustee may designate for such purposes) as its Conversion Agent in respect of
the Securities upon the terms and subject to the conditions herein set forth,
and the Registrar, the Paying Agent, the Conversion Agent, the Transfer Agents
(as defined in Section 4.2 hereof) and the Trustee are sometimes herein referred
to severally as an "Agent" and, collectively, as the "Agents"). The Conversion
Agent shall have the powers and authority granted to and conferred upon it
herein and in the Securities, and such further powers and authority, acceptable
to it, to act on behalf of the Company as the Company may

                                     -11-
<PAGE>
 
hereafter grant to or confer upon it in writing. As used herein, "conversion
agencies" shall mean conversion agencies maintained by the Company as provided
in Section 4.2 hereof.

               The Company shall cause to be kept at the Principal Corporate
Trust Office of the Trustee a register (the register maintained in such office
being herein referred to as the "Security Register") in which, subject to such
reasonable regulations as the Trustee may prescribe, the Company shall provide
for the registration of Registered Securities and of transfers of Registered
Securities. The Trustee is hereby appointed Registrar ("Registrar") for the
purpose of registering Registered Securities and transfers of Registered
Securities as herein provided. The Company may have one or more co-Registrars.

               The Company shall enter into an appropriate written agency
agreement with any Agent not a party to this Indenture, which agreement shall
implement the provisions of this Indenture that relate to such Agent. The
Company shall promptly notify the Trustee in writing of the name and address of
any such Agent. If the Company fails to maintain a Registrar or Paying Agent,
the Trustee shall act as such.

               The Company initially appoints The Depository Trust Company to
act as Depositary with respect to the Rule 144A Global Securities.

               The Company initially appoints the Trustee to act as Securities
Custodian with respect to the Rule 144A Global Securities.

SECTION 2.5    Paying Agent to Hold Asset in Trust.

               The Company shall require each Paying Agent other than the
Trustee to agree in writing that each Paying Agent shall hold in trust for the
benefit of Holders or the Trustee all assets held by the Paying Agent for the
payment of principal of, premium, if any, interest on or Additional Amounts with
respect to, the Securities (whether such assets have been distributed to it by
the Company or any other obligor on the Securities), and shall notify the
Trustee in writing of any Default in making any such payment. The Company at any
time may require a Paying Agent to distribute all assets held by it to the
Trustee and account for any assets disbursed and the Trustee may at any time
during the continuance of any Payment Default, upon written request to a Paying
Agent, require such Paying Agent to distribute all assets held by it to the
Trustee and to account for any assets distributed. Upon distribution to the
Trustee of all assets that shall have been delivered by the Company to the
Paying Agent, the Paying Agent (if other than the Company or an Affiliate of the
Company) shall have no further liability for such assets.

SECTION 2.5    Securityholder Lists.

               The Trustee shall preserve in as current a form as is reasonably
practicable the most recent list available to it of the names and addresses of
Holders of Registered Securities. If the Trustee is not the Registrar, the
Company shall furnish to the Trustee on or before the Interest Record Date
preceding each Interest Payment Date and at such other times as the Trustee may
request in writing a list in such form and as of such date as the Trustee
reasonably may require of the names and addresses of Holders of Registered
Securities.

SECTION 2.6    Transfer and Exchange; Restrictions on Transfer.

               (a)  Upon surrender for registration of transfer of any
Registered Security at any office or agency designated for such purpose by the
Company pursuant to Section 4.2 hereof, the Company shall execute, and the
Trustee shall authenticate, register and deliver, in the name of the designated
transferee or transferees, one or more new Registered Securities of any
authorized denominations and of a like aggregate principal amount and bearing
such restrictive legends as may be required by this Indenture; provided,
however, that, with respect to any Registered Security that is a Restricted
Security, the Trustee shall not

                                     -12-
<PAGE>
 
register the transfer of such Security unless the conditions in Section 2.6(b)
hereof shall have been satisfied. The Holder of each Restricted Security, by
such Holder's acceptance thereof, agrees to be bound by the transfer
restrictions set forth herein and in the legend on such Restricted Security.

               (b)  Whenever any Restricted Security is presented or surrendered
for registration of transfer or exchange for a Registered Security registered in
a name other than that of the Holder, no registration of transfer or exchange
shall be made unless:

                    (i)  The registered holder presenting such Restricted
               Security for transfer shall have certified to the Trustee in
               writing that such registered holder is transferring such
               Restricted Security to a "qualified institutional buyer" (as
               defined in Rule 144A under the Securities Act) in compliance with
               the exemption from registration under the Securities Act provided
               by Rule 144A thereunder (or a successor provision);

                    (ii)  The registered holder presenting such Restricted
               Security for transfer shall have certified to the Trustee in
               writing that the registered holder is transferring such
               Restricted Security outside the United States in a transaction
               meeting the requirements of Rule 904 of Regulation S under the
               Securities Act;

                   (iii)  (A)  The registered holder presenting such Restricted
               Security for transfer shall have certified to the Trustee in
               writing that such registered holder is transferring such
               Restricted Security to an institutional "accredited investor"
               (within the meaning of Rule 501(a)(1),(2),(3) or (7) under the
               Securities Act) in a transaction not involving any general
               solicitation or general advertising; and (B) a broker or dealer
               registered under Section 15 of the Exchange Act shall have
               certified to the Trustee in writing that: (x) each person who
               will become a beneficial owner of the Restricted Security upon
               transfer is an institutional "accredited investor" (as such term
               is defined in Rule 501(a)(1),(2),(3) or (7) under the Securities
               Act); (y) no general solicitation or general advertising was made
               or used by such broker or dealer in connection with the offer and
               sale of such Restricted Security to such person(s); and (z) such
               institutional accredited investor has been informed that the
               Securities have not been registered under the Securities Act and
               are subject to the restrictions on transfer set forth in the
               Securities and this Indenture;

                    (iv) The registered holder presenting such Restricted
               Security for transfer shall have certified to the Trustee in
               writing that the registered holder is transferring the Registered
               Security to the Company; or

                         (v)  The registered holder presenting such Restricted
               Security for transfer shall have delivered an opinion of counsel
               acceptable in form and substance to the Company, that the
               transfer is being made pursuant to another available exemption
               from, or a transaction not otherwise subject to, the registration
               requirements of the Securities Act.

               For purposes of this Section 2.6(b), any such certification to
the Trustee in writing shall be in the form of the Transfer Notice set forth on
the reverse of such Security. In the case of a transfer pursuant to the
foregoing clauses (ii), (iii) or (v) above, the Company may require that the
registered holder deliver an opinion of counsel, certifications or other
information acceptable to it in form and substance.

               (c)  Bearer Securities may, at the option of the holder thereof,
be exchanged for an equal aggregate principal amount of Registered Regulation S
Securities in denominations of $1,000 and integral multiples thereof without
Coupons and/or Bearer Securities of authorized denominations, upon surrender of
the Bearer Securities to be exchanged at any office or agency outside the United
States designated for such purpose by the Company pursuant to Section 4.2
hereof, with all unmatured Coupons and all matured Coupons

                                     -13-
<PAGE>
 
in default thereto appertaining. If such Holder is unable to produce any such
unmatured Coupon or Coupons or matured Coupon or Coupons in default, such
exchange may be effected if the Bearer Securities are accompanied by payment in
funds acceptable to the Company in an amount equal to the face amount of such
missing Coupon or Coupons or the surrender of such missing Coupon or Coupons may
be waived by the Company if there be furnished to it and the Trustee such
security or indemnity as it may require to save it, the Trustee, the Paying
Agent and any paying agency harmless. If thereafter the Holder of such Security
shall surrender to any paying agency any such missing Coupon or Coupons in
respect of which such a payment shall have been made, such Holder shall be
entitled to receive the amount of such payment from the Company; provided,
however, that, except as otherwise provided in the form of Bearer Security set
forth in Exhibit A hereto, interest represented by Coupons shall be payable only
upon presentation and surrender of those Coupons outside of the United States,
its territories and its possessions. Bearer Securities and Coupons are
transferable upon delivery.

               (d)  Registered Securities may, at the option of the holder
thereof, be exchange for Registered Securities of any other authorized
denominations and of a like aggregate principal amount, upon surrender of the
Registered Securities to be exchanged at any office or agency designated for
such purpose by the Company pursuant to Section 4.2 hereof. Registered
Securities shall not be exchangeable for Bearer Securities. Whenever any
Registered Securities are so surrendered for exchange, the Company shall
execute, and the Trustee shall authenticate and deliver, the Registered
Securities which the holder making the exchange is entitled to receive. If the
Registered Security so surrendered for exchange is a Registered Accredited
Investor Security and the Holder thereof requests in writing that such
Registered Accredited Investor Security be exchanged for an interest in the Rule
144A Global Security, such Registered Accredited Investor Security will be
exchangeable into an equal aggregate principal amount of beneficial interests in
the Rule 144A Global Security; provided, however, that, if such Registered
Accredited Investor Security is a Restricted Security, such exchange may only be
made if such Holder certifies to the Trustee in writing that such Holder is a
QIB by completing the Transfer Notice on the reverse of such Security. Upon any
exchange as provided in the immediately preceding sentence, the Trustee shall
cancel such Registered Accredited Investor Security and cause, or direct any
custodian for the Rule 144A Global Security to cause, in accordance with the
standing instructions and procedures existing between the Depositary and any
such custodian, the aggregate principal amount of Securities represented by the
Rule 144A Global Security to be increased accordingly. If no Rule 144A Global
Securities are then outstanding, the Company shall issue and the Trustee shall
authenticate a new Rule 144A Global Security in the appropriate principal
amount.

               (e)  Any person having a beneficial interest in a Rule 144A
Global Security may upon request exchange such beneficial interest for a
Registered Security only as provided in this paragraph. Upon receipt by the
Company and the Trustee of (i) written instructions (or such other form of
instructions as is customary) on behalf of any person having a beneficial
interest in a Rule 144A Global Security and (ii) in the case of a Restricted
Security, the following additional information and documents (all of which may
be submitted by facsimile):

                    (A)  if such beneficial interest is being transferred to the
               person designated as being the beneficial owner, a certification
               to that effect from such person; or

                    (B)  if such beneficial interest is being transferred to a
               person other than the person designated as being the beneficial
               owner, a certificate from such person that the provisions of
               Section 2.6(b) hereof have been satisfied;

in which case the Trustee or any custodian for the Rule 144A Global Security, at
the direction of the Trustee shall, in accordance with the standing instructions
and procedures existing between the Depositary and such custodian, cause the
aggregate principal amount of the Rule 144A Global Security to be reduced
accordingly and, following such reduction, the Company shall execute and the
Trustee shall authenticate and deliver to the transferee a Registered Security
in the appropriate principal amount and, if such Registered 

                                     -14-
<PAGE>
 
Security is a Restricted Security, including the appropriate legend.  Registered
Securities issued in exchange for a beneficial interest in the Rule 144A Global
Security pursuant to this paragraph shall be registered in such names and in
such authorized denominations as the Trustee shall be instructed in writing.
The Trustee shall deliver such Registered Securities to the persons in whose
names such Securities are so registered.

               (f)  Notwithstanding any other provision of this Indenture (other
than the provisions set forth in Section 2.6(e) hereof), the Rule 144A Global
Security may not be transferred as a whole except by the Depositary to a nominee
of the Depositary or by a nominee of the Depositary to the Depositary or another
nominee of the Depositary or by the Depositary or any such nominee to a
successor Depositary or a nominee of such successor Depositary.

               (g)  If at any time earlier (i) the Depositary for the Rule 144A
Global Security notifies the Company and the Company notifies the Trustee in
writing that the Depositary is unwilling or unable to continue as Depositary for
the Rule 144A Global Security and a successor Depositary for the Rule 144A
Global Security is not appointed by the Company within 90 days after delivery of
such notice, or (ii) the Company, at its sole discretion, notifies the Trustee
in writing that it elects to cause the issuance of Registered Securities under
this Indenture, then the Company shall execute, and the Trustee shall
authenticate and deliver, Registered Securities in an aggregate principal amount
equal to the principal amount of the Rule 144A Global Security in exchange for
such Rule 144A Global Security (registered in the names and denominations
specified by the Depositary).

               (h)  Each certificate evidencing Restricted Securities shall bear
a legend in substantially the following form:

               THE SECURITIES EVIDENCED HEREBY HAVE NOT BEEN REGISTERED UNDER
               THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE
               "SECURITIES ACT"), OR ANY STATE SECURITIES LAWS AND NEITHER THIS
               SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE OFFERED,
               SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE
               DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION UNLESS SUCH
               TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, REGISTRATION. EACH
               PURCHASER OF THIS SECURITY IS HEREBY NOTIFIED THAT THE SELLER MAY
               BE RELYING ON THE EXEMPTION FROM THE PROVISIONS OF SECTION 5 OF
               THE SECURITIES ACT PROVIDED BY RULE 144A THEREUNDER .

               THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF,
               REPRESENTS, ACKNOWLEDGES AND AGREES FOR THE BENEFIT OF THE
               COMPANY THAT: (I) IT HAS ACQUIRED A "RESTRICTED" SECURITY WHICH
               HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT; (II) IT WILL
               NOT OFFER, SELL OR OTHERWISE TRANSFER THIS SECURITY, PRIOR TO THE
               DATE WHICH IS THREE YEARS (OR SUCH SHORTER PERIOD AS SHALL BE
               PERMITTED AS A RESULT OF AN AMENDMENT TO THE RULES UNDER THE
               SECURITIES ACT IN RESPECT THEREOF) AFTER THE LATER OF THE DATE OF
               ORIGINAL ISSUANCE HEREOF AND THE LAST DATE ON WHICH THE COMPANY
               OR ANY AFFILIATED PERSON OF THE COMPANY WAS THE OWNER OF THIS
               SECURITY (OR ANY PREDECESSOR OF SUCH SECURITY) (THE "RESALE
               RESTRICTION TERMINATION DATE") EXCEPT (A) TO THE COMPANY, (B)
               PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BEEN DECLARED
               EFFECTIVE UNDER THE SECURITIES ACT, (C) FOR SO LONG AS THIS
               SECURITY IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A, TO A
               PERSON WHO THE SELLER REASONABLY BELIEVES IS A

                                     -15-
<PAGE>
 
               "QUALIFIED INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER
               THE SECURITIES ACT) IN A TRANSACTION MEETING THE REQUIREMENTS OF
               RULE 144A, (D) PURSUANT TO OFFERS AND SALES THAT OCCUR OUTSIDE
               THE UNITED STATES WITHIN THE MEANING OF REGULATION S UNDER THE
               SECURITIES ACT, (E) IN A TRANSACTION ARRANGED BY A BROKER OR
               DEALER REGISTERED UNDER THE UNITED STATES SECURITIES EXCHANGE ACT
               OF 1934, AS AMENDED, TO AN INSTITUTIONAL "ACCREDITED INVESTOR"
               (WITHIN THE MEANING OF SUBPARAGRAPHS (a)(1),(2),(3) OR (7) OF
               RULE 501 UNDER THE SECURITIES ACT) THAT IS ACQUIRING THIS
               SECURITY FOR ITS OWN ACCOUNT, OR FOR THE ACCOUNT OF SUCH AN
               INSTITUTIONAL "ACCREDITED INVESTOR," FOR INVESTMENT PURPOSES AND
               NOT WITH A VIEW TO, OR FOR OFFER OR SALE IN CONNECTION WITH, ANY
               DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, OR (F) PURSUANT
               TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS
               OF THE SECURITIES ACT AND, IN EACH CASE, IN ACCORDANCE WITH THE
               APPLICABLE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES OR
               ANY APPLICABLE JURISDICTION; AND (III) IT WILL, AND EACH
               SUBSEQUENT HOLDER IS REQUIRED TO, NOTIFY ANY PURCHASER FROM IT OF
               THIS SECURITY OF THE RESALE RESTRICTIONS SET FORTH IN (II) ABOVE.
               IF ANY RESALE OR OTHER TRANSFER OF THIS SECURITY IS PROPOSED TO
               BE MADE PURSUANT TO CLAUSE II(E) ABOVE PRIOR TO THE DATE WHICH IS
               THREE YEARS (OR SUCH SHORTER PERIOD AS SHALL BE PERMITTED AS A
               RESULT OF AN AMENDMENT TO THE RULES UNDER THE SECURITIES ACT IN
               RESPECT THEREOF) AFTER THE DATE OF ORIGINAL ISSUANCE HEREOF, THE
               TRANSFEROR SHALL DELIVER A LETTER FROM THE TRANSFEREE CONTAINING
               CERTAIN REPRESENTATIONS AND AGREEMENTS RELATING TO THE
               RESTRICTIONS ON TRANSFER OF THIS SECURITY. ANY OFFER, SALE OR
               OTHER DISPOSITION PURSUANT TO THE FOREGOING CLAUSES (II)(D),(E)
               AND (F) IS SUBJECT TO THE RIGHT OF THE ISSUER OF THIS SECURITY
               AND THE TRUSTEE TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL,
               CERTIFICATIONS OR OTHER INFORMATION ACCEPTABLE TO THEM IN FORM
               AND SUBSTANCE. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF
               THE HOLDER AFTER THE RESALE RESTRICTION TERMINATION DATE.

               THIS SECURITY IS SUBJECT TO A REGISTRATION RIGHTS AGREEMENT DATED
               APRIL 17, 1996 BETWEEN THE COMPANY AND NATWEST SECURITIES
               LIMITED, A COPY OF WHICH MAY BE OBTAINED FROM THE COMPANY OR THE
               TRUSTEE.

               (i)  The restrictions imposed by Section 2.6(b) upon the
transferability of any particular Restricted Security shall cease and terminate
(i) when such Restricted Security has been (x) sold pursuant to an effective
registration statement under the Securities Act of (y) transferred pursuant to
Rule 144 under the Securities Act (or any successor provisions thereto), unless
the holder is an affiliate of the Company within the meaning of said Rule 144
(or such successor provision) or (ii) upon the date which is three years (or
such shorter period as shall be permitted as a result of an amendment to the
rules under the Securities Act in respect thereof) after the later of the date
of original issue and the last date on which the Company or any Affiliate of the
Company was the owner of such Restricted Security (or any predecessor security)
(the "Resale Restriction Termination Date").  Any Restricted Security as to
which such restrictions on transfer shall have expired in accordance with their
terms or shall have terminated may, upon surrender of such Restricted Security
for exchange to the Trustee in accordance with the provisions of this Section
2.6(i)

                                     -16-
<PAGE>
 
(accompanied, in the event that such restrictions on transfer have terminated by
reason of a transfer pursuant to Rule 144 (or any successor provision), by an
opinion of counsel reasonably acceptable to the Company, addressed to the
Company and the Trustee and in form and scope satisfactory to the Company, to
the effect that the transfer of such Restricted Security has been made in
compliance with Rule 144 (or such successor provision)), be exchanged for a new
Registered Security, of like tenor and aggregate principal amount, which shall
not bear the restrictive legend required by Section 2.6(h) hereof.  The Company
shall promptly inform the Trustee in writing of the effective date of any
registration statement registering the Securities under the Securities Act.

               (j)  The transfer and exchange of the Rule 144A Global Security
or beneficial interest therein shall be effected through the Depositary, in
accordance with this Indenture and the procedures of the Depositary therefor,
which shall include restrictions on transfer comparable to those set forth
herein to the extent required by the Securities Act.

               (k)  At such time as all beneficial interests in the Rule 144A
Global Security have either been exchanged for Registered Securities, redeemed,
repurchased or canceled, the Rule 144A Global Security shall be returned to or
retained and canceled by the Trustee. At any time prior to such cancellation, if
any beneficial interest in the Rule 144A Global Security is exchanged for
Registered Securities, redeemed, repurchased or canceled, the principal amount
of Securities represented by the Rule 144A Global Security shall be reduced
accordingly and an endorsement shall be made on the Rule 144A Global Security,
by the Trustee or any custodian therefor, at the direction of the Trustee, to
reflect such reduction.

               (l)  All Securities issued upon any registration of transfer or
exchange of Securities shall be the valid obligations of the Company, evidencing
the same obligations, and entitled to the same benefits under this Indenture, as
the Securities surrendered upon such registration of transfer or exchange.

               (m)  Every Registered Security presented for registration of
transfer or surrendered for exchange shall be duly endorsed, or be accompanied
by a written instrument of transfer in form satisfactory to the Company, the
Trustee and the Transfer Agent to which such Security is presented or
surrendered and the Registrar, duly executed by the Holder thereof or his
attorney duly authorized in writing. All such instruments shall comply with the
applicable provisions of this Section 2.6. The registration of the transfer of a
Registered Security by the Registrar shall be deemed to be the written
acknowledgment of such transfer on behalf of the Company.

               (n)  No service charge shall be made for any registration of
transfer or exchange, but the Company or the Transfer Agent may require payment
of a sum sufficient to cover any tax or other governmental charge that may be
imposed in connection with any registration of transfer or exchange of
Securities, other than exchanges pursuant to Section 2.7 hereof or not involving
any registration of transfer.

               (o)  Neither the Company nor the Trustee nor any of the offices
or agencies designated for the purposes specified in Section 4.2 hereof nor any
Transfer Agent shall be required (i) to exchange Bearer Securities for
Registered Securities during the period between the close of business on any
Interest Record Date and the opening of business on the next succeeding Interest
Payment Date, (ii) to exchange any Bearer Security (or portion thereof) for a
Registered Security if the Company shall determine and inform the Trustee in
writing that, as a result thereof, the Company may incur adverse consequences
under the federal income tax laws and regulations (including proposed
regulations) of the United States in effect or proposed at the time of such
exchange, or (iii) in the event of a redemption in part, (A) to register the
transfer or exchange of Registered Securities or to exchange any Bearer
Securities for Registered Securities during a period of 15 days immediately
preceding the date notice is given pursuant to Section 3.1 hereof and Section
3(e) of the Registered Securities and the Bearer Securities identifying the
serial numbers of any Securities to be redeemed, or (B) to register the transfer
or exchange of any Registered Security so selected for

                                     -17-
<PAGE>
 
redemption in whole or in part, except portions not being redeemed of Securities
being redeemed in part, or (C) to exchange any Bearer Security called for
redemption; provided, however, that a Bearer Security called for redemption may
be exchanged, on the terms and conditions set forth above, for a Registered
Security that is simultaneously surrendered, with written instruction for
payment on the Redemption Date, unless the Redemption Date is between the close
of business on any Interest Record Date and the close of business on the next
succeeding Interest Payment Date, in which case such exchange may only be made
prior to the Interest Record Date immediately preceding the Redemption Date.

SECTION 2.7.   Exchange.

               (a)  At any time and from time to time after the execution and
delivery of this Indenture, the Company may deliver Securities executed by the
Company in accordance with this Indenture to the Trustee for authentication
together with an Officers' Certificate of the Company directing such
authentication, and the Trustee shall thereupon authenticate and make such
Securities available for delivery upon and in accordance with the written order
of the Company.  No Security shall be valid or enforceable for any purpose
unless and until the certificate of authentication thereon shall have been
manually signed by a duly authorized signatory of the Trustee and such duly
executed certificate of authentication on any Security shall be conclusive
evidence that the Security has been duly authenticated and delivered hereunder.

               (b)  The Regulation S Global Security, the Rule 144A Global
Security and the Registered Accredited Investor Securities will be issued upon
payment to the Company or its order in United States dollars by wire transfer to
a United States dollar account designated by the Company, at 3:00 p.m., London
time, on the "Closing Date." Such payment will be made (1) upon authorization
from the Manager, (2) against delivery as provided in Section 2.7(c) hereof of
the amount, if any, of Rule 144A Securities and Accredited Investor Securities
as the Manager may request and as it shall direct, and (3) against the delivery
of the Regulation S Global Security for the balance of the Securities to the
Common Depositary. The Regulation S Global Security shall be held on deposit
with the Common Depositary for the accounts of the Euroclear Operator and Cedel,
for credit to the Manager's Securities Clearance Accounts (or to such other
accounts as the Manager may have specified) with the Euroclear Operator or
Cedel.

               (c)  On the Closing Date, the Company shall execute and deliver
to (i) the Manager, at the offices of Stroock & Stroock & Lavan, in The City of
New York, temporary Registered Accredited Investor Securities (which shall have
been duly authenticated by the Trustee and which may be in typewritten form) in
respect of the Accredited Investor Securities and (ii) the Depositary, at its
office in New York, the Rule 144A Global Security (which shall have been duly
authenticated by the Trustee and which may be in typewritten form) in respect of
the Rule 144A Securities. On or before the Exchange Date (as defined in Section
2.7(d)), the Company will execute and deliver to the Trustee at the Principal
Corporate Trust Office, Registered Accredited Investor Securities in the
aggregate principal amount of the Registered Accredited Investor Securities
outstanding. At the request of a Holder of temporary Registered Accredited
Investor Securities, the Trustee shall deliver to such Holder Registered
Accredited Investor Securities in exchange for an equal aggregate principal
amount of temporary Registered Accredited Investor Securities.

               (d)  On or before the Exchange Date, the Company will execute and
deliver to the Trustee, at its office in London, definitive Registered
Regulation S Securities and Bearer Securities in the aggregate principal amount
outstanding in the Regulation S Global Security and in such proportion of
Registered Regulation S Securities to Bearer Securities as the Trustee may
specify.  "Exchange Date" means the date following the expiration of the 40-day
period commencing on the Closing Date.  On or after the Exchange Date, the
Regulation S Global Security may be surrendered to the Trustee at its London
office to be exchanged, as a whole or in part, for definitive Bearer Securities
without charge, and the Trustee shall authenticate and deliver, in exchange for
such Regulation S Global Security or the portions thereof to be exchanged, an
equal aggregate principal amount of definitive Bearer Securities, but only upon
presentation to the Trustee at its London Office of a certificate of the
Euroclear Operator or Cedel with respect to the

                                     -18-
<PAGE>
 
Regulation S Global Security or portions thereof being exchanged, to the effect
that it has received a certificate or certificates satisfactory to it with
respect to Non-U.S. Person beneficial ownership on the part of the Holders of
the Securities accepted for clearance through Euroclear or Cedel, as
appropriate, dated no earlier than 15 days prior to the Exchange Date and signed
by the person appearing in its records as the owner of the Regulation S Global
Security or portions thereof being exchanged.  Similarly, after the Exchange
Date, portions of the Regulation S Global Security may be exchanged for an equal
aggregate principal amount of definitive Registered Regulation S Securities upon
presentation to the Trustee at its office in London of a request for such
exchange accompanied by a certification of Non-U.S. beneficial ownership.

               (e)  The definitive Securities and Coupons shall be printed,
lithographed or engraved or produced by any combination of these methods or may
be produced in any other manner permitted by the rules of any securities
exchange on which the Securities may be listed, all as determined by the
Officers executing such Securities and Coupons, as evidenced by such execution.

               (f)  Bearer Securities and Registered Securities may only be
issued in exchange for interests in the Temporary Regulation S Global Security
upon receipt of certification of non-U.S. beneficial ownership and undertakings
not to resell the related security in the United States or in contravention of
restrictions on resale to U.S. Persons. Bearer Securities will be delivered only
outside the United States, its territories or its possessions.

               (g)  The delivery to the Trustee by the Euroclear Operator or
Cedel of any certificate referred to above may be relied upon by the Company and
the Trustee as conclusive evidence that a corresponding certificate or
certificates has or have been delivered to the Euroclear Operator or Cedel
pursuant to the terms of this Indenture.

               (h)  Upon any such exchange of a portion of the Regulation S
Global Security for a definitive Bearer Security or Securities or a definitive
Registered Regulation S Security or Securities, the Regulation S Global Security
shall be endorsed by the Trustee to reflect the reduction of its principal
amount by an amount equal to the aggregate principal amount of such definitive
Security or Securities. Until so exchanged in full for definitive Securities,
the Regulation S Global Security shall in all respects be entitled to the same
benefits under this Indenture as definitive Securities authenticated and
delivered hereunder, except that neither the Holder thereof nor the beneficial
owners of the Regulation S Global Security shall be entitled to receive payment
of interest thereon or exercise conversion rights with respect thereto.

SECTION 2.8.   Replacement Securities.

               If a mutilated Security or a Security with a mutilated Coupon
appertaining thereto is surrendered to the Trustee or if the Holder of a
Security or Coupon claims and submits to the Trustee an affidavit or other
evidence, satisfactory to the Trustee, to the effect that the Security or Coupon
has been lost, destroyed or wrongfully taken, the Company shall issue and the
Trustee shall authenticate and deliver, in lieu of any such lost, destroyed or
wrongfully taken Security or in exchange for the Security to which a lost,
destroyed or wrongfully taken Coupon appertains (with all appurtenant Coupons
not lost, destroyed or wrongfully taken) a replacement Security with Coupons
corresponding to the Coupons, if any, appertaining to such lost, destroyed or
wrongfully taken Security or to the Security to which such lost, destroyed or
wrongfully taken Coupon appertains, if the Trustee's requirements are met.  If
required by the Trustee or the Company, such Holder must provide an indemnity
bond or other indemnity, sufficient in the judgment of both the Company and the
Trustee, to protect the Company, the Trustee or any Agent from any loss which
any of them may suffer if a Security or Coupon is replaced.  The Company may
charge such Holder for its reasonable, out-of-pocket expenses in replacing a
Security or Coupon.

                                     -19-
<PAGE>
 
               In case any such lost, destroyed or wrongfully taken Security or
Coupon has become or is about to become due and payable, the Company in its
discretion may, instead of issuing a new Security, pay such Security or Coupon;
provided, however, that principal of and any premium and interest on Bearer
Securities shall, except as otherwise provided in the Bearer Securities, be
payable only at an office or agency located outside the United States and its
possessions.

               Every replacement Security or Coupon is an additional obligation
of the Company.

               The provisions of this Section are exclusive and shall preclude
(to the extent lawful) all other rights and remedies with respect to the
replacement or payment of mutilated, destroyed, lost or stolen Securities or
Coupons.

SECTION 2.9.   Outstanding Securities.

               Securities outstanding at any time are all the Securities that
have been authenticated by the Trustee (including any Security represented by a
Rule 144A Global Security or a Regulation S Global Security) except those
canceled by it, those delivered to it for cancellation, those reductions in the
interest in a Global Security effected by the Trustee hereunder and those
described in this Section 2.9 as not outstanding. A Security does not cease to
be outstanding because the Company or an Affiliate of the Company holds the
Security, except as provided in Section 2.10 hereof.

               If a Security is replaced pursuant to Section 2.8 hereof (other
than a mutilated Security surrendered for replacement), it ceases to be
outstanding unless the Trustee receives proof satisfactory to it that the
replaced Security is held by a bona fide purchaser. A mutilated Security ceases
to be outstanding upon surrender of such Security and replacement thereof
pursuant to Section 2.8 hereof.

               If on a Redemption Date the Paying Agent (other than the Company
or an Affiliate of the Company) holds Cash or U.S. Government Obligations
sufficient to pay all of the principal and interest due on the Securities
payable on that date in accordance with Section 3.3 hereof and payment of the
Securities called for redemption is not otherwise prohibited pursuant to Article
XII hereof or otherwise, then on and after that date such Securities cease to be
outstanding and interest on them ceases to accrue.

SECTION 2.10.  Treasury Securities.

               In determining whether the Holders of the required principal
amount of Securities have concurred in any direction, amendment, supplement,
waiver or consent, Securities owned by the Company or an Affiliate of the
Company shall be disregarded, except that, for the purposes of determining
whether the Trustee shall be protected in relying on any such direction,
amendment, supplement, waiver or consent, only Securities that the Trustee
actually knows are so owned shall be disregarded.

SECTION 2.11.  Temporary Securities.

               Until definitive Securities are ready for delivery, the Company
may prepare and the Trustee shall authenticate temporary Securities. Temporary
Securities shall be substantially in the form of definitive Securities but may
have variations that the Company reasonably and in good faith considers
appropriate for temporary Securities. Without unreasonable delay, the Company
shall prepare and the Trustee shall authenticate definitive Securities in
exchange for temporary Securities. Until so exchanged, the temporary Securities
shall in all respects be entitled to the same benefits under this Indenture as
permanent Securities authenticated and delivered hereunder, except as provided
in Section 2.7(h) hereof.

                                     -20-
<PAGE>
 
SECTION 2.12.  Cancellation.

               The Company at any time may deliver Securities or Coupons to the
Trustee for cancellation.  The Registrar and the Paying Agent shall forward to
the Trustee any Securities or Coupons surrendered to them for transfer, exchange
or payment. The Trustee, or at the direction of the Trustee, the Registrar or
the Paying Agent (other than the Company or an Affiliate of the Company), and no
one else, shall cancel and, at the written direction of the Company, shall
dispose of all Securities or Coupons surrendered for transfer, exchange, payment
or cancellation.  Subject to Section 2.8 hereof, the Company may not issue new
Securities or Coupons to replace Securities or Coupons that have been paid or
delivered to the Trustee for cancellation.  No Securities shall be authenticated
in lieu of or in exchange for any Securities canceled as provided in this
Section 2.12, except as expressly permitted in the form of Securities and as
permitted by this Indenture.

SECTION 2.13.  Payment.

               (a)  The Company will pay or cause to be paid to the Paying Agent
the amounts, at the times and for the purposes, set forth herein and in the text
of the Securities, and the Company hereby authorizes and directs the Paying
Agent to make payment of the principal of, premium, if any, and interest on and
Additional Amounts, if any, on the Securities from such payments.

               (b)  At least 15 days prior to the date on which any payment of
Additional Amounts shall be required to be made pursuant to Section 2 of the
Securities, the Company will furnish the Paying Agent, each other paying agency
of the Company and the Trustee with a certificate of one of its duly authorized
officers instructing the Paying Agent and each other paying agency of the
Company as to the amounts required (i) to be deducted or withheld for or on
account of any taxes described in Section 2 of the Securities from a payment to
be made on that date and (ii) to be paid to each holder of Securities or Coupons
as Additional Amounts pursuant to that paragraph.  If the foregoing amounts are
not uniform for all Holders, then the Company's certificate shall specify by
country of residence or other factor the amounts required to be deducted or
withheld and to be paid as Additional Amounts for each Holder or class of
Holders of the Securities or Coupons.  In the absence of its receipt of any such
certificate from the Company, the Paying Agent may make payment without
deduction or withholding.  The Company hereby agrees to indemnify the Paying
Agent, each other paying agency of the Company and the Trustee for, and to hold
them harmless against, any loss, liability or expense reasonably incurred
without negligence or willful misconduct on their part, arising out of or in
connection with actions taken or omitted by any of them in reliance on any
certificate furnished pursuant to this Section.

               (c)  Interest on any Registered Security that is payable, and is
punctually paid or duly provided for, on any Interest Payment Date shall be paid
to the person in whose name that Security is registered at the close of business
on the Interest Record Date even if such Registered Security is canceled after
such Interest Record Date.  In case a Bearer Security is surrendered for
exchange for a Registered Security after the close of business on any Interest
Record Date and before the opening of business on the next succeeding Interest
Payment Date, the Trustee shall not be required to perform such transfer or
exchange of such Security.

               (d)  If a Registered Security is converted after the close of
business on an Interest Record Date and before the opening of business on the
next succeeding Interest Payment Date, the interest due on such Interest Payment
Date shall be paid on such Interest Payment Date to the person in whose name
that Security is registered at the close of business on that Interest Record
Date.

               (e)  In order to provide for the payment of the principal of,
premium, if any, and interest on the Securities (and Additional Amounts, if any,
with respect thereto) as the same shall become due and payable, the Company
shall pay to the Paying Agent to accounts specified by the Paying Agent, in same
day

                                     -21-
<PAGE>
 
funds, the following amounts (and the Company shall give notice to the Trustee
at least one full Business Day prior to the date payment is due to the Paying
Agent as to the means of such payment), to be held and applied by the Paying
Agent as hereinafter set forth:

                    (i)  The Company shall pay to the Paying Agent on the
               Business Day immediately prior to each Interest Payment Date an
               amount sufficient to pay the interest due on (and Additional
               Amounts, if any, on) all the Securities outstanding on such
               Interest Payment Date, and the Paying Agent shall apply the
               amounts so paid to it to the payment of such interest (and
               Additional Amounts, if any) on such Interest Payment Date.

                    (ii)  If the Company shall elect, or shall be required, to
               redeem all or any part of the Securities in accordance with
               Section 3.1 hereof, the Company will pay to the Paying Agent
               (other than the Company or an Affiliate of the Company) on the
               Business Day immediately prior to the Redemption Date thereof an
               amount sufficient (with any amount then held by the Paying Agent
               and available for the purpose) to pay the Redemption Price of the
               Securities called for redemption or entitled to be redeemed,
               together with accrued interest thereon (and Additional Amounts,
               if any, with respect thereto) to the Redemption Date fixed for
               redemption and not paid pursuant to clause (e)(i) of this Section
               2.13, and the Paying Agent shall apply such amount to the payment
               of the Redemption Price and accrued interest (and Additional
               Amounts, if any) in accordance with the terms of Article III
               hereof.

                    (iii)  On the Business Day immediately prior to the Stated
               Maturity of the Securities, the Company shall pay to the Paying
               Agent an amount which, together with any amounts then held by the
               Paying Agent, and available for payment thereof, shall be equal
               to the entire amount of principal and interest (and Additional
               Amounts, if any) to be due on such maturity date on all the
               Securities then outstanding, and the Paying Agent shall apply
               such amount to the payment of the principal of and interest on
               (and Additional Amounts, if any, on) the Securities in accordance
               with the terms of the Securities.

SECTION 2.14.  Defaulted Interest.

               Any interest on any Registered Security which is payable, but is
not punctually paid or duly provided for, on any Interest Payment Date plus, to
the extent lawful, any interest payable on the defaulted interest (herein called
"Defaulted Interest") shall forthwith cease to be payable to the registered
holder on the relevant Interest Record Date, and such Defaulted Interest may be
paid by the Company, at its election in each case, as provided in clause (1) or
(2) below:

               (1)  The Company may make payment of any Defaulted Interest to
the Holder of a Registered Security on a subsequent record date established by
notice given by mail by or on behalf of the Company to such Holder not less than
15 days preceding such subsequent record date, such record date to be not less
than 10 days preceding the date of payment of such Defaulted Interest.

               (2)  The Company may make payment of any Defaulted Interest in
any other lawful manner not inconsistent with the requirements of any securities
exchange on which the Securities may be listed, and upon such notice as may be
required by such exchange, if, after notice given by the Company to the Trustee
of the proposed payment pursuant to this clause, such manner shall be deemed
reasonably practicable by the Trustee.

               Any Defaulted Interest payable in respect of any Bearer Security
shall be payable pursuant to such procedures as may be satisfactory to the
Trustee in such manner that there is no discrimination between the Holders of
Registered Securities and Bearer Securities, and notice of the payment date
therefor

                                     -22-
<PAGE>
 
shall be given by the Trustee, in the name and at the expense of the Company, in
the manner provided in Section 14.2 hereof.

               Subject to the foregoing provisions of this Section 2.14, each
Security delivered under this Indenture upon transfer of or in exchange for or
in lieu of any other Security shall carry the rights to interest accrued and
unpaid, and to accrue, which were carried by such other Security.

SECTION 2.15.  Computation of Interest.

               Interest on the Securities shall be computed on the basis of a
360-day year of twelve 30-day months.


                                  ARTICLE III
                                   REDEMPTION

SECTION 3.1.   Right of Redemption.

               If, under the circumstances described in Section 3 of the
Registered Securities and Bearer Securities, the Company shall elect or be
required to redeem the outstanding Securities, the following provisions shall be
applicable:

               (a)  Except in the case of redemption pursuant to Section 3(d) of
the Registered Securities and the Bearer Securities (in which case notice shall
be given by the Company as provided in subsection (c) of this Section 3.1), the
Company shall, at least 75 days (or such shorter period as shall be reasonably
acceptable to the Trustee) before the date designated for such redemption, give
written notice to the Agents of its election to redeem the outstanding
Securities on the Redemption Date specified in such notice and state in such
notice that the conditions precedent to such redemption have occurred and
describe them, and shall request the Trustee to arrange for publication and
mailing of the notice specified in clause (b) below.

               (b)  In the case the Company shall give notice to the Agents of
its election to redeem the Securities, the Trustee shall cause to be given to
Holders on behalf of and at the expense of the Company a notice of redemption in
accordance with Section 14.2 hereof. The Trustee shall send a copy of such
notice of redemption to the Company, the Paying Agent (if different from the
Trustee) and each other paying agency of the Company. In the case of a
redemption in whole, notice will be given once not more than 60 nor less than 30
days prior to the Redemption Date. In the case of a partial redemption, notice
will be given twice, the first such notice to be given not more than 60 nor less
than 45 days prior to the Redemption Date and the second such notice to be given
not more than 45 and not less than 30 days prior to the Redemption Date. The
Trustee shall notify the Company promptly of the portions of outstanding
Securities to be called for redemption as determined pursuant to Section 3(a) of
the Registered Securities and Bearer Securities.

               (c)  Under the circumstances described in Section 3(d) of the
Registered Securities and Bearer Securities concerning the redemption of
outstanding Securities at the option of the Holders thereof, the following
provisions shall be applicable:

                    (i)  The Company shall give notice to the Trustee of the
               occurrence of a Change of Control immediately upon the occurrence
               of such Change of Control or, if later, immediately upon learning
               of the occurrence of such Change of Control (provided, that the
               Company shall be deemed to have knowledge of any information
               contained in any Statement on Schedule 13D or 13G filed with the
               Commission). Such notice shall state:

                                      -23
<PAGE>
 
                    A.   The Holder Redemption Date in respect of such Change of
                         Control;

                    B.   The Redemption Price as set forth in Section 3(d) of
                         the Registered Securities and Bearer Securities;

                    C.   The place or places of payment of the Registered
                         Securities and Bearer Securities; and

                    D.   Such other information as the Company shall deem
                         advisable.

                    (ii)  The Trustee shall cause to be given to the Holders on
               behalf of the Company a notice of entitlement to redeem in
               accordance with the provisions of Section 14.2 hereof. Such
               notice shall be given on behalf and at the expense of the Company
               and shall be given not later than 30 days after the later of the
               Exchange Date, the date of the occurrence of a Change of Control
               or the date of receipt of notice by the Trustee from the Company
               of such Change of Control (the date on which such notice is given
               by the Trustee shall be the "Change of Control Notice Date").

                    (iii) Upon the deposit of any of the Registered Securities
               or Bearer Securities with the agency designated by the Company as
               the place for payment of the Registered Securities and Bearer
               Securities together with a duly signed and completed Redemption
               Notice in the form set forth on the reverse of the Bearer
               Securities and Registered Securities, all in accordance with the
               provisions of Section 3 of the Registered Securities and Bearer
               Securities, the Holder of such Registered Security and Bearer
               Security shall be entitled to receive a non-transferable receipt
               evidencing such deposit.

                    (iv)  The Trustee shall notify the Company on each Business
               Day in the five Business Days prior to the Holder Redemption Date
               for outstanding Securities to be redeemed under this Section
               3.1(c) of the amount required to redeem such Securities.

               (d)  Notices relating to the redemption of Securities whether at
the option of the Company or the Holder thereof shall specify: the Redemption
Date or the Holder Redemption Date, as the case may be; the Redemption Price;
the place or places of payment; that payment will be made upon presentation and
surrender of the Securities to be redeemed, together, in the case of a Bearer
Security, with all appurtenant Coupons, if any, maturing subsequent to the
Redemption Date; that interest accrued to the Redemption Date will be paid as
specified in such notice; that on and after said date interest thereon will
cease to accrue; that the Holder will have the right to convert such Holder's
Securities until the close of business on the fifth day (or if such day is not a
Business Day, the next succeeding Business Day) preceding the related Redemption
Date or Holder Redemption Date, as the case may be; and such other information
as the Company may wish to include. In the case of a redemption by the Company
at the option of the Holder of a Security, the notices given by the Trustee
informing a Holder of such Holder's entitlement to redeem shall also specify
that a Holder electing redemption will be entitled to revoke its election by
delivering a written notice of such revocation, together with the Holder's
nontransferable receipt for such Security, to the agency designated by the
Company as the place for the payment of the Securities to be so redeemed not
later than the Holder Redemption Date in the case of a redemption pursuant to
Section 3(d) of the Registered Securities and Bearer Securities. In the case of
a redemption in part at the option of the Company, notices shall specify the
aggregate principal amount of Securities to be redeemed and the aggregate
principal amount of Securities outstanding after such partial redemption. The
first notice shall specify the last date on which exchanges or transfers of
Securities may be made (in accordance with Section 2.6(o) hereof), and the
second notice shall specify the serial numbers of the Securities and the
portions thereof called for redemption. In the case of a redemption in whole or
in part by the Company, notices shall specify the date the conversion privilege
expires in accordance with Section 4(a) of the Registered

                                     -24-
<PAGE>
 
Securities and Bearer Securities.  Such notices shall also state that the
conditions precedent, if any, to such redemption have occurred and, in the case
of a redemption pursuant to Section 3(d) of the Registered Securities and Bearer
Securities, the last day for surrender of the Securities being redeemed.

SECTION 3.2.   Effect of Notice of Redemption.

               Once notice of redemption is made in accordance with Section 3.1
hereof, Securities called for redemption become due and payable on the
Redemption Date and at the Redemption Price, including accrued and unpaid
interest and Additional Amounts, if any, to the Redemption Date.  Upon surrender
to the Trustee or Paying Agent, such Securities called for redemption shall be
paid at the Redemption Price, including accrued and unpaid interest and
Additional Amounts, if any, to the Redemption Date; provided that if the
Redemption Date is after a regular Interest Record Date and on or prior to the
corresponding Interest Payment Date, the accrued interest to the Redemption Date
and Additional Amounts, if any, shall be payable on the Redemption Date to the
Holder of the redeemed Securities registered on the relevant Interest Record
Date; and provided, further, that if a Redemption Date is not a Business Day,
payment shall be made on the next succeeding Business Day and no interest or
Additional Amounts shall accrue for the period from such Redemption Date to such
succeeding Business Day.

SECTION 3.3.   Deposit of Redemption Price.

               On the Business Day immediately prior to the Redemption Date, the
Company shall deposit with the Paying Agent (other than the Company or an
Affiliate of the Company) Cash sufficient to pay the Redemption Price of,
including accrued and unpaid interest on, and Additional Amounts with respect
to, all Securities to be redeemed on such Redemption Date (other than Securities
or portions thereof called for redemption on that date that have been delivered
by the Company to the Trustee for cancellation).  The Paying Agent shall
promptly return to the Company any Cash so deposited which is not required for
that purpose upon the written request of the Company.

               If the Company complies with the preceding paragraph and the
other provisions of this Article III and payment of the Securities called for
redemption is not prohibited under Article XII hereof or otherwise, interest and
Additional Amounts on the Securities to be redeemed will cease to accrue on the
applicable Redemption Date, whether or not such Securities are presented for
payment. Notwithstanding anything herein to the contrary, if any Security
surrendered for redemption in the manner provided in the Securities shall not be
so paid upon surrender for redemption because of the failure of the Company to
comply with the preceding paragraph, interest and Additional Amounts shall
continue to accrue and be paid from the Redemption Date until such payment is
made on the unpaid principal, and, to the extent lawful, on any interest not
paid on such unpaid principal, in each case at the rate and in the manner
provided in Section 4.1 hereof and the Security.

SECTION 3.4.   Securities Redeemed in Part.

               Upon surrender of a Security that is to be redeemed in part, the
Company shall execute and the Trustee shall authenticate and deliver to the
Holder, without service charge to the Holder, a new Security or Securities equal
in principal amount to the unredeemed portion of the Security surrendered.

                                     -25-
<PAGE>
 
                                  ARTICLE IV
                                   COVENANTS

SECTION 4.1.   Payment of Securities.

               The Company shall punctually pay the principal of, premium, if
any, interest on, and Additional Amounts, if any, with respect to, the
Securities on the dates and in the manner provided in the Securities, as
applicable. An installment of principal of, premium, if any, interest on, or
Additional Amounts, if any, with respect to, the Securities shall be considered
paid on the date it is due if the Trustee or Paying Agent (other than the
Company or an Affiliate of the Company) holds for the benefit of the Holders on
that date Cash deposited and designated for and sufficient to pay the
installment.

               The Company shall pay interest on overdue principal and on
overdue installments of interest at the rate specified in the Securities
compounded semi-annually, to the extent lawful.

SECTION 4.2.   Maintenance of Office or Agency.

               (a)  So long as any of the Registered Securities remain
outstanding or until monies for the payment of all principal of, premium, if
any, and interest on (and Additional Amounts with respect to) all outstanding
Securities shall have been made available at the office of the Paying Agent and
shall have been returned to the Company as provided in Section 8.2 hereof, the
Company will maintain in The City of New York, an office or agency where the
Registered Securities may be presented or surrendered for payment, an office or
agency where the Securities may be surrendered for conversion as provided in
this Indenture and an office or agency where notices and demands to or upon the
Company with respect to the Registered Securities or this Indenture may be
served, in each case which office or agency shall be a bank or trust company
organized, in good standing and doing business under the laws of the United
States of America or of any State of the United States of America. So long as
any Bearer Securities remain outstanding or until monies for the payment of all
principal of, premium, if any, and interest on (and Additional Amounts with
respect to) all outstanding Bearer Securities shall have been made available at
the office of the Paying Agent and shall have been returned to the Company as
provided in Section 8.2 hereof, the Company will maintain, in at least one city
in Western Europe, which shall be Luxembourg so long as the Securities are
listed on the Luxembourg Stock Exchange, an office or agency where Bearer
Securities may be surrendered for payment or conversion pursuant to Section 2.6
hereof and where notices and demands to or upon the Company in respect of the
Bearer Securities of that series or of this Indenture may be served. The Company
now intends to maintain additional agencies (subject to applicable laws and
regulations) where Bearer Securities and Coupons may be surrendered for payment,
where Registered Securities may be surrendered for payment and where Securities
may be surrendered for conversion in London, England, and during such period to
keep the Agents advised of the names and locations of such agencies. Unless the
Company shall otherwise notify each of the Agents in writing, the sole such
paying agencies and conversion agencies shall be the agencies specified in the
Securities.

               (b)  So long as there shall be Securities outstanding or until
monies for the payment of all principal of, premium, if any, and interest on
(and Additional Amounts with respect to) all outstanding Securities shall have
been made available at the office of the Paying Agent and shall have been
returned to the Company as provided in Section 8.2 hereof, the Company shall
maintain a Security Registrar and additional transfer agencies (each, a
"Transfer Agent" and, collectively, the "Transfer Agents") (i) where Registered
Securities may be surrendered for registration of transfer or for exchange for
Registered Securities in The City of New York and (ii) in at least one city in
Western Europe, which shall be Luxembourg so long as the Securities are listed
on the Luxembourg Stock Exchange, where Registered Securities may be surrendered
for purposes of such transfer or exchange, and where Bearer Securities may be
delivered in exchange for Bearer Securities or for Registered Securities.
Consistent with applicable laws and regulations, including the provisions of the
federal income tax laws of the United States, such agencies

                                     -26-
<PAGE>
 
may be the same agencies as or different agencies from those maintained by the
Company pursuant to Section 4.2(a). The Company hereby appoints the London
Office at Woolgate House, Coleman Street, London EC2P 2HD, England of The Chase
Manhattan Bank, N.A. and Chase Manhattan Bank Luxembourg S.A., 5 Rue Plaetis, L-
2338 Luxembourg, as Transfer Agents for such transfers and exchanges. The
registration of transfer or exchange of Registered Securities shall only be made
by the Trustee in The City of New York.

               (c)  The Company will give to the Trustee written notice of the
locations of such offices or agencies and of any change in the locations
thereof.  If at any time the Company shall fail to maintain any such offices or
agencies or shall fail to give such notice of the location or of any change in
the locations thereof, presentations, surrenders, notices and demands in respect
of Registered Securities may be made or served at the principal corporate trust
office of the Trustee in The City of New York and in respect of Bearer
Securities may be made or served at the London Office at Woolgate House, Coleman
Street, London EC2P 2HD, England of The Chase Manhattan Bank, N.A. at which at
any particular time its corporate trust business shall be administered.

SECTION 4.3.   Corporate Existence.

               Subject to Article V hereof, the Company shall do or cause to be
done all things necessary to preserve and keep in full force and effect its
corporate existence and the corporate or other existence of each of its
Significant Subsidiaries in accordance with the respective organizational
documents of each of them and the rights (charter and statutory) and corporate
franchises of the Company and each of its Significant Subsidiaries; provided,
however, that the Company shall not be required to preserve, with respect to
itself, any right or franchise, and with respect to any of its Significant
Subsidiaries, any such existence, right or franchise, if (a) the Board of
Directors of the Company shall reasonably determine (evidenced by a Board
Resolution certified by the Secretary of the Company and delivered to the
Trustee) that the preservation thereof is no longer desirable in the conduct of
the business of such entity and (b) the loss thereof is not disadvantageous in
any material respect to the Holders.

SECTION 4.4.   Payment of Taxes and Other Claims.

               Except with respect to immaterial items, the Company shall, and
shall cause each of its Subsidiaries to, pay or discharge or cause to be paid or
discharged, before the same shall become delinquent, (i) all taxes, assessments
and governmental charges (including withholding taxes and any penalties,
interest and additions to taxes) levied or imposed upon the Company or any of
its Subsidiaries or any of their respective properties and assets and (ii) all
lawful claims, whether for labor, materials, supplies, services or anything
else, which have become due and payable and which by law have or may become a
Lien upon the property and assets of the Company or any of its Subsidiaries;
provided, however, that neither the Company nor any Subsidiary shall be required
to pay or discharge or cause to be paid or discharged any such tax, assessment,
charge or claim whose amount, applicability or validity is being contested in
good faith by appropriate proceedings and for which disputed amounts adequate
reserves have been established in accordance with GAAP.

SECTION 4.5.   Maintenance of Properties and Insurance.

               The Company shall cause all material properties used or useful to
the conduct of its business and the business of each of its Subsidiaries to be
maintained and kept in good condition, repair and working order (reasonable wear
and tear excepted) and supplied with all necessary equipment and shall cause to
be made all necessary repairs, renewals, replacements, betterments and
improvements thereof, all as in their reasonable judgment may be necessary, so
that the business carried on in connection therewith may be properly conducted
at all times; provided, however, that nothing in this Section 4.5 shall prevent
the Company or any Subsidiary from discontinuing any operation or maintenance of
any of such properties, or

                                     -27-
<PAGE>
 
disposing of any of them, if such discontinuance or disposal is (a), in the
reasonable judgment of the Board of Directors of the Company (evidenced by a
Board Resolution certified by the Secretary of the Company and delivered to the
Trustee), desirable in the conduct of the business of such entity and (b) not
disadvantageous in any material respect to the Holders.

               The Company shall provide, or cause to be provided, for itself
and each of its Subsidiaries, insurance (including appropriate self-insurance)
against loss or damage of the kinds that, in the reasonable, good faith opinion
of the Company is adequate and appropriate for the conduct of the business of
the Company and such Subsidiaries in a prudent manner, with (except for self-
insurance) reputable insurers or with the government of the United States of
America or an agency or instrumentality thereof, in such amounts, with such
deductibles, and by such methods as shall be customary, in the reasonable, good
faith opinion of the Company and adequate and appropriate for the conduct of the
business of the Company and such Subsidiaries in a prudent manner for entities
similarly situated in the industry, unless failure to provide such insurance
(together with all other such failures) would not have a material adverse effect
on the financial condition or results of operations of the Company or such
Subsidiary.

SECTION 4.6.   Compliance Certificate; Notice of Default.

               (a)  The Company shall deliver to the Trustee within 120 days
after the end of its fiscal year an Officers' Certificate complying with Section
314(a)(4) of the TIA and stating that a review of its activities and the
activities of its Subsidiaries during the preceding fiscal year has been made
under the supervision of the signing Officers with a view to determining whether
the Company has kept, observed, performed and fulfilled its obligations under
this Indenture and further stating, as to each such Officer signing such
certificate, whether or not the signer knows of any failure by the Company or
any Subsidiary of the Company to comply with any conditions or covenants in this
Indenture and, if such signor does know of such a failure to comply, the
certificate shall describe such failure with particularity. The Officers'
Certificate shall also notify the Trustee should the relevant fiscal year end on
any date other than the current fiscal year end date.

               (b)  The Company shall, so long as any of the Securities are
outstanding, deliver to the Trustee, promptly upon becoming aware of any
Default, Event of Default or fact which would prohibit the making of any payment
to or by the Trustee in respect of the Securities, an Officers' Certificate
specifying such Default, Event of Default or fact and what action the Company is
taking or proposes to take with respect thereto.  The Trustee shall not be
deemed to have knowledge of any Default, any Event of Default or any such fact
unless one of its Trust Officers receives written notice thereof from the
Company or any of the Holders.

SECTION 4.7.   Reports.

               Whether or not the Company is subject to the reporting
requirements of Section 13 or 15(d) of the Exchange Act, the Company shall
deliver to the Trustee and to each Holder identified to the Company, and to
prospective purchasers of Securities identified to the Company by NatWest
Securities Limited, within 15 days after it is or would have been required to
file such with the Commission, annual and quarterly consolidated financial
statements substantially equivalent to financial statements that would have been
included in reports filed with the Commission if the Company was subject to the
requirements of Section 13 or 15(d) of the Exchange Act, including, with respect
to annual information only, a report thereon by the Company's certified
independent public accountants as such would be required in such reports to the
Commission and, in each case, together with a management's discussion and
analysis of financial condition and results of operations which would be so
required.

                                     -28-
<PAGE>
 
SECTION 4.8.   Limitation on Status as Investment Company.

               Neither the Company nor any of its Subsidiaries shall become an
"investment company" (as that term is defined in the Investment Company Act of
1940, as amended), or otherwise become subject to regulation under the
Investment Company Act.

SECTION 4.9.   Waiver of Stay, Extension or Usury Laws.

               The Company covenants (to the extent that it may lawfully do so)
that it will not at any time insist upon, plead, or in any manner whatsoever
claim or take the benefit or advantage of, any stay or extension law or any
usury law or other law which would prohibit or forgive the Company from paying
all or any portion of the principal of, premium of, interest on, or Additional
Amounts with respect to, the Securities as contemplated herein, wherever
enacted, now or at any time hereafter in force, or which may affect the
covenants or the performance of this Indenture; and (to the extent that it may
lawfully do so) the Company hereby expressly waives all benefit or advantage of
any such law, and covenants that it will not hinder, delay or impede the
execution of any power herein granted to the Trustee, but will suffer and permit
the execution of every such power as though no such law had been enacted.

SECTION 4.10.  Rule 144A Information Requirement.

               The Company shall furnish to the Holders or beneficial holders of
the Securities or the underlying Common Stock and prospective purchasers of
Securities or the underlying Common Stock designated by the Holders of
Securities or the underlying Common Stock, upon their request, the information
required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act
until such time as the Securities are no longer "restricted securities" within
the meaning of Rule 144 under the Securities Act.

                                   ARTICLE V
                             SUCCESSOR CORPORATION

SECTION 5.1.   Limitation on Merger, Sale or Consolidation.

               (a)  The Company shall not, directly or indirectly, consolidate
with or merge with or into another Person or sell, lease, convey or transfer all
or substantially all of its assets (computed on a consolidated basis), whether
in a single transaction or a series of related transactions, to another Person
or group of affiliated Persons, unless (i) either (A) in the case of a merger or
consolidation, the Company is the surviving entity or (B) the resulting,
surviving or transferee entity is a corporation organized under the laws of the
United States, any state thereof or the District of Columbia and expressly
assumes by supplemental indenture all of the obligations of the Company in
connection with the Securities and the Indenture; (ii) no Default or Event of
Default shall exist or shall occur immediately before or after giving effect on
a pro forma basis to such transaction; and (iii) the Company has delivered to
the Trustee an Officers' Certificate and an Opinion of Counsel, each stating
that such consolidation, merger or transfer and, if a supplemental indenture is
required, such supplemental indenture comply with the Indenture and that all
conditions precedent relating to such transactions have been satisfied.

               (b)  For purposes of clause (a) of this Section 5.1, the sale,
lease, conveyance, assignment, transfer, or other disposition of all or
substantially all of the properties and assets of one or more Subsidiaries of
the Company, which properties and assets, if held by the Company instead of such
Subsidiaries, would constitute all or substantially all of the properties and
assets of the Company on a consolidated basis, shall be deemed to be the
transfer of all or substantially all of the properties and assets of the
Company.

                                     -29-
<PAGE>
 
SECTION 5.2.   Successor Corporation Substituted.

               Upon any consolidation or merger or any sale, lease, conveyance
or transfer of all or substantially all of the assets of the Company in
accordance with the foregoing, the successor corporation formed by such
consolidation or into which the Company is merged or to which such sale, lease,
conveyance or transfer is made, shall succeed to, and be substituted for, and
may exercise every right and power of, the Company under the Indenture with the
same effect as if such successor corporation had been named therein as the
Company, and when a successor corporation duly assumes all of the obligations of
the Company pursuant hereto and pursuant to the Securities, the predecessor
(except in the case of a lease) shall be released from such obligations (except
with respect to any obligations that arise from or as a result of such
transaction).

                                   ARTICLE VI
                         EVENTS OF DEFAULT AND REMEDIES

SECTION 6.1.   Events of Default.

               "Event of Default," wherever used herein, means any one of the
following events (whatever the reason for such Event of Default and whether it
shall be caused voluntarily or involuntarily or effected, without limitation, by
operation of law or pursuant to any judgment, decree or order of any court or
any order, rule or regulation of any administrative or governmental body):

                    (a)  the failure by the Company to pay any installment of
               interest or Additional Amounts (as described in Section 2 of the
               Securities) with respect to any of the Securities as and when due
               and payable and the continuance of any such failure for a period
               of 30 days after the date when due;

                    (b)  the failure by the Company to pay all or any part of
               the principal, or premium, if any, on the Securities when and as
               the same becomes due and payable at maturity or upon redemption,
               by acceleration or otherwise;

                    (c)  the failure by the Company to perform any conversion of
               the Securities required under this Indenture and the continuance
               of such failure for a period of 60 days;

                    (d)  the failure by the Company duly to perform or observe
               any other term, covenant or agreement contained in any of the
               Securities or in this Indenture for a period of 60 days after the
               date on which written notice of such failure, requiring the
               Company to remedy the same and stating that such notice is a
               "Notice of Default" hereunder, shall first have been given to the
               Company by the Trustee or to the Company and the Trustee by the
               holders of at least 25% in aggregate principal amount of the
               Securities at the time outstanding; provided, however, that, in
               the event the Company shall within the aforesaid period of 60
               days commence legal action in a court of competent jurisdiction
               seeking a determination that the Company had not failed to duly
               perform or observe the term or terms, covenant or covenants or
               agreement or agreements specified in the aforesaid notice, such
               failure shall not be an Event of Default unless the same
               continues for a period of 10 days after the date of any final
               determination to the effect that the Company had failed to duly
               perform or observe one or more of such terms, covenants or
               agreements;

                    (e)  the entry, by a court having jurisdiction in the
               premises, of a decree or order for relief in respect of the
               Company or any Significant Subsidiary of the Company in an
               involuntary case or proceeding under any applicable bankruptcy,
               insolvency, reorganization or other similar law now or hereafter
               in effect, or appointing a receiver,

                                     -30-
<PAGE>
 
               liquidator, assignee, custodian, trustee, sequestrator (or
               similar official) of the Company or such subsidiary or for any
               substantial part of the property of either of them or ordering
               the winding-up or liquidation of the affairs of its and such
               decree or order shall remain unstayed and in effect for a period
               of 60 consecutive days;

                    (f)  the commencement by the Company or a Significant
               Subsidiary of the Company of a voluntary case or proceeding under
               any applicable bankruptcy, insolvency, reorganization or other
               similar law now or hereafter in effect, or its consent to the
               entry of an order for relief in an involuntary case under any
               such law or to the appointment of or taking possession by a
               receiver, liquidator, assignee, trustee, custodian, sequestrator
               (or similar official) of the Company or such subsidiary or any
               substantial part of its property, or its making of any general
               assignment for the benefit of creditors, or shall admit in
               writing its inability to pay its debts as they become due;

                    (g)  the Company shall default in the payment of the
               principal of, premium, if any, or interest when due on any
               Indebtedness of the Company or any of its Significant
               Subsidiaries that extends beyond any applicable grace period with
               respect thereto, or an acceleration so that the same shall be or
               become due and payable prior to the date on which the same would
               otherwise have become due and payable of any Indebtedness of the
               Company or any of its Significant Subsidiaries with an aggregate
               principal balance in excess of U.S. $10,000,000, and such failure
               to pay shall not have been remedied or cured by the Company or
               such Significant Subsidiary or waived by the holders of such
               Indebtedness; or

                    (h)  the entry, by a court having jurisdiction over the
               Company or any Significant Subsidiary of the Company of a final
               judgment, decree or order against any of them in an amount in
               excess of U.S. $2,000,000 at any one time and that is not
               satisfied, stayed, bonded or discharged within 60 days.

               Notwithstanding the 60-day period and notice requirement
contained in Section 6.1(d) above, with respect to a default under Section 3(d)
of the Securities the 60-day period referred to in Section 6.1(d) shall be
deemed to have begun as of the date the Change of Control notice is required to
be sent in the event that the Company has not complied with the provisions of
Section 3 of the Securities and the Trustee or Holders of at least 25% in
principal amount of the outstanding Securities thereafter give the Notice of
Default referred to in Section 6.1(d) to the Company and, if applicable, the
Trustee.

SECTION 6.2.   Acceleration of Maturity Date; Rescission and Annulment.

               If an Event of Default occurs and is continuing, then within five
Business Days after the Company becomes aware of such Event of Default the
Company will provide written notice to the Trustee describing such Event of
Default and the date on which it occurred.  The Trustee will give notice of such
Event of Default to the Holders of the Securities within 90 days after its
receipt of written notice thereof from the Company.  If an Event of Default
occurs and is continuing, unless the principal of all of the Securities shall
have already become due and payable, either the Trustee or the Holders of not
less than 25% in aggregate principal amount of then outstanding Securities, by a
notice in writing to the Company (and to the Trustee if given by Holders) (an
"Acceleration Notice"), may declare all of the principal of the Securities,
including in each case accrued interest thereon and Additional Amounts, if any,
with respect thereto, to be due and payable immediately.  If an Event of Default
specified in Section 6.1(e) or (f) relating to the Company or any Significant
Subsidiary occurs, all principal, accrued interest thereon and Additional
Amounts, if any, with respect thereto will be immediately due and payable on all
outstanding Securities without any declaration or other act on the part of the
Trustee or the Holders.

                                     -31-
<PAGE>
 
               At any time after such a declaration of acceleration has been
made and before a judgment or decree for payment of the money due has been
obtained by the Trustee as hereinafter provided in this Article VI, the Holders
of not less than a majority in aggregate principal amount of then outstanding
Securities, by written notice to the Company and the Trustee, may rescind, on
behalf of all Holders, any such declaration of acceleration if:

               (a)  the Company has paid or deposited with the Trustee Cash
                    sufficient to pay:

                    (1)  all overdue interest on, and Additional Amounts, if
                         any, with respect to, all Securities;

                    (2)  the principal of (and premium, if any, applicable to)
                         any Securities which would then be due otherwise than
                         by such declaration of acceleration, and interest
                         thereon at the rate borne by the Securities;

                    (3)  to the extent that payment of such interest is lawful,
                         interest upon overdue interest and Additional Amounts,
                         if any, at the rate borne by the Securities; and

                    (4)  all sums paid or advanced by the Trustee hereunder and
                         the compensation, expenses, disbursements and advances
                         of the Trustee, its agents and counsel; and

               (b)  all Events of Default, other than the non-payment of the
                    principal of, premium, if any, interest on and Additional
                    Amounts, if any, with respect to Securities that have become
                    due solely by such declaration of acceleration, have been
                    cured or waived as provided in Section 6.12 hereof,
                    including, if applicable, any Event of Default relating to
                    the covenants contained in Section 3(d) of the Registered
                    Securities and the Bearer Securities.

               Notwithstanding the previous sentence of this Section 6.2, no
waiver shall be effective against any Holder for any Event of Default or Default
with respect to any covenant or provision which cannot be modified or amended
without the consent of the Holder of each outstanding Security affected thereby,
unless all such affected Holders agree, in writing, to waive such Event of
Default or other event. No such waiver shall cure or waive any subsequent
Default or Event of Default or impair any right consequent thereon.

SECTION 6.3.   Collection of Indebtedness and Suits for Enforcement by Trustee.

               The Company covenants that if an Event of Default in payment of
principal, premium, interest or Additional Amounts specified in Section 6.1(a)
or (b) occurs and is continuing, the Company shall, upon demand of the Trustee,
pay to it, for the benefit of the Holders of such Securities, the whole amount
then due and payable on such Securities for principal, premium (if any),
interest, Additional Amounts and, to the extent that payment of such interest
shall be legally enforceable, interest on any overdue principal (and premium, if
any), Additional Amounts and on any overdue interest, at the rate borne by the
Securities, and, in addition thereto, such further amount as shall be sufficient
to cover the costs and expenses of collection, including compensation to, and
expenses, disbursements and advances of, the Trustee, its agents and counsel.

               If the Company fails to pay such amounts forthwith upon such
demand, the Trustee, in its own name and as trustee of an express trust in favor
of the Holders, may institute a judicial proceeding for the collection of the
sums so due and unpaid, may prosecute such proceeding to judgment or final
decree and

                                     -32-
<PAGE>
 
may enforce the same against the Company or any other obligor upon the
Securities and collect the moneys adjudged or decreed to be payable in the
manner provided by law out of the property of the Company or any other obligor
upon the Securities, wherever situated.

               If an Event of Default occurs and is continuing, the Trustee may
in its discretion proceed to protect and enforce its rights and the rights of
the Holders by such appropriate judicial proceedings as the Trustee shall deem
most effective to protect and enforce any such rights, whether for the specific
enforcement of any covenant or agreement in this Indenture or in aid of the
exercise of any power granted herein, or to enforce any other proper remedy.

SECTION 6.4.   Trustee May File Proofs of Claim.

               In case of the pendency of any receivership, insolvency,
liquidation, bankruptcy, reorganization, arrangement, adjustment, composition or
other judicial proceeding relative to the Company or any other obligor upon the
Securities or the property of the Company or of such other obligor or their
creditors, the Trustee (irrespective of whether the principal of the Securities
shall then be due and payable as therein expressed or by declaration or
otherwise and irrespective of whether the Trustee shall have made any demand on
the Company for the payment of overdue principal, interest or Additional
Amounts) shall be entitled and empowered, by intervention in such proceeding or
otherwise to take any and all actions under the TIA, including:

               (1)  to file and prove a claim for the whole amount of principal
(and premium, if any), interest and Additional Amounts owing and unpaid in
respect of the Securities and to file such other papers or documents as may be
necessary or advisable in order to have the claims of the Trustee (including any
claim for the reasonable compensation, expenses, disbursements and advances of
the Trustee, its agent and counsel) and of the Holders allowed in such judicial
proceeding, and

               (2)  to collect and receive any moneys or other property payable
or deliverable on any such claims and to distribute the same; and any custodian,
receiver, assignee, trustee, liquidator, sequestrator or other similar official
in any such judicial proceeding is hereby authorized by each Holder to make such
payments to the Trustee and, in the event that the Trustee shall consent to the
making of such payments directly to the Holders, to pay to the Trustee any
amount due it for the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel, and any other amounts due the
Trustee under Section 7.7 hereof.

               Nothing herein contained shall be deemed to authorize the Trustee
to authorize or consent to or accept or adopt on behalf of any Holder any plan
of reorganization, arrangement, adjustment, or composition affecting the
Securities or the rights of any Holder thereof or to authorize the Trustee to
vote in respect of the claim of any Holder in any such proceeding.

SECTION 6.5.   Trustee May Enforce Claims Without Possession of Securities.

               All rights of action and claims under this Indenture or the
Securities may be prosecuted and enforced by the Trustee without the possession
of any of the Securities or the production thereof in any proceeding relating
thereto, and any such proceeding instituted by the Trustee shall be brought in
its own name as trustee of an express trust in favor of the Holders, and any
recovery of judgment shall, after provision for the payment of compensation to,
and expenses, disbursements and advances of the Trustee, its agents and counsel,
be for the ratable benefit of the Holders of the Securities in respect of which
such judgment has been recovered.

                                     -33-
<PAGE>
 
SECTION 6.6.   Priorities.

               Any money collected by the Trustee pursuant to this Article VI
shall be applied in the following order, at the date or dates fixed by the
Trustee and, in case of the distribution of such money on account of principal,
premium (if any), interest or Additional Amounts, upon presentation of the
Securities and the notation thereon of the payment if only partially paid and
upon surrender thereof if fully paid:

               FIRST:  To the Trustee in payment of all amounts due pursuant to
Section 7.7 hereof;

               SECOND:  To the holders of Senior Indebtedness of the Company to
the extent provided in Article XII hereof;

               THIRD:  To the Holders in payment of the amounts then due and
unpaid for principal of, premium (if any), interest on and Additional Amounts
with respect to, the Securities in respect or for the benefit of which such
money has been collected, ratably, without preference or priority of any kind,
according to the amounts due and payable on such Securities for principal,
premium (if any), interest and Additional Amounts, respectively; and

               FOURTH:  To whosoever may be lawfully entitled thereto, the
remainder, if any.

               The Trustee may fix a record date and payment date for any
payment by it to Holders pursuant to this Section.

SECTION 6.7.   Limitation on Suits.

               No Holder of any Security shall have any right to order or direct
the Trustee to institute any proceeding, judicial or otherwise, with respect to
this Indenture, or for the appointment of a receiver or trustee, or for any
other remedy hereunder, unless: (a) such Holder has previously given written
notice to the Trustee of a continuing Event of Default; (b) the Holders of not
less than 25% in principal amount of then outstanding Securities shall have made
written request to the Trustee to institute proceedings in respect of such Event
of Default in its own name as Trustee hereunder; (c) such Holder or Holders have
offered to the Trustee reasonable security or indemnity against the costs,
expenses and liabilities to be incurred or reasonably probable to be incurred in
compliance with such request; (d) the Trustee for 60 days after its receipt of
such notice, request and offer of indemnity has failed to institute any such
proceeding; and (e) no direction inconsistent with such written request has been
given to the Trustee during such 60-day period by the Holders of a majority in
principal amount of then outstanding Securities; it being understood and
intended that no one or more Holders shall have any right in any manner whatever
by virtue of, or by availing of, any provision of this Indenture to affect,
disturb or prejudice the rights of any other Holders, or to obtain or to seek to
obtain priority or preference over any other Holders or to enforce any right
under this Indenture, except in the manner herein provided and for the equal and
ratable benefit of all the Holders.

SECTION 6.8.   Unconditional Right of Holders to Receive Principal, Premium,
               Interest and Additional Amounts.

               Notwithstanding any other provision of this Indenture, the Holder
of any Security shall have the right, which is absolute and unconditional, to
receive payment of the principal of, and premium (if any), interest on and
Additional Amounts with respect to, such Security when due (including, in the
case of redemption, the Redemption Price on the applicable Redemption Date) and
to institute suit for the enforcement of any such payment after such respective
dates, and such rights shall not be impaired without the consent of such Holder.

                                     -34-
<PAGE>
 
SECTION 6.9.   Rights and Remedies Cumulative.

               Except as otherwise provided with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities in Section 2.8
hereof, no right or remedy herein conferred upon or reserved to the Trustee or
to the Holders is intended to be exclusive of any other right or remedy, and
every right and remedy shall, to the extent permitted by law, be cumulative and
in addition to every other right and remedy given hereunder or now or hereafter
existing at law or in equity or otherwise.  The assertion or employment of any
right or remedy hereunder, or otherwise, shall not prevent the concurrent
assertion or employment of any other appropriate right or remedy.

SECTION 6.10.  Delay or Omission Not Waiver.

               No delay or omission by the Trustee or by any Holder of any
Security to exercise any right or remedy arising upon any Event of Default shall
impair the exercise of any such right or remedy or constitute a waiver of any
such Event of Default. Every right and remedy given by this Article VI or by law
to the Trustee or to the Holders may be exercised from time to time, and as
often as may be deemed expedient, by the Trustee or by the Holders, as the case
may be.

SECTION 6.11.  Control by Holders.

               The Holder or Holders of no less than a majority in aggregate
principal amount of then outstanding Securities shall have the right to direct
the time, method and place of conducting any proceeding for any remedy available
to the Trustee or exercising any trust or power conferred upon the Trustee,
provided, that (l) such direction shall not be in conflict with any rule of law
or with this Indenture, (2) the Trustee shall not determine that the action so
directed would be unjustly prejudicial to the Holders not taking part in such
direction or would subject the Trustee to any liability, and (3) the Trustee may
take any other action deemed proper by the Trustee which is not inconsistent
with such direction.

SECTION 6.12.  Waiver of Past Default.

               Subject to Section 6.8 hereof, the Holder or Holders of not less
than a majority in aggregate principal amount of the outstanding Securities may,
on behalf of all Holders, prior to the declaration of acceleration of the
maturity of the Securities, waive any past default hereunder and its
consequences, except a default (A) in the payment of the principal of, premium,
if any, interest on, or Additional Amounts with respect to, any Security not yet
cured as specified in Section 6.1(a) or (b), or (B) in respect of a covenant or
provision hereof which, under Article IX hereof, cannot be modified or amended
without the consent of the Holder of each outstanding Security affected.

               Upon any such waiver, such default shall cease to exist, and any
Event of Default arising therefrom shall be deemed to have been cured, for every
purpose of this Indenture; but no such waiver shall extend to any subsequent or
other default or impair the exercise of any right arising therefrom.

SECTION 6.13.  Undertaking for Costs.

               All parties to this Indenture agree, and each Holder of any
Security by his acceptance thereof shall be deemed to have agreed, that any
court may in its discretion require, in any suit for the enforcement of any
right or remedy under this Indenture, or in any suit against the Trustee for any
action taken, suffered or omitted to be taken by it as Trustee, the filing by
any party litigant in such suit of an undertaking to pay the costs of such suit,
and that such court may in its discretion assess reasonable costs, including
reasonable attorneys' fees, against any party litigant in such suit, having due
regard to the merits and good faith of the claims or defenses made by such party
litigant; but the provisions of this Section 6.13 shall not apply to any suit
instituted by the Company, to any suit instituted by the Trustee, to any suit

                                     -35-
<PAGE>
 
instituted by any Holder, or group of Holders, holding in the aggregate more
than 10% in aggregate principal amount of then outstanding Securities, or to any
suit instituted by any Holder for enforcement of the payment of principal of,
premium (if any), interest on or Additional Amounts with respect to, any
Security on or after the Stated Maturity of such Security (including, in the
case of redemption, on or after the Redemption Date).

SECTION 6.14.  Restoration of Rights and Remedies.

               If the Trustee or any Holder has instituted any proceeding to
enforce any right or remedy under this Indenture and such proceeding has been
discontinued or abandoned for any reason, or has been determined adversely to
the Trustee or to such Holder, then and in every case, subject to any
determination in such proceeding, the Company, the Trustee and the Holders shall
be restored severally and respectively to their former positions hereunder and
thereafter all rights and remedies of the Trustee and the Holders shall continue
as though no such proceeding had been instituted.

SECTION 6.15.  Enforcement of Rights of Conversion by Holders.

               Anything in this Indenture to the contrary notwithstanding, the
Holder of any Security, without reference to and without the consent of either
the Trustee or the Holder of any other Security, in his own behalf and for his
own benefit may enforce, and may institute and maintain any proceedings suitable
to enforce, his right to convert his Security into Common Stock as provided in
Article XIII.

                                  ARTICLE VII
                                    TRUSTEE

               The Trustee hereby accepts the trust imposed upon it by this
Indenture and covenants and agrees to perform the same, as herein expressed.

SECTION 7.1.   Duties of Trustee.

               (a)  If an Event of Default has occurred and is continuing, the
Trustee shall exercise such of the rights and powers vested in it by this
Indenture and use the same degree of care and skill in their exercise as a
prudent man would exercise or use under the circumstances in the conduct of his
own affairs.

               (b)  Except during the continuance of an Event of Default:

                    (1)   The Trustee need perform only those duties as are
                          specifically set forth in this Indenture and no
                          others, and no covenants or obligations shall be
                          implied in or read into this Indenture which are
                          adverse to the Trustee.
                     
                    (2)   In the absence of willful misconduct on its part, the
                          Trustee may conclusively rely, as to the truth of the
                          statements and the correctness of the opinions
                          expressed therein, upon certificates or opinions
                          furnished to the Trustee and conforming to the
                          requirements of this Indenture. However, the Trustee
                          shall examine the certificates and opinions to
                          determine whether or not they conform to the
                          requirements of this Indenture.
                     
               (c)  The Trustee may not be relieved from liability for its own
negligent action, its own negligent failure to act, or its own willful
misconduct, except that:

                                     -36-
<PAGE>
 
                    (1)   This paragraph (c) does not limit the effect of
                          paragraph (b) of this Section 7.1.
                          
                    (2)   The Trustee shall not be liable for any error of
                          judgment made in good faith by a Trust Officer, unless
                          it is proved that the Trustee was negligent in
                          ascertaining the pertinent facts.
                          
                    (3)   The Trustee shall not be liable with respect to any
                          action it takes or omits to take in good faith in
                          accordance with a direction received by it pursuant to
                          Section 6.11 hereof.

               (d)  No provision of this Indenture shall require the Trustee to
expend or risk its own funds or otherwise incur any financial liability in the
performance of any of its duties hereunder or to take or omit to take any action
under this Indenture or at the request, order or direction of the Holders or in
the exercise of any of its rights or powers if it shall have reasonable grounds
for believing that repayment of such funds or adequate indemnity against such
risk or liability is not reasonably assured to it.

               (e)  Every provision of this Indenture that in any way relates to
the Trustee is subject to paragraphs (a), (b), (c), (d) and (f) of this Section
7.1.

               (f)  The Trustee shall not be liable for interest on any assets
received by it except as the Trustee may agree in writing with the Company.
Assets held in trust by the Trustee need not be segregated from other assets
except to the extent required by law.

SECTION 7.2.   Rights of Trustee.

               Subject to Section 7.1:

               (a)  The Trustee may rely on any document believed by it to be
genuine and to have been signed or presented by the proper Person. The Trustee
need not investigate any fact or matter stated in the document.

               (b)  Before the Trustee acts or refrains from acting, it may
consult with counsel and may require an Officers' Certificate or an Opinion of
Counsel, which shall conform to Sections 14.4 and 14.5 hereof, if applicable.
The Trustee shall not be liable for any action it takes or omits to take in good
faith in reliance on such certificate or the written advice of counsel.

               (c)  The Trustee may act through its attorneys and agents and
shall not be responsible for the misconduct or negligence of any agent appointed
with due care.

               (d)  The Trustee shall not be liable for any action it takes or
omits to take in good faith which it believes to be authorized or within its
rights or powers conferred upon it by this Indenture.

               (e)  The Trustee shall not be bound to make any investigation
into the facts or matters stated in any resolution, certificate, statement,
instrument, opinion, notice, request, direction, consent, order, bond,
debenture, or other paper or document, but the Trustee, in its discretion, may
make such further inquiry or investigation into such facts or matters as it may
see fit.

               (f)  The Trustee shall be under no obligation to exercise any of
the rights or powers vested in it by this Indenture at the request, order or
direction of any of the Holders, pursuant to the provisions of this Indenture,
unless such Holders shall have offered to the Trustee reasonable security or
indemnity against the costs, expenses and liabilities which may be incurred
therein or thereby.

                                     -37-
<PAGE>
 
               (g)  Unless otherwise specifically provided for in this
Indenture, any demand, request, direction or notice from the Company shall be
sufficient if signed by an Officer of the Company.

               (h)  The Trustee shall have no duty to inquire as to the
performance of the Company's covenants in Article IV hereof. In addition, the
Trustee shall not be deemed to have knowledge of any Default or Event of Default
except (i) any Event of Default occurring pursuant to Section 6.1(a) or (b), or
(ii) any Default or Event of Default of which a Trust Officer of the Trustee
shall have received written notification from the Company or any Holder or
obtained actual knowledge.

SECTION 7.3.   Individual Rights of Trustee.

               The Trustee in its individual or any other capacity may become
the owner or pledgee of Securities and may otherwise deal with the Company, any
of its Subsidiaries, or their respective Affiliates with the same rights it
would have if it were not Trustee. Any Agent may do the same with like rights.
However, the Trustee must comply with Sections 7.10 and 7.11 hereof.

SECTION 7.4.   Trustee's Disclaimer.

               The Trustee makes no representation as to the validity or
adequacy of this Indenture or the Securities and it shall not be accountable for
the Company's use of the proceeds from the Securities, and it shall not be
responsible for any statement in the Securities, other than the Trustee's
certificate of authentication, or the use or application of any funds received
by a Paying Agent other than the Trustee.

SECTION 7.5.   Notice of Default.

               If a Default or an Event of Default occurs and is continuing and
if it is actually known to the Trustee, the Trustee shall give to
Securityholders in accordance with Section 14.2 notice of the uncured Default or
Event of Default within 90 days after such Default or Event of Default occurs.
Except in the case of a Default or an Event of Default in payment of principal
(or premium, if any) of, interest on or Additional Amounts with respect to, any
Security (including the payment of the Redemption Price on the Redemption Date),
the Trustee may withhold the notice if and so long as a Trust Officer in good
faith determines that withholding the notice is in the interest of the
Securityholders.

SECTION 7.6.   Reports by Trustee to Holders.

               Within 60 days after each June 30 beginning with the June 30
following the date of this Indenture, the Trustee shall, if required by Section
313(a) of the TIA, transmit to the Holders a brief report dated as of such June
30 that complies with Section 313(a) of the TIA. The Trustee also shall comply
with Section 313(b) and 313(c) of the TIA. The Company shall promptly notify the
Trustee in writing if the Securities become listed on any stock exchange or
automatic quotation system. A copy of each report at the time of its mailing to
Securityholders shall be mailed to the Company and filed with the Commission and
each stock exchange, if any, on which the Securities are listed. Reports
pursuant to this Section 7.6 shall be transmitted by mail: (1) to all holders of
Registered Securities as the names and addresses of such Holders appear in the
Security Register; and (2) to other Holders of Securities as have, within the
two years preceding such transmission, filed their names and addresses with the
Trustee for such purpose.

                                     -38-
<PAGE>
 
SECTION 7.7.   Compensation and Indemnity.

               The Company agrees to pay to the Trustee from time to time
reasonable compensation for its services. The Trustee's compensation shall not
be limited by any law on compensation of a trustee of an express trust. The
Company shall reimburse the Trustee upon request for all reasonable
disbursements, expenses and advances incurred or made by it. Such expenses shall
include the reasonable compensation, disbursements and expenses of the Trustee's
agents, accountants, experts and counsel.

               The Company agrees to indemnify the Trustee, the Paying Agent,
the Conversion Agent and the Registrar (each an "Indemnified Party") and each of
their respective officers, directors, attorneys-in-fact and agents for, and hold
the Indemnified Party harmless against, any claim, demand, expense (including
but not limited to reasonable compensation, disbursements and expenses of any
Indemnified Party's agents and counsel), loss or liability incurred by any
Indemnified Party without negligence or willful misconduct on its part, arising
out of or in connection with the administration of this trust and its rights or
duties hereunder including the reasonable costs and expenses incurred by any
Indemnified Party defending itself against any claim or liability in connection
with the exercise or performance of any of its powers or duties hereunder. Each
Indemnified Party shall notify the Company promptly of any claim asserted
against it for which it may seek indemnity. The Company shall defend the claim
and the Indemnified Party shall provide reasonable cooperation at the Company's
expense in the defense. The Indemnified Party may have separate counsel and the
Company shall pay the reasonable fees and expenses of such counsel; provided,
that the Company will not be required to pay such fees and expenses if it
assumes the Indemnified Party's defense and in the Indemnified Party's sole
reasonable determination there is no conflict of interest between the Company
and the Indemnified Party in connection with such defense. The Company need not
pay for any settlement made without its written consent. The Company need not
reimburse any expense or indemnify against any loss or liability to the extent
incurred by the Indemnified Party through its negligence, bad faith or willful
misconduct.

               To secure the Company's payment obligations in this Section 7.7,
the Trustee shall have a lien prior to the Securities on all assets held or
collected by the Trustee, in its capacity as Trustee, except assets held in
trust prior to any Event of Default to pay principal and premium, if any, of or
interest on, or Additional Amounts with respect to, particular Securities.
Without limiting any of the rights available to the Trustee under applicable
law, when the Trustee incurs expenses or renders services after an Event of
Default specified in Section 6.1(e) or (f) hereof occurs, the expenses and the
compensation for the services are intended to constitute expenses of
administration under any Bankruptcy Law.

               The Company's obligations under this Section 7.7 and any lien
arising hereunder shall survive the resignation or removal of the Trustee, the
discharge of the Company's obligations pursuant to Article VIII of this
Indenture and any rejection or termination of this Indenture under any
Bankruptcy Law.

SECTION 7.8.   Replacement of Trustee.

               The Trustee may resign by so notifying the Company in writing.
The Holder or Holders of a majority in principal amount of then outstanding
Securities may remove the Trustee by so notifying the Company and the Trustee in
writing and may appoint a successor trustee with the Company's consent. The
Company may remove the Trustee if:

               (a)  the Trustee fails to comply with Section 7.10 hereof;

               (b)  the Trustee is adjudged bankrupt or insolvent;

               (c)  a receiver, custodian, or other public officer takes charge
of the Trustee or its property; or

                                     -39-
<PAGE>
 
               (d)  the Trustee becomes incapable of acting.

               If the Trustee resigns or is removed or if a vacancy exists in
the office of Trustee for any reason, the Company shall promptly appoint a
successor Trustee. Within one year after the successor Trustee takes office, the
Holder or Holders of a majority in principal amount of then outstanding
Securities may appoint a successor Trustee to replace the successor Trustee
appointed by the Company.

               A successor Trustee shall deliver a written acceptance of its
appointment to the retiring Trustee and to the Company. Immediately after that
and provided that all sums owing to the retiring Trustee provided for in Section
7.7 have been paid, the retiring Trustee shall transfer all property held by it
as trustee to the successor Trustee, subject to the lien provided in Section
7.7, the resignation or removal of the retiring Trustee shall become effective,
and the successor Trustee shall have all the rights, powers and duties of the
Trustee under this Indenture, a successor Trustee shall mail notice of its
succession to each Holder.

               If a successor Trustee does not take office within 60 days after
the retiring Trustee resigns or is removed, the retiring Trustee, the Company or
the Holder or Holders of at least 10% in principal amount of then outstanding
Securities may petition any court of competent jurisdiction for the appointment
of a successor Trustee.

               If the Trustee fails to comply with Section 7.10, any
Securityholder who has been a bona fide holder of a Security for at least 6
months may petition any court of competent jurisdiction for the removal of the
Trustee and the appointment of a successor Trustee.

               Notwithstanding replacement of the Trustee pursuant to this
Section 7.8, the Company's obligations under Section 7.7 hereof shall continue
for the benefit of the retiring Trustee.

SECTION 7.9.   Successor Trustee by Merger, Etc.

               If the Trustee consolidates with, merges or converts into, or
transfers all or substantially all of its corporate trust business to, another
corporation, the resulting, surviving or transferee corporation without any
further act shall, if such resulting, surviving or transferee corporation is
otherwise eligible hereunder, be the successor Trustee.

SECTION 7.10.  Eligibility; Disqualification.

               The Trustee shall at all times satisfy the requirements of
Section 310(a)(1), (2) and (5) of the TIA. The Trustee shall have a combined
capital and surplus of at least $100,000,000 as set forth in its most recent
published annual report of condition. The Trustee shall comply with Section
310(b) of the TIA, subject to the penultimate paragraph thereof.

SECTION 7.11.  Preferential Collection of Claims Against Company.

               The Trustee shall comply with Section 311(a) of the TIA,
excluding any creditor relationship listed in Section 311(b) of the TIA. A
Trustee who has resigned or been removed shall be subject to Section 311(a) of
the TIA to the extent indicated.

                                     -40-
<PAGE>
 
                                 ARTICLE VIII
                          SATISFACTION AND DISCHARGE

SECTION 8.1.   Satisfaction and Discharge of Indenture.

               If (a) the Company shall deliver to the Trustee for cancellation
all Securities theretofore authenticated other than (1) any Securities which
shall have been lost, destroyed or wrongfully taken and which shall have been
replaced or paid as provided in Section 2.8 or (2) any Securities for the
payment of the principal of which money has theretofore been deposited in trust
or segregated and held in trust by the Company and thereafter repaid to the
Company or discharged from such trust, as provided in Section 8.2, and not
theretofore canceled, or (b) all the Securities not theretofore canceled or
delivered to the Trustee for cancellation shall have become due and payable, or
are by their terms to become due and payable within one year or are to be called
for redemption within one year under arrangements satisfactory to the Trustee
for the giving of notice of redemption, and the Company shall deposit with the
Trustee, in trust, funds (other than funds repaid by the Trustee to the Company
in accordance with Section 8.2) sufficient to pay at maturity or upon redemption
all of such Securities (other than any Securities which shall have been lost,
destroyed or wrongfully taken and which shall have been replaced or paid as
provided in Section 2.8) not theretofore canceled or delivered to the Trustee
for cancellation, including principal of and premium, if any, and interest due
or to become due to such date of maturity or date fixed for redemption, as the
case may be, and if in either case the Company shall also pay or cause to be
paid all other sums payable hereunder by the Company, then this Indenture shall
cease to be of further effect (except as to rights of registration of transfer
and exchange of Securities and rights to receive payments thereon and the other
rights of the holders of Securities, as beneficiaries hereof with respect to the
amounts, if any, so deposited with the Trustee, all of which shall survive, and
except that the Company's obligations under this Article, Sections 6.15 and 7.7
and Article XIII shall survive until the Securities are no longer outstanding),
and the Trustee, on demand of the Company accompanied by an Officers'
Certificate and an Opinion of Counsel complying with Sections 14.4 and 14.5 and
at the cost and expense of the Company, shall execute proper instruments
acknowledging satisfaction of and discharging this Indenture; the Company,
however, hereby agreeing to reimburse the Trustee for any costs or expenses
theretofore and thereafter reasonably and properly incurred by the Trustee in
connection with this Indenture or the Securities.

SECTION 8.2.   Repayment to the Company.

               Any money deposited with the Trustee or any Paying Agent, or then
held by the Company, for the payment of the principal of, premium, if any,
interest on or Additional Amounts with respect to any Security and remaining
unclaimed for two years after such principal, premium, if any, interest or
Additional Amounts has become due and payable shall be paid to the Company; and
the Holder of such Security shall thereafter look only to the Company for
payment thereof, and all liability of the Trustee or such Paying Agent with
respect to such trust money shall thereupon cease.


                                  ARTICLE IX
                      AMENDMENTS, SUPPLEMENTS AND WAIVERS

SECTION 9.1.   Supplemental Indentures Without Consent of Holders.

               Without the consent of any Holder, the Company, when authorized
by Board Resolutions, and the Trustee, at any time and from time to time, may
enter into one or more indentures supplemental hereto, in form satisfactory to
the Trustee, for any of the following purposes: (1) to cure any ambiguity,
defect, or inconsistency, or to make any other provisions with respect to
matters or questions arising under this Indenture which shall not be
inconsistent with the provisions of this Indenture, provided, that the Company
has delivered to the Trustee an Opinion of Counsel stating that such action
pursuant to this clause (1) does not adversely affect the interests of any
Holder; (2) to create additional covenants of the Company 

                                     -41-
<PAGE>
 
for the benefit of the Holders, or to surrender any right or power herein
conferred upon the Company or to make any other change that does not adversely
affect the rights of any Holder, provided, that the Company has delivered to the
Trustee an Opinion of Counsel stating that such change pursuant to this clause
(2) does not adversely affect the rights of any Holder; (3) to provide for
collateral for or guarantors of the Securities; (4) to evidence the succession
of another Person to the Company and the assumption by any such successor of the
obligations of the Company herein and in the Securities in accordance with
Article V; (5) to comply with the TIA; or (6) to comply with Section 13.6.

SECTION 9.2.   Amendments, Supplemental Indentures and Waivers with Consent of
               Holders.

               Subject to Section 6.8 and the last sentence of this paragraph,
with the consent (evidenced as provided in Section 10.2 hereof) of the Holders
of not less than a majority in aggregate principal amount of then outstanding
Securities, by written act of said Holders delivered to the Company and the
Trustee, the Company, when authorized by Board Resolutions, and the Trustee may
amend or supplement this Indenture or the Securities or enter into an indenture
or indentures supplemental hereto for the purpose of adding any provisions to or
changing in any manner or eliminating any of the provisions of this Indenture or
the securities or of modifying in any manner the rights of the Holders under
this Indenture or the Securities. Subject to Section 6.8 and the last sentence
of this paragraph, the Holder or Holders of not less than a majority in
aggregate principal amount of then outstanding Securities may, in writing, waive
compliance by the Company with any provision of this Indenture or the
Securities. Notwithstanding any of the above, however, no such amendment,
supplemental indenture or waiver shall, without the consent of the Holder of
each outstanding Security affected thereby: (1) change the Stated Maturity of
any Security or reduce the principal amount thereof or the rate (or extend the
time for payment) of interest thereon or any premium payable upon the redemption
thereof or Additional Amounts with respect thereto, or change the place of
payment where, or the coin or currency in which, any Security or any premium or
the interest thereon or Additional Amounts with respect thereto is payable, or
impair the right to institute suit for the enforcement of any such payment or
the conversion of any Security on or after the due date thereof (including, in
the case of redemption, on or after the Redemption Date), or reduce the
Redemption Price, or alter redemption or Change in Control provisions in a
manner adverse to the Holders; (2) reduce the percentage in principal amount of
the outstanding Securities, the consent of whose Holders is required for any
such amendment, supplemental indenture or waiver provided for in the Indenture;
(3) modify any of the provisions of Article XII hereof in a manner adverse to
the Holders; (4) adversely affect the right of such Holder to convert
Securities; or (5) modify any of the waiver provisions, except to increase any
required percentage or to provide that certain other provisions of the Indenture
cannot be modified or waived without the consent of the Holder of each
outstanding Security affected thereby.

               It shall not be necessary for the consent of the Holders under
this Section 9.2 to approve the particular form of any proposed amendment,
supplement or waiver, but it shall be sufficient if such consent approves the
substance thereof.

               After an amendment, supplement or waiver under this Section 9.2
becomes effective, the Company shall give to the Holders in accordance with
Section 14.2 a notice briefly describing the amendment, supplement or waiver.
Any failure of the Company to mail such notice, or any defect therein, shall
not, however, in any way impair or affect the validity of any such supplemental
indenture or waiver. After an amendment, supplement or waiver under this Section
9.2 becomes effective, it shall bind each Holder. In connection with any
amendment, supplement or waiver under this Article IX, the Company may, but
shall not be obligated to, offer to any Holder who consents to such amendment,
supplement or waiver, or (at the option of the Company) to all Holders,
consideration for consent to such amendment, supplement or waiver.

                                     -42-
<PAGE>
 
SECTION 9.3.   Compliance with TIA.

               Every amendment, waiver or supplement of this Indenture or the
Securities shall comply with the TIA as then in effect.

SECTION 9.4.   Revocation and Effect of Consents.

               Until an amendment, waiver or supplement becomes effective, a
consent to it by a Holder is a continuing consent by the Holder and every
subsequent Holder of a Security or portion of a Security that evidences the same
debt as the consenting Holder's Security, even if notation of the consent is not
made on any Security. However, any such Holder or subsequent Holder may revoke
the consent as to his Security or portion of his Security by written notice to
the Company or the Person designated by the Company as the Person to whom
consents should be sent if such revocation is received by the Company or such
Person before the date on which the Trustee receives an Officers' Certificate
certifying that the Holders of the requisite principal amount of Securities have
consented (and not theretofore revoked such consent) to the amendment,
supplement or waiver. The Company may, but shall not be obligated to, fix a
record date for the purpose of determining the Holders entitled to consent to
any amendment, supplement or waiver, which record date shall be the date so
fixed by the Company notwithstanding the provisions of the TIA. If a record date
is fixed, then notwithstanding the last sentence of the immediately preceding
paragraph, those Persons who were Holders at such record date, and only those
Persons (or their duly designated proxies), shall be entitled to revoke any
consent previously given, whether or not such Persons continue to be Holders
after such record date. No such consent shall be valid or effective for more
than 90 days after such record date.

               After an amendment, supplement or waiver becomes effective, it
shall bind every Securityholder; provided, that any such waiver shall not impair
or affect the right of any Holder to receive payment of principal and premium of
and interest on and Additional Amounts with respect to a Security, on or after
the respective dates set for such amounts to become due and payable expressed in
such Security, or to bring suit for the enforcement of any such payment on or
after such respective dates without the consent of such Holder.

SECTION 9.5.   Notation on or Exchange of Securities.

               If an amendment, supplement or waiver changes the terms of a
Security, the Company may require the Holder of the Security to deliver it to
the Trustee or require the Holder to put an appropriate notation on the
Security. The Trustee may place an appropriate notation on the Security about
the changed terms and return it to the Holder. Alternatively, if the Company or
the Trustee so determines, the Company in exchange for the Security shall issue
and the Trustee shall authenticate a new Security that reflects the changed
terms. Any failure or error in making the appropriate notation or to issue a new
Security shall not affect the validity of such amendment, supplement or waiver.

SECTION 9.6.   Trustee to Sign Amendments, Etc.

               The Trustee may, but shall not be obligated to, execute any such
amendment, supplement or waiver which affects the Trustee's own rights, duties
or immunities under this Indenture or otherwise. The Trustee shall be entitled
to receive, and shall be fully protected in relying upon, an Opinion of Counsel
stating that the execution of any amendment, supplement or waiver authorized
pursuant to this Article IX is authorized or permitted by this Indenture.

                                   ARTICLE X
                                   MEETINGS

                                     -43-
<PAGE>
 
SECTION 10.1.  Meetings and Votes of Holders.

               (a)  A meeting of Holders of Securities may be called at any time
and from time to time pursuant to this Section 10.1 for any of the following
purposes: (i) to give any notice to the Company or to the Trustee, or to give
any directions to the Trustee, or to consent to the waiving of any Default
hereunder and its consequences, or to take any other action authorized to be
taken by Holders of Securities pursuant to Article IX hereof; or (ii) to take
any other action authorized to be taken by or on behalf of the Holders of any
specified aggregate principal amount of the Securities under any other provision
of this Indenture, the Registered Securities and Bearer Securities or under
applicable law.

               (b)  Meetings of Holders of Securities may be held at such place
or places in The City of New York or London as the Trustee or, in case of its
failure to act, the Company or the Holders calling the meeting shall from time
to time determine.

               (c)  The Trustee may at any time call a meeting of Holders of
Securities to be held at such time and at such place in any of the locations
designated in Section 10.1(b) hereof as the Trustee shall determine. Notice of
every meeting of Holders shall be made as specified in Section 14.2 hereof,
except that such notice shall set forth the time and the place of such meeting,
in general terms the action proposed to be taken at such meeting and a general
description of regulations applicable to such meeting and shall be published at
least three times in the publications specified in such Section 14.2, the first
publication to be not less than 21 nor more than 180 days prior to the date
fixed for the meeting.

               (d)  In case at any time the Company or the Holders of at least
25% in aggregate principal amount of the Securities shall have requested the
Trustee to call a meeting of the Holders, by written request setting forth in
reasonable detail the action proposed to be taken at the meeting, and the
Trustee shall not have given the first notice of such meeting within 21 days
after receipt of such request or shall not thereafter proceed to cause the
meeting to be held as provided herein, then the Company or the Holders of
Securities in the amount above specified may determine the time and the place in
either of the locations designated in Section 10.1(b) hereof for such meeting
and may call such meeting to take any action authorized in Section 10.1(a)
hereof by giving notice thereof as provided in Section 10.1(c) hereof.

               (e)  To be entitled to vote at any meeting of Holders of
Securities, a person shall be (i) a Holder of one or more Securities, or (ii) a
person appointed by an instrument in writing as proxy for a Holder or Holders of
Securities by such Holder or Holders, which proxy need not be a Holder of
Securities. The only persons who shall be entitled to be present or to speak at
any meeting of Holders shall be the persons entitled to vote at such meeting and
their counsel and any representatives of the Trustee and its counsel and any
representatives of the Company and its counsel.

               (f)  The persons entitled to vote a majority in principal amount
of the outstanding Securities shall constitute a quorum for the transaction of
all business specified in Section 10.1(a) hereof. No business shall be
transacted in the absence of a quorum unless a quorum is represented when the
meeting is called to order. In the absence of a quorum within 30 minutes of the
time appointed for any such meeting, the meeting shall, if convened at the
request of the Holders of Securities (as provided in Section 10.1(d) hereof), be
dissolved. In any other case the meeting shall be adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior to the
adjournment of such adjourned meeting. Notice of the reconvening of any
adjourned meeting (except pursuant to Section 10.1(j)) shall be given as
provided in Section 10.1(c) hereof except that such notice need be published
only once but must be given not less than five days prior to the date on which
the meeting is scheduled to be reconvened. Subject to the foregoing, at the
reconvening of any meeting adjourned for a lack of a quorum the persons entitled
to vote 25% in principal amount of the Securities shall constitute a quorum for
the taking of any action set forth in the notice of the original meeting. Notice
of the reconvening of an adjourned meeting shall state expressly the percentage
of the aggregate principal amount of the Securities that shall constitute a
quorum. At a 

                                     -44-
<PAGE>
 
meeting or an adjourned meeting duly reconvened and at which a quorum is present
as aforesaid, any resolution and all matters (except as limited by Section 6.8
and the last sentence of the first paragraph of Section 9.2 hereof) shall be
effectively passed and decided if passed or decided by the persons entitled to
vote a majority in principal amount of the Securities represented and voting at
such meeting, provided that such amount shall be not less than 25% in principal
amount of the Securities outstanding. Any Holder of a Security who has executed
an instrument in writing appointing a person as his proxy shall be deemed to be
present for the purposes of determining a quorum and be deemed to have voted;
provided, however, that such Holder shall be considered as present or voting
only with respect to the matters covered by such instrument in writing. Any
resolution passed or decision taken at any meeting of the Holders of Securities
duly held in accordance with this Section 10.1 shall be binding on all the
Holders of Securities whether or not present or represented at the meeting.

               (g)  Notwithstanding any other provision of this Indenture, the
Trustee may make such reasonable regulations as it may deem advisable for any
meeting of Holders of Securities in regard to proof of the holding of Securities
and of the appointment of proxies and in regard to the appointment and duties of
inspectors of votes, the submission and examination of proxies, certificates and
other evidence of the right to vote, and such other matters concerning the
conduct of the meeting as it shall deem appropriate. Except as otherwise
permitted or required by any such regulations, the holding of Bearer Securities
shall be proved by the production of the Bearer Securities or by a certificate
executed, as depositary, by, and the appointment of any proxy shall be proved by
having the signature of the person executing the proxy witnessed or guaranteed
by, in each case, any trust company, bank or banker satisfactory to the Trustee.
Such regulations may provide that written instruments appointing proxies,
regular on their face, may be presumed valid and genuine without the proof
specified herein or other proof. The holding of Registered Securities shall be
proved by the registry books maintained in accordance with Section 2.3 hereof or
by a certificate or certificates of the Trustee in its capacity as the Company's
agent for the maintenance of such books.

               (h)  The Trustee shall, by an instrument in writing, appoint a
temporary chairman of the meeting, unless the meeting shall have been called by
the Company or by the Holders of Securities as provided in Section 10.1(d)
hereof, in which case the Company or the Holders calling the meeting, as the
case may be, shall in like manner appoint a temporary chairman. A permanent
chairman and a permanent secretary of the meeting shall be elected by vote of
the Holders of a majority in principal amount of the Securities represented at
the meeting and entitled to vote.

               (i)  At any meeting each Holder or proxy shall be entitled to one
vote for each U.S.$1,000 principal amount of Securities held or represented by
him; provided, however, that no vote shall be cast or counted at any meeting in
respect of any Securities challenged as not outstanding and ruled by the
chairman of the meeting to be not outstanding. The chairman of the meeting shall
have no right to vote, except as a Holder or proxy.

               (j)  Any meeting of Holders of Securities duly called pursuant to
Section 10.1(c) or 10.1(d) hereof at which a quorum is present may be adjourned
from time to time by vote of the Holders (or proxies for the Holders) of a
majority in principal amount of the Securities represented at the meeting and
entitled to vote; and the meeting may be held as so adjourned without further
notice.

               (k)  The vote upon any resolution submitted to any meeting of
Holders of Securities shall be by written ballots on which shall be subscribed
the signatures of the Holders of Securities or of their representatives by proxy
and the serial number or numbers of the Securities held or represented by them.
The permanent chairman of the meeting shall appoint two inspectors of votes who
shall count all votes cast at the meeting for or against any resolution and who
shall make and file with the secretary of the meeting their verified written
reports in duplicate of all votes cast at the meeting. A record, at least in
duplicate, of the proceedings of each meeting of Holders of Securities shall be
prepared by the secretary of the meeting

                                     -45-
<PAGE>
 
and there shall be attached to said record the original reports of the
inspectors of votes on any vote by ballot taken thereat and affidavits by one or
more persons having knowledge of the facts setting forth a copy of the notice of
the meeting and showing that said notice was published as provided in Section
10.1(c) or 10.1(d) hereof and, if applicable, Section 10.1(f) hereof. Each copy
shall be signed and verified by the affidavits of the permanent chairman and
secretary of the meeting, and one such copy shall be delivered to the Company
and another to the Trustee to be preserved by the Trustee, the copy delivered to
the Trustee to have attached thereto the ballots voted at the meeting. Any
record so signed and verified shall be conclusive evidence of the matters
therein stated.

SECTION 10.2.  Action by Holders.

               Subject to Section 14.6, whenever in this Indenture it is
provided that the Holders of a specified percentage in aggregate principal
amount of the Securities may take any action (including the making of any demand
or request, the giving of any notice, consent or waiver or the taking of any
other action) the fact that at the time of taking any such action the Holders of
such specified percentage have joined therein may be evidenced (a) by any
instrument or any number of instruments of similar tenor executed by Holders in
person or by agent or proxy appointed in writing, or (b) by the record of
Holders voting in favor thereof at any meeting of such Holders duly called and
held in accordance with the provisions of Section 10.1 hereof, or (c) by a
combination of such instrument or instruments and any such record of such a
meeting of Holders.


                                  ARTICLE XI
                                    AGENTS

SECTION 11.1.  Offices, Resignation, Successors, Etc. of Agents; Paying,
               Conversion and Transfer Agencies.

               (a)  Each of the Agents may at any time resign as such Agent by
giving written notice to the Company of such intention on its part, specifying
the date on which its desired resignation shall become effective; provided,
however, that such date shall never be less than 90 days after receipt of such
notice by the Company unless the Company agrees to accept less notice. Each of
the Agents hereunder may be removed at any time by the filing with it of any
instrument in writing signed on behalf of the Company and specifying such
removal and the date when it is intended to become effective. Such resignation
or removal shall take effect upon the date of the appointment by the Company, as
hereinafter provided, of a successor Conversion Agent, Transfer Agent or Paying
Agent, as the case may be, and the acceptance of such appointment by such
successor Agent. Upon its resignation or removal, each of the Agents shall be
entitled to the payment by the Company of its compensation for the services
rendered hereunder and to the reimbursement of all reasonable out-of-pocket
expenses incurred in connection with the services rendered hereunder by such
Agent.

               (b)  In case at any time any of the Agents shall resign, or shall
be removed, or shall be incapable of acting, or shall file a voluntary petition
as a debtor under Chapter 7 or 11 of Title 11 of the United States Code or have
an order for relief entered against it as a debtor under Chapter 7 or 11 of
Title 11 of the United States Code or make an assignment for the benefit of its
creditors or consent to the appointment of a receiver of all or any substantial
part of its property, or shall admit in writing its inability to pay or meet its
debts as they mature, or if an order of any court shall be entered approving any
petition filed by or against any of the Agents under any legislation similar to
the provisions of Title 11 of the United States Code, or if a receiver of it or
of all or any substantial part of its property shall be appointed, or if any
public officer shall take charge or control of it or of its property or affairs,
for the purpose of rehabilitation, conservation or liquidation, a successor
Agent, qualified as aforesaid, shall be appointed by the Company by an
instrument in writing. Upon the appointment as aforesaid of a successor Agent
and acceptance by it of such appointment, the Agent so superseded shall cease to
be such Agent hereunder. If no successor Agent shall have been so appointed by
the Company and shall have accepted appointment as hereinafter provided,

                                     -46-
<PAGE>
 
any Holder of a Security, on behalf of itself and all others similarly situated,
or any Agent may petition any court of competent jurisdiction for the
appointment of a successor Agent and shall promptly notify the Company of such
action.

               (c)  Any successor Conversion Agent, Transfer Agent or Paying
Agent appointed hereunder shall execute, acknowledge and deliver to its
predecessor and to the Company an instrument accepting such appointment
hereunder, and thereupon such successor Agent, without any further act, deed or
conveyance, shall become vested with all the authority, rights, powers, trusts,
immunities, duties and obligations of such predecessor with like effect as if
originally named as such Agent hereunder, and such predecessor, upon payment of
its charges and disbursements then unpaid, shall thereupon become obligated to
transfer, deliver and pay over, and such successor Agent shall be entitled to
receive, all monies, securities or other property on deposit with or held by
such predecessor, as such Agent hereunder and any such predecessor removed
pursuant to the second sentence of Section 11.1(a) shall be entitled to
repayment of all costs associated with the transfer and delivery thereof.

               (d)  Any corporation or bank into which any of the Agents
hereunder may be merged or converted, or any corporation or bank with which such
Agent may be consolidated, or any corporation or bank resulting from any merger,
conversion or consolidation to which such Agent shall be a party, or any
corporation or bank to which such Agent shall sell or otherwise transfer all or
substantially all the corporate trust assets and business of such Agent, shall
be the successor to such Agent under this Indenture without the execution or
filing of any document or any further act on the part of any of the parties
hereto.


                                  ARTICLE XII
                                 SUBORDINATION

SECTION 12.1.  Securities Subordinated to Senior Indebtedness.

               The Company and each Holder, by its acceptance of Securities,
agree that (a) the payment of the principal of and interest on, or Additional
Amounts with respect to, the Securities and (b) any other payment in respect of
the Securities, including on account of the acquisition or redemption of the
Securities by the Company (including, without limitation, pursuant to Section
3(d) of the Registered Securities and the Bearer Securities) is subordinated, to
the extent and in the manner provided in this Article XII, to the prior payment
in full of all Senior Indebtedness of the Company, and all other Obligations in
respect thereof, whether outstanding at the date of this Indenture or thereafter
created, incurred, assumed or guaranteed, and that these subordination
provisions are for the benefit of the holders of Senior Indebtedness.

               This Article XII shall constitute a continuing offer to all
Persons who, in reliance upon such provisions, become holders of, or continue to
hold, Senior Indebtedness, and such provisions are made for the benefit of the
holders of Senior Indebtedness, and such holders are made obligees hereunder and
any one or more of them may enforce such provisions.

               To the extent any provision of this Article XII conflicts or is
inconsistent with any other provision of this Indenture, the provisions of this
Article XII shall govern and supersede such inconsistent or conflicting
provision.

SECTION 12.2.  No Payment on Securities in Certain Circumstances.

               (a)  No payment may be made by the Company on account of the
principal of, premium, if any, interest on, or Additional Amounts with respect
to, the Securities, or to acquire any of the Securities (including redemptions
of Securities at the option of the Holder) for cash or property (other than
Junior Securities), or on account of the redemption provisions of the
Securities, (i) upon the maturity of any Senior Indebtedness of the Company by
lapse of time, acceleration (unless waived) or otherwise, unless and 

                                     -47-
<PAGE>
 
until all principal of, premium, if any, and interest on such Senior
Indebtedness and all other Obligations in respect thereof are first paid in full
(or such payment is duly provided for), or (ii) in the event of default in the
payment of any principal of, premium, if any, or interest on, or any other
Obligation in respect of, any Senior Indebtedness of the Company when it becomes
due and payable, whether at maturity or at a date fixed for prepayment or by
declaration or otherwise (a "Payment Default"), unless and until such Payment
Default has been cured or waived by the holders of such Senior Indebtedness or
otherwise has ceased to exist.

               (b)  Upon (i) the happening of an event of default (other than a
Payment Default) that permits the holders of any Senior Indebtedness or their
representative immediately to accelerate its maturity and (ii) written notice of
such event of default given to the Company and the Trustee by the requisite
holders of such Senior Indebtedness or their representative (a "Payment
Notice"), then, unless and until such event of default has been cured or waived
by the requisite holders of such Senior Indebtedness or otherwise has ceased to
exist, no payment (by set-off or otherwise) may be made by or on behalf of the
Company on account of the principal of, premium, if any, interest on, or
Additional Amounts with respect to, the Securities, or to acquire or repurchase
any of the Securities for cash or property, or on account of the redemption
provisions of the Securities, in any such case other than payments made with
Junior Securities of the Company. Notwithstanding the foregoing, unless (I) the
Senior Indebtedness in respect of which such event of default exists has been
declared due and payable in its entirety within the Payment Blockage Period, and
(II) such declaration has not been rescinded or waived by the requisite holders
of such Senior Indebtedness, at the end of the Payment Blockage Period, the
Company shall be required to pay all sums not paid to the Holders of the
Securities during the Payment Blockage Period due to the foregoing prohibitions
and to resume, subject to this Article XII, all other payments as and when due
on the Securities. Any number of Payment Notices may be given; provided,
however, that (A) not more than one Payment Notice shall be given within a
period of any 360 consecutive days, and (B) no default that existed upon the
date of such Payment Notice or the commencement of such Payment Blockage Period
(whether or not such event of default is on the same issue of Senior
Indebtedness) shall be made the basis for the commencement of any other Payment
Blockage Period.

               (c)  In furtherance of the provisions of Section 12.1, in the
event that, notwithstanding the foregoing provisions of this Section 12.2, any
payment or distribution of assets of the Company (other than Junior Securities)
shall be received by the Trustee or the Holders or any Paying Agent at a time
when such payment or distribution is prohibited by the provisions of this
Section 12.2, then such payment or distribution shall be received and held in
trust by the Trustee or such Holders or Paying Agent (or, if the Company or any
Affiliate of the Company is acting as its own Paying Agent, money for any such
payment or distribution shall be segregated or held in trust) for the benefit of
the holders of Senior Indebtedness of the Company, and shall be paid or
delivered by the Trustee or such Holders or such Paying Agent, as the case may
be, to the holders of Senior Indebtedness of the Company remaining unpaid or
unprovided for or their representative or representatives, or to the trustee or
trustees under any indenture pursuant to which any instruments evidencing any of
such Senior Indebtedness of the Company may have been issued, ratably according
to the aggregate amounts remaining unpaid on account of the Senior Indebtedness
of the Company held or represented by each, for application to the payment of
all Senior Indebtedness of the Company in full after giving effect to any
concurrent payment and distribution to the holders of such Senior Indebtedness,
but only to the extent that as to any holder of such Senior Indebtedness, as
promptly as practical following receipt by such holder of written notice from
the Trustee to the holders of such Senior Indebtedness that such prohibited
payment has been received by the Trustee, Holder(s) or Paying Agent (or has been
segregated as provided above), such holder (or a representative therefor)
notifies the Trustee of the amounts then due and owing on such Senior
Indebtedness, if any, held by such holder and only the amounts specified in such
notices to the Trustee shall be paid to the holders of such Senior Indebtedness.

                                     -48-
<PAGE>
 
SECTION 12.3.  Securities Subordinated to Prior Payment of All Senior
               Indebtedness on Dissolution, Liquidation or Reorganization.

               Upon any distribution of assets of the Company upon any
dissolution, winding up, total or partial liquidation or reorganization of the
Company, whether voluntary or involuntary, in bankruptcy, insolvency,
receivership or a similar proceeding or upon assignment for the benefit of
creditors or any marshalling of assets or liabilities:

               (a)  the holders of all Senior Indebtedness of the Company shall
first be entitled to receive payments in full (or have such payment duly
provided for) before the Holders are entitled to receive any payment on account
of the principal of, premium, if any, interest on, and Additional Amounts with
respect to, the Securities (other than Junior Securities);

               (b) any payment or distribution of assets of the Company of any
kind or character, whether in cash, property or securities (other than Junior
Securities) to which the Holders or the Trustee on behalf of the Holders would
be entitled (by set-off or otherwise), except for the provisions of this Article
XII, shall be paid by the liquidating trustee or agent or other Person making
such a payment or distribution directly to the holders of Senior Indebtedness of
the Company or their representative to the extent necessary to make payment in
full of all such Senior Indebtedness remaining unpaid, after giving effect to
any concurrent payment or distribution to the holders of such Senior
Indebtedness; and

               (c)  in the event that, notwithstanding the foregoing, any
payment or distribution of assets of the Company of any kind or character,
whether in cash, property or securities (other than Junior Securities), shall be
received by the Trustee or the Holders or any Paying Agent (or, if the Company
or any Affiliate of the Company is acting as its own Paying Agent, money for any
such payment or distribution shall be segregated or held in trust) on account of
the principal of, premium, if any, interest on, or Additional Amounts with
respect to, the Securities before all Senior Indebtedness of the Company is paid
in full, such payment or distribution shall be received and held in trust by the
Trustee or such Holder or Paying Agent (or, if the Company or any Affiliate of
the Company is acting as its own Paying Agent, money for any such payment or
distribution shall be segregated or held in trust) for the benefit of the
holders of such Senior Indebtedness, or their respective representative, or the
trustee or trustees under any indenture pursuant to which any instruments
evidencing any of such Senior Indebtedness of the Company may have been issued,
ratably according to the respective amounts of such Senior Indebtedness held or
represented by each, to the extent necessary to make payment as provided herein
of all such Senior Indebtedness remaining unpaid after giving effect to all
concurrent payments and distributions and all provisions therefor to or for the
holders of such Senior Indebtedness, but only to the extent that as to any
holder of such Senior Indebtedness, as promptly as practical following receipt
by such holder of written notice from the Trustee to the holders of such Senior
Indebtedness that such prohibited payment has been received by the Trustee,
Holder(s) or Paying Agent (or has been segregated as provided above), such
holder (or a representative therefor) notifies the Trustee of the amounts then
due and owing on such Senior Indebtedness, if any, held by such holder and only
the amounts specified in such notices to the Trustee shall be paid to the
holders of such Senior Indebtedness.

SECTION 12.4.  Securityholders to Be Subrogated to Rights of Holders of Senior
               Indebtedness.

               Subject to the payment in full of all Senior Indebtedness of the
Company as provided herein, the Holders of Securities shall be subrogated to the
rights of the holders of such Senior Indebtedness to receive payments or
distributions of assets of the Company applicable to the Senior Indebtedness
until all amounts owing on the Securities shall be paid in full, and for the
purpose of such subrogation no such payments or distributions to the holders of
such Senior Indebtedness by the Company, or by or on behalf of the Holders by
virtue of this Article XII, which otherwise would have been made to the Holders
shall, as between the Company and the Holders, be deemed to be payment by the
Company on account of such 

                                     -49-
<PAGE>
 
Senior Indebtedness, it being understood that the provisions of this Article XII
are and are intended solely for the purpose of defining the relative rights of
the Holders, on the one hand, and the holders of such Senior Indebtedness, on
the other hand.

               If any payment or distribution to which the Holders would
otherwise have been entitled but for the provisions of this Article XII shall
have been applied, pursuant to the provisions of this Article XII, to the
payment of amounts payable under Senior Indebtedness of the Company, then the
Holders shall be entitled to receive from the holders of such Senior
Indebtedness any payments or distributions received by such holders of Senior
Indebtedness in excess of the amount sufficient to pay all amounts payable under
or in respect of such Senior Indebtedness in full.

SECTION 12.5.  Obligations of the Company Unconditional.

               Nothing contained in this Article XII or elsewhere in this
Indenture or in the Securities is intended to or shall impair as between the
Company and the Holders, the obligation of each such Person, which is absolute
and unconditional, to pay to the Holders the principal of, premium, if any,
interest on, and Additional Amounts with respect to, the Securities as and when
the same shall become due and payable in accordance with their terms, or is
intended to or shall affect the relative rights of the Holders and creditors of
the Company other than the holders of the Senior Indebtedness, nor shall
anything herein or therein prevent the Trustee or any Holder from exercising all
remedies otherwise permitted by applicable law upon default under this
Indenture, subject to the rights, if any, under this Article XII, of the holders
of Senior Indebtedness in respect of cash, property or securities of the Company
received upon the exercise of any such remedy. Notwithstanding anything to the
contrary in this Article XII or elsewhere in this Indenture or in the
Securities, upon any distribution of assets of the Company referred to in this
Article XII, the Trustee, subject to the provisions of Sections 7.1 and 7.2, and
the Holders shall be entitled to rely upon any order or decree made by any court
of competent jurisdiction in which such dissolution, winding up, liquidation or
reorganization proceedings are pending, or a certificate of the liquidating
trustee or agent or other Person making any distribution to the Trustee or to
the Holders for the purpose of ascertaining the Persons entitled to participate
in such distribution, the holders of the Senior Indebtedness and other
Indebtedness of the Company, the amount thereof or payable thereon, the amount
or amounts paid or distributed thereon and all other facts pertinent thereto or
to this Article XII so long as such court has been apprised of the provisions
of, or the order, decree or certificate makes reference to, the provisions of
this Article XII. The Trustee shall be entitled to rely on the delivery to it of
a written notice by a person representing himself to be a holder of Senior
Indebtedness (or a trustee or representative on behalf of such holder) to
establish that such a notice has been given by a holder of Senior Indebtedness
(or a trustee or representative on behalf of such holder). In the event that the
Trustee determines, in good faith, that further evidence is required with
respect to the right of any person as a holder of Senior Indebtedness to
participate in any payment or distribution pursuant to this Article XII, the
Trustee may request such person to furnish evidence to the reasonable
satisfaction of the Trustee as to the amount of Senior Indebtedness held by such
person, as to the extent to which such person is entitled to participate in such
payment or distribution, and as to other facts pertinent to the rights of such
person under this Article XII, and if such evidence is not furnished, the
Trustee may defer any payment to such person pending judicial determination as
to the right of such person to receive such payment. Nothing in this Article XII
shall apply to the claims of, or payments to, the Trustee under or pursuant to
Section 7.7.

SECTION 12.6.  Trustee Entitled to Assume Payments Not Prohibited in Absence of
               Notice.

               The Trustee or any Paying Agent (other than the Company acting as
its own Paying Agent) shall not at any time be charged with knowledge of the
existence of any facts which would prohibit the making of any payment to or by
the Trustee or such Paying Agent unless and until a Trust Officer of the Trustee
or such Paying Agent (other than the Company acting as its own Paying Agent), as
the case may be, shall have received, no later than one Business Day prior to
such payment, written notice thereof from the 

                                     -50-
<PAGE>
 
Company or from one or more holders of Senior Indebtedness or from any
representative therefor and, prior to the receipt of any such written notice,
the Trustee, subject to the provisions of Sections 7.1 and 7.2, and such Paying
Agent shall be entitled in all respects conclusively to assume that no such fact
exists.

SECTION 12.7.  Application by Trustee of Assets Deposited with It.

               Any deposit of assets with the Trustee or the Agent (whether or
not in trust) for the payment of principal of or interest on, or Additional
Amounts with respect to, any Securities shall be subject to the provisions of
Sections 12.1, 12.2, 12.3 and 12.4; provided that, if prior to one Business Day
preceding the date on which by the terms of this Indenture any such assets may
become distributable for any purpose (including, without limitation, the payment
of either principal of or interest on any Security) the Trustee or a Paying
Agent shall not have received with respect to such assets the written notice
provided for in Section 12.6, then the Trustee or such Paying Agent shall have
full power and authority to receive such assets and to apply the same to the
purpose for which they were received, and shall not be affected by any notice to
the contrary which may be received by it on or after such date.

SECTION 12.8.  Subordination Rights Not Impaired by Acts or Omissions of the
               Company or Holders of Senior Indebtedness.

               No right of any present or future holders of any Senior
Indebtedness to enforce subordination provisions contained in this Article XII
shall at any time in any way be prejudiced or impaired by any act or failure to
act on the part of the Company or by any act or failure to act, in good faith,
by any such holder, or by any noncompliance by the Company with the terms of
this Indenture, regardless of any knowledge thereof which any such holder may
have or be otherwise charged with. The holders of Senior Indebtedness may
extend, renew, modify or amend the terms of the Senior Indebtedness or any
security therefor and release, sell or exchange such security and otherwise deal
freely with the Company, all without affecting the liabilities and obligations
of the parties to this Indenture or the Holders.

SECTION 12.9.  Securityholders Authorize Trustee to Effectuate Subordination of
               Securities.

               Each Holder of the Securities by his acceptance thereof
authorizes and expressly directs the Trustee on his behalf to take such action
as may be necessary or appropriate to effectuate the subordination provisions
contained in this Article XII and to protect the rights of the Holders pursuant
to this Indenture, and appoints the Trustee its attorney-in-fact for such
purpose, including, in the event of any dissolution, winding up, liquidation or
reorganization of the Company (whether in bankruptcy, insolvency or receivership
proceedings or upon an assignment for the benefit of creditors of the Company),
the making of a timely filing of a claim for the unpaid balance of its
Securities in the form required in said proceedings and cause said claim to be
approved. If the Trustee does not file a proper claim or proof of debt in the
form required in such proceeding prior to 30 days before the expiration of the
time to file such claim or claims, then the holders of the Senior Indebtedness
or their representative are or is hereby authorized to have the right to file
and are or is hereby authorized to file an appropriate claim for and on behalf
of the Holders of said Securities. Nothing herein contained shall be deemed to
authorize the Trustee or the holders of Senior Indebtedness or their
representative to authorize or consent to or accept or adopt on behalf of any
Securityholder any plan of reorganization, arrangement, adjustment or
composition affecting the Securities or the rights of any Holder thereof, or to
authorize the Trustee or the holders of Senior Indebtedness or their
representative to vote in respect of the claim of any Securityholder in any such
proceeding.

                                     -51-
<PAGE>
 
SECTION 12.10.    Right of Trustee to Hold Senior Indebtedness.

               The Trustee shall be entitled to all of the rights set forth in
this Article XII in respect of any Senior Indebtedness at any time held by it to
the same extent as any other holder of Senior Indebtedness, and nothing in this
Indenture shall be construed to deprive the Trustee of any of its rights as such
holder.

SECTION 12.11.    Article XII Not to Prevent Events of Default.

               The failure to make a payment on account of principal of,
premium, if any, interest on, or Additional Amounts with respect to, the
Securities by reason of any provision of this Article XII shall not be construed
as preventing the occurrence of a Default or an Event of Default under Section
6.1 or in any way prevent the Holders or the Trustee from exercising any right
or remedy hereunder or at law or in equity other than the right to receive
payment on the Securities in accordance with the terms of this Article XII.

SECTION 12.12.    No Fiduciary Duty of Trustee to Holders of Senior
                  Indebtedness.

               The Trustee shall not be deemed to owe any fiduciary duty to the
holders of Senior Indebtedness, and shall not be liable to any such holders
(other than for its willful misconduct or negligence) if it shall in good faith
mistakenly pay over or distribute to the Holders of Securities or the Company or
any other Person, cash, property or securities to which any holders of Senior
Indebtedness shall be entitled by virtue of this Article XII or otherwise.
Nothing in this Section 12.12 shall affect the obligation of any other such
Person to hold such payment for the benefit of, and to pay such payment over to,
the holders of Senior Indebtedness or their representative in accordance with
the provisions hereof.


                                 ARTICLE XIII

                           CONVERSION OF SECURITIES

SECTION 13.1.  Conversion Privilege.

               Subject to and upon compliance with the provisions of this
Article XIII, at the option of the Holder thereof, any outstanding Registered
Security or Bearer Security or, in the case of any Registered Security or Bearer
Security of a denomination other than $1,000, any portion of the principal
amount thereof which is $1,000 or an integral multiple of $1,000, may be
converted on or after the Exchange Date and prior to the Stated Maturity
thereof, at the principal amount thereof, or of such portion thereof, into fully
paid and nonassessable shares of Common Stock ("Conversion Shares") as set forth
in the Registered Securities and Bearer Securities. The right to convert
Securities called for redemption or delivered for repurchase will terminate at
the close of business on the fifth day next preceding the Redemption Date (or if
such date is not a Business Day, on the next succeeding Business Day) and will
be lost if not exercised prior to that time. The price at which shares of Common
Stock shall be delivered upon conversion (herein called the "Conversion Price")
shall be initially $34.35 per share of Common Stock. The Conversion Price shall
be adjusted in certain instances as provided in paragraphs (c)(i), (ii), (iii),
(iv), (v) and (vi) of Section 4 of the Registered Securities and Bearer
Securities.

SECTION 13.2.  Exercise of Conversion Privilege.

               (a)  In order to exercise the conversion privilege, the Holder of
any Security to be converted shall surrender such Security, together with all
unmatured Coupons (except that any Bearer Security called for redemption on May
16, 1999 need not be delivered with the Coupon that matures on that date), if
any, and any matured Coupons in default appertaining thereto, if any, at the
office of the 

                                     -52-
<PAGE>
 
Conversion Agent or any office or agency of the Company maintained for that
purpose pursuant to Section 4.2 hereof, accompanied by written notice, in
substantially the form set forth in the Registered Securities and the Bearer
Securities, to the Company, at such office or agency that the Holder elects to
convert such Security or, if less than the entire principal amount of a
Registered Security or Bearer Security of a denomination other than $1,000 is to
be converted, the portion thereof to be converted. Upon presentment for
conversion of any Securities pursuant to this Section 13.2, the Conversion Agent
shall immediately on that day notify the Company, the Trustee and the transfer
agent with respect to the Common Stock (initially, First Interstate Bank of
California) of such presentment. Such notice to the Company shall identify the
aggregate principal amount of Securities to be converted and the number of
shares of Common Stock to be issued in connection with such conversion. If less
than the full principal amount of the Security or Securities presented for
conversion is requested to be converted or may be converted, such notice to the
Company shall also specify the amount, if any, of cash to be distributed to the
presenter thereof or the aggregate principal amount of the Security or
Securities to remain outstanding upon conversion. No payment or adjustment shall
be made upon any conversion on account of any dividends on the Common Stock
issued upon conversion. If a Registered Security is converted after the close of
business on an Interest Record Date and before the opening of business on the
next succeeding Interest Payment Date, the interest due on such Interest Payment
Date shall be paid on such Interest Payment Date to the person in whose name
that Security is registered at the close of business on that Interest Record
Date. Except as otherwise provided in this paragraph, no payment or adjustment
shall be made upon any conversion on account of any interest accrued on the
Securities surrendered for conversion or on account of any dividends or
distributions on the Conversion Shares issued upon conversion. Registered
Securities surrendered for conversion during the period after the close of
business on any Interest Record Date next preceding any Interest Payment Date to
the close of business on such Interest Payment Date shall (except in the case of
Registered Securities or portions thereof which are called for redemption on May
16, 1999) be accompanied by payment of an amount equal to the interest payable
on such Interest Payment Date on the principal amount being surrendered for
conversion. Upon receipt of such notice, the Company shall take all necessary
actions in connection with the issuance, execution, authentication and delivery
to the Conversion Agent of the requisite number of shares of Common Stock
together with any amounts or replacement Securities representing any unconverted
portion of the Security or Securities presented for conversion, and to cause the
transfer agent with respect to the Common Stock to register the issuance of the
same in the name of the presenter of such Security or Securities (or its
nominee), whereupon the Conversion Agent shall deliver to the presenter of such
Security or Securities such shares of Common Stock, amounts, if any, and
replacement Securities, if any, and concurrently shall cancel the Security or
Securities presented.

               (b)  Securities shall be deemed to have been converted
immediately prior to the close of business on the day of surrender of such
Securities for conversion in accordance with the foregoing provisions, and at
such time the rights of the Holders of such Securities as Holders shall cease
(except for the right to receive the related Conversion Shares), and the person
or persons entitled to receive the Common Stock issuable upon conversion shall
be treated for all purposes as the record holder or holders of such Common Stock
at such time. As promptly as practicable on or after the conversion date, the
Company shall cause to be issued or delivered at such office or agency a
certificate or certificates for the number of full shares of Common Stock
issuable or deliverable upon conversion, together with payment, in lieu of any
fraction of a share, as provided below.

               (c)  In the case of any Registered Security or Bearer Security of
a denomination other than $ 1,000 that is converted in part only, upon such
conversion the Company shall execute and the Trustee shall authenticate and
deliver to the Conversion Agent, and the Conversion Agent shall deliver to the
Holder thereof, in each case at the expense of the Company, a new Security or
Securities of any authorized kind or denomination as requested by such Holder,
in aggregate principal amount equal to the unconverted portion of the principal
amount of such Security.

                                     -53-
<PAGE>
 
SECTION 13.3.  Fractional Interests.

               No fractional shares of Common Stock shall be issued or delivered
upon conversion of Securities. If more than one Security shall be surrendered
for conversion at one time by the same Holder, the number of full shares which
shall be issuable or deliverable upon conversion thereof shall be computed on
the basis of the aggregate principal amount of the Securities (or, in the case
of Registered Securities or Bearer Securities of a denomination other than
$1,000, specified portions thereof) so surrendered. Instead of any fractional
share of Common Stock which would otherwise be issuable or deliverable upon
conversion of any Security or Securities (or, in the case of Registered
Securities or Bearer Securities of a denomination other than $1,000, specified
portions thereof), the Company shall pay a cash adjustment in respect of such
fraction in an amount equal to the same fraction of the Closing Price per share
of Common Stock at the close of business on the day preceding the day of
conversion.

SECTION 13.4.  Adjustment of Conversion Price.

               Whenever the Conversion Price is adjusted as provided in the
Registered Securities and Bearer Securities:

                    (a)  the Company shall compute the adjusted Conversion Price
                         in accordance with the terms of the Registered
                         Securities and Bearer Securities and shall prepare a
                         certificate signed by the President, any Vice President
                         or the Treasurer of the Company setting forth the
                         adjusted Conversion Price and showing in reasonable
                         detail the facts upon which such adjustment is based,
                         and such certificate shall forthwith be filed with the
                         Trustee and the Conversion Agent and at each office or
                         agency maintained for the purpose of conversion of
                         Securities pursuant to Section 4.2 hereof; and

                    (b)  a notice stating that the Conversion Price has been
                         adjusted and setting forth the adjusted Conversion
                         Price shall forthwith be required, and, as soon as
                         practicable after it is required, the Company shall
                         promptly cause a notice setting forth the adjusted
                         Conversion Price to be given to the Holders of the
                         Securities as provided in Section 14.2 hereof.

SECTION 13.5.  Notice of Certain Events.

               In case:

                    (a)  the Company shall declare a dividend (or any other
                         distribution) on its Common Stock payable otherwise
                         than in cash out of its retained earnings (excluding
                         dividends payable in stock for which adjustment is made
                         pursuant to the terms of the Registered Securities and
                         Bearer Securities);

                    (b)  the Company shall authorize the granting to the holders
                         of its Common Stock of rights or warrants to subscribe
                         for or purchase any shares of capital stock of any
                         class or of any other rights;

                    (c)  of any reclassification of the Common Stock of the
                         Company (other than a subdivision or combination of its
                         outstanding shares of Common Stock), or of any
                         consolidation or merger to which the Company is a party
                         and for which approval of any stockholders of the
                         Company is required, or of the sale or transfer of all
                         or substantially all of the assets of the Company;

                                     -54-
<PAGE>
 
                    (d)  of the involuntary dissolution, liquidation or winding
                         up of the Company; or

                    (e)  the Company proposes to take any other action which
                         would require an adjustment of the Conversion Price
                         pursuant to the Registered Securities and Bearer
                         Securities;

then the Company shall cause to be filed with the Conversion Agent and at each
office or agency maintained for the purpose of conversion of Securities a notice
setting forth the adjusted Conversion Price and shall cause notice to be given
as provided in Section 14.2 hereof except that notice need be given to the
Holders once at least 20 days (or 10 days in any case specified in clause (a) or
(b) above) prior to the applicable record date hereinafter specified, stating
(x) the date on which a record is to be taken for the purpose of such dividend,
distribution, rights or warrants or, if a record is not to be taken, the date as
of which the holders of Common Stock of record to be entitled to such dividend,
distribution, rights or warrants is to be determined, or (y) the date on which a
reclassification, consolidation, merger, sale, transfer, dissolution,
liquidation or winding up is expected to become effective, and the date as of
which it is expected that holders of Common Stock of record shall be entitled to
exchange their shares of Common Stock for the securities, cash or other property
deliverable upon such reclassification, consolidation, merger, sale, transfer,
dissolution, liquidation or winding up.  The failure to give notice required by
this Section 13.5 or any defect therein shall not affect the legality or
validity of any dividend, distribution, rights, warrants, reclassification,
consolidation, merger, sale, transfer, dissolution, liquidation or winding up,
or the vote on any such action.

SECTION 13.6.  Continuation of Conversion Privilege in Case of Reclassification,
               Change, Merger, Consolidation or Sale of Assets.

               (a)  In case of any consolidation with, or merger of the Company
into, any other corporation, or in case of any merger of another corporation
into the Company (other than a merger which does not result in any
reclassification, conversion, exchange or cancellation of outstanding shares of
Common Stock of the Company), or in case of any sale or transfer of all or
substantially all of the assets of the Company, the corporation formed by such
consolidation or resulting from such merger or which acquires such assets, as
the case may be, shall execute and deliver to the Trustee a supplemental
indenture to the Indenture providing that the Holder of each Registered Security
and Bearer Security shall have the right during the period such Security shall
be convertible as specified in the Registered Securities and Bearer Securities
to convert such Security only into the kind and amount of securities, cash and
other property receivable upon such consolidation, merger, sale or transfer by a
holder of the number of shares of Common Stock of the Company into which such
Security might have been converted immediately prior to such consolidation,
merger, sale or transfer assuming such holder of Common Stock failed to exercise
any rights of election as to the kind or amount of securities, cash and other
property receivable upon such consolidation, merger, sale or transfer, and
assuming, if such consolidation, merger, sale or transfer is prior to the period
such Security shall be convertible, that the Securities were convertible at such
time at the initial Conversion Price as adjusted pursuant to the terms of the
Registered Securities and Bearer Securities. Such amendment shall provide for
adjustments which, for events subsequent to the effective date of such
amendment, shall be as nearly equivalent as may be practicable to the
adjustments provided for in the Registered Securities and the Bearer Securities.
The above provisions of this Section 13.6(a) shall similarly apply to successive
consolidations, mergers, sales or transfers.

               (b)  Any Common Stock issued upon conversion of a Restricted
Security ("Restricted Common Stock") at any time prior to the date which is
three years (or such shorter period as shall be permitted as a result of an
amendment to the rules under the Securities Act in respect thereof, after the
Closing Date when a registration statement in respect of such Common Stock is
not effective under the Securities Act shall be subject to the restrictions on
transfer set forth in Section 2.6 hereof to the same extent as the Restricted
Securities which were so converted. All shares of Restricted Common Stock shall

                                     -55-
<PAGE>
 
bear the legend and transfer requirements set forth on the form of Registered
Security set forth as Exhibit A hereto.

SECTION 13.7.  Taxes on Conversion.

               The Company will pay any and all documentary, stamp or similar
taxes in respect of the issue or delivery of shares of Common Stock on
conversion of Securities pursuant thereto; provided, however, that the Company
shall not be required to pay any tax which may be payable in respect of any
transfer involved in the issue or delivery of shares of Common Stock in a name
other than that of the Holder of the Securities to be converted and no such
issue or delivery shall be made unless and until the person requesting such
issue or delivery has paid to the Company the amount of any such tax or has
established, to the satisfaction of the Company, that such tax has been paid.
The Company extends no protection with respect to any other taxes imposed in
connection with conversion of Securities.

SECTION 13.8.  Company to Provide Stock.

               The Company shall reserve, free from preemptive rights, out of
its authorized but unissued shares, sufficient shares to provide for the
conversion of the Securities from time to time as such Securities are presented
for conversion, provided, that nothing contained herein shall be construed to
preclude the Company from satisfying its obligations in respect of the
conversion of Securities by delivery of repurchased shares of Common Stock which
are held in the treasury of the Company. If any shares of Common Stock to be
reserved for the purpose of conversion of Securities hereunder require
registration with or approval of any governmental authority under any federal or
state law before such shares may be validly issued or delivered upon conversion,
then the Company covenants that it will in good faith and as expeditiously as
possible use its best efforts to secure such registration or approval, as the
case may be, provided, however, that nothing in this Section 13.8 shall be
deemed to limit in any way the obligations of the Company provided in this
Article XIII. Before taking any action which would cause an adjustment reducing
the Conversion Price below the then par value, if any, of the Common Stock, the
Company will take all corporate action which may, in the Opinion of Counsel, be
necessary in order that the Company may validly and legally issue fully paid and
non-assessable shares of Common Stock at such adjusted Conversion Price.

               The Company covenants that all shares of Common Stock which may
be issued upon conversion of Securities will upon issue be fully paid and non-
assessable by the Company and free of preemptive rights.

SECTION 13.9.  Disclaimer of Responsibility for Certain Matters.

               Neither the Trustee, any agent of the Trustee, the Conversion
Agent nor any agency appointed by the Company shall at any time be under any
duty or responsibility to any Holder of Securities to determine whether any
facts exist which may require any adjustment of the Conversion Price, or with
respect to the certificate referred to in Section 13.4 hereof, or with respect
to the nature or extent of any such adjustment when made, or with respect to the
method employed, or herein or in any supplemental indenture provided to be
employed, in making the same. Neither the Trustee, any agent of the Trustee, the
Conversion Agent nor any agency appointed by the Company shall be accountable
with respect to the validity or value (or the kind or amount) of any shares of
Common Stock, or of any securities or property (including cash), which may at
any time be issued or delivered upon the conversion of any Security; and neither
the Trustee nor the Conversion Agent or any agency appointed by the Company
makes any representation with respect thereto. Neither the Trustee, any agent of
the Trustee, the Conversion Agent nor any agency appointed by the Company shall
be responsible for any failure of the Company to issue, register the transfer of
or deliver any shares of Common Stock or stock certificates or other securities
or property (including cash) upon the surrender of any Security for the purpose
of conversion or, subject to Article VIII hereof, to comply with any of the
covenants of the Company contained in this Article XIII.

                                     -56-
<PAGE>
 
SECTION 13.10. Return of Funds Deposited for Redemption of Converted Securities.

               Any funds which at any time shall have been deposited by the
Company or on its behalf with the Trustee or any other Paying Agent for the
purpose of paying the principal of and interest on, or Additional Amounts with
respect to, any of the Securities and which shall not be required for such
purposes because of the conversion of such Securities, as provided in this
Article XIII, shall after such conversion be repaid to the Company by the
Trustee or such other Paying Agent.


                                  ARTICLE XIV
                                 MISCELLANEOUS

SECTION 14.1.  TIA Controls.

               If any provision of this Indenture limits, qualifies, or
conflicts with the duties imposed by operation of the TIA, the imposed duties,
upon qualification of the Indenture under the TIA, shall control.

SECTION 14.2.  Notices.

               All notices hereunder shall be deemed to have been given when
deposited in the mail as first class mail, registered or certified, return
receipt requested, postage prepaid, addressed to any party hereto as follows:

               The Company:           Veterinary Centers of America, Inc
                                      3420 Ocean Park Boulevard, Suite 1000
                                      Santa Monica, California 90405
                                      Attn:  Chief Financial Officer
                                      (with a copy of the attention of the
                                      General Counsel at the same address)

               The Trustee:           The Chase Manhattan Bank, N.A.
                                      4 Chase MetroTech Center
                                      3rd Floor, Institutional Trust
                                      Brooklyn, New York 11245
                                      Attn:  Corporate Trust Administration

               The Paying Agents:     The Chase Manhattan Bank, N.A.,
                                      International London Branch
                                      Woolgate House
                                      Coleman Street
                                      London EC2P 2HD
                                      England
                                      Attn:  Manager Corporate Trust Operations

                                      Chase Manhattan Bank Luxembourg, S.A.
                                      5 Rue Plaetis
                                      L-2338 Luxembourg
                                      Attn:  Manager Corporate Trust Operations

or at any other address of which any of the foregoing shall have notified the
others in writing. Notices to Holders of the Securities will be given by
publication in an Authorized Newspaper in The City of New York and in London
and, for so long as the Securities are listed on the Luxembourg Stock Exchange,
in Luxembourg, or, if publication in either London or Luxembourg is not
practical, in an Authorized Newspaper as directed by the Company in Europe. In
addition, notices to Holders of Registered Securities

                                     -57-
<PAGE>
 
will be given by first-class mail at the Company's expense to the addresses of
such Holders as they appear in the register maintained by the Trustee on the
fifteenth day prior to such mailing. Such notices will be deemed to have been
given on the date of such publication or mailing or, if published in such
newspapers on different dates, on the date of the first such publication. The
Trustee shall promptly furnish to the Company, the Paying Agent and to each
other paying agency of the Company a copy of each notice so published or mailed.

SECTION 14.3.  Communications by Holders with Other Holders.

               Securityholders may communicate pursuant to Section 312(b) of the
TIA with other Securityholders with respect to their rights under this Indenture
or the Securities. The Company, the Trustee, the Registrar and any other Person
shall have the protection of Section 312(c) of the TIA.

SECTION 14.4.  Certificate and Opinion as to Conditions Precedent.

               Upon any request or application by the Company to the Trustee to
take any action under this Indenture, the Company shall furnish to the Trustee:

               (1)  an Officers' Certificate (in form reasonably satisfactory to
                    the Trustee) stating that, in the opinion of the signers,
                    all conditions precedent, if any, provided for in this
                    Indenture relating to the proposed action have been complied
                    with; and

               (2)  an Opinion of Counsel (in form reasonably satisfactory to
                    the Trustee) stating that, in the opinion of such counsel,
                    all such conditions precedent have been complied with.

SECTION 14.5.  Statements Required in Certificate or Opinion.

               Each certificate or opinion delivered by or on behalf of the
Company with respect to compliance with a condition or covenant provided for in
this Indenture shall include:

               (1)  a statement that the Person making such certificate or
                    opinion has read such covenant or condition;

               (2)  a brief statement as to the nature and scope of the
                    examination or investigation upon which the statements or
                    opinions contained in such certificate or opinion are based;

               (3)  a statement that, in the opinion of such Person, he has made
                    such examination or investigation as is necessary to enable
                    him to express an informed opinion as to whether or not such
                    covenant or condition has been complied with; and

               (4)  a statement as to whether or not, in the opinion of each
                    such Person, such condition or covenant has been complied
                    with; provided, however, that with respect to matters of
                    fact an Opinion of Counsel may rely on an Officers'
                    Certificate or certificates of public officials.

SECTION 14.6.  Rules by Trustee, Paying Agent, Registrar.

               The Trustee may make reasonable rules for action by or at a
meeting of Securityholders. The Paying Agent or Registrar may make reasonable
rules for its functions.

                                     -58-
<PAGE>
 
SECTION 14.7.  Legal Holidays.

               In any case where the date of maturity of the principal of or
interest on (or Additional Amounts, if any, with respect to) the Securities or
the date fixed for redemption of any Security or the last day on which a
Security may be converted shall be at any place of payment (or such other act) 
a day other than a Business Day, then payment of principal or interest (or
Additional Amounts, if any), or presentation for conversion, need not be made on
such date at such place but may be made on the next succeeding Business Day at
such place of payment (or such other act), with the same force and effect as if
made on the date of maturity or the date fixed for redemption or such last day
on which a Security may be converted, and no interest shall accrue for the
period after such date.

SECTION 14.8.  Taxes.

               The Company will pay all stamp taxes and other similar duties, if
any, that may be imposed by the United States of America or the United Kingdom,
or any state or political subdivision thereof or taxing authority therein, with
respect to the execution or delivery of this Indenture, or the issuance of the
Regulation S Global Security, or the exchange from time to time of the
Regulation S Global Security for Registered Securities or Bearer Securities, or
with respect to the issuance or delivery of shares of Common Stock on conversion
of Securities; provided, however, that the Company shall not be required to pay
any tax or duty which may be payable in respect of any transfer involved in the
issuance or delivery of shares of Common Stock in a name other than that of the
holder of the Security or Securities to be converted, and no such issuance or
delivery shall be made unless and until the person requesting such issuance has
paid to the Company the amount of any such tax or duty or has established to the
satisfaction of the Company that such tax or duty has been paid; and further
provided, that the Company shall not be required to pay any tax or duty that may
be payable in respect of any accrued interest paid in connection with the
conversion of the Securities.

SECTION 14.9.  Governing Law.

               THIS INDENTURE AND THE SECURITIES SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, AS APPLIED TO
CONTRACTS MADE AND PERFORMED WITHIN THE STATE OF NEW YORK. THE COMPANY HEREBY
IRREVOCABLY SUBMITS TO THE JURISDICTION OF ANY NEW YORK STATE COURT SITTING IN
THE BOROUGH OF MANHATTAN IN THE CITY OF NEW YORK OR ANY FEDERAL COURT SITTING IN
THE BOROUGH OF MANHATTAN IN THE CITY OF NEW YORK IN RESPECT OF ANY SUIT, ACTION
OR PROCEEDING ARISING OUT OF OR RELATING TO THIS INDENTURE AND THE SECURITIES,
AND IRREVOCABLY ACCEPTS FOR ITSELF AND IN RESPECT OF ITS PROPERTY, GENERALLY AND
UNCONDITIONALLY, JURISDICTION OF THE AFORESAID COURTS. THE COMPANY IRREVOCABLY
WAIVES, TO THE FULLEST EXTENT IT MAY EFFECTIVELY DO SO UNDER APPLICABLE LAW, ANY
OBJECTION WHICH IT MAY NOW OR HEREAFTER HAVE TO THE LAYING OF THE VENUE OF ANY
SUCH SUIT, ACTION OR PROCEEDING BROUGHT IN ANY SUCH COURT AND ANY CLAIM THAT ANY
SUCH SUIT, ACTION OR PROCEEDING BROUGHT IN ANY SUCH COURT HAS BEEN BROUGHT IN AN
INCONVENIENT FORUM. NOTHING HEREIN SHALL AFFECT THE RIGHT OF THE TRUSTEE OR ANY
SECURITYHOLDER TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY LAW OR TO
COMMENCE LEGAL PROCEEDINGS OR OTHERWISE PROCEED AGAINST THE COMPANY IN ANY OTHER
JURISDICTION.

SECTION 14.10. Agent for Service of Process.

               As long as any of the Securities or Coupons remain outstanding,
the Company will at all times have an authorized agent in The City of New York,
upon whom process may be serviced in any legal

                                     -59-
<PAGE>
 
action or proceeding arising out of or relating to this Indenture or any
Security or any Coupons appertaining thereto.  Service of process upon such
agent and written notice of such service mailed or delivered to the Company
shall to the extent permitted by law be deemed in every respect effective
service of process upon the Company in any such legal action or proceeding.  The
Company hereby appoints the Trustee as its agent for such purpose, and covenants
and agrees that service of process in any legal action or proceeding may be made
upon it at the office of the Trustee at 4 Chase MetroTech Center, 3rd Floor,
Institutional Trust Administration, Brooklyn, New York 11245, U.S.A., Attention:
Corporate Trust Department (or such other address in The City of New York as may
be the Principal Corporate Trust Office of the Trustee in The City of New York),
unless and until the Company shall designate another agent for such purpose by
written notice to the Trustee.  If the Trustee receives any such service of
process, it shall promptly notify the Company of such service.

SECTION 14.11. No Adverse Interpretation of Other Agreements.

               This Indenture may not be used to interpret another indenture,
loan or debt agreement of the Company or any of its Subsidiaries. Any such
indenture, loan or debt agreement may not be used to interpret this Indenture.

SECTION 14.12. No Recourse Against Others.

               No direct or indirect partner, employee, stockholder, director or
officer, as such, past, present or future of the Company or any successor
corporation, shall have any personal liability in respect of the obligations of
the Company under the Securities or this Indenture by reason of his, her or its
status as such partner, stockholder, employee, director or officer. Each
Securityholder by accepting a Security waives and releases all such liability.
Such waiver and release are part of the consideration for the issuance of the
Securities.

SECTION 14.13. Successors.

               All agreements of the Company in this Indenture and the
Securities shall bind its successors. All agreements of the Trustee in this
Indenture shall bind its successors.

SECTION 14.14. Duplicate Originals.

               All parties may sign any number of copies or counterparts of this
Indenture. Each signed copy or counterpart shall be an original, but all of them
together shall represent the same agreement.

SECTION 14.15. Severability.

               In case any one or more of the provisions in this Indenture or in
the Securities shall be held invalid, illegal or unenforceable, in any respect
for any reason, the validity, legality and enforceability of any such provision
in every other respect and of the remaining provisions shall not in any way be
affected or impaired thereby, it being intended that all of the provisions
hereof shall be enforceable to the full extent permitted by law.

SECTION 14.16. Table of Contents, Headings, Etc.

               The Table of Contents, Cross-Reference Table and headings of the
Articles and the Sections of this Indenture have been inserted for convenience
of reference only, are not to be considered a part hereof and shall in no way
modify or restrict any of the terms or provisions hereof.

                                     -60-
<PAGE>
 
SECTION 14.17. Qualification of Indenture.

               The Company shall qualify this Indenture under the TIA in
accordance with the terms and conditions of the Registration Rights Agreement
and shall pay all reasonable costs and expenses (including attorneys' fees for
the Company, the Trustee and the Manager) incurred in connection therewith,
including, but not limited to, costs and expenses of qualification of the
Indenture and the Securities and printing this Indenture and the Securities. The
Trustee shall be entitled to receive from the Company any such Officers'
Certificate, Opinions of Counsel or other documentation as it may reasonably
request in connection with any such qualification of this Indenture under the
TIA.

SECTION 14.18. Registration Rights.

               Certain Holders of the Securities are entitled to certain
registration rights with respect to such Securities pursuant to, and subject to
the terms of, the Registration Rights Agreement.

                                     -61-
<PAGE>
 
                                  SIGNATURES


          IN WITNESS WHEREOF, the parties hereto have caused this Indenture to
be duly executed as of the date first written above.

                                        VETERINARY CENTERS OF AMERICA, INC.
                                        a Delaware corporation



[Seal]                                  By: [SIGNATURE ILLEBIBLE]
                                            --------------------- 
                                            Name:
                                            Title:

[SIGNATURE ILLEGIBLE]
Attest:

                                        THE CHASE MANHATTAN BANK, N.A.,
                                        as Trustee



[Seal]                                  By: _____________________
                                            Name:
                                            Title:

Attest:
<PAGE>
 
                                  SIGNATURES


          IN WITNESS WHEREOF, the parties hereto have caused this indenture to 
be duly executed as of the date first written above.

                              
                                        VETERINARY CENTERS OF AMERICA, INC.
                                        a Delaware corporation



[Seal]                                  By: _______________________
                                           Name  
                                           Title

Attest:

                                        THE CHASE MANHATTAN BANK, N.A.,
                                        as Trustee



[Seal]                                  By: Lucia Jaklitsch
                                           ------------------------
                                           Name: LUCIA JAKLITSCH
                                           Title: ASSISTANT TREASURER

Attest:

         [SIGNATURE ILLEGIBLE]
<PAGE>
 
                                   EXHIBIT A

                     (FORM OF FACE OF REGISTERED SECURITY)

     [Unless and until it is exchanged in whole or in part for Securities in
definitive form, this Security may not be transferred except as a whole by the
Depositary to a nominee of the Depositary or by a nominee of the Depositary to
the Depositary or another nominee of the Depositary or by the Depositary or any
such nominee to a successor Depositary or a nominee of such successor
Depositary. Unless this certificate is presented by an authorized representative
of The Depository Trust Company, a New York corporation (55 Water Street, New
York, New York) ("DTC"), to the issuer or its agent for registration of
transfer, exchange or payment, and any certificate issued is registered in the
name of Cede & Co. or such other name as may be requested by an authorized
representative of DTC (and any payment is made to Cede & Co. or such other
entity as may be requested by an authorized representative of DTC), ANY
TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON
IS WRONGFUL inasmuch as the registered owner hereof, Cede & Co., has an interest
herein.]

     [THE SECURITIES EVIDENCED HEREBY HAVE NOT BEEN REGISTERED UNDER THE UNITED
STATES SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE
SECURITIES LAWS AND NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION
HEREIN MAY BE OFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR
OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION UNLESS SUCH
TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, REGISTRATION. EACH PURCHASER OF
THIS SECURITY IS HEREBY NOTIFIED THAT THE SELLER MAY BE RELYING ON THE EXEMPTION
FROM THE PROVISIONS OF SECTION 5 OF THE SECURITIES ACT PROVIDED BY RULE 144A
THEREUNDER. THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF, REPRESENTS,
ACKNOWLEDGES AND AGREES FOR THE BENEFIT OF THE COMPANY THAT:

          (I)    IT HAS ACQUIRED A "RESTRICTED" SECURITY WHICH HAS NOT BEEN
                 REGISTERED UNDER THE SECURITIES ACT;

          (II)   IT WILL NOT OFFER, SELL OR OTHERWISE TRANSFER THIS SECURITY,
                 PRIOR TO THE DATE WHICH IS THREE YEARS (OR SUCH SHORTER PERIOD
                 AS SHALL BE PERMITTED AS A RESULT OF AN AMENDMENT TO THE RULES
                 UNDER THE SECURITIES ACT IN RESPECT THEREOF) AFTER THE LATER OF
                 THE DATE OF ORIGINAL ISSUANCE HEREOF AND THE LAST DATE ON WHICH
                 THE COMPANY OR ANY AFFILIATED PERSON OF THE COMPANY WAS THE
                 OWNER OF THIS SECURITY (OR ANY PREDECESSOR OF SUCH SECURITY)
                 (THE "RESALE RESTRICTION TERMINATION DATE") EXCEPT

          (A)    TO THE COMPANY,

          (B)    PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BEEN DECLARED
                 EFFECTIVE UNDER THE SECURITIES ACT,

          (C)    FOR SO LONG AS THIS SECURITY IS ELIGIBLE FOR RESALE PURSUANT TO
                 RULE 144A, TO A PERSON WHO THE SELLER REASONABLY BELIEVES IS A
                 "QUALIFIED INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER
                 THE SECURITIES ACT) IN A TRANSACTION MEETING THE REQUIREMENTS
                 OF RULE 144A,

                                      A-1
<PAGE>
 
          (D)    PURSUANT TO OFFERS AND SALES THAT OCCUR OUTSIDE THE UNITED
                 STATES WITHIN THE MEANING OF REGULATION S UNDER THE SECURITIES
                 ACT,

          (E)    IN A TRANSACTION ARRANGED BY A BROKER OR DEALER REGISTERED
                 UNDER THE UNITED STATES SECURITIES EXCHANGE ACT OF 1934, AS
                 AMENDED, TO AN INSTITUTIONAL "ACCREDITED INVESTOR" (WITHIN THE
                 MEANING OF SUBPARAGRAPHS (A)(1), (2), (3) OR (7) OF RULE 501
                 UNDER THE SECURITIES ACT) THAT IS ACQUIRING THIS SECURITY FOR
                 ITS OWN ACCOUNT, OR FOR THE ACCOUNT OF SUCH AN INSTITUTIONAL
                 "ACCREDITED INVESTOR," FOR INVESTMENT PURPOSES AND NOT WITH A
                 VIEW TO, OR FOR OFFER OR SALE IN CONNECTION WITH, ANY
                 DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, OR

          (F)    PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION
                 REQUIREMENTS OF THE SECURITIES ACT AND, IN EACH CASE, IN
                 ACCORDANCE WITH THE APPLICABLE SECURITIES LAWS OF ANY STATE OF
                 THE UNITED STATES OR ANY APPLICABLE JURISDICTION; AND

          (III)  IT WILL, AND EACH SUBSEQUENT HOLDER IS REQUIRED TO, NOTIFY ANY
                 PURCHASER FROM IT OF THIS SECURITY OF THE RESALE RESTRICTIONS
                 SET FORTH IN (II) ABOVE. IF ANY RESALE OR OTHER TRANSFER OF
                 THIS SECURITY IS PROPOSED TO BE MADE PURSUANT TO CLAUSE II(E)
                 ABOVE PRIOR TO THE DATE WHICH IS THREE YEARS (OR SUCH SHORTER
                 PERIOD AS SHALL BE PERMITTED AS A RESULT OF AN AMENDMENT TO THE
                 RULES UNDER THE SECURITIES ACT IN RESPECT THEREOF) AFTER THE
                 DATE OF ORIGINAL ISSUANCE HEREOF, THE TRANSFEROR SHALL DELIVER
                 A LETTER FROM THE TRANSFEREE CONTAINING CERTAIN REPRESENTATIONS
                 AND AGREEMENTS RELATING TO THE RESTRICTIONS ON TRANSFER OF THIS
                 SECURITY. ANY OFFER, SALE OR OTHER DISPOSITION PURSUANT TO THE
                 FOREGOING CLAUSES (II)(D), (E) AND (F) IS SUBJECT TO THE RIGHT
                 OF THE ISSUER OF THIS SECURITY AND THE TRUSTEE TO REQUIRE THE
                 DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATIONS OR OTHER
                 INFORMATION ACCEPTABLE TO THEM IN FORM AND SUBSTANCE. THIS
                 LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER AFTER THE
                 RESALE RESTRICTION TERMINATION DATE.

          THIS SECURITY IS SUBJECT TO A REGISTRATION RIGHTS AGREEMENT DATED
          APRIL 17, 1996 BETWEEN THE COMPANY AND NATWEST SECURITIES LIMITED, A
          COPY OF WHICH MAY BE OBTAINED FROM THE COMPANY OR THE TRUSTEE.]

                                      A-2
<PAGE>
 
                      VETERINARY CENTERS OF AMERICA, INC.
                    (Incorporated in the State of Delaware)
              5 1/4% CONVERTIBLE SUBORDINATED DEBENTURE DUE 2006
                                   CUSIP No.
                                U.S.$_________


     Veterinary Centers of America, Inc., a corporation duly incorporated and
existing under the laws of the State of Delaware (the "Company"), for value
received, hereby promises to pay to ________________________,or registered
assigns, the principal sum of ______________ United States dollars on May 1,
2006 upon presentation and surrender hereof and to pay interest thereon, from
the most recent Interest Payment Date (as defined below) to which interest has
been paid or duly provided for (or from April 17, 1996 if no interest has been
paid or duly provided for in respect of this Security), semiannually in arrears
on May 1 and November 1 in each year (each an "Interest Payment Date"),
commencing November 1, 1996, at the rate of 5 1/4% per annum until the principal
hereof is paid or made available for payment.  Interest hereon shall be
calculated on the basis of a 360-day year comprised of twelve 30-day months.
The interest so payable, and punctually paid or duly provided for, on any
Interest Payment Date will, as provided in the Indenture (as defined on the
reverse hereof), be paid to the person in whose name this Security is registered
at the close of business on the Interest Record Date for such interest payment,
which shall be April 15 or October 15 (whether or not a Business Day) next
preceding such Interest Payment Date.  To the extent lawful, the Company shall
pay interest on overdue principal and overdue installments of interest at the
rate borne by this Security, compounded semi-annually.  Except as otherwise
provided in the Indenture, any such interest not so punctually paid or duly
provided for will forthwith cease to be payable to the Holder on such Interest
Record Date and, together with Defaulted Interest relating thereto, may be paid
at any time in any lawful manner, all as more fully provided in the Indenture.
Payment of interest on this Security shall be made by United States dollar check
drawn on a bank in The City of New York and mailed to the person entitled
thereto at his address as it shall appear in the Security Register, or (if
arrangements satisfactory to the Company and the Trustee (as defined on the
reverse hereof) are made) by wire transfer to a United States dollar account
maintained by the payee with a bank in The City of New York; provided, however,
that if such mailing is not possible and no such application shall have been
made, payment of interest shall be made at the Principal Corporate Trust Office
of the Trustee (as defined in the Indenture referred to below), or such other
office or agency of the Company as may be designated for such purpose in The
City of New York, in United States currency.

     Reference is hereby made to the provisions of this Security set forth under
Terms and Conditions of the Securities on the reverse hereof, which further
provisions shall for all purposes have the same effect as if set forth at this
place.

     This Security shall not become valid or enforceable for any purpose unless
and until the certificate of authentication hereon shall have been manually
signed by a duly authorized officer of the Trustee.

                                      A-3
<PAGE>
 
     IN WITNESS WHEREOF, the Company has caused this Security to be duly
executed in its corporate name and under its corporate seal by the manual or
facsimile signature of a duly authorized signatory.

                                        VETERINARY CENTERS OF AMERICA, INC.


Dated:                                  By:__________________________
                                           Name:
                                           Title:

[Corporate Seal]



Attest: ____________________


CERTIFICATE OF AUTHENTICATION


This is one of the Securities described in the within mentioned Indenture.

               THE CHASE MANHATTAN BANK, N.A.,
                         as Trustee



               By:________________________________
                         Authorized Officer

Dated:

                                      A-4
<PAGE>
 
                       (FORM OF FACE OF BEARER SECURITY)

     ANY UNITED STATES PERSON WHO HOLDS THIS OBLIGATION WILL BE SUBJECT TO
LIMITATIONS UNDER THE UNITED STATES INCOME TAX LAWS, INCLUDING THE LIMITATIONS
PROVIDED IN SECTIONS 165(j) AND 1287(a) OF THE UNITED STATES INTERNAL REVENUE
CODE OF 1986, AS AMENDED.

                      VETERINARY CENTERS OF AMERICA, INC.
                    (Incorporated in the State of Delaware)
              5 1/4% CONVERTIBLE SUBORDINATED DEBENTURE DUE 2006
                               No. B __ U.S.$__

     Veterinary Centers of America, Inc., a corporation duly incorporated and
existing under the laws of the State of Delaware (the "Company"), for value
received, hereby promises to pay to bearer upon presentation and surrender of
this Security the principal sum of_____________________________ United States
dollars on May 1, 2006 upon presentation and surrender hereof and to pay
interest thereon, from April 17, 1996, semiannually in arrears on May 1 and
November 1 in each year (each an "Interest Payment Date"), commencing November
1, 1996, at the rate of 5 1/4% per annum until the principal hereof is paid or
made available for payment.  Interest hereon shall be calculated on the basis of
a 360-day year comprised of twelve 30-day months.  To the extent lawful, the
Company shall pay interest on overdue principal and overdue installments of
interest of the rate borne by this Security, compounded semi-annually.  Payments
in respect of this Security shall be made by United States dollar check, subject
to any laws or regulations applicable thereto and to the right of the Company
(limited as provided in the Indenture (as defined on the reverse hereof) to
terminate the appointment of any paying agency, at the London office of The
Chase Manhattan Bank, N.A. located at Woolgate House, Coleman Street, London
EC2P 2HD, England, or Chase Manhattan Bank Luxembourg S.A., 5 Rue Plaetis, L-
2338 Luxembourg, or at such other offices or agencies outside the United States
of America, its territories or its possessions as the Company may designate, by
United States dollar check drawn on a bank in The City of New York, or (if
arrangements satisfactory to the Company and the Trustee (as defined on the
reverse hereof are made) by wire transfer to a United States dollar account
maintained by the Holder at a bank outside the United States, its territories
and its possessions.  Interest on this Security shall be paid only at an office
or agency located outside the United States, its territories or its possessions
and, in the case of interest due on or before maturity, only upon presentation
and surrender at such an office or agency of the interest coupons hereto
attached as they severally mature.  No payment on this Security or any coupon
will be made at the Principal Corporate Trust Office of the Trustee (as defined
in the Indenture referred to below) or any other paying agency maintained by the
Company in the United States, nor will any payment be made by transfer to an
account in, or by mail to an address in, the United States, except as may be
permitted by United States tax laws and regulations in effect at the time of
such payment without detriment to the Company.  Notwithstanding the foregoing,
payment of this Security and coupons may be made at the office of the Trustee in
The City of New York if full payment at all paying agencies outside the United
States is illegal or effectively precluded by exchange controls or other similar
restrictions.

     Reference is hereby made to the further provisions of this Security set
forth under Terms and Conditions of the Securities on the reverse hereof, which
further provisions shall for all purposes have the same effect as if set forth
at this place.

     Neither this Security nor any of the coupons attached hereto shall become
valid or enforceable for any purpose unless and until the certificate of
authentication hereon shall have been manually signed by a duly authorized
officer of the Trustee.

                                      A-5
<PAGE>
 
     IN WITNESS WHEREOF, the Company has caused this Security to be duly
executed in its corporate name and under its corporate seal by the manual or
facsimile signature of a duly authorized officer and coupons bearing the
facsimile signature of a duly authorized signatory to be annexed hereto.


                                        VETERINARY CENTERS OF
                                        AMERICAN, INC.


Dated:
                                        By:___________________
                                           Name:
                                           Title:

[Corporate Seal]



Attest: ____________________


CERTIFICATE OF AUTHENTICATION


This is one of the Securities described in the within-mentioned Indenture.

               THE CHASE MANHATTAN BANK, N.A.,
                       as Trustee



               By:________________________________
                       Authorized Officer

Dated:

                                      A-6
<PAGE>
 
                 (FORM OF FACE OF COUPON ON BEARER SECURITIES)

     ANY UNITED STATES PERSON WHO HOLDS THIS OBLIGATION WILL BE SUBJECT TO
LIMITATIONS UNDER THE UNITED STATES INCOME TAX LAWS, INCLUDING THE LIMITATIONS
PROVIDED IN SECTIONS 165(j) AND 1287(a) OF THE UNITED STATES INTERNAL REVENUE
CODE OF 1986, AS AMENDED.

                      VETERINARY CENTERS OF AMERICA, INC.
                    (Incorporated in the State of Delaware)
              5 1/4% CONVERTIBLE SUBORDINATED DEBENTURE DUE 2006
                    No. ________ U.S. $______  Due ________

     Unless the Bearer Security to which this coupon appertains shall have been
called for redemption prior to the due date hereof (unless such date of
redemption is May 16, 1999) and payment thereof duly provided for or shall have
been converted, Veterinary Centers of America, Inc. (herein called the
"Company") shall, subject to and in accordance with the terms and conditions of
the Bearer Security and the Indenture dated as of April 17, 1996 between the
Company and The Chase Manhattan Bank, N.A., as Trustee, pay to the bearer, on
the date set forth herein upon surrender hereof, the amount shown hereon
(together with any Additional Amounts in respect hereof which the Company may be
required to pay according to the terms of said Bearer Security) at the paying
agencies set out on the reverse hereof or at such other places outside the
United States of America, its territories and its possessions as the Company may
determine from time to time, by United States dollar check drawn on a bank in
The City of New York, or (if arrangements satisfactory to the Company and the
Trustee are made) wire transfer to a United States dollar account maintained by
the bearer at a bank outside the United States of America, its territories and
its possessions, being one-half year's interest then payable on said Bearer
Security.

                                   VETERINARY CENTERS OF AMERICA, INC.



                                   By:__________________________________
                                      Name:
                                      Title:

Attest:

                                      A-7
<PAGE>
 
                              [Reverse of Coupon]

The Chase Manhattan Bank, N.A.          Chase Manhattan Bank
Woolgate House                                         5 Rue Plaetis
Coleman Street                                    L-2338 Luxembourg
London EC2P 2HD
ENGLAND

                                      A-8
<PAGE>
 
             (FORM OF REVERSE OF REGISTERED AND BEARER SECURITIES)

                    Terms and Conditions of the Securities

1.   General.

     (a)  This Security is one of a duly authorized issue of securities of the
Company designated as its 5 1/4% Convertible Subordinated Debentures due 2006
(herein called the "Securities"), limited in aggregate principal amount to U.S.
$92,000,000. The Company issued the Securities under an Indenture, dated as of
April 17, 1996 (the "Indenture"), between the Company and The Chase Manhattan
Bank, N.A., as trustee (the "Trustee"). Capitalized terms herein are used as
defined in the Indenture unless otherwise defined herein. The terms of the
Securities include those stated in the Indenture and those made part of the
Indenture by reference to the United States Trust Indenture Act of 1939, as
amended, as in effect on the date of the Indenture. The Securities are subject
to all such terms, and Holders of Securities are referred to the Indenture and
said Act for a statement of them. The Securities are unsecured obligations of
the Company.

     (b)  The Securities are issuable as bearer securities (the "Bearer
Securities"), without interest Coupons attached, in the denominations of
U.S.$1,000 and U.S.$10,000, and as registered securities (the "Registered
Securities"), without coupons, in denominations of U.S.$1,000 and integral
multiples thereof.  The Registered Securities, and transfers thereof, shall be
registered as provided in the Indenture.  The holder of any Bearer Security or
any Coupon and the registered holder of a Registered Security shall (to the
fullest extent permitted by applicable law) be treated at all times, by all
persons and for all purposes, except as provided in the Indenture, as the
absolute owner of such Security or Coupon, as the case may be, regardless of any
notice of ownership, theft or loss or of any writing thereon.

2.   Additional Amounts.

     The Company will pay, as additional interest ("Additional Amounts"), to the
Holder of this Security or of any Coupon appertaining hereto who is a United
States Alien (as defined below) such amounts as may be necessary in order that
every net payment of the principal of and premium, if any, and interest on this
Security and any cash payments made in lieu of issuing shares of Common Stock
upon conversion of this Security, after withholding for or on account of any
present or future tax, assessment or other governmental charge imposed upon or
as a result of such payment by the United States or any political subdivision or
taxing authority thereof or therein, will not be less than the interest provided
herein or any Coupon appertaining hereto to be then due and payable; provided,
however, that the foregoing obligation to pay Additional Amounts shall not apply
to any one or more of the following:

     (a)  any tax, assessment or other governmental charge which would not have
been so imposed but for (i) the existence of any present or former connection
between such Holder (or between a fiduciary, settlor, beneficiary, member or
stockholder of, or a person holding a power over, such Holder, if such Holder is
an estate, trust, partnership or corporation) and the United States, including,
without limitation, such Holder (or such fiduciary, settlor, beneficiary,
member, stockholder or person holding a power) being or having been a citizen or
resident or treated as a resident thereof or being or having been engaged in a
trade or business or being or having been present therein or having or having
had a permanent establishment therein, (ii) such Holder's present or former
status as a personal holding company, foreign personal holding company, passive
foreign investment company, foreign private foundation or other foreign tax-
exempt entity or controlled foreign corporation for United States federal income
tax purposes or a corporation which accumulates earnings to avoid United States
federal income tax, or (iii) such Holder's status as a bank extending credit
pursuant to a loan agreement entered into in the ordinary course of business;
 
                                      A-9
<PAGE>
 
     (b)  any tax, assessment or other governmental charge which would not have
been so imposed but for the presentation by the Holder of this Security or any
Coupon appertaining hereto for payment on a date more than 10 days after the
date on which such payment became due and payable or on the date on which
payment thereof is duly provided, whichever occurs later;

     (c)  any estate, inheritance, gift, sales, transfer or personal or
intangible property tax or any similar tax, assessment or other governmental
charge;

     (d)  any tax, assessment or other governmental charge which would not
have been imposed but for the failure to comply with certification, information,
documentation or other reporting requirements concerning the nationality,
residence, identity or present or former connection with the United States of
the Holder or beneficial owner of this Security or any related Coupon if such
compliance is required by statute, regulation or ruling of the United States or
any political subdivision or taxing authority thereof or therein as a
precondition to relief or exemption from such tax, assessment or other
governmental charge;

     (e)  any tax, assessment or other governmental charge which is payable
otherwise than by deduction or withholding from payments of principal of and
premium, if any, or interest on this Security;

     (f)  any tax, assessment or other governmental charge imposed on interest
received by a person holding, actually or constructively, 10% or more of the
total combined voting power of all classes of stock of the Company entitled to
vote; or

     (g)  any tax, assessment or other governmental charge required to be
withheld by any paying agent from any payment of principal of and premium, if
any, or interest on any Security or interest on any Coupon appertaining thereto
if such payment can be made without such withholding by any other paying agent;
nor shall Additional Amounts be paid with respect to any payment of the
principal of or premium, if any, or interest on this Security (or cash in lieu
of issuance of shares of Common Stock upon conversion) to a person other than
the sole beneficial owner of such payment or that is a partnership or fiduciary
to the extent such beneficial owner, member of such partnership or beneficiary
or settlor with respect to such fiduciary would not have been entitled to the
payment of Additional Amounts had such beneficial owner, member, beneficiary or
settlor been the holder of this Security or any Coupon appertaining hereto. The
term "United States Alien" means any person who, for United States federal
income tax purposes, is (i) a foreign corporation, (ii) a foreign partnership
one or more of the members of which are, for United States federal income tax
purposes, foreign corporations, non-resident alien individuals or non-resident
alien fiduciaries of a foreign estate or trust, (iii) a non-resident alien
individual or (iv) a non-resident alien fiduciary of a foreign estate or trust,
and the term "United States" means the United States of America (including the
several States and the District of Columbia), its territories, its possessions
and other areas subject to its jurisdiction. Except as specifically provided
herein and in the Indenture, the Company shall not be required to make any
payment with respect to any tax, assessment or other governmental charge imposed
by any government or any political subdivision or taxing authority thereof or
therein. Whenever any Additional Amounts are to be paid on the Securities, the
Company will give notice to the Trustee, the Paying Agent and any paying agency
of the Company, all as provided in the Indenture.

3.   Redemption.

     (a)  The Company, at its option, may redeem the Securities, in whole or in
part (but if in part, in aggregate principal amounts of no less than $1,000), at
any time or times on and after May 16, 1999, upon notice as hereinafter
prescribed, at a redemption price equal to 103% of their principal amount if
redeemed during the 12-month period commencing May 16, 1999, 102% of their
principal amount if redeemed during the 12-month period commencing May 16, 2000,
101% of their principal amount if redeemed during the 12-month period commencing
May 16, 2001, and 100% of their principal amount if redeemed on or after May 16,
2002, in each case together with accrued and unpaid interest to the date fixed
for redemption. If fewer

                                     A-10
<PAGE>
 
than all of the then outstanding Securities are to be redeemed, the Securities
to be redeemed will be selected by the Trustee not more than 75 days prior to
the date fixed for redemption, by such method as the Trustee shall deem fair and
appropriate.  Provisions of this Security that apply to Securities called for
redemption also apply to portions of Securities called for redemption.  The
Trustee shall notify the Company promptly of the Securities or portions of
Securities to be called for redemption.

     (b)  If, at any time, the Company shall determine that as a result of any
change in or amendment to the laws (or any regulations or rulings promulgated
thereunder) of the United States or any political subdivision or taxing
authority thereof or therein affecting taxation, or any amendment to or change
in an official application or interpretation of such laws, regulations or
rulings which change or amendment becomes effective on or after April 17, 1996
the Company has or will become obligated to pay to the holder of any Security or
Coupon Additional Amounts and such obligation cannot be avoided by the Company
taking reasonable measures available to it, then the Company may, as its
election exercised at any time when such conditions continue to exist, redeem
such Securities as a whole but not in part, upon notice as hereinafter
prescribed, at a redemption price equal to 100% of the principal amount,
together with accrued interest, if any, to the date fixed for redemption;
provided that no such notice of redemption shall be given earlier than 90 days
prior to the earliest date on which the Company would be obligated to pay such
Additional Amounts were a payment in respect of such Securities then due; and
provided further, that at the time such notice is given, such obligation to pay
such Additional Amounts remains in effect. Prior to any redemption of the
Securities pursuant to the preceding paragraph, the Company shall provide the
Trustee with one or more certificates (signed by the President or any Vice
President and the Treasurer or the Secretary) of the Company on which the
Trustee may conclusively rely to the effect that the Company is entitled to
redeem such Securities pursuant to such paragraph and that the conditions
precedent to the right of the Company to redeem such Securities pursuant to such
paragraph have occurred and a written Opinion of Counsel (who may be an employee
of the Company) stating that all legal conditions precedent to the right of the
Company to redeem such Securities pursuant to such paragraph have occurred.

     (c)  The Company shall, except as set forth in the next succeeding
paragraph, redeem the Bearer Securities as a whole but not in part, upon notice
as hereinafter prescribed, at 100% of their principal amount, together with
interest accrued and unpaid to the date fixed for redemption, less applicable
withholding taxes, if any, plus any applicable Additional Amounts payable, after
the Company determines, based on a written Opinion of Counsel, that any
certification, identification or information reporting requirement of any
present or future United States law or regulation with regard to the
nationality, residence or identity of a beneficial owner of a Bearer Security or
a Coupon appertaining thereto who is a United States Alien would be applicable
to a payment of principal of or interest on a Bearer Security or a Coupon
appertaining thereto made outside the United States by the Company or a paying
agent (other than a requirement (i) which would not be applicable to a payment
made by the Company or any one of its paying agents (A) directly to the
beneficial owner or (B) to a custodian, nominee or other agent of the beneficial
owner, or (ii) which could be satisfied by the Holder, custodian, nominee or
other agent certifying that the beneficial owner is a United States Alien,
provided, however, in each case referred to in clauses (i)(B) and (ii) payment
by such custodian, nominee or agent of the beneficial owner is not otherwise
subject to any requirement referred to in this sentence).  The Company shall
make such determination and will notify the Trustee thereof in writing as soon
as practicable, stating in the notice the effective date of such certification,
identification, or information reporting requirement and the dates within which
the redemption shall occur, and the Trustee shall give prompt notice thereof in
accordance with the Indenture.  The Company shall determine the Redemption Date
by notice to the Trustee at least 75 days before the Redemption Date, unless
shorter is acceptable to the Trustee.  Such redemption of the Securities must
take place on such date, not later than one year after the publication of the
initial notice of the Company's determination of the existence of such
certification, identification or information reporting requirement.  The Company
shall not so redeem the Bearer Securities, however, if the Company shall, based
on a subsequent event, determine, based on a written Opinion of Counsel (who
shall not be an employee of the Company), not less than 30 days prior to the
date fixed for redemption, that no such payment would be subject to any
requirement

                                     A-11
<PAGE>
 
described above, in which case the Company shall notify the Trustee, which shall
give prompt notice of that determination in accordance with the Indenture and
any earlier redemption notice shall thereupon be revoked and of no further
effect.

          Notwithstanding the preceding paragraph, if and so long as the
certification, identification or information reporting requirement referred to
in the preceding paragraph would be fully satisfied by payment of United States
withholding, backup withholding or similar taxes, the Company may elect, prior
to the giving of the notice of redemption, to have the provisions of this
paragraph apply in lieu of the provisions of the preceding paragraph.  In that
event, the Company will pay such Additional Amounts (without regard to Section 2
hereof) as are necessary in order that, following the effective date of such
requirements, every net payment made outside the United States by the Company or
a paying agent of the principal of and interest on a Bearer Security or a Coupon
appertaining thereto to a Holder who is a United States Alien (without regard to
a certification, identification or information reporting requirement as to the
nationality, residence or identity of such Holder), after deduction for United
States withholding, backup withholding or similar taxes (other than withholding,
backup withholding or similar taxes (i) which would not be applicable in the
circumstances referred to in the parenthetical clauses of the first sentence of
the next preceding paragraph or (ii) are imposed as a result of presentation of
such Bearer Security or Coupon for payment more than 10 days after the date on
which such payment becomes due and payable or on which payment thereof is duly
provided for, whichever is later), will not be less than the amount provided in
the Bearer Security or the Coupon to be then due and payable.  If the Company
elects to pay such Additional Amounts and as long as it is obligated to pay such
Additional Amounts, the Company may subsequently redeem the Bearer Securities,
at any time, in whole but not in part, upon not more than 60 days nor less than
30 days notice, given as hereinafter prescribed, at 100% of their principal
amount, plus accrued interest to the date fixed for redemption and Additional
Amounts, if any.

          (d)  If there shall occur a Change of Control (as defined in the
Indenture) with respect to the Company, then the Holder of this Security shall
have the right, at such Holder's option, exercised in accordance with this
Section 3(d), to require the Company to purchase this Security, in whole but not
in part, on the Holder Redemption Date at a Redemption Price equal to 100% of
the principal amount, together with accrued interest to the Holder Redemption
Date.

          Notwithstanding the fact that a Security is called for redemption by
the Company otherwise than pursuant to this Section 3(d), each Holder of a
Security desiring to exercise the option for redemption set forth in this
Section 3(d) shall, as a condition to such redemption, on or before the close of
business on the fifth Business Day prior to the Holder Redemption Date,
surrender the Security to be redeemed (together with all unmatured Coupons, if
applicable), in whole but not in part, together with the Redemption Notice
hereon duly executed at the place or places specified in the notice required by
Section 3(e) and otherwise comply with the provisions of Section 3(f).  A Holder
of a Security who has tendered a Redemption Notice (i) will be entitled to
revoke its election by delivering a written notice of such revocation together
with the Holder's non-transferable receipt for such Security to the office or
agency of the Company designated as the place for the payment of the Securities
to be so redeemed on or before the Holder Redemption Date and (ii) will retain
the right to convert its Securities into shares of Common Stock of the Company
on or before the close of business on the fifth day (or if such day is not a
Business Day, or the next succeeding Business Day) next preceding the Holder
Redemption Date.  In connection with any repurchase of Securities pursuant to
this Section 3(d), the Company will comply with any applicable rules and
regulations promulgated by the U.S. Securities and Exchange Commission and
nothing herein, including the time periods in which redemption is to occur,
shall require the Company to take action which violates such applicable rules
and regulations.

          (e)  Notice of any redemption or notice in connection with a Change of
Control will be given in accordance with Section 3.1 of the Indenture.

                                     A-12
<PAGE>
 
          (f)  If (i) notice of redemption has been given in the manner set
forth in Section 3.1 of the Indenture with respect to Securities to be redeemed
at the option of the Company, or (ii) notice of redemption has been given by the
Holder of a Security to be redeemed pursuant to Section 3(d) hereof, the
Securities so to be redeemed shall become due and payable on the applicable
Redemption Date specified in such notice and upon presentation and surrender of
the Securities at the place or places specified in the notice given by the
Company with respect to such redemption, together in the case of Bearer
Securities with all appurtenant Coupons, if any, maturing subsequent to the
Redemption Date, the Securities shall be paid and redeemed by the Company, at
the places and in the manner and currency herein specified and at the Redemption
Price together with accrued interest, if any, to the Redemption Date; provided,
however, that interest due in respect of Coupons maturing on or prior to the
Redemption Date shall be payable only upon the presentation and surrender of
such Coupons (at an office or agency located outside of the United States of
America). If any Bearer Security surrender for redemption shall be accompanied
by all appurtenant Coupons maturing after the Redemption Date, such Security may
be paid after deducting from the amount otherwise payable an amount equal to the
face amount of all such missing Coupons, or the surrender of such missing Coupon
or Coupons may be waived by the Company and the Trustee if they are furnished
with such security or indemnity as they may require to save each of them and
each other paying agency of the Company harmless. From and after the Redemption
Date, if monies for the redemption of Securities shall have been available at
the principal corporate trust office of the Trustee for redemption on the
Redemption Date, the Securities shall cease to bear interest, the Coupons for
interest appertaining to Bearer Securities maturing subsequent to the Redemption
Date shall be void, and the only right of the holders of such Securities shall
be to receive payment of the Redemption Price together with accrued interest to
the Redemption Date. If monies for the redemption of the Securities are not made
available by the Company for payment until after the Redemption Date, the
Securities shall not cease to bear interest until such monies have been so made
available.

4.        Conversion.

          (a)  Subject to and upon compliance with the provisions of the
Indenture, a holder of Securities is entitled, at its option, at any time on and
after the Exchange Date and prior to the close of business on May 1, 2006 to
convert such Security (or any portion of the principal amount thereof which is
U.S.$1,000 or an integral multiple thereof), at the principal amount thereof, or
of such portion, into fully paid and nonassessable shares ("Conversion Shares")
of common stock, par value $0.001 per share ("Common Stock"), of the Company
(calculated as to each conversion to the nearest 1/1000 of a share) at a
Conversion Price equal to U.S. $34.35 aggregate principal amount of Securities
for each Conversion Share (the "Conversion Price") (or at the current adjusted
Conversion Price if an adjustment has been made as provided herein) by surrender
of the Security, together with (i) if a Bearer Security, all unmatured Coupons
(except that any Bearer Security called for redemption on May 16, 1999 need not
be delivered with the Coupon that matures on that date) and any matured Coupons
in default appertaining thereto, or (ii) if a Registered Security (if so
required by the Company or the Trustee), instruments of transfer in form
satisfactory to the Company and the Trustee, duly executed by the registered
holder or by his duly authorized attorney, and, in either case, (iii) the
Conversion Notice hereon duly executed (x) at the Principal Corporate Trust
Office of the Trustee, or at such other office or agency of the Company as may
be designated by it for such purpose in the City of New York, or (y) subject to
any laws or regulations applicable thereto and subject to the right of the
Company to terminate the appointment of any such conversion agency, at the
London office of The Chase Manhattan Bank, N.A. located at Woolgate House,
Coleman Street, London EC2P 2HD, England and Chase Manhattan Bank, Luxembourg
S.A., 5 Rue Plaetis, L-2338 Luxembourg, or at such other offices or agencies as
the Company may designate; provided, however, that if any Security or a portion
thereof is called for redemption by the Company, or the holder thereof elects to
have such Security redeemed in whole by the Company pursuant to Section 3(d)
hereof, then in respect of such Security (or, in the case of partial redemption
by the Company, such portion thereof) the right to convert such Security (or, in
the case of partial redemption by the Company, such portion thereof) shall
expire (unless the Company defaults in making the payment due upon redemption)
at the close of business on the fifth day (or if such date is not a Business
Day, on the next succeeding Business Day) next preceding the Redemption Date or
the Holder

                                     A-13
<PAGE>
 
Redemption Date (unless in the latter case the holder shall have first revoke
his redemption election in accordance with Section 3(d) hereof).

          (b)  In the case of any Registered Security which is converted after
any Interest Record Date and on or prior to the next succeeding Interest Payment
Date, interest that is payable on such Interest Payment Date shall be payable on
such Interest Payment Date notwithstanding such conversion, and such interest
shall be paid to the person in whose name that Registered Security is registered
at the close of business on such Interest Record Date.  Except as otherwise
provided in the immediately preceding sentence and in the parenthetical clause
in Section 4(a)(i) above, no payment or adjustment shall be made upon any
conversion on account of any interest accrued on the Securities surrendered for
conversion or on account of any dividends or distributions on the Conversion
Shares issued upon conversion.  Registered Securities surrendered for conversion
during the period after the close of business on any Interest Record Date next
preceding any Interest Payment Date to the close of business on such Interest
Payment Date shall (except in the case of Registered Securities or portions
thereof which are called for redemption on May 16, 1999) be accompanied by
payment of an amount equal to the interest payable on such Interest Payment Date
on the principal amount being surrendered for conversion.  No fractions of
shares or script representing fractions of shares will be issued or delivered on
conversion, but instead of any fractional interest the Company shall pay a cash
adjustment as provided in the Indenture.

          (c)  (i) In case at any time the Company shall pay or make a stock
dividend or other distribution on any class of capital stock of the Company in
shares of Common Stock, the Conversion Price in effect at the opening of
business on the day following the date fixed for the determination of
stockholders entitled to receive such dividend or other distribution shall be
reduced so that the same shall equal the price determined by multiplying such
Conversion Price by a fraction of which the numerator shall be the number of
shares of Common Stock outstanding at the close of business on the date fixed
for such determination and the denominator shall be the sum of such number of
shares and the total number of shares of Common Stock constituting such dividend
or other distribution, such adjustment to become effective immediately after the
opening of business on the day following the date fixed for such determination;
and in the event that such dividend or other distribution is not so made, or is
made in part, the Conversion Price shall again be adjusted to be the Conversion
Price which would then be in effect (i) if such record date has not been fixed
or (ii) based on the actual number of shares actually issued, as the case may
be.

          (ii) In case at any time the Company shall (A) subdivide its
outstanding shares of Common Stock into a greater number of shares, (B) combine
its outstanding shares of Common Stock into a smaller number of shares, or (C)
issue by reclassification of its shares of Common Stock (including any such
reclassification in connection with a consolidation or merger in which the
Company is the continuing corporation) any shares of capital stock, the
Conversion Price in effect at the effective date of such subdivision,
combination or reclassification shall be proportionately adjusted so that the
holder of any Security surrendered for conversion after such time shall be
entitled to receive the aggregate number and kind of shares which, if such
Security had been converted immediately prior to such time, he would have owned
upon such conversion and been entitled to receive upon such subdivision,
combination or reclassification.  Such adjustment shall become effective
immediately after the effective date of such subdivision, combination or
reclassification.  Such adjustment shall be made successively whenever any event
listed above shall occur.

          (iii) In case at any time the Company shall fix a record date for the
issuance of rights, options or warrants to all holders of its Common Stock
entitling them to subscribe for or purchase Common Stock (or securities
convertible into Common Stock) at a price per share less than the Current Market
Price per share of Common Stock on such record date, the Conversion Price in
effect at the opening of business on the day following such record date shall be
reduced so that the same shall equal the price determined by multiplying such
Conversion Price by a fraction of which the numerator shall be the number of
shares of Common Stock outstanding at the close of business on such record date
plus the number of shares of Common Stock (or its equivalent) which the
aggregate of the offering price of the total number of shares so offered for

                                     A-14
<PAGE>
 
subscription or purchase would purchase at such Current Market Price per share
of Common Stock and the denominator shall be the number of shares of Common
Stock outstanding at the close of business on such record date plus the number
of shares of Common Stock (or its equivalent) so offered for subscription or
purchase, such reduction to become effective immediately after the opening of
business on the day following such record date; provided, however, that no
adjustment to the Conversion Price shall be made pursuant to this Section
4(c)(iii) if the holders of Securities receive, or are entitled to receive upon
conversion or otherwise, the same rights, options or warrants as are issued to
the holders of Common Stock, on the same terms and conditions as such rights,
options or warrants are so issued to the holders of Common Stock.  Such
reduction shall be made successively whenever such a record date is fixed; and
in the event that such rights, options or warrants are not so issued, or are
issued in part, or are issued but all or part of which expire unexercised, the
Conversion Price shall again be adjusted to be the Conversion Price which would
then be in effect (i) if such record date had not been fixed or (ii) based on
the actual number of rights, options or warrants actually issued, as the case
may be.

          (iv) In case at any time the Company shall fix a record date for the
making of a distribution, by dividend or otherwise, to all holders of its shares
of Common Stock, of evidences of its indebtedness or assets (including
securities, but excluding (x) any dividend or distribution referred to in
paragraph (i) of this subsection (c) and any rights, options or warrants
referred to in paragraph (iii) of this subsection (c), and (y) any dividend,
return of capital or distribution paid in cash out of the retained earnings of
the Company and regular quarterly dividends consistent with past practice ),
then in each such case the Conversion Price in effect after such record date
shall be determined by multiplying the Conversion Price in effect immediately
prior to such record date by a fraction, of which the numerator shall be the
total number of outstanding shares of Common Stock multiplied by the Current
Market Price per share of Common Stock on such record date, less the fair market
value (as determined by a Board Resolution, whose determination shall be
conclusive and described in a statement filed with the Trustee) of the portion
of the assets or evidences of indebtedness so to be distributed, and of which
the denominator shall be the total number of outstanding shares of Common Stock
multiplied by such Current Market Price per share of Common Stock.  Such
adjustment shall be made successively whenever such a record date is fixed and
shall become effective immediately after the record date for the determination
of stockholders entitled to receive the distribution; and in the event that such
distribution is not so made, the Conversion Price shall again be adjusted to be
the Conversion Price which would then be in effect if such record date has not
been fixed.

          (v)  The Company may make such downward adjustments in the Conversion
Price, in addition to those required by paragraphs (i), (ii), (iii) and (iv) of
this section, as it considers to be advisable in order that any event treated
for United States federal income tax purposes as a dividend of stock or stock
rights shall not be taxable to the recipients.

          (vi) No adjustment in the Conversion Price shall be required unless
such adjustment would require an increase or decrease of at least U.S.$0.25 in
such Conversion Price; provided, however, that any adjustment which by reason of
this paragraph (vi) is not required to be made shall be carried forward and
taken into account in any subsequent adjustment.  All calculations under this
subsection (c) shall be made to the nearest cent or to the nearest 1/1000 of a
share, as the case may be.

          (d)  Whenever the Conversion Price is adjusted and in the event of
certain other corporate actions, as herein provided, the Company shall give
notice, all as provided in the Indenture.

          (e)  The Company shall use its reasonable best efforts to cause all
registrations with, and to obtain any approvals by, any governmental authority
under any federal or state law of the United States that may be required before
the Conversion Shares (or other securities issuable upon conversion of the
Securities) may be lawfully issued or transferred and delivered.

5.        Transfer and Exchange of Securities.

                                     A-15
<PAGE>
 
          (a)  Title to Bearer Securities and Coupons shall pass by delivery. As
provided in the Indenture and subject to certain limitations therein set forth,
the transfer of Registered Securities is registrable on the Security Register
upon surrender of a Registered Security for registration of transfer at the
office or agency of the Trustee in The City of New York, or, subject to
applicable laws and regulations, at the office of the paying agency in
Luxembourg, duly endorsed by, or accompanied by a written instrument of transfer
in the form satisfactory to the Company and the Security Registrar duly executed
by, the holder thereof or his attorney duly authorized in writing, and thereupon
one or more new Registered Securities, of authorized denominations and for the
same aggregate principal amount, will be issued to the designated transferee or
transferees.

          (b)  As provided in the Indenture and subject to certain limitations
therein set forth, Bearer Securities (with all unmatured Coupons appertaining
thereto) are exchangeable at, subject to applicable laws and regulations, the
offices of the paying agencies in London and Luxembourg or as designated by the
Company for such purpose pursuant to the Indenture, for an equal aggregate
principal amount of Registered Securities and/or Bearer Securities of authorized
denominations, and Registered Securities are exchangeable at the principal
corporate trust office of the Trustee in The City of New York or, subject to
applicable laws and regulations, the offices of the paying agencies in London
and Luxembourg or as designated by the Company for such purpose pursuant to the
Indenture, for an equal aggregate principal amount of Registered Securities of
authorized denominations as requested by the Holder surrendering the same.
Registered Securities will not be exchangeable for Bearer Securities.  The
Company shall not be required (i) to exchange Bearer Securities for Registered
Securities during the period between the close of business on any Interest
Record Date and the opening of business on the next succeeding Interest Payment
Date, (ii) to exchange any Bearer Security (or portion thereof) for a Registered
Security if the Company shall determine and inform the Trustee in writing that,
as a result thereof, the Company may incur adverse consequences under the
federal income tax laws and regulations (including proposed regulations) of the
United States in effect or proposed at the time of such exchange, or (iii) in
the event of a redemption in part, (A) to register the transfer of Registered
Securities or to exchange Bearer Securities for Registered Securities during a
period of 15 days immediately preceding the date notice is given identifying the
serial numbers of the Securities called for such redemption; (B) to register the
transfer of or exchange any such Registered Securities, or portion thereof,
called for redemption; or (C) to exchange any such Bearer Securities called for
redemption; provided, however, that a Bearer Security called for redemption may
be exchanged for a Registered Security which is simultaneously surrendered, with
written instruction for payment on the Redemption Date, unless the Redemption
Date is during the period between the close of business on any Interest Record
Date and the close of business on the next succeeding Interest Payment Date, in
which case such exchange may only be made prior to the close of business on the
Interest Record Date immediately preceding the Redemption Date.  The Company
also shall not be required to exchange Securities if, as a result thereof, the
Company would incur adverse consequences under United States federal income tax
laws in effect at the time of such exchange.  In the event of redemption or
conversion of a Registered Security in party only, a new Registered Security or
Securities for the unredeemed or unconverted portion hereof will be issued in
the name of the holder thereof.

          (c)  The costs and expenses of effecting any exchange or registration
of transfer pursuant to the foregoing provisions, except for the expenses of
delivery (if any) by other than regular mail and except, if the Company shall so
require, the payment of a sum sufficient to cover any tax or other governmental
charge or insurance charges that may be imposed in relation thereto, will be
borne by the Company.

          (d)  The Company has initially appointed the Trustee as registrar,
transfer agent, paying agent and conversion agent acting through the Trustee's
principal corporate trust office in The City of New York and its agents in
London.  The Company has also initially appointed Chase Manhattan Bank
Luxembourg S.A. as a transfer agent, paying agent and conversion agent.  The
Company may at any time terminate the appointment of the registrar and such
agents and appoint additional or other registrars and agents or approve any
change in an office through which the registrar or any agent acts; provided
that, until all of the Securities have been delivered to the Trustee for
cancellation, or monies sufficient to pay the Securities have 

                                     A-16
<PAGE>
 
been made available for payment and either paid or returned to the Company as
provided in the Securities and the Indenture, the Company will maintain a paying
agent and a conversion agent (i) in The City of New York in the United States
for the payment of the principal and interest on Registered Securities and for
the surrender of Securities for conversion or redemption and (ii) in a European
city that, so long as the Securities are listed on the Luxembourg Stock Exchange
and such exchange shall so require, shall be Luxembourg, for the payment of the
principal and interest on Securities and for the surrender of Securities for
conversion or redemption.

6.        Meetings of Holders.

          A meeting of Holders of Securities may be called at any time and from
time to time in the manner and for the purposes set forth in the Indenture.  The
Trustee may at any time call a meeting of Holders of the Securities to be held
at such time and at such place in any of such designated locations as the
Trustee shall determine.  Notice of every meeting of Holders shall be made as
specified in the Indenture.

7.        Amendment; Supplement; Waiver.

          Subject to certain exceptions, the Indenture or the Securities may be
amended or supplemented, and any existing Default or Event of Default or
compliance with any provision may be waived, with the written consent of the
Holders of a majority in aggregate principal amount of the Securities then
outstanding.  Without notice to or consent of any Holder, the parties thereto
may amend or supplement the Indenture or the Securities to, among other things,
cure any ambiguity, defect or inconsistency, or make any other change that does
not adversely affect the rights of any Holder of a Security.

8.        Subordination.

          Payment of principal, premium, if any, interest on and Additional
Amounts with respect to the Securities is subordinated, in the manner and to the
extent set forth in the Indenture, to the prior payment in full of all Senior
Indebtedness.

9.        Successors.

          Except as otherwise provided in the Indenture, when a successor
assumes all the obligations of its predecessor under the Securities and the
Indenture, the predecessor will be released from those obligations.

10.       Defaults and Remedies.

          If an Event of Default occurs and is continuing (other than an Event
of Default relating to certain events of bankruptcy, insolvency or
reorganization in which events all principal, accrued interest and Additional
Amounts, if any, with respect to the Securities will be immediately due and
payable without any declaration or other act on the part of the Trustee or the
Holders), then in every such case, unless the principal of all of the Securities
shall have already become due and payable, either the Trustee or the Holders of
25% in aggregate principal amount of Securities then outstanding may declare all
the Securities to be due and payable immediately in the manner and with the
effect provided in the Indenture.  Holders of Securities may not enforce the
Indenture or the Securities except as provided in the Indenture.  The Trustee
may require indemnity satisfactory to it before it enforces the Indenture or the
Securities.  Subject to certain limitations, Holders of a majority in aggregate
principal amount of the Securities then outstanding may direct the Trustee in
its exercise of any trust or power.  The Trustee may withhold from Holders of
Securities notice of any continuing Default or Event of Default (except a
Default in payment of principal, interest or Additional Amounts), if it
determines that withholding notice is in their interest.

11.       No Recourse Against Others.

                                     A-17
<PAGE>
 
          No stockholder, director, officer or employee, as such, past, present
or future, of the Company or any successor corporation shall have any personal
liability in respect of the obligations of the Company under the Securities or
the Indenture by reason of his, her or its status as such stockholder, director,
officer or employee.  Each Holder of a Security by accepting a Security waives
and releases all such liability.  The waiver and release are part of the
consideration for the issuance of the Securities.

12.       Non-Business Days.

          In any case where the date of maturity of the principal of or interest
on (or Additional Amounts, if any, with respect thereto) the Securities or the
date fixed for redemption of any Security shall be at any place of payment a day
other than a Business Day, then payment of principal or interest (or Additional
Amounts, if any) need not be made on such date at such place but may be made on
the next succeeding Business Day at such place of payment, with the same force
and effect as if made on the date of maturity or the date fixed for redemption,
and no interest shall accrue for the period after such date.

13.       Notices.

          All notices to the Holders of Securities will be published on a
Business Day in Authorized Newspapers in The City of New York and in London,
and, as long as the Securities are listed on the Luxembourg Stock Exchange, in
an Authorized Newspaper in Luxembourg, or, if either publication in London or
Luxembourg is not practical, in an Authorized Newspaper in Western Europe.
Notices shall be deemed to have been given on the date of publication as
aforesaid or, if published on different dates, on the date of the first such
publication.  A copy of each notice will be mailed by the Trustee, on behalf of
and at the expense of the Company, by first-class mail to each holder of a
Registered Security at the registered address of such holder as the same shall
appear in the Security Register on the day fifteen days prior to such mailing.
The Trustee shall promptly furnish to the Company, the Paying Agent and to each
other paying agency of the Company a copy of each notice so published or mailed.

14.       Governing Law.

          (a)  The Indenture, this Security and any coupons appertaining hereto
shall be governed by and construed in accordance with the laws of the State of
New York, United States of America, without regard to principles of conflicts of
laws.

          (b)  The Company has appointed the Trustee as its agent upon whom
process may be served in any legal action or proceeding relating to or arising
out of this Security, the Indenture or any Coupon appertaining hereto.

15.       Authentication.

          This Security and any Coupon appertaining thereto shall not become
valid or obligatory for any purpose until the certificate of authentication
hereon shall have been duly signed by the Trustee or an authenticating agent
acting under the Indenture.

16.       Warranty of the Issuer.

          Subject to Section 15 hereof, the Company hereby certifies and
warrants that all acts, conditions and things required to be done and performed
and to have happened precedent to the creation and issuance of this Security and
any Coupons appertaining thereto, and to constitute the same legal, valid and
binding obligations of the Company enforceable in accordance with their terms,
have been done and performed and have happened in due and strict compliance with
all applicable laws.

17.       Status as United States Real Property Holding Corporation.

                                     A-18
<PAGE>
 
          To the best of its knowledge, as of the date of the issuance of this
Security, the Company is not a "United States real property holding corporation"
as defined in Section 897(c)(2) of the United States Internal Revenue Code of
1986, as amended (the "Code").  A non-United States person disposing of this
Security may request from the Company a statement as to whether this Security
constitutes a "United States real property interest" (as defined in Code Section
897(c)(1)) as of the date of disposition.  It may be necessary to obtain a
statement that this Security does not constitute a "United States real property
interest" prior to the time that a tax return would otherwise be required to be
filed with the United States Internal Revenue Service with respect to such
disposition in order to avoid a withholding tax on such disposition.  If, at any
time while this Security is outstanding, the Company determines that it is at
such time a "United States real property holding corporation", it shall provide
notice of such determination in accordance with the provisions of Section 13
hereof.  The Holder of this Security can contact the Company at 3420 Ocean Park
Boulevard, Suite 1000, Santa Monica, California 90405 to obtain information as
to the United States income tax consequences of the classification of the
Company as a "United States real property holding corporation."

18.       Abbreviations and Defined Terms.

          Customary abbreviations may be used in the name of a Holder of a
Security or an assignee, such as: TEN COM (= tenants in common), TEN ENT (=
tenants by the entireties), JT TEN (= joint tenants with right of survivorship
and not as tenants in common), CUST (= Custodian), and U/G/M/A (= Uniform Gifts
to Minors Act).

19.       CUSIP Numbers.

          Pursuant to a recommendation promulgated by the Committee on Uniform
Security Identification Procedures, the Company will cause CUSIP numbers to be
printed on the Securities as a convenience to the Holders of the Securities.  No
representation is made as to the accuracy of such numbers as printed on the
Securities and reliance may be placed only on the other identification numbers
printed hereon.

20.       Additional Rights of Holders of Restricted Securities.

          In addition to the rights provided to Holders of Securities under the
Indenture, Holders of Restricted Securities shall have all the rights set forth
in the Registration Rights Agreement.

21.       Accounting Terms.

          All accounting terms not otherwise defined herein shall have the
meanings assigned to them in accordance with generally accepted accounting
principles as applied in the United States.

22.       Descriptive Headings:

          The descriptive headings appearing herein are for convenience of
reference only and shall not alter, limit or define the provisions hereof. The
Company will furnish to any Holder upon written request and without charge a
copy of the Indenture and/or the Registration Rights Agreement.

                    Request may be made to:
                    Veterinary Centers of America, Inc.
                    3420 Ocean Park Boulevard, Suite 1000
                    Santa Monica, California 90405
                    Attention:  Secretary

                                     A-19
<PAGE>
 
               TRANSFER NOTICE FOR VALUE RECEIVED, the undersigned Holder hereby
sell(s), assign(s) and transfer(s) unto ___________________________ whose
taxpayer identification number is ________________ and whose address including
postal/ZIP code is ____________________________________________________the
within Security and all rights thereunder, hereby irrevocably constituting and
appointing ____________________________________________________________
attorney-in-fact to transfer said Security on the books of the Company with full
power of substitution in the premises.  Only if a Restricted Security:  In
connection with the transfer of this Security, the undersigned certifies that
(check one):


[_]       (a)  This Security is being transferred to a "qualified institutional
               buyer" (as defined in Rule 144A under the United States
               Securities Act of 1933, as amended (the "Securities Act")) in
               compliance with the exemption from registration under the
               Securities Act of 1933 provided by Rule 144A thereunder.

[_]       (b)  This Security is being transferred in an Offshore Transaction (as
               defined in Regulation S under the Securities Act) in compliance
               with the exemption from registration under the Securities Act
               provided by Regulation S thereunder.


[_]       (c)  This Security is being transferred in a transaction arranged by a
               broker or dealer registered under the United States Securities
               Exchange Act of 1934, as amended (the "Exchange Act"), to an
               institutional "accredited investor" (within the meaning of Rule
               501(a)(1), (2), (3) or (7) under the Securities Act) in a
               transaction not involving any general solicitation or general
               advertising and in connection with which transfer the Company has
               received, if it has so requested, an opinion of counsel
               (satisfactory to it in form and substance) to the effect that the
               transfer is being made pursuant to an exemption from the
               registration requirements of the Securities Act.

[_]       (d)  This Security is being transferred to Veterinary Centers of
               America, Inc..

[_]       (e)  In connection with a transfer, other than those above, as to
               which the Company has received an opinion of counsel
               (satisfactory to it in form and substance) to the effect that the
               transfer is being made pursuant to an exemption from, or in a
               transaction not subject to, the registration requirements of the
               Securities Act.

[_]       (f)  This Security is being exchanged for a beneficial interest in the
               Rule 144A Global Security and the undersigned is a "qualified
               institutional buyer" (as defined in Rule 144A under the
               Securities Act).

Dated:                        Name:

                              By:______________________
                                 Name:
                                 Title:

NOTICE:  The signature of the Holder to this assignment must correspond with the
name as written upon the face of the within instrument in every particular,
without enlargement or any change whatsoever.

                              SIGNATURE GUARANTEED

                                     A-20
<PAGE>
 
               TO BE COMPLETED BY A BROKER OR DEALER IF (c) ABOVE IS CHECKED:
The undersigned represents and warrants that (i) it is a broker or dealer
registered under Section 15 of the Exchange Act, (ii) each person which will
become a beneficial owner of this Security upon transfer is an institutional
investor which is an "accredited investor" (within the meaning of Rule
501(a)(1), (2), (3) or (7) under the Securities Act); (iii) no general
solicitation or general advertising was made or used by it in connection with
the offer and sale of this Security to such person(s); and (iv) each such person
has been notified that this Security has not been registered under the
Securities Act and is subject to the restrictions on transfer of the Security
set forth herein and in the Indenture.

Dated:                        By:__________________________
                                 Name:
                                 Title:

          IF NONE OF THE FOREGOING BOXES IS CHECKED, THE TRUSTEE SHALL NOT BE
OBLIGATED TO REGISTER THE TRANSFER OF THIS SECURITY UNLESS AND UNTIL THE
CONDITIONS TO ANY SUCH TRANSFER OF REGISTRATION SET FORTH HEREIN, ON THE FACE
HEREOF AND IN THE INDENTURE SHALL HAVE BEEN SATISFIED.

                                     A-21
<PAGE>
 
                               CONVERSION NOTICE

          If (i) Registered Security of denomination U.S.$1,000 or (ii) Bearer
Security of denomination U.S.$1,000:

          The undersigned holder of this Security hereby irrevocably exercises
the option to convert this Security into shares of Common Stock of Veterinary
Centers of America, Inc. in accordance with the terms of this Security and
directs that such shares be registered in the name of and delivered, together
with a check in payment for any fractional share, to the undersigned unless a
different name has been indicated below. If shares are to be registered in the
name of a person other than the undersigned, the undersigned will pay all
transfer taxes payable with respect thereto.

Dated:

                                    _____________________________
                                    Signature
                                    MUST BE MEDALLION GUARANTEED IF THE 
                                    STOCK IS TO BE ISSUED IN A NAME 
                                    OTHER THAN THE REGISTERED HOLDER OF 
                                    THE SECURITY

          If shares are to be registered in the name of and delivered to a
person other than the holder, please print such person's name and address and,
if this is a Restricted Security, complete Transfer Notice:


                                    _____________________________
                                    HOLDER
                                    Please print name and address
                                    of holder:
 

                               CONVERSION NOTICE

          If (i) Registered Security of denomination greater than U.S.$1,000 or
(ii) Bearer Security of denomination U.S.$10,000:

          The undersigned holder of this Security hereby irrevocably exercises
the option to convert this Security, or portion hereof (which is U.S.$1,000 or
an integral multiple thereof below designated, into shares of Common Stock of
Veterinary Centers of America, Inc. in accordance with the terms of this
Security, and directs that such shares, together with a check in payment for any
fractional share and any Securities representing any unconverted principal
amount hereof, be delivered to and be registered (if a Registered Security) in
the name of the undersigned unless a different name has been indicated below. If
shares or 

                                     A-22
<PAGE>
 
Securities are to be registered in the name of a person other than the
undersigned, the undersigned will pay all transfer taxes payable with respect
thereto.

Dated:                              ____________________________
                                    Signature
                                    MUST BE MEDALLION GUARANTEED IF THE 
                                    STOCK IS TO BE ISSUED IN A NAME OTHER 
                                    THAN THE REGISTERED HOLDER OF THE 
                                    SECURITY

<TABLE>
<S>                                                     <C>                                         
If shares of Securities are to be registered in the     If only a portion of the Securities in the name of    
name                                                    is to be converted, please indicate: 
of a Person other than the holder, please print                                  
such person's name and address and, if this is a        1.   Principal Amount to be Security, 
Restricted                                                   complete Transfer Notice: converted:           
Security, complete Transfer Notice                           U.S.$                          
                                                                                                                   
                                                         2.   Kind, amount and denomination of                  
                                                              Securities representing unconverted                   
                                                              principal amount to be issued:                        
                                                                                                                   
                                                         Bearer-U.S.$_____________________________       
                                                         Denominations:  U.S.$____________________       
                                                                 (U.S.$1,000 or $10,000)                
                                                         Registered-U.S.$                    
                                                         Denominations:  U.S.$____________________       
                                                                (U.S. $1,000 or an integral multiple          
                                                                thereof)                        
                                                                                                                   
                                                         Registered Securities are not exchangeable for     
                                                         Bearer Securities.                    
                                                            
</TABLE>


                      REDEMPTION NOTICE UNDER SECTION 3(d)

          The undersigned holder of this Security hereby requests and instructs
the Company to redeem this Security in accordance with the terms of Section 3(d)
of this Security and directs that a check in payment of the redemption amount be
delivered to the undersigned unless a different name has been indicated below.
The undersigned understands that this request can be revoked by delivering
written notice to the Paying Agent on or before the Holder Redemption Date,
together with the undersigned's non-transferable receipt for such Security.

Dated:                  _____________________________
                        Signature
                        MUST BE MEDALLION GUARANTEED IF CHECK IS TO BE MADE
                        PAYABLE TO A NAME OTHER THAN THE REGISTERED HOLDER OF
                        THE SECURITY

If a check in payment of the redemption
amount is to be delivered to a person
other than the holder, please print
such person's name and address:

                                     A-23
<PAGE>
 
___________________________
HOLDER
Please print name and
address of holder:

                                     A-24
<PAGE>
 
                   [SCHEDULE OF EXCHANGES OF DEFINITIVE NOTES

     The following exchanges of a part of this Rule 144A Global Security for
Registered Accredited Investor Securities have been made:

<TABLE>
<CAPTION>
                                                              Principal Amount       Signature of           
                   Amount of Decrease   Amount of Increase     of This Global     Authorized Officer        
                      in Principal        in Principal       Security Following      of Trustee or          
                     Amount of This      Amount of This        Such Decrease           Security             
 Date of Exchange    Global Security     Global Security        or Increase           Registrar]             
 ----------------    ---------------     ---------------        -----------           ----------          
 <S>                <C>                 <C>                   <C>                 <C>
</TABLE>

                                     A-25
<PAGE>
 
                                   EXHIBIT B

                     (FORM OF REGULATION S GLOBAL SECURITY)

     THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE UNITED STATES SECURITIES
ACT OF 1933, AS AMENDED (THE "SECURITIES ACT") OR ANY STATE SECURITIES LAWS.
NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE OFFERED,
SOLD OR OTHERWISE TRANSFERRED, DIRECTLY OR INDIRECTLY, IN THE UNITED STATES OF
AMERICA (INCLUDING THE STATES AND THE DISTRICT OF COLUMBIA), ITS TERRITORIES,
ITS POSSESSIONS AND OTHER AREAS SUBJECT TO ITS JURISDICTION (THE "UNITED
STATES") OR TO ANY CITIZEN, NATIONAL OR RESIDENT OF THE UNITED STATES OR TO ANY
CORPORATION, PARTNERSHIP OR OTHER ENTITY CREATED OR ORGANIZED IN OR UNDER THE
LAWS OF THE UNITED STATES OR ANY POLITICAL SUBDIVISION THEREOF, OR TO ANY ESTATE
OR TRUST THE INCOME OF WHICH IS SUBJECT TO UNITED STATES FEDERAL INCOME TAXATION
REGARDLESS OF ITS SOURCE OR TO ANY OTHER PERSON DEEMED A U.S. PERSON UNDER
REGULATION S UNDER THE SECURITIES ACT ("UNITED STATES PERSONS"), EXCEPT TO
CERTAIN INSTITUTIONAL INVESTORS IN THE UNITED STATES IN TRANSACTIONS NOT
REQUIRED TO BE REGISTERED UNDER THE SECURITIES ACT. ANY UNITED STATES PERSON WHO
HOLDS THIS OBLIGATION WILL BE SUBJECT TO LIMITATIONS UNDER THE UNITED STATES
FEDERAL INCOME TAX LAWS, INCLUDING THE LIMITATIONS PROVIDED IN SECTIONS 165(j)
AND 1287(a) OF THE UNITED STATES INTERNAL REVENUE CODE OF 1986, AS AMENDED. THIS
SECURITY IS A TEMPORARY GLOBAL SECURITY, WITHOUT COUPONS, EXCHANGEABLE FOR
DEFINITIVE BEARER SECURITIES WITH INTEREST COUPONS OR REGISTERED SECURITIES
WITHOUT INTEREST COUPONS. THE RIGHTS ATTACHING TO THIS GLOBAL SECURITY, AND THE
CONDITIONS AND PROCEDURES GOVERNING ITS EXCHANGE FOR DEFINITIVE SECURITIES, ARE
AS SPECIFIED IN THE INDENTURE (AS DEFINED HEREIN). NEITHER THE HOLDER NOR THE
BENEFICIAL OWNERS OF THIS GLOBAL SECURITY SHALL BE ENTITLED TO RECEIVE PAYMENT
OF INTEREST HEREON EXCEPT PURSUANT TO THE PROVISIONS HEREOF.

                                      B-1
<PAGE>
 
                      VETERINARY CENTERS OF AMERICA, INC.
                    (Incorporated in the State of Delaware)
              5 1/4% CONVERTIBLE SUBORDINATED DEBENTURES DUE 2006
                           TEMPORARY GLOBAL DEBENTURE


     Veterinary Centers of America, Inc., a corporation duly incorporated and
existing under the laws of the State of Delaware (the "Company"), for value
received, hereby promises to pay to bearer upon presentation and surrender of
this Global Security the principal sum of $________________ United States
Dollars on May 1, 2006 and to pay interest thereon, from April 17, 1996
semiannually in arrears on May 1 and November 1 in each year, commencing
November 1, 1996, at the rate of 5 1/4% per annum, until the principal hereof is
paid or made available for payment; provided, however, that interest on this
Global Security shall be payable only after the issuance of the definitive
Securities for which this Global Security is exchangeable and, in the case of
definitive Securities in bearer form, only upon presentation and surrender (at
an office or agency outside the United States, its territories and its
possessions, except as otherwise provided in the Indenture referred to below) of
the interest coupons thereto attached as they severally mature.  This Global
Security is one of a duly authorized issue of Securities of the Company
designated as specified in the title hereof, issued and to be issued under the
Indenture dated as of April 17, 1996 (the "Indenture") between the Company and
The Chase Manhattan Bank, N.A., as Trustee (the "Trustee," which term includes
any successor trustee under the Indenture).  This Global Security is a temporary
Security and is exchangeable in whole or from time to time in part without
charge upon request of the holder hereof for definitive Securities in bearer
form, with interest coupons attached, or in registered form, without coupons, of
authorized denominations, (a) not earlier than 40 days after the date hereof and
(b) as promptly as practicable following presentation of each certification
called for in the Indenture for such purpose, that the beneficial owner or
owners of this Global Security (or, if such exchange is only for a part of this
Global Security, of such part) are not United States persons or other Persons
who have purchased such Security for resale to United States persons.
Definitive Securities in bearer form to be delivered in exchange for any part of
this Global Security shall be delivered only outside of the United States, its
territories and its possessions.  Upon any exchange of a part of this Global
Security for definitive Securities, the portion of the principal amount hereof
so exchanged shall be endorsed by the Trustee or its agent on the Schedule of
Exchanges hereto, and the principal amount hereof shall be reduced for all
purposes by the amount so exchanged.  Until exchanged in full for definitive
Securities, this Global Security shall in all respects be entitled to the same
benefits under, and subject to the same terms and conditions of, the Indenture
as definitive Securities authenticated and delivered thereunder, except that
neither the holder hereof nor the beneficial owners of this Global Security
shall be entitled to receive payment of interest hereon or to convert this
Global Security into shares of Common Stock of the Company or any other
security, cash or other property.

     THIS GLOBAL SECURITY SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH
THE LAWS OF THE STATE OF NEW YORK,UNITED STATES OF AMERICA, WITHOUT REGARD TO
PRINCIPLES OF CONFLICTS OF LAWS.

     All terms used in this Global Security which are defined in the Indenture
shall have the meanings assigned to them in the Indenture. Unless the
certificate of authentication hereon has been manually executed by an authorized
signatory of the Trustee, this Global Security shall not be entitled to any
benefit under the Indenture or valid or obligatory for any purpose.

                                      B-2
<PAGE>
 
     IN WITNESS, WHEREOF, the Company has caused this Global Security to be duly
executed in its corporate name by its duly authorized signatory under its
corporate seal.

Dated:  April 17, 1996             VETERINARY CENTERS OF AMERICA, INC.


                                   By: ________________________
                                       Name:
                                       Title:


[Corporate Seal]


Attest:


CERTIFICATE OF AUTHENTICATION

This is one of the Securities described in the within-mentioned Indenture.

     THE CHASE MANHATTAN BANK, N.A.,
     as Trustee


     By: _______________________
         Name:
         Title:

                                      B-3

<PAGE>
 
                                                                     EXHIBIT 5.1

             [LETTERHEAD OF TROOP MEISINGER STEUBER & PASICH, LLP]
                                 
 
                                 June 19, 1996
 

  Veterinary Centers of America, Inc.
  3420 Ocean Park Boulevard, Suite 1000
  Santa Monica, CA 90405

  Ladies/Gentlemen:

       At your request, we have examined the Registration Statement on Form S-4
  (the "Registration Statement") to which this letter is attached as Exhibit 5.1
  filed by Veterinary Centers of America, Inc., a Delaware corporation (the
  "Company"), in order to register under the Securities Act of 1933, as amended
  (the "Act"), shares of Common Stock of the Company and any additional shares
  of Common Stock of the Company which may be registered pursuant to Rule 462(b)
  under the Act (the "Shares").

       We are of the opinion that the Shares have been duly authorized and upon
  issuance and sale in conformity with and pursuant to the Registration
  Statement, and receipt of the purchase price therefor as specified in the
  Registration Statement, the Shares will be legally and validly issued, fully
  paid and non-assessable.

       We consent to the use of this opinion as an Exhibit to the Registration
  Statement and to use of our name in the Proxy Statement -- Prospectus
  constituting a part thereof.


                            Respectfully submitted,



                            /s/ Troop Meisinger Steuber & Pasich, LLP

                            TROOP MEISINGER STEUBER & PASICH, LLP

<PAGE>
 
                                 OFFICE LEASE

          Project:    SANTA MONICA BUSINESS PARK

          Building:   3420 Ocean Park Boulevard (A)

          Tenant:     VETERINARY CENTERS OF AMERICA, INC.


                               TABLE OF CONTENTS

<TABLE>
<CAPTION>

ARTICLE                                                                    PAGE
<S>                                                                        <C>

1.   FUNDAMENTAL LEASE PROVISIONS........................................    1
2.   PREMISES............................................................    1
3.   TERM................................................................    2
4.   RENT AND EXPENSE PAYMENTS...........................................    2
5.   INTENTIONALLY OMITTED...............................................    3
6.   EXPENSES............................................................    3
7.   TAXES PAYABLE SOLELY BY TENANT......................................    7
8.   LATE PAYMENTS.......................................................    7
9.   SECURITY DEPOSIT....................................................    8
10.  INTENTIONALLY OMITTED...............................................    8
11.  USE.................................................................    8
12.  SERVICE AND UTILITIES...............................................    8
13.  ENTRY BY LANDLORD...................................................    9
14.  MAINTENANCE AND REPAIR..............................................   10
15.  ALTERATIONS AND ADDITIONS...........................................   10
16.  INDEMNITY...........................................................   11
17.  INSURANCE...........................................................   12
18.  DAMAGE AND DESTRUCTION..............................................   13
19.  CONDEMNATION........................................................   13
20.  LIENS...............................................................   14
21.  DEFAULTS BY TENANT..................................................   14
22.  LANDLORD'S REMEDIES.................................................   15
23.  DEFAULT'S BY LANDLORD...............................................   16
24.  COSTS OF SUIT.......................................................   16
25.  SURRENDER OF PREMISES; HOLDING OVER.................................   16
26.  SURRENDER OF LEASE..................................................   17
27.  TRANSFER OF LANDLORD'S INTEREST.....................................   17
28.  ASSIGNMENT AND SUBLETTING...........................................   17
29.  ATTORNMENT..........................................................   20
30.  SUBORDINATION.......................................................   20
31.  ESTOPPEL CERTIFICATE................................................   21
32.  BUILDING OCCUPANCY PLANNING.........................................   21
33.  QUIET ENJOYMENT.....................................................   21
34.  WAIVER OF REDEMPTION BY TENANT......................................   21
35.  WAIVER OF LANDLORD, TENANT'S PROPERTY...............................   21
36.  RULES AND REGULATIONS...............................................   22
37.  NOTICES.............................................................   22
38.  WAIVER..............................................................   22
39.  MISCELLANEOUS.......................................................   22
40.  INTENTIONALLY OMITTED...............................................   24
41.  INTENTIONALLY OMITTED...............................................   24
42.  INCORPORATION OF PRIOR AGREEMENTS; AMENDMENTS.......................   24
43.  OPTION TO EXTEND TERM...............................................   24
44.  NON-DISTURBANCE AGREEMENT...........................................   25
45.  HAZARDOUS MATERIALS.................................................   25
</TABLE>

EXHIBITS
A    Description of Page                 
A-1  Description of Project              
B    Verification of Term and Basic Rent 
C    Intentionally Omitted               
D    Subordination of Lease              
D-1  Subordination of Deed of Trust      
E    Estoppel Statement                  
F    Building Rules and Regulations      
G    Intentionally Omitted               
H    Intentionally Omitted                
<PAGE>
 
                            INDEX OF DEFINED TERMS


After-Hours..................................... EXHIBIT F - PAGE 2
Agreed Rate...................................................   23
assign........................................................   25
Assignment....................................................   17
Assigns.......................................................   25
Assuming Tenant...............................................   16
Audit Notice..................................................    6
Bankruptcy Code...............................................   20
Base Year.....................................................    3
Building......................................................    1
Commencement Date.............................................    2
Common Area...................................................    4
Expenses......................................................   23
Extended Term.................................................   24
Extension Rental Notice.......................................   24
gross area....................................................    1
gross square footage..........................................    1
Initial Term..................................................   24
Landlord......................................................    1
Landlord's Base Year Costs....................................    3
Mortgagee.....................................................   12
Normal Business Hours........................... EXHIBIT F - PAGE 2
Notice to Extend Term.........................................   24
Option to Extend Term.........................................    4
Premises......................................................    1
Project.......................................................    2
Proposed Effective Date.......................................   17
Rent..........................................................    2
rentable area.................................................    2
rentable square footage.......................................    2
Rental........................................................    2
Subsequent Year...............................................    4
taking........................................................   13
Tenant........................................................    1
Tenant's Share................................................    4
usable area...................................................    1
usable square footage.........................................    1

                                      ii
<PAGE>
 
                                 OFFICE LEASE

     THIS LEASE is made as of this ______ day of ________________ 1996 by and
between BARCLAY CURCI INVESTMENT COMPANY, a California general partnership
("Landlord") and VETERINARY CENTERS OF AMERICA, INC., a Delaware corporation
("Tenant").

     In consideration of the rents and covenants hereinafter set forth, Landlord
hereby leases to Tenant and Tenant hereby rents from Landlord the following
described Premises, upon the following terms and conditions:

1.   FUNDAMENTAL LEASE PROVISIONS

<TABLE>

<S>  <C>            <C>                                                             <C>  
1.1  PREMISES:      Project: Santa Monica Business Park                             (Article 2)
                             Building:  3420 Ocean Park Boulevard [A]
                             Suite:  2000  Floor:  2nd
                             City:  Santa Monica    County: Los Angeles
                             State:  California

1.2  FLOOR AREA:    Rentable Area: 9,176 square feet.                               (Article 2)
                    Usable Area:  8,193 square feet.

1.3  TERM:          33 months and 3 days                                            (Article 3)
                    Commencement Date:  June 1, 1996
                    Expiry Date:  March 3, 1999

1.4  BASIC RENT:                            Dollars Per          Dollars Per        (Article 4)
                         Months          Rentable Square Foot      Month
                         ------          --------------------      -----
                         1-Expiry Date          $  1.60           $ 14,681.60

1.5  EXPENSES:      Tenant shall pay Tenant's Share of all Expenses that exceed     (Article 5)
                    landlord's Base Year costs together with other items of
                    Expense as set forth in Article 6.  Tenant's Share is 8.77%.
                    The Base Year shall be the calendar year 1996.

1.6  AFTER-HOURS    After-Hours Charges payable by Tenant as of the                 (Article 6)
     CHARGES:       Commencement Date shall be as follows:
 
                        Air Conditioning  $25.00 per hour, per unit
                        Ventilation only  Not available
                        Lighting only     $0.00 per hour

1.7  PREPAID        Tenant shall pay the Basic Rent for the first month of the      (Article 12)
     RENT:          term upon execution of this Lease.

1.8  SECURITY       $14,681.60                                                      (Article 9)
     DEPOSIT:

1.9  LANDLORD'S     c/o TRANSPACIFIC DEVELOPMENT COMPANY                            (Article 37)
     ADDRESS FOR    2377 Crenshaw Boulevard, Suite 300
     NOTICES:       Torrance, California 90501-3325
 
1.10 TENANT'S       To the Premises                                                 (Article 37)
     ADDRESS FOR
     NOTICES:       with a copy to:
                    ---------------
                    Troop Meisinger Steuber & Pasich LLP  
                    10940 Wilshire Boulevard, 8th Floor   
                    Los Angeles, California 900024-3902   
                    Attention:  Robert J.  Plotkowski      
 
1.11 BROKER:        Julien J.  Studley, Inc., Charles Dunn Company, Inc.  and       (Section 39.3)
                    Transpacific Development Company.
</TABLE>

2.   PREMISES

     2.1  The approximate location of the premises (the "Premises") leased
hereunder is shown on the drawing attached hereto Exhibit A. The Premises
                                                  ---------               
consist of that certain space situated in the building (the "Building")
described in Section 1.1 hereof. The area of the Premises for all purposes
hereunder is stipulated to be the square feet of usable area and square feet of
rentable area specified at Section 1.2. As used in this Lease, the following
terms have the meanings indicated:

          2.1.1   The term "gross area" or "gross square footage" means the
     entire area being measured, including vertical elevator and ventilation
     shafts, maintenance, telephone, mechanical and electrical rooms and
     closets, and all other public areas measured from the exterior of exterior
     walls and from the center line of interior demising walls;

          2.1.2   The term "usable area" or "usable square footage" means the
     entire floor area of tenant space being measured, excluding vertical shafts
     and all public areas, measured from the exterior walls and the exterior of
     interior corridor walls, and the center line of interior demising walls;
     and

                                       1
<PAGE>
 
          2.1.3   The term "rentable area" or "rentable square footage" means
     the entire area measured in the same way within exterior Building walls
     including all common or public areas of the Building allocated
     proportionately to each floor of the Building but excluding public
     stairwells and such vertical shafts. As to the area leased by Tenant, the
     rentable area is stipulated to be the usable area of the Premises increased
     by 12%.

     2.2  Intentionally Omitted.

     2.3  The Premises are a part of a business/commercial complex consisting of
the Building and other buildings, landscaping, parking facilities and other
improvements described as the "Project" in Section 1.1 hereof. The Project is
generally shown on the drawing attached hereto as Exhibit A-1. Landlord may, in
its sole discretion, change the size, shape, location, number and extent of any
or, all of the improvements in the Project without any liability to or consent
of Tenant, except that no material change in the size or location of the
Premises shall be made without Tenant's consent. Tenant does not rely on the
fact nor does Landlord represent that any specific tenant or number of tenants
shall occupy any space in the Project.

     2.4  Landlord reserves the right to use the roof and exterior walls of the
Premises, and the area beneath, adjacent to and above the Premises, together
with the right to install, use, maintain and replace equipment, machinery,
pipes, conduits and wiring through the Premises, which serve other parts of the
Project, in a manner and in locations which do not unreasonably interfere with
Tenant's use of the Premises. No light, air or view easement is created by this
Lease.

     2.5  Tenant hereby acknowledges that the Project is being, or may be,
constructed or reconstructed in phases, and that by reason of construction or
reconstruction activities there may be temporary incidents thereof such as dust,
dirt, barricades, detours, equipment or material in the Building or Common
Areas. Tenant hereby agrees that so long as Landlord conducts such activities in
a reasonable manner Landlord shall not be liable for any such incidents of
construction or reconstruction.

     2.6  Tenant shall lease the Premises in an "As Is" condition and Landlord
shall have no obligation to improve, remodel, alter or otherwise modify the
Premises for Tenant's occupancy thereof. Landlord warrants that, as of the date
Landlord delivers possession of the Premises to Tenant, the Building plumbing,
electrical, mechanical, and heating, ventilating and air conditioning systems
serving the Premises shall be in good and working condition. The Premises shall
be delivered to Tenant "broom-clean", free of debris.

3.   TERM

     3.1  COMMENCEMENT DATE.  The term of this Lease shall be for the duration
set forth in Section 1.3 hereof and shall commence on the date specified as the
Commencement Date (the "Commencement Date") at Section 1.3 and shall expire upon
the Expiry Date set forth at Section 1.3 unless earlier terminated in accordance
with the provisions of this Lease. Landlord shall complete and deliver to Tenant
an instrument substantially in the form set forth in Exhibit B attached hereto
and Tenant shall promptly execute and return the same to Landlord after making
any corrections to any factual errors. This Lease shall be a binding contractual
agreement effective upon the date of execution hereof by both Landlord and
Tenant, notwithstanding the later commencement of the term of this Lease.

     3.2  INTENTIONALLY OMITTED.

     3.3  INTENTIONALLY OMITTED.

     3.4  EARLY ACCESS.  Tenant shall be permitted continuous access to the
Premises (including the parking to which Tenant is entitled pursuant to the
Parking License Agreement and the use of the heating, ventilating and air
conditioning system) three (3) weeks prior to the Commencement Date pursuant to
all of the terms and conditions contained in this Lease, except for the
obligation to pay Basic Rent and Tenant's Share of Expenses solely for the
purpose of installing furniture, fixtures and telephone systems; however, if
Tenant should conduct business from the Premises at any time during such three
(3)-week period, the Basic Rent and Tenant's Share of Expenses shall commence
upon such date.  Tenant shall not be charged for the use of freight elevators
for the purpose of installing such furniture, fixtures and telephone system.
Tenant shall inform Landlord or its representative at the property management
office at the Project of the date or dates it will require access to the
Premises and Landlord shall provide Tenant access to the Premises on such days.
Prior to Tenant obtaining any access to the Premises under this Section 3.4,
Tenant shall deliver to Landlord the certificates of insurance required pursuant
to Article 17, and Landlord shall have no obligation to admit Tenant or any of
its employees, agents or contractors until such certificates have been so
delivered.

4.   RENT AND EXPENSE PAYMENTS

     4.1  GENERAL.  The "Rent" or "Rental" hereunder is composed of "Basic Rent"
as set forth in Section 1.4 hereof and adjustments thereto as hereinafter
provided.  The term "Expenses" hereunder means all costs, expenses, fees,
charges or other amounts described in Article 6.  Tenant agrees to pay to
Landlord all Rent and Expenses required under this Lease, which shall be payable
monthly to Landlord (unless expressly provided otherwise), without deduction or
offset except as otherwise expressly provided in this Lease, in lawful money of
the United States of America at the office maintained by Landlord in the Project
or at such other place as Landlord may from time to time designate in writing.
Notwithstanding any contrary provisions of this Lease, all Expenses,

                                       2
<PAGE>
 
late payment fees, interest, "After-Hours Charges", parking fees payable under
the "Parking License Agreement" attached hereto, and all other sums of money or
charges required to be paid pursuant to this Lease shall be deemed "Additional
Rent" for the Premises; and in any notice to pay rent or quit the Premises,
Landlord. may include and designate same as rent then past due and owing, if
such is the case. No acceptance by Landlord of partial payment of any sum due
from Tenant shall be deemed a waiver by Landlord of any of its rights to the
full amount due. nor shall any endorsement or statement on any check or
accompanying letter from Tenant be deemed an accord and satisfaction. Any Rent
payments or other sums received from Tenant or any other person shall be
conclusively presumed to have been paid on Tenant's behalf, unless Landlord has
been given prior written notice to the contrary by Tenant. Tenant agrees that
the acceptance by Landlord of any such payment shall not constitute a consent by
Landlord or a waiver of any of its rights under this Lease. In no event shall
the foregoing be construed as requiring Landlord to accept any Rent or other
sums from any person other than Tenant. If the term hereof begins or ends on a
day other than the last day of a month, then the Rent and Expenses for such
month shall be prorated based on the actual number of days in such month. All
prorations of Rent or Expenses under this Lease for fractional periods shall be
based on the actual number of days in such month and on the actual number of
days in such year.

     4.2  BASIC RENT.  Tenant shall pay the "Basic Rent" set forth in Section
1.4 hereof on the first day of each month in advance, beginning on the
Commencement Date. Landlord may, but shall not be obligated to, send a bill or
statement for Rent to Tenant each month, but Tenant shall be obligated to pay
Rent on the first day of each month regardless of whether or not it receives a
bill or statement.

     4.3  PREPAID RENT.  Tenant shall pay prepaid Basic Rent concurrently with
the execution of this Lease, as set forth in Section 1.7 hereof.

5.   INTENTIONALLY OMITTED

6.   EXPENSES

     6.1  Tenant shall pay its share of "Expenses" on the first day of each
month during the term hereof or otherwise as set forth in this Article 6. The
monthly Expenses payable by Tenant hereunder consist of the amount by which
Tenant's Share of Expenses exceeds Landlord's, Base Year Costs (as such terms
are hereinafter defined), calculated as follows: Total Expenses (estimated or
actual) multiplied by Tenant's Share minus Landlord's Base Year Costs, divided
by twelve (12) months.

     6.2  DEFINITIONS.  As used in this Lease, the following terms have the
meanings indicated:

          6.2.1   "Landlord's Base Year Costs" means the annualized dollar
     amount which results from multiplying the total actual Expenses incurred by
     Landlord during the Base Year by Tenant's Share. Such amount constitutes
     the amount per year which Landlord agrees to pay towards Expenses allocable
     to the Premises, without reimbursement from Tenant. Landlord's Base Year
     Costs shall be adjusted to be equal to Landlord's reasonable estimate of
     Expenses assuming at least ninety-five percent (95%) of the total rentable
     area of the Building was occupied for the entire year, and assuming the
     Building was fully completed and fully assessed for property tax
     assessment, maintenance and repair purposes.

          6.2.2   The term "Expenses" means all expenses, costs and fees paid or
     incurred by Landlord during any calendar year during the term hereof in
     connection with or attributable to the Building and Common Area (as
     described hereinafter), including any parking facilities therein, for:

                  6.2.2.1   Electricity, water, gas, sewer, and all other
          utility services to or for the Building or Common Area, including any
          utility taxes, fees, charges or other similar impositions paid or
          incurred by Landlord in connection therewith; and

                  6.2.2.2   Operation, maintenance, security services,
          replacement for normal wear and tear, repair, restriping or
          resurfacing of paving, management (including costs of on-site offices
          and personnel and a reasonable home-office overhead allocation),
          insurance (including public liability and property damage, rent
          continuation, boiler and machinery and extended coverage insurance),
          and cleaning of the Building and Common Area and all furnishings,
          fixtures and equipment therein, but excluding the costs of special
          services rendered to tenants (including Tenant) for which a separate
          charge is made, costs of leasing and preparing space for new tenants
          in the Building, or costs borne solely by Tenant under the Lease. The
          term "Expenses" includes the annual amortization of costs (including
          financing at the then prevailing rate, if any) of any equipment,
          device or improvement (a) required after completion of the Building by
          governmental authority or (b) incurred as a labor saving measure or to
          reduce operation or maintenance expenses with respect to the Building
          and Common Area where such costs are amortized over the useful life
          thereof and which do not inure primarily to the benefit of any
          particular tenant; however, the annual amortization of costs under 
          (b) preceding shall be limited to an amount reasonably anticipated to
          be the annual reduction of labor, operation or maintenance expenses
          resulting from such equipment, device or improvement; and

                  6.2.2.3   All real property taxes and personal property taxes,
          licenses, charges and assessments which are levied, assessed, imposed
          or collected by any governmental authority or improvement or
          assessment district during any calendar year with respect to the
          Building or Common Area and the land on which the same is located, and
          any improvements, fixtures,

                                       3
<PAGE>
 
          equipment and other property of Landlord, real or personal, located in
          the Project and used in connection with the operation or maintenance
          of the Building or Common Area (computed on a cash basis or as if paid
          in permitted installments regardless of whether actually so paid), as
          well as any tax which shall be levied or assessed in addition to or in
          lieu of such taxes (it being acknowledged that because of the passage
          of laws which limit increases in real property taxes, government
          agencies may impose fees, charges, assessments or other levies in
          connection with services previously furnished without charge or at a
          lesser charge and which were previously paid for in whole or in part,
          directly or indirectly by real property taxes), any gross excise tax
          or other similar tax, and any costs or expenses of contesting any such
          taxes, licenses, charges or assessments, but excluding any federal or
          state income or gift tax or any franchise, capital stock, estate or
          inheritance taxes.

          6.2.3   The term "Common Area" means that portion of the Project other
     than the Building and other buildings for lease to tenants which is from
     time to time designated and improved for nonexclusive, common use by
     tenants of the Project, their employees and invitees. The general location
     of the Common Area is shown on Exhibit A-1 attached hereto and incorporated
     by reference. The Common Area includes parking facilities in the Project.

          Any cost or expense included in Expenses which is attributable to
     Common Area shall be prorated by Landlord to the Building based on the
     proportion which the total square footage of the Building bears to the
     total square footage of all buildings in the Project from time to time or
     by such other fair and reasonable method of allocations based on use or
     benefit as Landlord may determine, except that, with regard to taxes,
     Landlord may use such allocation of taxes among the various parcels in the
     Project as may have been used by the taxing authority.

          6.2.4   The term "Base Year" means the calendar year specified at
     Section 1.5.

          6.2.5   The term "subsequent Year" means the first full calendar year
     following the Base Year and each calendar year, or part thereof, thereafter
     occurring during the term of this Lease,

          6.2.6   "Tenant's Share" is hereby agreed by Landlord and Tenant to be
     the percentage set forth in Section 1.5 hereof.

          6.2.7   Notwithstanding the foregoing, for purposes of this Lease,
     Expenses shall not, except as otherwise set forth in this Section 6.2.7,
     include the following:

                  6.2.7.1   Bad debt and interest, principal, points and fees on
          debts (except in connection with the financing of items which may be
          included in Expenses) or amortization on any mortgage or mortgages or
          any other debt instrument encumbering the Building or the Project
          (including the land on which the Building is situated) except that
          interest, principal and amortization of expenditures permitted
          pursuant to this Article 6 are expressly included as Expenses.

                  6.2.7.2   Marketing costs, including leasing commissions,
          attorneys' fees in connection with the negotiation and preparation of
          letters, deal memos, letters of intent, leases, subleases and/or
          assignments, space planning costs, and other costs and expenses
          incurred in connection with lease, sublease and/or assignment
          negotiations and transactions with present or prospective tenants or
          other occupants of the Building, including attorneys' fees and other
          costs and expenditures incurred in connection with disputes with
          present or prospective tenants or other occupants of the Building.

                  6.2.7.3   Real estate brokers' leasing commissions.

                  6.2.7.4   Costs, including permit, license and inspection
          costs, incurred with respect to the installation of other tenants' or
          occupants' improvements made for tenants or other occupants in the
          Building or incurred in renovating or otherwise improving, decorating,
          painting or redecorating vacant space for tenants or other occupants
          in the Building.

                  6.2.7.5   The cost of providing any service directly to and
          paid directly by any tenant (except if such service is paid for as
          part of such tenant's share of Expenses.

                  6.2.7.6   Costs of any items (including costs incurred by
          Landlord for the repair of damage to the Building) to the extent
          Landlord receives reimbursement from insurance proceeds therefor or
          from a third party, except as an item of Expense under such third
          party's lease (except that any deductible amount under any insurance
          policy shall be included within Expenses) or to the extent covered by
          warranties then in effect.

                  6.2.7.7   Costs of capital improvements, except those set
          forth in Section 6.2.2.2 hereof.

                  6.2.7.8   Depreciation, amortization and interest payments, on
          materials, tools, supplies and vendor-type equipment purchased by
          Landlord to enable Landlord to supply services Landlord might
          otherwise contract for with a third party, except if such
          depreciation, amortization and

                                       4
<PAGE>
 
          interest payments would otherwise have been included in the charge for
          such third party's services.

                  6.2.7.9   Costs incurred by Landlord for equipment and tools
          which are considered capital improvements under generally accepted
          accounting principles, consistently applied, except as specifically
          included in Expenses pursuant to the terms of this Lease.

                  6.2.7.10  Expenses in connection with services or other
          benefits which are not offered to Tenant or for which Tenant is
          charged for directly (and not as an item of Expense) but which are
          provided to another tenant or occupant of the Building, without
          charge.

                  6.2.7.11  Costs incurred by Landlord due to the violation by
          Landlord or any tenant of the terms and conditions of any lease of
          space in the Building (however, this will not excuse Tenant from the
          payment of Tenant's Share of insurance premiums and deductibles
          otherwise payable as items of Expense hereunder).

                  6.2.7.12  Costs arising from claims, disputes or potential
          disputes in connection with potential or actual claims, litigation or
          arbitration pertaining to Landlord and any other tenant (however, this
          shall not excuse Tenant from the payment of Tenant's Share of
          insurance premiums and deductibles otherwise payable as items of
          Expense hereunder).

                  6.2.7.13  Overhead and profit increment paid to Landlord or to
          subsidiaries or affiliates of Landlord for goods and/or services in
          the Building to the extent the same exceeds the costs of such goods
          and/or services that would otherwise have been paid to unaffiliated
          third parties on a reasonably competitive basis.

                  6.2.7.14  Landlord's general corporate overhead, corporate
          general and corporate administrative expenses.

                  6.2.7.15  Costs associated with the business of the
          partnership or entity which constitutes Landlord as the same are
          distinguished from the costs of the operation of the Project and the
          Building, including partnership accounting and legal fees, costs of
          defending lawsuits with any mortgagee (except as the actions of Tenant
          may be in issue).

                  6.2.7.16  Advertising and promotional expenditures, and costs
          of signs in or on the Building identifying the owner of the Building
          or other tenants' signs.

                  6.2.7.17  Tax penalties incurred as a result of Landlord's
          negligence, inability or unwillingness to make payments or file
          returns when due.

                  6.2.7.18  Costs arising from Landlord's charitable or
          political contributions.

                  6.2.7.19  Costs arising from latent defects in the original
          construction of the base, shell and core of the Building or
          improvements installed by Landlord.

                  6.2.7.20  Costs necessitated by or resulting from the gross
          negligence of Landlord, or any of its agents, employees or independent
          contractors (however, this shall not excuse Tenant from paying
          Tenant's Share of Expenses associated with any insurance premiums or
          deductibles covering any such acts).

                  6.2.7.21  Costs for the removal, treatment, disposal and 
          clean-up of any hazardous materials (as defined by applicable
          governmental agencies).

                  6.2.7.22  Salaries and benefits for leasing agents,
          promotional directors end executives above the level of regional
          property manager.

     6.3  PAYMENT OF ESTIMATED EXPENSES.  Tenant shall pay estimated Expenses to
Landlord as follows:

          6.3.1   Landlord shall submit to Tenant, on or before March 31 of the
     first Subsequent Year or as soon thereafter as Landlord has sufficient
     data, a reasonably detailed and itemized statement showing the Expenses for
     the Base Year.

          6.3.2   For each Subsequent Year, Landlord shall submit to Tenant,
     prior to January 1 of such Subsequent Year or as soon thereafter as
     practicable, a reasonably detailed statement showing the estimated Expenses
     for such Subsequent Year. The determination of estimated Expenses hereunder
     shall be made by Landlord reasonably and without discrimination based upon
     Landlord's experience with actual costs and projections for the Project.
     Tenant shall pay monthly to Landlord an amount equal to the excess of (a)
     the sum of the total annual estimated Expenses multiplied by Tenant's Share
     minus (b) Landlord's Base Year Costs, over (c) twelve (12) months. If
     Landlord does not submit said statement to Tenant prior to January 1 of any
     such Subsequent Year, Tenant shall continue to pay its share of estimated
     Expenses at the then existing rate until such statement is submitted, and,
     thereafter, at the monthly Rent payment date next following the submittal
     of such statement, shall pay its share of estimated Expenses based on the
     rate set

                                       5
<PAGE>
 
     forth in such statement together with any amounts based on such rate which
     may have theretofore accrued from January 1 of such Subsequent Year.
     Landlord may revise such estimated Expenses at the end of any calendar
     quarter, and Tenant shall pay Tenant's Share of such revised estimated
     Expenses after notice thereof as herein provided. In the event estimated
     Expenses are so revised at the end of a calendar quarter, Tenant may
     request in writing the basis for such recalculation and Landlord shall
     provide Tenant with the reasonable basis for such revision.

     6.4  PAYMENT OF ACTUAL EXPENSES.  Actual Expenses shall be reconciled
against payments of estimated Expenses as follows:

          6.4.1   On or before March 31 of the second Subsequent Year and each
     Subsequent Year thereafter, or as soon thereafter as Landlord has
     sufficient data, Landlord shall submit to Tenant a reasonably detailed and
     itemized statement showing the actual Expenses paid or incurred by Landlord
     during the previous calendar year.  If Tenant's Share of such actual
     Expenses is less than the amount of estimated Expenses for such previous
     year theretofore paid by Tenant, then Landlord shall credit the amount of
     such difference against estimated and/or actual Expenses which may
     thereafter be due from Tenant; provided, however, that in no event shall
     Tenant receive a credit as provided herein for any amount calculated to be
     less than Landlord's Base Year Costs.  If Tenant's Share of such actual
     Expenses is more than the amount of the estimated Expenses for such
     previous year theretofore paid by Tenant, then Tenant shall, at the later
     of (a) 15 days after its receipt of such statement or (b) the monthly Rent
     payment date next following the submittal of such statement to Tenant, pay
     to Landlord the full amount of such difference.

          6.4.2   The reconciliation of the Expenses paid by Tenant for the
     calendar year in which this Lease terminates shall be made upon Landlord's
     submittal to Tenant of the statement of actual Expenses for such calendar
     year. The estimated and actual Expenses for such calendar year shall be
     prorated based on the actual number of days in such calendar year that this
     Lease was in effect, and shall be compared. If pursuant to such comparison
     it is determined that there has been an underpayment or an overpayment by
     Tenant for such calendar year, Landlord shall refund the overpayment to
     Tenant, or Tenant shall pay the amount calculated as owing to Landlord, as
     the case may be, within thirty (30) days after the submittal of the
     statement by Landlord. This provision shall survive the expiration or
     termination of the Lease, If Landlord deems it advisable, Landlord may
     submit partial year statements pursuant to this Section 6.4.2 in order to
     cause an earlier reconciliation of Expenses for the calendar year in which
     this Lease terminates. Such reconciliation shall be final and binding upon
     the parties and there shall be no further obligation by Tenant to pay any
     further sums to Landlord (whether pursuant to Section 6.5.4 or otherwise)
     nor shall Landlord have any further obligation to pay to Tenant any credit
     against Expenses.

          6.4.3   Tenant's Right of Audit.  If Tenant should in good faith
     dispute the amount of Tenant's Share of Expenses as contained in such
     statement ("Disputed Statement"), Tenant shall have the right to audit
     Landlord's records with respect thereto in accordance with the provision of
     this Section 6.4.3:

                  6.4.3.1   Tenant shall give Landlord no less than thirty
          (30)days prior written notice of such dispute and of Tenant's intent
          to audit ("Audit Notice"), which Audit Notice must be given to
          Landlord within ninety (90) days following the date of Tenant's
          receipt of the Disputed Statement. However, in no event shall Tenant
          conduct an audit more than once in any calendar year.

                  6.4.3.2   The records relating to the Disputed Statement shall
          be audited by an independent certified public accountant, who shall
          not, however, be retained or compensated on a contingency fee basis.
          The audit shall be conducted at the office where such records are
          maintained during regular business hours. The auditor shall deliver a
          certified copy of the audit to Landlord concurrently with the delivery
          of such audit to Tenant. The audit, the results of the audit and the
          records pertaining thereto shall be considered confidential and shall
          not be revealed by Tenant or its auditor to anyone other than Tenant's
          accountants, Tenant's legal counsel and Landlord. No records or copies
          of records in any form may be removed from the office where such
          records are maintained.

                  6.4.3.3   If such audit reveals that Landlord has overcharged
          or undercharged Tenant, such audit shall be subject to the reasonable
          review of, and acceptance by, Landlord, and the results of such
          reasonable review of Landlord shall be binding upon the parties.

                  6.4.3.4   If, as a result of these audit provisions, it is
          determined that Tenant was overcharged in such statement, then
          Landlord shall reimburse Tenant within thirty (30) days after the
          later to occur of (a) Landlord's receipt of Tenant's written demand
          therefor or (b) Landlord's receipt of the certified auditor's report,
          uncontested by Landlord.  If, as a result of these audit provisions,
          it is determined that Tenant was undercharged, then notwithstanding
          any contrary provision contained in this Article 6, Tenant shall pay
          to Landlord the difference within thirty (30) days after written
          demand therefor from Landlord.

                  6.4.3.5   Tenant shall pay the costs and expenses for such
          audit; however, if as a final result of these audit procedures it is
          determined that (a) the difference in Expenses is in excess of five
          percent (5%) and (b) Tenant was overcharged in the Disputed Statement,
          then Landlord shall

                                       6
<PAGE>
 
          reimburse Tenant for the reasonable, usual and customary costs for
          such audit (exclusive, however, of travel and lodging costs and
          attorneys' fees), within thirty (30) days after Landlord has received
          from Tenant an itemized paid invoice from such auditor.

                  6.4.3.6   Tenant shall not be permitted to conduct an audit at
          any time Tenant is in default of this Lease.

     6.5  OTHER EXPENSE PROVISIONS.

          6.5.1   Notwithstanding any provision of this Article 6 to the
     contrary, if at any time during the term of this Lease any tenant, pursuant
     to an express provision in its lease and with Landlord's approval,
     contracts for certain Building or Common Area services to be provided
     directly to it and at its expense, which services would normally be
     furnished by Landlord (e.g., janitorial, maintenance, utilities, etc.),
     then Landlord may make an appropriate adjustment in calculating Tenant's
     Share of Expenses to the end that the cost of the remaining services
     provided by Landlord are shared proportionately by all tenants receiving
     such services.

          6.5.2   In determining the amount of Expenses hereunder, the Expenses
     shall be adjusted to be equal to Landlord's reasonable estimate of Expenses
     assuming at least ninety-five percent (95%) of the total rentable area of
     the Building was occupied for the entire year, and assuming the Building
     was fully completed and fully assessed for property tax assessment,
     maintenance and repair purposes.

          6.5.3   The computation of Expenses pursuant to this Article 6 is
     intended to constitute a formula for an agreed sharing of costs by tenants,
     and may or may not constitute an exact reimbursement to Landlord for costs
     paid by Landlord, and for Landlord's administration.

          6.5.4   Any delay or failure of Landlord in computing or billing for
     Expenses shall not constitute a waiver of, or in any way impair, the
     obligation of Tenant to pay Expenses hereunder provided that, with the
     exception of taxes, items of expense not included as an Expense hereunder
     within two (2) years following the end of the year in which such expense
     was incurred shall not be included as an Expense hereunder.  However,
     Tenant shall not be charged interest on unpaid Expenses which have accrued
     during such time that Landlord has failed to submit a statement for such
     Expenses.

7.   TAXES PAYABLE SOLELY BY TENANT

     7.1  In addition to the Rental and Expenses to be paid by Tenant, Tenant
shall pay before delinquency and without notice or demand by Landlord any and
all taxes levied or assessed on and which become payable by Tenant during the
term of this Lease (excluding, however, state and federal personal or corporate
income taxes measured by the income of Landlord from all sources, capital stock
taxes, and estate and inheritance taxes), whether or not now customary or within
the contemplation of the parties hereto, which are based upon, measured by or
otherwise calculated with respect to: (i) the gross or net Rent payable under
this Lease, including, without limitation, any gross receipts tax or any other
gross income tax or excise tax levied by any taxing authority with respect to
the receipt of the Rental hereunder, (ii) the value of Tenant's equipment,
furniture, fixtures or other personal property located in the Premises; (iii)
the possession, lease, operation, management, maintenance, alteration, repair,
use or occupancy by Tenant of the Premises or any portion thereof; (iv) the
value of any improvements, alterations or additions made in or to the Premises
by or on behalf of Tenant, except for those improvements (if any) which are a
part of the Premises as of the date of this Lease or (v) this transaction or any
document to which Tenant is a party creating or transferring an interest or an
estate in the Premises. Real property taxes on improvements which are a part of
the Premises as of the date of this Lease shall be deemed to be included in the
taxes described in Section 6.2.2.3 above, as to which Tenant shall pay Tenant's
Share.

8.   LATE PAYMENTS

     8.1  If Tenant fails to pay to Landlord when due any Rent, Expenses or
other sums owing to Landlord pursuant to the terms of this Lease, said late
payment shall bear interest at the Agreed Rate as herein provided and, in
addition:

          8.1.1   For each such late payment that is not paid within five (5)
     days after the date the same was due (or, if the payment is for non-
     recurring rent, then five (5) days after Tenant has received notice to make
     such payment), Tenant shall pay to Landlord a service charge equal to five
     percent (5%) of the overdue amount. Tenant acknowledges and agrees that
     such late payment by Tenant will cause Landlord to incur costs and expenses
     not contemplated by this Lease, the exact amounts of which will be
     extremely difficult to ascertain, and that such service charge represents a
     fair estimate of the costs and expenses which Landlord would incur by
     reason of Tenant's late payment. Tenant further agrees that such service
     charge shall neither constitute a waiver of Tenant's default with respect
     to such overdue amount nor prevent Landlord from exercising any other right
     or remedy available to Landlord; and

          8.1.2   Following any three (3) consecutive late payments of Rent,
     Landlord may, upon notice to Tenant,

                  8.1.2.1   Intentionally Omitted.

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<PAGE>
 
                  8.1.2.2   Require that Tenant increase the amount of any
          Security Deposit required herein by one hundred percent (100%), which
          additional Security Deposit shall be retained by Landlord, and which
          may be applied by Landlord, in the manner provided herein with respect
          to any Security Deposit required herein.

9.   SECURITY DEPOSIT

     9.1  Upon Tenant's execution of this Lease, Tenant shall deposit with
Landlord a "Security Deposit" in the amount set forth in Section 1.8 hereof,
which shall be held by Landlord as security for the faithful performance by
Tenant of all of the terms, covenants, and conditions of this Lease, it being
expressly understood and agreed that the deposit is neither an advance Rent
deposit nor a measure of Landlord's damages in case of Tenant's default. If
Basic Rent is increased pursuant to Article 43, the Security Deposit shall be
increased in the same proportion and Tenant shall deposit cash with Landlord in
an amount sufficient to increase the Security Deposit to the appropriate amount.
The Security Deposit may be retained, used or applied by Landlord to remedy any
default by Tenant, to repair damage caused by Tenant to any part of the Project,
and to clean the Premises upon expiration or earlier termination of the Lease,
As well as to reimburse Landlord for any amount which Landlord may spend by
reason of Tenant's default or to compensate Landlord for any other loss or
damage which Landlord may suffer by reason of Tenant's default. If any portion
of said deposit is so used or applied, Tenant shall, within ten (10) days after
written demand therefor, deposit cash with Landlord in an amount sufficient to
restore said deposit to the full amount required hereunder, and Tenant's failure
to do so shall be a material breach of this Lease. Landlord shall not be
required to keep the Security Deposit separate from its general funds, and
Tenant shall not be entitled to interest on such deposit. Tenant may not elect
to use any portion of said Security Deposit as a Rental payment although
Landlord may elect to do so in the event Tenant is in default hereunder or is
insolvent. The Security Deposit or any balance thereof shall be returned to
Tenant at Tenant's last known address (or, at Landlord's option, to the last
assignee of Tenant's interest hereunder) within thirty (30) days after the Lease
term has ended and the Premises have been vacated by Tenant in the manner
required by this Lease.

10.  INTENTIONALLY OMITTED

11.  USE

     11.1 The Premises shall be used and occupied by Tenant for general office
purposes and for no other purpose without the prior written consent of Landlord,
which Landlord may withhold in its sole discretion. Tenant acknowledges that
neither Landlord nor any agent of Landlord has made any representation or
warranty with respect to the Premises, the Building, or the Project, with
respect to the suitability thereof for the conduct of Tenant's business. Tenant
shall not do or permit anything to be done in or about the Premises nor bring or
keep anything therein which will in any way increase the existing rate of or
affect or cause a cancellation of any fire or other insurance covering the
Building, Common Area, or the Premises or any of its contents, nor shall Tenant
sell or permit to be kept, used or sold in or about the Premises any article
which may be prohibited by a standard form policy of insurance. Tenant shall
promptly upon demand reimburse Landlord for any additional premium charged for
any such insurance by reason of Tenant's failure to comply with the provisions
of this Article 11. Tenant agrees that it will use the Premises in such manner
as not to unreasonably interfere with the rights of other tenants of the
Building or Common Area. Tenant shall neither use nor allow the Premises,
Building or Common Area to be used for any unlawful or objectionable purpose,
nor cause, maintain or permit any nuisance or waste in, on or about any portion
of the Project. Tenant will not place a load upon any floor exceeding the floor
load which such floor was designed to carry, and Landlord reserves the right to
prescribe the location of any safe or other heavy equipment in the Premises.
Tenant shall not use or allow anything to be done in or about the Premises or
the Project which will in any way conflict with any law, ordinance or
governmental regulation or requirement of any board of fire underwriters or any
duly constituted public authority now in force or hereafter enacted or
promulgated affecting the use or occupancy of the Premises, and shall promptly
comply with all such laws or requirements at its sole cost and expense. The
judgment of any court of competent jurisdiction or any admission by Tenant that
Tenant has violated any such law, statute, ordinance, rule, regulation or
requirement shall be conclusive of such fact as between Landlord and Tenant.

12.  SERVICE AND UTILITIES

     12.1 Landlord's Obligations. Landlord shall as a part of Expenses make
available to the Premises during the Building's normal business hours as set
forth in Rule 17 of the Rules and Regulations described in Article 36 hereof,
such amounts of air conditioning, heating and ventilation as shall be required
in Landlord's reasonable judgment for the comfortable use of the Premises, as
well as elevator service, reasonable amounts of electric current for normal
lighting by Building Standard overhead fixtures and for fractional horsepower
office machines, and water for lavatory and drinking purposes. "Building
Standard" fixtures and equipment are as described in Schedule A to Exhibit C
                                                                   ---------
attached hereto or, in absence thereof, as installed in the typical common
corridor. Landlord shall as a part of Expenses replace Building Standard light
bulbs, tubes and ballasts which need replacing due to normal use. Landlord shall
also as a part of Expenses maintain and keep lighted (and, during business
hours, air-conditioned) the common stairs, entries and toilet rooms in the
Building and shall provide trash removal, janitorial service and window washing
customary for similar buildings in the same geographical area. Except to the
extent caused by Landlord's negligence, Landlord shall not be in default
hereunder or liable for any damages directly or indirectly resulting from, nor
shall the Rent be abated or shall there be deemed a constructive or other
eviction of Tenant by reason of (i) the installation, use or interruption of use
of any equipment in connection with the furnishing of any of the foregoing
utilities and services, (ii) failure to furnish, or delay in furnishing, any
such utilities or services when such failure or delay is caused by acts of God,
acts of government, labor disturbances of any kind, or other

                                       8
<PAGE>
 
conditions beyond the reasonable control of Landlord, or by the making of
repairs or improvements to the Premises or any part of the Project, or (iii)
governmental limitation, curtailment, rationing or restriction on use of water,
electricity or any other service or utility whatsoever serving the Premises,
Building or Common Area. If (a) Landlord fails to provide any utility Landlord
is required to provide Tenant under the provisions of this Section 12.1 (except
where such failure is the result of casualty damage to, or a condemnation of,
all or a part of the Building), and (b) such failure constitutes a material
interference with Tenant's use and occupancy of the Premises, and (c) Tenant has
notified Landlord in writing of such failure ("Utility Interruption Notice"),
then if such interruption continues for five (5) consecutive days after Landlord
has received the Utility Interruption Notice, then (i) Basic Rent shall be
wholly abated commencing upon the said fifth (5th) day and continuing until such
utility is restored and (ii) if such interruption continues for a period of
thirty (30) consecutive days after Landlord has received the Utility
Interruption Notice and if Landlord or Landlord's agent is solely responsible
for such interruption, then Tenant shall have the right to terminate this Lease
by providing Landlord ten (10) days' written notice thereof, which notice must
be given after the expiration of the said thirty (30-day period and received by
Landlord prior to the date such utility is restored. Landlord shall be entitled
to cooperate with the energy conservation efforts of governmental agencies or
utility suppliers. The failure of Landlord to provide such services if
consistent with the foregoing shall not constitute a constructive or other
eviction of Tenant.

     12.2   AFTER-HOURS CHARGES. During non-business hours Landlord shall as a
part of Expenses keep the public areas of the Building lighted and shall provide
elevator service with at least one (1) elevator, but shall not be obligated to
furnish ventilation, lighting or air conditioning to the Premises. If Tenant
requires ventilation, lighting and/or air conditioning during non-business hours
Tenant shall give Landlord at least twenty-four (24) hours prior notice of such
requirement or shall follow such other procedure for activating the building
energy management system as Landlord may advise Tenant, and Tenant shall pay
Landlord the "After-Hours Charges" for such extra service at the rate set forth
in Section 1.6 hereof. Such rates are subject to increase from time to time
based on increases in Landlord's costs associated with providing such extra
services. All payment required for After-Hours Charges shall be deemed to be
Additional Rent and Landlord shall have the same remedies for a default in
payment thereof as for a default in payment of Rent.

     12.3   TENANT'S OBLIGATIONS. Tenant shall pay, prior to delinquency, for
all telephone charges and all other materials and services not expressly
required to be paid by Landlord, which may be furnished to or used in, on or
about the Premises during the term of this Lease. Tenant shall also pay, as
Additional Rent, all charges and fees required to be paid by Tenant by the Rules
and Regulations described in Article 36 of this Lease.

     12.4   EXCESS UTILITY USAGE. Tenant will not without the prior written
consent of Landlord use any apparatus or device in the Premises, including
(without limitation) electronic data processing machines, punch card machines,
and telephone switchgear, which will materially increase the amount of cooling
or ventilation or electricity or water usually furnished or supplied for use of
the Premises as general office space; nor shall Tenant connect with electric
current (except through existing electrical outlets in the Premises) or water
pipes, any apparatus or device for the purpose of using electrical current or
water, except as may be provided in the Construction Provisions. If Tenant uses
electricity at a rate in excess of 4 kilowatt/hours per usable square foot of
the Premises per year, the cost to Landlord of any such excess use of utility
service by Tenant shall be paid by Tenant based on Landlord's reasonable
estimates and costs. If Tenant requires or uses ventilation, cooling, water or
electric current or any other resource in excess of that usually furnished or
supplied for use of the Premises as general office space, Landlord may cause a
special meter or other measuring device to be installed in or about the Premises
to measure the amount of water, electric current or other resource consumed by
Tenant. The cost of any such meter, and of the installation, maintenance and
repair thereof, shall be paid for by Tenant, and Tenant agrees to pay Landlord
promptly upon demand for all such water, electric current or other resource
consumed, as shown by said meter, at the rates charged by the local public
utility or other supplier furnishing the same, plus any additional expense
incurred by Landlord in keeping account of the foregoing and administering same.
If any lights, machines or equipment (including but not limited to computers)
are used by Tenant in the Premises which materially affect the temperature
otherwise maintained by the heating, ventilation or air conditioning system, or
generate substantially more heat in the Premises than would be generated by
Building Standard lights or usual fractional horsepower office equipment,
Landlord shall have the right to install any machinery and equipment which
Landlord deems necessary to restore the temperature balance in any affected part
of the Building, including but not limited to modifications to the Building
Standard air conditioning equipment, and the cost thereof including the cost of
installation and any additional cost of operation and maintenance occasioned
thereby shall be paid by Tenant to Landlord upon demand. Any sums payable under
this Section 12.4 shall be considered Additional Rent, and Landlord shall have
the same remedies for a default in payment of such sum as for a default in the
payment of Rent.

13.  ENTRY BY LANDLORD

     13.1 Landlord and its authorized representatives shall have the right to
enter the Premises upon advance oral notice (except in an emergency, when no
notice shall be required) at all reasonable times during normal business hours
and at any time in case of an emergency (i) to determine whether the Premises
are in good condition and whether Tenant is complying with its obligations under
this Lease, (ii) to maintain or to make any repair or restoration to the
Building that Landlord has the right or obligation to perform, (iii) to install
any meters or other equipment which Landlord may have the right to install, (iv)
to serve, post, or keep posted any notices required or allowed under the
provisions of this Lease, (v) to post "for sale" signs at any time during the
term, and to post "for rent" or "for lease" signs during the last three (3)
months of the term, (vi) during the last nine (9) months, to show the Premises
to prospective brokers, agents, buyers, tenants, or persons interested in an
exchange, (vii) to shore the foundations, footings, and walls of the Building
and to erect scaffolding and protective barricades around and about the Building
or the Premises, but not so as to prevent entry into the Premises, and (viii) to
do any other

                                       9
<PAGE>
 
act or thing necessary for the safety or preservation of the Premises or the
Building. Landlord shall have the right at all times to have and retain a key
with which to unlock all doors in, upon and about the Premises excluding
Tenant's vaults and safes, and Landlord shall have the right to use any and all
means which Landlord may deem proper to gain entry in an emergency, and any
entry to the Premises obtained by Landlord in accordance with the foregoing
shall not be construed or deemed to be a forcible or unlawful entry into, or a
detainer of, the Premises, or an eviction of Tenant from the Premises or any
portion thereof. Except to the extent caused by the negligence or willful
misconduct of Landlord, its agents or employees, Tenant hereby waives any claim
for damages for any injury or inconvenience to or interference with Tenant's
business and any loss of occupancy or quiet enjoyment of the Premises by reason
of Landlord's exercise of its rights or entry in accordance with this Article
13. Tenant shall not be entitled to an abatement or reduction of Rent Expenses,
in connection with any such entry.

14.  MAINTENANCE AND REPAIR

     14.1   LANDLORD'S OBLIGATIONS. Landlord shall as part of Expenses maintain
or cause to be maintained in good order, condition and repair the structural and
common portions of the Building and all Common Areas in the Project and the
Building systems consisting of the Building Standard heating, ventilating and
air conditioning system, the Building Standard electrical systems and the
Building Standard plumbing systems, but excluding any over-Building standard
systems in the Premises (such as Tenant's dedicated HVAC, kitchen plumbing and
modular furniture electrical systems) (except to the extent of damage caused by
Tenant which shall be repaired by Landlord at Tenant's expense). Landlord shall
not be liable, and neither Rent nor Expenses shall be abated, for any failure by
Landlord to maintain and repair areas which are being used in connection with
construction or reconstruction of improvements, or for any failure to make any
repairs or perform any maintenance, unless such failure shall persist for an
unreasonable time after written notice of the need thereof is given to Landlord
by Tenant. To the extent the provisions of this Article 14 are in conflict with
any statute now or hereafter in effect which would afford Tenant the right to
make repairs at Landlord's expense or to terminate this Lease, the provisions of
this Article 14 shall govern.

     14.2   TENANT'S OBLIGATIONS.

            14.2.1  Tenant shall, at its sole cost and expense, except for
     janitorial services furnished by Landlord pursuant to Article 12 hereof,
     maintain the Premises including all improvements therein in good order,
     condition and repair excluding preexisting structural defects and the
     removal or remediation of hazardous materials (for which Tenant, its
     agents, contractors, employees or invitees were not responsible for
     creating or bringing onto the Premises).

            14.2.2  In connection with Tenant surrendering possession of the
     Premises at the end of the Lease term, Tenant agrees to repair any damage
     caused by or in connection with the removal of any article of personal
     property, business or trade fixtures, machinery, equipment, cabinetwork,
     furniture, movable partitions or permanent improvements or additions,
     including without limitation thereto, repairing damage caused by Tenant to
     the floor and patching and painting the walls where required by Landlord to
     Landlord's reasonable satisfaction, all at Tenant's sole cost and expense.
     Tenant shall indemnify, defend and hold Landlord harmless against any loss,
     liability, cost or expense (including reasonable attorney's fees) resulting
     from delay by Tenant in so surrendering the Premises. Tenant's obligation
     hereunder shall survive the expiration or termination of this Lease.

            14.2.3  If Tenant fails to maintain the Premises in good order,
     condition and repair, Landlord shall give Tenant notice to do such acts as
     are reasonably required to so maintain the Premises. If Tenant thereafter
     fails to promptly commence such work and diligently prosecute it to
     completion, then Landlord shall have the right to do such acts and expend
     such funds at the expense of Tenant as are reasonably required to perform
     such work. Any amount so expended by Landlord (together with a charge for
     Landlord's administration and overhead equal to five percent (5%) thereof)
     shall be paid by Tenant promptly after demand. Landlord shall have no
     liability to Tenant for any inconvenience or interference with the use of
     the Premises by Tenant as a result of performing any such work.

     14.3   COMPLIANCE WITH LAW. Landlord and Tenant shall each do all acts
required to comply with all applicable laws, ordinances, and rules of any public
authority relating to their respective maintenance obligations as set forth
herein.

15.  ALTERATIONS AND ADDITIONS

     15.1   Tenant may recarpet and/or re-paint the Premises using Building
Standard materials and specifications (or better) without the prior consent of
Landlord. Otherwise, Tenant shall make no alterations, additions or improvements
to the Premises or any part thereof which affects the exterior appearance of the
Premises or the Building or any common portion of the Building or any portion of
the Common Area or the electrical, mechanical, plumbing or other systems in the
Building, without obtaining the prior written consent of Landlord in each
instance. Such consent may be granted or withheld at Landlord's sole discretion;
however, Landlord shall not unreasonably withhold its consent to any
alterations, additions, or improvements to the interior of the Premises,
provided the same does not (a) affect the exterior appearance of the Premises,
the Building or the Project, or (b) affect any structural portion of the
Premises, the Building or the Project, or (c) affect any electrical, mechanical,
plumbing or other systems of the Building, or (d) diminish the value of the
Premises, and further provided Tenant complies with the provisions this Section
15.1. Tenant shall be permitted to select a contractor and subcontractors from
Landlord's list of approved contractors and subcontractors, or such other
contractors and subcontractors as

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<PAGE>
 
Landlord shall approve in writing in advance of the commencement of such work;
provided, however, Landlord's designated contractors and subcontractors shall be
used for any work involving the mechanical, electrical, plumbing, heating,
ventilating and air conditioning systems and other Building systems and the
roof. Tenant may elect to have Landlord undertake such work of alterations and
additions and, provided Landlord agrees to undertake such work (which may be
granted or withheld in Landlord's sole discretion), then Tenant shall reimburse
Landlord for the cost thereof (together with a charge for Landlord's
administration and management thereof equal to five percent (5%) of the cost
incurred) within thirty (30) days after an invoice therefor is submitted to
Tenant. Landlord may impose as a condition to such consent such requirements as
Landlord may deem necessary in its sole discretion, including without limitation
the requirement that Landlord be furnished with working drawings before work
commences and that a bond be furnished (however, so long as Tenant hereunder is
Veterinary Centers of America, Inc., a Delaware corporation, such bond shall not
be required), and requirements relating to the manner in which the work is done,
the contractor by whom it is performed, and the times during which it is
accomplished, as well as the requirement that upon written request of Landlord
prior to the expiration or earlier termination of the Lease, Tenant will remove
at its expense any such alterations, improvements or additions to the Premises.
Any damage done to the Premises in connection with any such removal shall be
repaired at Tenant's sole cost and expense. Landlord may, in connection with any
such removal which reasonably might involve damaging the Premises, require that
such removal be performed by a bonded contractor or other person for which a
bond satisfactory to Landlord has been furnished covering the cost of repairing
the anticipated damage. Unless so removed, all such alterations, additions or
improvements shall at the expiration or earlier termination of the Lease become
the property of Landlord and remain upon the Premises. All such improvements,
alterations or additions must be done in a good and workmanlike manner and
diligently prosecuted to completion so that the Premises shall at all times be a
complete unit except during the period of work. Such improvements, alterations
or additions shall only be constructed by a contractor which is bondable. Tenant
shall deliver to Landlord upon commencement of such work a copy of the building
permit with respect thereto. Upon completion of such work Tenant shall file for
record in the office of the County Recorder where the Project is located a
Notice of Completion, as required or permitted by law. All such work shall be
performed and done strictly in accordance with the laws and ordinances relating
thereto and shall be performed so as not to unreasonably obstruct the access to
the premises of any other tenant in the Building or Project. Tenant agrees to
carry insurance as required by Article 17 covering any improvements, alterations
or additions to the Premises made by Tenant under the provisions of this Article
15, it being expressly agreed that none of such improvements, additions or
alterations shall be insured by Landlord under the insurance Landlord may carry
upon the Building, nor shall Landlord be required under any provision for
reconstruction to reinstall any such improvements, additions or alterations. In
addition, it is expressly agreed that if any tax is imposed, or the amount of
taxes on the Building or the Project is increased, by reason of any such
improvements, alterations or additions, Tenant shall be solely responsible
therefor under Article 7.

16.  INDEMNITY

     16.1   INDEMNIFICATION BY TENANT. Tenant shall indemnify, defend and hold
Landlord, its agents and employees, harmless from and against any and all
claims, liability, loss, cost or expense (including reasonable attorneys' fees)
arising out of or in connection with (i) any injury or damage to any person or
property occurring in, on or about the Premises or any part thereof or the
Building or Common Area, if such injury or damage is caused in part or in whole
by any act or omission by Tenant, its agents, contractors, employees or invitees
or (ii) any breach or default in the performance of any obligation on Tenant's
part to be performed under this Lease. If any action or proceeding is brought
against Landlord by reason of any such claim, upon notice from Landlord, Tenant
shall defend the same at Tenant's expense by counsel reasonably satisfactory to
Landlord. Tenant, as a material part of the consideration to Landlord, hereby
assumes all risk of damage to property or injury to persons in, upon or about
the Premises from any cause except Landlord's negligence or wrongful acts, and
Tenant hereby waives all claims with respect thereto against Landlord. The
foregoing provisions shall survive the termination of this Lease. The provisions
of this Section 16.1 are subject to the release and waiver contained in Section
17.7 below.

     16.2   EXEMPTION OF LANDLORD FROM LIABILITY. If the Premises, the Building,
or the Common Area, or any part thereof, is damaged by fire or other cause
against which Tenant is required to carry insurance pursuant to this Lease,
Landlord shall not be liable to Tenant for any loss, cost or expense arising out
of or in connection with such damage. Tenant hereby releases Landlord, its
directors, officers, shareholders, partners, employees, agents and
representatives, from any liability, claim or action arising out of or in
connection with such damage. Furthermore, Tenant shall, pursuant to Article 17,
maintain insurance against loss, injury, or damage which may be sustained by the
person, goods, wares, merchandise or property of Tenant, its agents,
contractors, employees, invitees or customers, or any other person in or about
the Premises, caused by or resulting from fire, steam, electricity, gas, water,
or rain, which may leak or flow from or into any part of the Premises or the
Building, or from the breakage, leakage, obstruction or other defects of the
pipes, sprinklers, wires, appliances, plumbing, air conditioning or lighting
fixtures of the same, whether such damage or injury results from conditions
arising within the Premises or other portions of the Building, or from other
sources, and Landlord shall not be liable therefor, unless caused by Landlord's
negligence or wrongful act, and in that event only to the extent not covered by
the insurance which Tenant is required to carry pursuant to this Lease. Landlord
shall not be liable to Tenant for any damages arising out of or in connection
with any act or omission of any other tenant in the Project or for losses due to
theft or burglary or other wrongful acts of third parties.

     16.3   INDEMNIFICATION BY LANDLORD. Landlord shall indemnify, defend and
hold Tenant, its agents and employees, harmless from and against any and all
claims, liability, loss, cost or expense (including reasonable attorneys' fees,
but excluding consequential damages) arising out of or in connection with (a)
any injury or damage to any person or property occurring in, on or about the
Premises or any part thereof or the Building or Common

                                      11
<PAGE>
 
Area, to the extent such injury or damage is caused by any act or omission by
Landlord, its agents, contractors, employees or invitees, or (b) any breach or
default in the performance of any obligation on Landlord's part to be performed
under this Lease. If any action or proceeding is brought against Tenant by
reason of any such claim, upon notice from Tenant, Landlord shall defend the
same at Landlord's expense by counsel reasonably satisfactory to Tenant. The
foregoing provisions shall survive the termination of this Lease. The provisions
of this Section 16.3 are subject to the release and waiver contained in Section
17.7 below.

17.  INSURANCE

     17.1   GENERAL. All insurance required to be carried by Tenant hereunder
shall be issued by responsible insurance companies acceptable to Landlord and
the holder of any deed of trust or mortgage secured by any portion of the
Premises (hereinafter referred to as a "Mortgagee"). All policies of insurance
provided for herein shall be issued by insurance companies with general
policyholder's rating of not less than A and a financial rating of not less than
Class X as rated in the most current available "Best Insurance Reports". Each
policy shall name Landlord and at Landlord's request any Mortgagee and an agent
of Landlord as an additional insured, as their respective interests may appear.
Tenant shall deliver certificates of such insurance to Landlord, evidencing the
existence and amounts of such insurance prior to Tenant's occupancy in the
Premises. Failure to make such delivery shall constitute a material default by
Tenant under this Lease. All policies of insurance delivered to Landlord must
contain a provision that the company writing said policy will give Landlord ten
(10) days prior written notice of any modification, cancellation or lapse or
reduction in the amounts of insurance. All public liability, property damage and
other casualty insurance policies shall be written as primary policies, not
contributing with, and not in excess of coverage which Landlord may carry.
Tenant shall furnish Landlord with renewals or "binders" of any such policy at
least thirty (30) days prior to the expiration thereof. Tenant agrees that if
Tenant does not procure and maintain such insurance, Landlord shall provide
Tenant written notice thereof and Tenant shall thereafter have five (5) business
days to procure such insurance and provide Landlord with evidence therein (as
required herein). If Tenant shall fail to procure such insurance and provide
such evidence to Landlord within such five-business-day period, then Landlord
may (but shall not be required to) obtain such insurance on Tenant's behalf and
charge Tenant the premiums therefor together with a twenty-five percent (25%)
handling charge, payable upon demand. Tenant may carry such insurance under a
blanket policy provided such blanket policy expressly affords the coverage
required by this Lease and contains a per location aggregate endorsement and
evidence thereof is furnished to Landlord as required above.

     17.2   CASUALTY INSURANCE. At all times during the term hereof, Tenant
shall maintain in effect policies of casualty insurance covering (i) all
improvements in, on or to the Premises (including any Building Standard
furnishings, and any alterations, additions or improvements as may be made by
Tenant), and (ii) trade fixtures, merchandise and other personal property from
time to time in, on or upon the Premises. Such policies shall include coverage
in an amount not less than one hundred percent (100%) of the actual replacement
cost thereof from time to time during the term of this Lease Such policies shall
provide protection against any peril included within the classification "Fire
and Extended Coverage", against vandalism and malicious mischief, theft,
sprinkler leakage, earthquake sprinkler leakage, and against flood damage (and
including cost of demolition and debris removal). Replacement cost for purposes
hereof shall be determined by an accredited appraiser selected by mutual
agreement between Landlord and Tenant. The proceeds of such insurance shall be
used for the repair or replacement of the property so insured. Upon termination
of this Lease following a casualty as set forth in Article 18, the proceeds
under (i) above shall be paid to Landlord, and the proceeds under (ii) above
shall be paid to Tenant.

     17.3   LIABILITY INSURANCE. Tenant shall at all times during the term
hereof obtain and continue in force bodily injury liability and property damage
liability insurance adequate to protect Landlord against liability for injury to
or death of any person in connection with the activities of Tenant in, on or
about the Premises or with the use, operation or condition of the Premises. Such
insurance at all times shall be in an amount of not less than Two Million
Dollars ($2,000,000) for injuries to persons in one (1) accident, not less than
One Million Dollars ($1,000,000) for injury to any one (1) person and not lease
than Five Hundred Thousand Dollars ($500,000) with respect to damage to
property. The limits of such insurance do not necessarily limit the liability of
Tenant hereunder. All public liability and property damage policies shall
contain a provision that Landlord, although named as an additional insured,
shell nevertheless be entitled to recovery under said policies for any loss
occasioned to it, its partners, agents and employees by reason of the negligence
of Tenant.

     17.4   WORKERS' COMPENSATION INSURANCE. Tenant shall, at all times during
the term hereof, maintain in effect workers' compensation insurance as required
by applicable statutes.

     17.5   INTENTIONALLY OMITTED.

     17.6   LANDLORD'S INSURANCE. Landlord shall at all times from and after
substantial completion of the Premises maintain in effect as an item of Expense
a policy or policies of insurance covering the Common Area and the buildings in
the Project in an amount of not less than eighty percent (80%) of the actual
replacement cost thereof (exclusive of the cost of excavations, foundations and
footings) from time to time during the term of this Lease, providing protection
against rental loss and any peril generally included in the classification "Fire
and Extended Coverage" which may include insurance against sprinkler damage,
vandalism, malicious mischief, earthquake and third party liability, and
including such coverages in such amounts as Landlord may designate Landlord's
obligation to carry the insurance provided for herein may be brought within the
coverage of any so-called blanket policy or policies of insurance carried and
maintained by Landlord, provided that the coverage afforded will not be reduced
or diminished by reason of the use of such blanket policy of insurance.

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<PAGE>
 
     17.7   WAIVER OF SUBROGATION. Landlord and Tenant each hereby waives any
and all rights of recovery against the other or against the directors, officers,
shareholders, partners, employees, agents and representatives of the other, on
account of loss or damage of such waiving party or its property, or the property
of others under its control, to the extent that such loss or damage is insured
against under any fire and extended coverage insurance policy which either may
have in force at the time of such loss or damage. The provisions of this Section
17.7 shall control over any conflicting provisions of this Lease. Tenant shall,
upon obtaining the policies of insurance required under this Lease, give notice
to its insurance carrier(s) that the foregoing mutual waiver of subrogation is
contained in this Lease. The waivers set forth herein shall be required to the
extent that same are available from each party's insurer without additional
premium, if an extra charge is incurred to obtain such waiver, it shall be paid
by the party in whose favor the waiver runs within fifteen (15) days after
written notice from the other party.

18.  DAMAGE AND DESTRUCTION

     18.1   PARTIAL DAMAGE--INSURED. If the Premises, Building or Common Area
are damaged by a risk covered under fire and extended coverage insurance
protecting Landlord, then Landlord shall restore such damage provided insurance
proceeds are available to Landlord to pay eighty percent (80%) or more of the
cost of restoration, and provided such restoration by Landlord can be completed
within six (6) months after the commencement of work, in the professional and
independent opinion of a registered architect or engineer appointed by Landlord.
In such event this Lease shall continue in full force and effect so long as the
Premises can be used by Tenant, except that Tenant shall be entitled to an
equitable reduction of Rent and Expenses while such restoration takes place,
such reduction to be based upon the extent to which the damage and the
restoration efforts actually, materially interfere with Tenant's use of the
Premises.

     18.2   PARTIAL DAMAGE--UNINSURED. If the Premises, Building or Common Area
are damaged by a risk not covered by such insurance or the insurance proceeds
available to Landlord are less than eighty percent (80%) of the cost of
restoration, or if the restoration cannot be completed within six (6) months
after the commencement of work in the professional and independent opinion of
the registered architect or engineer appointed by Landlord, then Landlord shall
have the option either to (i) repair or restore such damage, this Lease
continuing in full force and effect so long as the Premises can be used by
Tenant, but the Rent end Expenses to be equitably reduced as hereinabove
provided, or (ii) give notice to Tenant at any time within ninety (90) days
after such damage terminating this Lease as of a date to be specified in such
notice, which date shall be not less than thirty (30) nor more than sixty (60)
days after giving such notice. If such notice is given, this Lease shall expire
and any interest of Tenant in the Premises shall terminate on the date specified
in such notice and the Rent and Expenses, reduced by an equitable reduction
(except as hereinabove provided) based upon the extent, if any, to which such
damage directly and materially interfered with Tenant's use of the Premises,
shall be paid to the date of such termination, and Landlord agrees to refund to
Tenant any Rent or Expenses theretofore paid in advance for any period of time
subsequent to such termination date.

     18.3   TOTAL DESTRUCTION. If the Premises are totally destroyed (i.e, over
eighty percent (80%) of the Premises is destroyed or if Tenant cannot use the
Premises without major restoration) or if in Landlord's judgment the Premises
cannot be restored as set forth above, then, notwithstanding the availability of
insurance proceeds, this Lease shall be terminated effective as of the date of
the damage.

     18.4   LANDLORD'S OBLIGATIONS. Landlord shall not be required to carry
insurance of any kind on Tenant's property and shall not in the absence of
Landlord's negligence or wrongful acts be required to repair any injury or
damage thereto by fire or other cause, or to make any restoration or replacement
of any paneling, decorations, partitions, ceilings, floor covering, office
fixtures or any other improvements or property installed in the Premises by or
at the direct or indirect expense of Tenant, and Tenant shall be required to
restore or replace same in the event of damage and shall have no claim against
Landlord for any loss suffered by reason of any such damage, destruction, repair
or restoration. Notwithstanding anything to the contrary contained in this
Article 18, Landlord shall have the option not to repair, reconstruct or restore
the Premises with respect to damage or destruction as described in this Article
18 occurring during the last twelve (12) months of the term of this Lease or any
extension thereof, provided, however, that if Landlord exercises such option
this Lease shall be terminated upon such exercise.

     18.5   WAIVER BY TENANT. It is expressly agreed that this Article 18 shall
govern the rights of Landlord and Tenant in the event of damage and destruction
and supersedes the provisions of any statutes with respect to any damage or
destruction of the Premises.

19.  CONDEMNATION

     19.1   If all or a substantial part of the Premises, Building or Common
Area is taken or appropriated for public or quasi-public use by the right of
eminent domain or otherwise by a taking in the nature of inverse condemnation,
with or without litigation, or is transferred by agreement in lieu thereof (any
of the foregoing being referred to herein as a "taking"), either party hereto
may, by written notice given to the other within thirty (30) days of receipt of
notice of such taking, elect to terminate this Lease as of the date possession
is transferred pursuant to the taking; provided, however, that before such party
may terminate this Lease for a taking, such taking shall be of such an extent
and nature as to economically frustrate its business therein, or to
substantially handicap, impede or impair its use thereof. No award for any
partial or entire taking shall be apportioned, and Tenant thereby assigns to
Landlord any and all rights of Tenant now or hereafter arising in or to the same
or any part thereof; provided, however, that Tenant may file a separate claim
for an award and nothing contained herein shall be deemed to give Landlord any
interest in, or to require Tenant to assign to Landlord, any award made to
Tenant for the taking of

                                      13
<PAGE>
 
personal property belonging to Tenant. In the event of a taking which does not
result in a termination of this Lease, Rent and Expenses shall be equitably
reduced to the extent Tenant's business in or use of the Premises is
economically impaired as described above. No temporary taking of the Premises or
any part of the Project shall terminate this Lease, or give Tenant any right to
any abatement of Rent or Expenses hereunder, except that Rent and Expenses shall
be equitably reduced as described above during that portion of any temporary
taking. To the extent the provisions of this Article 19 conflict with California
Code of Civil Procedure Section 1265.130 allowing either party to petition the
court to terminate this Lease for a partial taking, the provisions of this
Article 19 shall govern.

20.  LIENS

     20.1   Tenant shall keep the Premises, the Building and the Project free
from any liens arising out of work performed, materials furnished, or
obligations incurred by Tenant, and shall indemnify, hold harmless and defend
Landlord from any liens and encumbrances arising out of any work performed or
materials furnished by or at the direction of Tenant. Tenant shall give Landlord
at least ten (10) business days' prior written notice of the expected date of
commencement of work relating to alterations, improvements, or additions to the
Premises and if requested by Landlord shall secure a completion and indemnity
bond for said work, satisfactory to Landlord, in an amount at least equal to one
and one-half (1 1/2) times the estimated cost of such work (however, so long as
Veterinary Centers of America, Inc., a Delaware corporation, is Tenant
hereunder, such bond shall not be required). Landlord shall have the right at
all times to keep posted on the Premises any notices permitted or required by
law, or which Landlord shall deem proper, for the protection of Landlord and the
Premises, and any other party having any interest therein, against mechanic's
and materialmen's liens. If any claim of lien is filed against the Premises or
any part of the Project or any similar action affecting title to such property
is commenced, the party receiving notice of such lien or action shall
immediately give the other party written notice thereof. If Tenant fails, within
twenty (20) days following the imposition of any lien, to cause such lien to be
released of record by payment or posting of a proper bond, Landlord shall have,
in addition to all other remedies provided herein and by law, the right (but not
the obligation) to cause the same to be released by such means as it shall deem
proper, including payment of the claim giving rise to such lien. All such sums
paid by Landlord and all costs and expenses incurred by it in connection
therewith (including reasonable attorneys' fees) shall be payable to Landlord by
Tenant on demand, with interest at the Agreed Rate from the date of expenditure.

21.  DEFAULTS BY TENANT

     21.1   The occurrence of any one or more of the following events shall
constitute a material default and breach of this Lease by Tenant:

            21.1.1  The abandonment of the Premises by Tenant.

            21.1.2  The failure by Tenant to make any payment of Rent or
     Expenses or of any other sum required to be made by Tenant hereunder,
     within five (5) business days after written demand therefor (which notice
     shall serve as the notice required under Section 1161 of the California
     Code of Civil Procedure or any similar or superseding statute).

            21.1.3  The failure by Tenant to observe or perform any of the
     covenants, conditions or provisions of this Lease to be observed or
     performed by Tenant, if such failure is not cured within thirty (30) days
     after written notice thereof from Landlord to Tenant; provided, however,
     that if the nature of Tenant's default is such that it cannot be cured
     solely by payment of money and more than thirty (30) days are reasonably
     required for its cure, then Tenant shall not be deemed to be in default if
     Tenant commences such cure within the thirty (30) day period and thereafter
     diligently prosecutes such cure to completion; provided, further, that
     violations by Tenant of the Rules and Regulations described in Article 36
     which materially interfere with the rights of other tenants to the extent
     such tenant(s) could make a claim against Landlord or exercise any remedy
     under their lease or at law or which constitute a material nuisance or
     hazard to person or property shall be cured by Tenant within forty-eight
     (48) hours after written notice thereof from Landlord, failing which
     Landlord may (but need not) cure same, in which event Tenant shall pay
     Landlord, within ten (10) days after written notice thereof by Landlord,
     the amount expended by Landlord to effect such cure together with an
     administrative charge of fifteen percent (15%) of the amount thereof.

            21.1.4  The making by Tenant of any general assignment for the
     benefit of creditors, the filing by or against Tenant of a petition to have
     Tenant adjudged a bankrupt or of a petition for reorganization or
     arrangement under any law relating to bankruptcy (unless, in the case of a
     petition filed against Tenant, the same is dismissed within sixty (60)
     days) or, the appointment of a trustee or receiver to take possession of,
     or the attachment, execution or other judicial seizure of, substantially
     all of Tenant's assets located at the Premises or of Tenant's interest in
     this Lease, where such seizure is not discharged within thirty (30) days.

            21.1.5  Intentionally Omitted.

     21.2   Any notice required or permitted by this Article 21 is intended to
satisfy to the maximum extent possible any and all notice requirements imposed
by law on Landlord. Landlord may serve a statutory notice to quit, a statutory
notice to pay rent or quit, or a statutory notice of default, as the case may
be, to effect the giving of any notice required by this Article 21.

                                      14
<PAGE>
 
22.  LANDLORD'S REMEDIES

     22.1   In the event of any material default or breach of this Lease by
Tenant, Landlord may at any time thereafter, without limiting Landlord in the
exercise of any other right or remedy at law or in equity which Landlord may
have (all remedies provided herein being non-exclusive and cumulative), do any
one or more of the following:

            22.1.1  Maintain this Lease in full force and effect and recover the
     Rent, Expenses and other monetary charges as they become due, without
     terminating Tenant's right to possession irrespective of whether Tenant
     shall have abandoned the Premises. If Landlord does not elect to terminate
     the Lease, Landlord shall have the right to attempt to relet the Premises
     at such rent and upon such conditions, and for such a term, as Landlord
     deems appropriate in its sole discretion and to do all acts necessary with
     regard thereto, without being deemed to have elected to terminate the
     Lease, including re-entering the Premises to make repairs or to maintain or
     modify the Premises, and removing all persons and property from the
     Premises, which property if removed may at Landlord's election be abandoned
     or stored in a public warehouse or elsewhere at the cost of and for the
     account of Tenant. Reletting may be for a period shorter or longer than the
     remaining term of this Lease, and for more or less rent, but Landlord shall
     have no obligation to relet at less than prevailing market rental rates. If
     reletting occurs, this Lease shall terminate automatically when the new
     tenant takes possession of the Premises and commences rent payment.
     Notwithstanding that Landlord fails to elect to terminate the Lease
     initially, Landlord at any time thereafter may elect to terminate the Lease
     by virtue of any uncured default by Tenant. In the event of any such
     termination, Landlord shall be entitled to recover from Tenant any and all
     damages incurred by Landlord by reason of Tenant's default (including,
     without limitation, the damages described in Section 22.1.2 below), as well
     as all costs of reletting, including commissions, reasonable attorneys'
     fees, restoration or remodeling costs, and costs of advertising.

            22.1.2  Terminate Tenant's right to possession by any lawful means,
     in which case this Lease shall terminate and Tenant shall immediately
     surrender possession of the Premises to Landlord. In such event Landlord
     shall be entitled to recover from Tenant all damages incurred by Landlord
     by reason of Tenant's default including (without limitation) the following:
     (1) the worth at the time of award of any unpaid Rent which had been earned
     at the time of such termination; plus (2) the worth at the time of award of
     the amount by which the unpaid Rent which would have been earned after
     termination until the time of award exceeds the amount of such Rent loss
     that Tenant proves could have been reasonably avoided; plus (3) the worth
     at the time of award, of the amount by which the unpaid Rent for the
     balance of the term after the time of award exceeds the amount of such Rent
     loss that Tenant proves could have been reasonably avoided; plus (4) any
     other amount, and court costs, necessary to compensate Landlord for all the
     detriment proximately caused by Tenant's default or which in the ordinary
     course of things would be likely to result therefrom (including, without
     limiting the generality of the foregoing, the amount of any commissions
     and/or finder's fee for a replacement tenant); plus (5) at Landlord's
     election, such other amounts in addition to or in lieu of the foregoing as
     may be permitted from time to time by applicable law. As used in
     subparagraphs (1) and (2) of this Section 22.1.2, the "worth at the time of
     award" is to be computed by allowing interest at the then maximum rate of
     interest allowable under law which could be charged Tenant by Landlord,
     and, as used in subparagraph (3) of this Section 22.1.2, the "worth at the
     time of award" is to be computed by discounting such amount at the discount
     rate of the U.S. Federal Reserve Bank of San Francisco at the time of
     award, plus one percent (1%). The term "Rent", as used in this Article 22,
     shall be deemed to be and to mean all Rent, Expenses, parking fees and
     other monetary sums required to be paid by Tenant pursuant to this Lease or
     as defined in Section 4.1 hereof. For the purpose of determining the amount
     of "unpaid Rent which would have been earned after termination" or the
     "unpaid Rent for the balance of the term" (as referenced in subparagraphs
     (2) and (3) hereof), the amount of parking fees and Expenses shall be
     deemed to increase annually for the balance of the term by an amount equal
     to the average annual percentage increase in parking fees and Expenses
     during the three (3) calendar years preceding the year in which the Lease
     was terminated, or, if such termination shall occur prior to the expiration
     of the third calendar year occurring during the term of this Lease, then
     the amount of parking fees and Expenses shall be deemed to increase monthly
     for the balance of the term by an amount equal to the average monthly
     percentage increase in parking fees and Expenses during all of the calendar
     months preceding the month in which the Lease was terminated.

            22.1.3  Collect sublease rents (or appoint a receiver to collect
     such rent) and otherwise perform Tenant's obligations at the Premises, it
     being agreed, however, that neither the filing of a petition for the
     appointment of a receiver for Tenant nor the appointment itself shall
     constitute an election by Landlord to terminate this Lease.

            22.1.4  Proceed to cure the default at Tenant's sole cost and
     expense, without waiving or releasing Tenant from any obligation hereunder.
     If at any time Landlord pays any sum or incurs any expense as a result of
     or in connection with curing any default of Tenant (including any
     administrative fees provided for herein and reasonable attorneys' fees),
     the amount thereof shall be immediately due as of the date of such
     expenditure and, together with interest at the Agreed Rate from the date of
     such expenditures, shall be paid by Tenant to Landlord immediately upon
     demand, and Tenant hereby covenants to pay any and all such sums.

            22.1.5  If Tenant is not occupying the Premises, retain possession
     of all of Tenant's fixtures, furniture, equipment, improvements, additions
     and other personal property left in the Premises or, at 

                                      15
<PAGE>
 
     Landlord's option, at any time, to require Tenant to forthwith remove same,
     and if not so removed to deem them abandoned and dispose of same.

            22.1.6  ADDITIONAL REMEDIES. Upon the occurrence of any of the
     events specified in Section 21.1.4 or Section 21.1.5, if Landlord shall
     elect not to exercise, or by law shall not be able to exercise. its right
     hereunder to terminate this Lease, then, in addition to any other rights or
     remedies of Landlord under this Lease or provided by law: (i)
     [intentionally omitted]; and (ii) neither Tenant, as debtor in possession,
     nor any trustee or other person (collectively, the "Assuming Tenant") shall
     be entitled to assume this Lease, unless on or before the date of such
     assumption, the Assuming Tenant (A) cures, or provides adequate assurance
     that such Assuming Tenant will promptly cure, any existing default under
     this Lease; (B) compensates, or provides adequate assurance that the
     Assuming Tenant will promptly compensate Landlord for any loss (including,
     without limitation, reasonable attorneys' fees and disbursements, including
     on appeal and in connection with any bankruptcy) resulting from such
     default; and (C) provides adequate assurance of future performance under
     this Lease Tenant covenants and agrees that, for such purposes (i) any cure
     or compensation shall be effected by the immediate payment of any monetary
     default or any required compensation, or the immediate correction
     acceptable to Landlord of any non-monetary default; (ii) any "adequate
     assurance" of such cure or compensation shall be effected by the
     establishment of an escrow fund for the amount at issue or by other method
     acceptable to Landlord; and (iii) "adequate assurance" of future
     performance shall be effected by the establishment of an escrow fund for
     the amount at issue or other method acceptable to Landlord. Provided,
     further, upon the occurrence of any of the events specified in Section
     21.1.4 prior to the date fixed as the Commencement Date (whether or not
     such default is cured within the time period, if any, provided in such
     Article), this Lease shall inso facto be canceled and terminated. In such
     event, (i) neither Tenant nor any person claiming through or under Tenant,
     or by virtue of any statute or order of any Court, shall be entitled to
     possession of the Premises; and (ii) in addition to such other rights and
     remedies provided in this Article 22, Landlord may retain as damages any
     Rent, Security Deposit (if any) or monies received from Tenant or others on
     account of Tenant. The foregoing is a material consideration to Landlord
     for the execution of this Lease.

     22.2   All covenants and agreements to be performed by Tenant under this
Lease shall be performed by Tenant at Tenant's sole cost and expense and, except
as otherwise expressly permitted in this Lease, without any offset to or
abatement of Rent or Expenses.

23.  DEFAULTS BY LANDLORD

     23.1   Landlord shall not be deemed to be in default in the performance of
any obligation under this Lease unless and until it has failed to perform such
obligation within thirty (30) days after receipt of written notice by Tenant to
Landlord specifying such failure; provided, however, that if the nature of
Landlord's default is such that more than thirty (30) days are required for its
cure, then Landlord shall not be deemed to be in default if it commences such
cure within the thirty (30)-day period and thereafter diligently prosecutes such
cure to completion. Tenant agrees to give any Mortgagee a copy, by certified
mail, of any notice of default served upon Landlord, provided that prior to such
notice Tenant has been notified in writing (by way of Notice of Assignment of
Rents and Leases, or otherwise) of the address of such Mortgage. Tenant further
agrees that if Landlord shall have failed to cure such default within the time
provided for in this Lease, then any such Mortgagee shall have an additional
forty-five (45) days within which to have the right, but not the obligation, to
cure such default on the part of the Landlord or if such default cannot be cured
within that time. then such additional time as may be necessary if within that
forty-five (45) days the Mortgagee has commenced and is pursuing the remedies
necessary to cure such default (including but not limited to commencement of
foreclosure proceedings, if necessary, to effect such cure), in which event this
Lease shall not be terminated while such remedies are being so pursued. If
Tenant recovers any judgment against Landlord for a default by Landlord of this
Lease, the judgment shall be satisfied only out of the interest of Landlord in
the Project and neither Landlord nor any of its partners, shareholders,
officers, directors, employees or agents shall be personally liable for any such
default or for any deficiency.

24.  COSTS OF SUIT

     24.1   If either party brings action for relief against the other,
declaratory or otherwise. arising out of this Lease, including any suit by
Landlord for the recovery of Rent or possession of the Premises, the losing
party shall pay the successful party its costs incurred in connection with and
in preparation for said action, including its reasonable attorneys' fees. If
Landlord, without fault on Landlord's part, is made a party to any action
instituted by Tenant against a third party or by a third party against Tenant or
by or against any person holding under or using the Premises by license of
Tenant, or for the foreclosure of any lien for labor or material furnished to or
for Tenant or any such other person, or otherwise arising out of or resulting
from any act or omission of Tenant or of any such other person, Tenant shall at
its cost and at Landlord's option defend Landlord therefrom and further, except
to the extent Landlord is found separately liable for its own negligence or
wrongful acts, indemnify and hold Landlord harmless from any judgment rendered
in connection therewith and all costs and expenses (including reasonable
attorneys' fees) incurred by Landlord in connection with such action.

25.  SURRENDER OF PREMISES; HOLDING OVER

     25.1   SURRENDER. On expiration or termination of this Lease, Tenant shall
surrender to Landlord the Premises, and all Tenant's improvements thereto and
alterations thereof, broom clean and in good condition (except for ordinary wear
and tear, destruction to the Premises covered by Article 18 of this Lease, and
for alterations that Tenant has the right to remove or is obligated to remove,
so long as Tenant repairs any damage to the Premises

                                      16
<PAGE>
 
under the provisions of this Article 25 or Article 15), and shall remove all of
its personal property including any signs, notices and displays. Tenant shall
perform all restoration made necessary by the removal of any such improvements
or alterations or personal property, prior to the expiration of the Lease term.
If any such removal would damage the Building structure, Tenant shall give
Landlord prior written notice thereof and Landlord may elect to make such
removal at Tenant's expense or otherwise to require Tenant to post security for
such restoration. Landlord may retain or dispose of in any manner any such
improvements or alterations or personal property that Tenant does not remove
from the Premises on expiration or termination of the term as allowed or
required by this Lease and title to any such improvements or alterations or
personal property that Landlord so elects to retain or dispose of shall vest in
Landlord. Tenant waives all claims against Landlord for any damage or loss to
Tenant arising out of Landlord's retention or disposition of any such
improvements, alterations or personal property and shall be liable to Landlord
for Landlord's costs of storing, removing and disposing of any such
improvements, alterations or personal property which Tenant fails to remove from
the Premises. Tenant shall indemnify, defend and hold Landlord harmless from all
damages, loss, cost and expense (including reasonable attorneys' fees) arising
out of or in connection with Tenant's failure to surrender the Premises in
accordance with this Section 25.1.

     25.2   HOLDING OVER. It Tenant holds over after the term hereof, such
tenancy shall be at sufferance only, and not a renewal hereof or an extension
for any further term, and in such case Rent shall be payable at a rental in the
amount of one hundred fifty percent (150%) of the Rent in effect as of the last
month of the term hereof and at the time specified in this Lease, and such
tenancy shall be subject to every other term, covenant and agreement contained
herein other than any provisions for rent concessions, any obligation of
Landlord to undertake any work of improvement upon the Premises or optional
rights of Tenant requiring Tenant to exercise same by written notice (such as
options to extend the term of the Lease). The foregoing shall not, however, be
construed as a consent by Landlord to any holding over by Tenant and Landlord
reserves the right to require Tenant to surrender possession of the Premises
upon expiration or termination of this Lease.

26.  SURRENDER OF LEASE

     26.1   The voluntary or other surrender of this Lease by Tenant, or a
mutual cancellation thereof, shall not work as a merger. Such surrender or
cancellation shall, at the option of Landlord, terminate all or any existing
subleases or subtenancies, or may, at the option of Landlord, operate as an
assignment to it of any or all such subleases or subtenancies. The delivery of
keys to the Premises to Landlord or its agent shall not, of itself, constitute a
surrender and termination of this Lease.

27.  TRANSFER OF LANDLORD'S INTEREST

     27.1   If Landlord sells or transfers its interest in the Premises (other
than a transfer for security purposes) Landlord shall be released from all
obligations and liabilities accruing thereafter under this Lease, if Landlord's
successor has assumed in writing Landlord's obligations under this Lease. Any
Security Deposit, prepaid Rent or other funds of Tenant in the hands of Landlord
at the time of transfer shall be delivered to such successor and Tenant agrees
to attorn to the purchaser or assignee, provided all Landlord's obligations
hereunder are assumed in writing by such successor. Notwithstanding the
foregoing, Landlord's successor shall not be liable to Tenant for any such funds
of Tenant which Landlord does not deliver to the successor.

28.  ASSIGNMENT AND SUBLETTING

     28.1   LANDLORD'S CONSENT REQUIRED. Tenant shall not sell, assign,
mortgage, pledge, hypothecate or encumber this Lease (any such act being
referred to herein as an "assignment"), and shall not sublet the Premises or any
part thereof, without the prior written consent of Landlord in each instance,
which consent shall not be unreasonably withheld, and any attempt to do so
without such consent shall be voidable by Landlord and, at Landlord's election,
shall constitute a material default under this Lease.

     28.2   TENANT'S APPLICATION. If Tenant desires at any time to assign this
Lease (which assignment shall in no event be for less than its entire interest
in this Lease) or to sublet the Premises or any portion thereof and such
transaction requires Landlord's consent pursuant to the provisions of this
Article 28, Tenant shall submit to Landlord at least thirty (30) days prior to
the proposed effective date of the transaction ("Proposed Effective Date"), in
writing, a notice of intent to assign or sublease, setting forth: (i) the
Proposed Effective Date, which shall be no less than thirty (30) nor more than
ninety (90) days after the sending of such notice; (ii) the name of the proposed
subtenant or assignee; (iii) the nature of the proposed subtenant's or
assignee's business to be carried on in the Premises; and (iv) a description of
the terms and provisions of the proposed sublease or assignment. Such notice
shall be accompanied by (i) such financial information as Landlord may request
concerning the proposed subtenant or assignee, including recent financial
statements and bank references; (ii) evidence satisfactory to Landlord that the
proposed subtenant or assignee will immediately occupy and thereafter use the
affected portion of the Premises for the entire term of the sublease or
assignment agreement; (iii) a conformed or photostatic copy of the proposed
sublease or assignment agreement; and (iv) any fee required under Section 28.9.
During the time that Landlord has in which to exercise the options available to
Landlord upon the giving of such notice, as hereinafter described, Tenant shall
not sublet all or any part (of the Premises nor assign all or any part of this
Lease.

     28.3   LANDLORD'S OPTION TO RECAPTURE PREMISES. If Tenant proposes to
sublease all or part of the Premises for the balance of the Lease term, Landlord
may, at its option upon written notice to Tenant given within thirty (30) days
after its receipt of the above-described notice from Tenant, elect to recapture
such portion of the Premises as Tenant proposes to sublease and upon such
election by Landlord, this Lease shall terminate as to the portion of the
Premises recaptured. In the event a portion only of the Premises is recaptured,
the Rental payable

                                      17
<PAGE>
 
under this Lease, the Security Deposit, and Tenant's Share shall be
proportionately reduced based on the rentable square footage retained by Tenant
and the rentable square footage leased by Tenant hereunder immediately prior to
such recapture and termination, and Landlord and Tenant shall thereupon execute
an amendment of this Lease in accordance therewith. If Landlord recaptures only
a portion of the Premises, it shall construct and erect at its sole cost such
partitions as may be required to separate the space retained by Tenant from the
space recaptured by Landlord; provided, however, that said partitions need only
be finished in Building Standard condition. Landlord may, at its option, lease
the recaptured portion of the Premises to the proposed subtenant without
liability to Tenant. If Landlord does not elect to recapture pursuant to this
Section 28.3, Tenant may thereafter enter into a valid sublease with respect to
the Premises, provided Landlord, pursuant to this Article 28, consents thereto,
and provided further that (i) the sublease is executed within ninety (90) days
after notification to Landlord of such proposal, and (ii) the rental therefor is
not less than that stated in such notification. Any termination as provided in
this Section 28.3 shall be subject to the written consent of any Mortgagee of
Landlord. The effective date of any such termination shall be the Proposed
Effective Date so long as Tenant has complied with the provisions of Section
28.2 above, and otherwise shall be as specified in Landlord's notice of
termination.

     28.4   APPROVAL/DISAPPROVAL STANDARDS. In the event that Tenant complies
with the provisions of Section 28.2, and Landlord does not exercise an option
provided to Landlord under Section 28.3, Landlord's consent to a proposed
assignment or sublease shall not be unreasonably withheld. In determining
whether to grant or withhold consent to a proposed assignment or sublease,
Landlord may consider any reasonable factor. Without limiting what may be
construed as a reasonable factor, it is hereby agreed that any one of the
following factors will be reasonable grounds for disapproval of a proposed
assignment or sublease:

            28.4.1    Tenant has not complied with the requirements set forth in
     Section 28.2 above;

            28.4.2    The proposed assignee or subtenant does not have
     sufficient financial worth, considering the responsibility involved;

            28.4.3    The proposed assignee or subtenant does not, in Landlord's
     reasonable judgment, have a good reputation as a tenant of property;

            28.4.4    Landlord has had prior negative leasing experience with
     the proposed assignee or subtenant;

            28.4.5    The use of the Premises by the proposed assignee or
     subtenant will not be identical to the use permitted by this Lease;

            28.4.6    In Landlord's reasonable judgment, the proposed assignee
     or subtenant is engaged in a business, and the Premises, or the relevant
     part thereof, will be used in a manner, that is not in keeping with the
     then current standards of the Building, or that will violate any
     restrictive or exclusive covenant as to use contained in any other lease of
     space in the Building or the Project;

            28.4.7    The use of the Premises by the proposed assignee or
     subtenant will violate any applicable law, ordinance or regulation;

            28.4.8    Intentionally Omitted;

            28.4.9    The proposed assignee or subtenant is a person from whom
     Landlord has received a signed letter of intent to lease space in the
     Building or the Project; or,

            28.4.10   Intentionally Omitted;

            28.4.11   The proposed assignment or sublease fails to include all
     of the terms and provisions required to be included therein pursuant to
     this Article 28.

            28.4.12   Intentionally Omitted.

     28.5   APPROVAL/DISAPPROVAL PROCEDURE. Landlord shall approve or disapprove
the proposed assignment or sublease by written notice to Tenant. If Landlord
shall exercise any option to recapture the Premises as herein provided, or
denies a request for consent to a proposed sublease or assignment, Landlord
shall not be liable to the proposed assignee or subtenant, or to any broker or
other person claiming a commission or similar compensation in connection with
the proposed assignment or sublease. If Landlord approves the proposed
assignment or sublease, Tenant shall, prior to the Proposed Effective Date,
submit to Landlord all executed originals of the assignment or sublease
agreement and, in the event of a sublease, Landlord's customary and reasonable
consent to subletting form executed by Tenant and sublessee for execution by
Landlord. Provided such assignment or sublease agreement is in accordance with
the terms approved by Landlord, Landlord shall execute each original as
described above and shall retain two originals for its file and return the
others to Tenant. No purported assignment or sublease shall be deemed effective
as against Landlord and no proposed assignee or subtenant shall take occupancy
unless such document is delivered to Landlord in accordance with the foregoing.

     28.6   REQUIRED PROVISIONS. Any and all assignment or sublease agreements
shall (i) contain such terms as are described in Tenant's notice under Section
28.2 above or as otherwise agreed by Landlord; (ii) prohibit further assignments
or subleases, (iii) impose the same obligations and conditions on the assignee
or sublessee as 

                                      18
<PAGE>
 
are imposed on Tenant by this Lease except as to Rent and term or a,a otherwise
agreed by Landlord; (iv) be expressly subject and subordinate to each and every
provision of this Lease, (v) have a term that expires on or before the
expiration of the term of this Lease; (vi) provide that if Landlord succeeds to
sublessor's position, Landlord shall not be liable to sublessee for advance
rental payments, deposits or other payments which have not been actually
delivered to Landlord by the sublessor, and (vii) provide that Tenant and/or the
assignee or sublessee shall pay Landlord the amount of any additional costs or
expenses incurred by Landlord for repairs, maintenance or otherwise as a result
of any change in the nature of occupancy caused by the assignment or sublease.
Any and all sublease agreements shall also provide that in the event of
termination, re-entry, or dispossession by Landlord under this Lease, Landlord
may, at its option, take over all of the right, title and interest of Tenant as
sublessor under such sublease, and such subtenant shall, at Landlord's option,
attorn to Landlord pursuant to the then executory provisions of the sublease,
except that Landlord shall not: (i) be liable for any previous act or omission
of Tenant under the sublease; (ii) be subject to any offset not expressly
provided in the sublease, that theretofore accrued to the subtenant against
Tenant; or (iii) be bound by any previous modification of such sublease or by
any previous prepayment of more than one (1) month's fixed rent or any
additional rent then due.

     28.7   PAYMENT OF ADDITIONAL RENT UPON ASSIGNMENT OR SUBLEASE. If Landlord
shall give its consent to any assignment of this Lease or to any sublease of the
Premises, Tenant shall, in consideration therefor, pay to Landlord, as
additional Rent:

            28.7.1    In the case of an assignment, an amount equal to fifty
     percent (50%) of all sums and other consideration paid to Tenant by the
     assignee for, or by reason of, such assignment (including, without limiting
     the generality of the foregoing, all sums paid for the sale of Tenant's
     leasehold improvements); and

            28.7.2    In the case of a sublease, fifty percent (50%) of any
     rents, additional charges, or other consideration payable under the
     sublease by the subtenant to Tenant (including, without limiting the
     generality of the foregoing, all sums paid for the sale or rental of
     Tenant's leasehold improvements, but excluding reasonable lease concessions
     granted by Tenant to its subtenant, the cost of tenant improvements made by
     Tenant for its subtenant, reasonable and customary lease commissions) and
     sums paid to Landlord pursuant to Section 28.9 hereof, that are in excess
     of the Rent and Tenant's Share of Expenses and all other costs to Tenant
     accruing during the term of the sublease in respect of the subleased space
     and for parking hereunder pursuant to the terms hereof.

     28.8   The sums payable under Section 28.7.1 above shall be paid to
Landlord as and when paid to Tenant. The sums payable under Section 28.7.2 above
shall be paid to Landlord as and when payable by the sublessee to Tenant, after
the permitted cost exclusions have been recouped. Within fifteen (15) days after
written request therefor by Landlord, Tenant shall at any time and from time to
time furnish evidence to Landlord of the amount of all such sums or other
consideration received or expected to be received.

     28.9   FEES FOR REVIEW. Simultaneously with the giving of the notice
described in Section 28.2 above, Tenant shall pay to Landlord or Landlord's
designee a non-refundable fee in the amount of Three Hundred Dollars ($300.00)
as reimbursement for expenses incurred by Landlord in connection with reviewing
each such transaction.

     28.10  NO RELEASE OF TENANT. No consent by Landlord to any assignment or
subletting by Tenant shall relieve Tenant of any obligation to be performed by
Tenant under this Lease, whether occurring before or after such consent,
assignment or subletting, including Tenant's obligation to obtain Landlord's
express prior written consent to any other assignment or subletting. In no event
shall any permitted subtenant assign its sublease, further sublet all or any
portion of its sublet space, or otherwise suffer or permit the sublet space, or
any part thereof, to be used or occupied by others, except upon compliance with,
and subject to the provisions of this Article 28. The acceptance by Landlord of
payment from any person other than Tenant shall not be deemed to be a waiver by
Landlord of any provision of this Lease or to be a consent to any subsequent
assignment or sublease, or to be a release of Tenant from any obligation under
this Lease.

     28.11  ASSUMPTION OF OBLIGATIONS. Each assignee of Tenant shall assume the
obligations of Tenant under this Lease and shall be and remain liable jointly
and severally with Tenant for the payment of the Rent and the performance of all
the terms, covenants, conditions and agreements herein contained on Tenant's
part to be performed for the term of this Lease. No assignment shall be binding
on Landlord unless the assignee or Tenant delivers to Landlord a counterpart of
the instrument of assignment in recordable form which contains a covenant of
assumption by the assignee satisfactory in substance and form to Landlord, and
consistent with the requirements of this Article 28. The failure or refusal of
the assignee to execute such instrument of assumption shall not release or
discharge the assignee from its liability to Landlord hereunder. Landlord shall
have no obligation whatsoever to perform any duty to or respond to any request
from any sublessee, it being the obligation of Tenant to administer the terms of
its subleases.

     28.12  CORPORATE OR PARTNERSHIP TRANSFERS. If the Tenant is a privately
held corporation, or is an unincorporated association or partnership, the
cumulative or aggregate transfer, assignment or hypothecation of fifty percent
(50%) or more of the total stock or interest in such corporation, association or
partnership shall be deemed an assignment or sublease within the meaning end
provisions of this Article. If Tenant and so long as Tenant is a publicly-traded
corporation (i.e., if shares of Tenant are held or traded pursuant to the
Securities Act of 1933, as amended, on a national stock exchange) then such
trading of shares shall not constitute an assignment, subletting or other
transfer under the provisions of this Article 28. This Article shall, however,
not apply to assignments or subleases to a corporation (i) into or with which
Tenant is merged or consolidated; (ii) to which substantially all

                                      19
<PAGE>
 
of Tenant's assets are transferred, or (iii) that controls, is controlled by, or
is under common control with Tenant, provided that, in any of such events:

          28.12.1   The successor of Tenant has a net worth, computed in
     accordance with generally accepted accounting principles, at least equal to
     the greater of (a) the net worth of Tenant immediately prior to such
     merger, consolidation or transfer, or (b) the net worth of Tenant herein
     named on the date of this Lease;

          28.12.2   Proof satisfactory to Landlord of such net worth shall have
     been delivered to Landlord at least ten (10) days prior to the effective
     date of such transaction;

          28.12.3   Any such assignment or sublease shall be subject to all of
     the terms and provisions of this Lease, and such assignee or sublessee
     shall assume, in a written document reasonably satisfactory to Landlord and
     delivered to Landlord promptly upon the assignment or sublease, all the
     obligations of Tenant under this Lease;

          28.12.4   Tenant shall remain fully liable for all obligations to be
     performed by Tenant under this Lease; and

          28.12.5   Intentionally Omitted.

     28.13  INVOLUNTARY ASSIGNMENT. No interest of Tenant in this Lease shall be
assignable by operation of law (including without limitation, the transfer of
this Lease by testacy or intestacy, or in any bankruptcy or insolvency
proceeding). Each of the following acts shall be considered an involuntary
assignment: (i) If Tenant is or becomes bankrupt or insolvent, makes an
assignment for the benefit of creditors, or institutes a proceeding under any
bankruptcy law in which Tenant is the bankrupt; or, if Tenant is a partnership
or consists of more than one (1) person or entity, if any partner of the
partnership or other such person or entity is or becomes bankrupt or insolvent,
or makes an assignment for the benefit of creditors; (ii) If a writ of
attachment or execution is levied on this Lease; (iii) If, in any proceeding or
action to which Tenant is a party, a receiver is appointed with authority to
take possession of the Premises; or (iv) there is any assumption, assignment,
sublease or other transfer under or pursuant to the Bankruptcy Code, 11 U.S.C.
101 et seq. (hereinafter referred to as the "Bankruptcy Code"). An involuntary
assignment shall constitute a default by Tenant and Landlord shall have the
right to elect to terminate this Lease, in which case this Lease shall not be
treated as an asset of Tenant. If Landlord shall elect not to exercise its right
hereunder to terminate this Lease in the event of an involuntary assignment,
then, in addition to any other rights or remedies of Landlord under this Lease
or provided by law, the provisions of Sections 28.3, 28.6, 28.7, 28.9, 28.10,
and 28.14 shall apply to any such involuntary assignment. Such sums, if any,
payable pursuant to the referenced Sections shall be and remain the exclusive
property of Landlord and shall not constitute property of Tenant or of the
estate of Tenant within the meaning of the Bankruptcy Code. Such sums which are
not paid or delivered to Landlord shall be held in trust for the benefit of
Landlord, and shall be promptly paid or turned over to Landlord upon demand. Any
person or entity to which this Lease is assigned pursuant to the provisions of
said Code shall be deemed without further act or deed to have assumed all of the
obligations of Tenant arising under this Lease on and after the date of such
assignment. Any such assignee shall upon demand execute and deliver such
instruments and documents reasonably requested by Landlord confirming such
assumption.

     28.14  Intentionally Omitted.

29.  ATTORNMENT

     29.1   If any proceeding is brought for default under any ground or
underlying lease to which this Lease is subject, or in the event of foreclosure
or the exercise of the power of sale under any mortgage or deed of trust made by
Landlord covering the Premises, Tenant shall attorn to the successor upon any
such foreclosure or sale and shall recognize that successor as Landlord under
this Lease, provided such successor expressly agrees in writing to be bound to
all future obligations by the terms of this Lease, and agrees in writing that so
long as Tenant is not in default hereunder, this Lease shall remain in full
force and effect for the full term hereof, and, if so requested, Tenant shall
enter into a new lease with that successor on the same terms and conditions as
are contained in this Lease (for the unexpired term of this Lease then
remaining).

30.  SUBORDINATION

     30.1   Without the necessity of any additional document being executed by
Tenant for the purpose of effecting a subordination, this Lease shall be subject
and subordinate at all times to: (i) all ground or underlying leases which may
now exist or hereafter be executed affecting the Premises, and (ii) the lien of
any first mortgage or first deed of trust which may now exist or hereafter be
executed in any amount for which the Premises, such ground or underlying leases,
or Landlord's interest or estate in any of them, is specified as security.
Notwithstanding the foregoing, Landlord shall have the right to subordinate or
cause to be subordinated any such ground or underlying leases or any such liens
to this Lease. If any ground or underlying lease terminates for any reason,
Tenant shall, notwithstanding any subordination, attorn to and become tenant of
the successor in interest to Landlord at the option of such successor in
interest. Tenant covenants and agrees to execute and deliver, upon demand by
Landlord and in the form requested by Landlord, any documents evidencing the
priority or subordination of this Lease with respect to any such ground or
underlying leases or the lien of any such first mortgage, or first deed of
trust, and specifically to execute, acknowledge and deliver to Landlord from
time to time within ten (10) days after written request to do so a subordination
of lease, or a subordination of deed of trust, in substantially the form set
forth in Exhibit D or Exhibit D-l, respectively, attached hereto, or such other
         ---------    -----------                                              
form as may be customarily

                                      20
<PAGE>
 
required by any Mortgagee of Landlord, and failure of Tenant to do so shall be a
material default hereunder. Notwithstanding anything to the contrary contained
herein, Tenant's obligation to subordinate its rights hereunder shall be
conditioned upon Tenant receiving from such party seeking such superior position
an agreement that so long as Tenant pays all rents due under this Lease and
otherwise complies with the terms hereof, Tenant's occupancy hereunder shall not
be disturbed.

31.  ESTOPPEL CERTIFICATE

     31.1   Tenant shall from time to time within ten (10) days after prior
written notice from Landlord execute, acknowledge and deliver to Landlord a
statement in writing in the form set forth in Exhibit E attached hereto, or such
                                              ---------                         
other form as may be customarily and reasonably required by Landlord's
Mortgagee, (i) certifying that this Lease is unmodified and in full force and
effect (or, if modified, stating the nature of such modification and certifying
that this Lease, as so modified, is in full force and effect) and the date to
which the Rent and other charges are paid in advance, if any; (ii) acknowledging
that there are not, to Tenant's knowledge, any uncured defaults on the part of
Landlord hereunder (or specifying such defaults if they are claimed); and (iii)
containing such other matters as are reasonably set forth in such form.  Any
such statement may be conclusively relied upon by any prospective purchaser or
encumbrancer of the Premises.  Tenant's failure to deliver such statement within
such time shall be conclusive upon Tenant that this Lease is in full force and
effect, without modification except as may be represented by Landlord, that
there are no uncured defaults in Landlord's performance, and that not more than
one (1) month's Rent has been paid in advance.

32.  BUILDING OCCUPANCY PLANNING

     32.1   Notwithstanding any contrary provision of this Lease, if Landlord
requires the Premises for use in conjunction with another suite or for other
reasons related to Landlord's occupancy plans for the Building, then upon at
least thirty (30) days' prior written notice to Tenant, Landlord shall have the
right to move Tenant to other space in the Project, and thereupon such other
space shall be deemed to be the Premises covered by this Lease.  The expense of
moving Tenant, its property and equipment to the substituted space and of
improving same to a condition similar to the then current condition of the
Premises shall be borne by Landlord.  If the substituted space is smaller or
larger than the Premises the Basic Rent, Security Deposit and Tenant's Share
specified in this Lease shall be adjusted proportionately, and Landlord and
Tenant shall execute an amendment to this Lease in accordance therewith.
However, if the substituted space does not meet with Tenant's approval, Tenant
may cancel this Lease upon thirty (30) days' prior written notice to Landlord,
given within ten (10) days after Tenant's receipt of Landlord's notice referred
to above.

33.  QUIET ENJOYMENT

     33.1   So long as Tenant pays all Rent and other sums due under this Lease,
performs its covenants and obligations under this Lease and recognizes any
successor to Landlord in accordance with the terms of this Lease, Tenant shall
lawfully and quietly have, hold and enjoy the Premises without hindrance or
molestation by Landlord or anyone claiming by, through or under Landlord,
subject, however, to all the provisions of this Lease.

34.  WAIVER OF REDEMPTION BY TENANT

     34.1   Tenant hereby waives for Tenant and for all those claiming under
Tenant all right now or hereafter existing to redeem by order or judgment of any
court or by any legal process or writ, Tenant's right of occupancy of the
Premises after any termination of this Lease.

35.  WAIVER OF LANDLORD, TENANT'S PROPERTY

     35.1   Landlord shall, within thirty (30) days after written request from
Tenant, execute and deliver to Tenant any statement in form reasonably
acceptable to Landlord as may be required by any supplier, lessor, installment
seller or chattel mortgagee in connection with the installation in the Premises
of any personal property or trade fixtures of Tenant, pursuant to which Landlord
shall agree to waive any rights it may have or may acquire with respect to any
such property, provided in all cases that such supplier, lessor, installment
seller or chattel mortgagee expressly agrees in writing that: (i) It will remove
at its sole cost and expense all such property from the Premises upon the
expiration or termination of the Lease and if it fails to do so within ten (10)
days after written request from Landlord it shall be deemed to have waived any
and all rights it may have had to such property; (ii) Prior to making any such
removal it will advise Landlord in writing of the date and time of such removal
and will at the time of such removal, allow a representative of Landlord to be
present; (iii) It will promptly and diligently and at its sole cost and expense
repair any and all damage to the Premises attributable to such removal and shall
restore the Premises to substantially the same condition it was in prior to such
removal; (iv) It will cause a performance and completion bond, satisfactory to
Landlord, to be furnished to Landlord with regard to the work of such removal,
repair and restoration or will use a contractor reasonably acceptable to
Landlord; (v) It will promptly pay Landlord any costs and expenses incurred by
Landlord in connection with the enforcement of Landlord's rights hereunder,
including attorneys' fees, and will indemnify and hold Landlord harmless against
any and all claims, loss, cost or expense arising out of or in connection with
such removal, repair and restoration; (vi) It will pay Landlord interest on any
outstanding amounts payable by it to Landlord at the "Agreed Rate" (as
hereinafter defined); (vii) It will not record such statement without Landlord's
prior written consent which Landlord may withhold in its sole discretion and
(viii) It will not assign its rights or delegate its duties under such statement
without Landlord's prior written consent.

                                      21
<PAGE>
 
36.  RULES AND REGULATIONS

     36.1   The Rules and Regulations attached hereto as Exhibit F are expressly
                                                         ---------              
made a part hereof. Tenant agrees to comply with such Rules and Regulations and
any reasonable and nondiscriminatory amendments, modifications or additions
thereto as may hereafter be adopted and published by notice to tenants in the
Building, and to cause its agents, contractors and employees to comply
therewith, and agrees that the violation of any of them shall constitute a
default by Tenant under this Lease. If there is a conflict between the Rules and
Regulations and any of the provisions of this Lease, the provisions of this
Lease shall prevail. Landlord shall use reasonable efforts to enforce the Rules
and Regulations against all tenants of the Project; however, Landlord shall not
be responsible to Tenant for the non-performance by any other tenant or occupant
of the Building or of the Project of any of the Rules and Regulations.

37.  NOTICES

     37.1   Any notice, demand or communication required or permitted to be
given hereunder to Landlord by Tenant shall be personally served or deposited in
the United States mails, duly registered or certified with postage fully prepaid
thereon, addressed to Landlord at Landlord's address as set forth in Section 1.9
hereof, or to such other address or such other parties as Landlord may from time
to time designate. Any notice, demand or communication required or permitted to
be given hereunder to Tenant by Landlord may be mailed as above stated to
Tenant's address as set forth in Section 1.10 hereof or delivered personally to
Tenant at the address of the Premises. Either party may by written notice
similarly given designate a different address for notice purposes, except that
Landlord may in any event use the Premises as Tenant's address for notice
purposes. Notice shall be effective when mailed or delivered as above specified.

38.  WAIVER

     38.1   No delay or omission in the exercise of any right or remedy of
Landlord or Tenant for any default by the other shall impair such right or
remedy or be construed as a waiver. The receipt and acceptance by Landlord of
delinquent payments shall not constitute a waiver of any other default, and
shall not constitute a waiver of timely payment of the particular payment
involved. No act or conduct of Landlord, including, without limitation, the
acceptance of keys to the Premises, shall constitute an acceptance of the
surrender of the Premises by Tenant before the expiration of the term. Only an
express notice to such effect from Landlord to Tenant shall constitute
acceptance of the surrender of the Premises sufficient to terminate this Lease
Landlord's consent to or approval of any act by Tenant requiring Landlord's
consent or approval shall not constitute a consent or approval of any subsequent
act by Tenant. Any waiver by Landlord or Tenant of any default must be in
writing and shall not be a waiver of any other default concerning the same or
any other provision of this Lease.

39.  MISCELLANEOUS

     39.1   EXECUTION BY LANDLORD. The submission of this document for
examination and negotiation does not constitute an offer to lease, or a
reservation of, or an option for, the Premises. This document becomes effective
and binding only upon execution by Tenant and by Landlord. No act or omission of
any employee or agent of Landlord or of Landlord's broker shall alter, change or
modify any of the provisions hereof.

     39.2   LANDLORD AND TENANT. As used in this Lease, the words "Landlord" and
"Tenant" include the plural as well as the singular. Words used in the neuter
gender include the masculine and feminine and words in the masculine or feminine
gender include the neuter. If them is more than one person or entity
constituting Landlord or Tenant, the obligations imposed hereunder upon Landlord
or Tenant are joint and several. If Tenant consists of a husband and wife, the
obligations of Tenant hereunder extend individually to the sole and separate
property of each of them as well as to their community property. The obligations
contained in this Lease to be performed by Landlord shall be binding on
Landlord's successors and assigns only during their respective periods of
ownership of the Premises.

     39.3   BROKERS. Tenant shall hold Landlord harmless from all damages
(including reasonable attorneys' fees and costs) resulting from any claims that
may be asserted against Landlord by any broker, finder, or other person with
whom Tenant has or purportedly has dealt, except as set forth at Section 1.11.

     39.4   SIGNS. Tenant shall not place or permit to be placed in or upon the
Premises, where visible from outside the Premises, or outside the Premises on
any part of the Building or Project, any signs, notices, drapes, shutters,
blinds, or displays of any type, without the prior written consent of Landlord.
Landlord reserves the right in its sole discretion to place and locate on the
roof or exterior of the Building, and in any area of the Project not leased to
Tenant, any signs, notices, displays and similar items as Landlord deems
appropriate.

     39.5   NAME OF BUILDING. Tenant shall not use the name of the Building or
the Project for any purpose other than the address of the business to be
conducted by Tenant in the Premises. Tenant shall not use any picture of the
Building or the Project in its advertising, stationery or in any manner so as to
imply that the entire Building is leased by Tenant. Landlord expressly reserves
the right at any time to change the name of the Building or Project without in
any manner being liable to Tenant therefor.

     39.6   PARKING. The provisions of this Section 39.6 are subject to the
provisions of that certain Parking License Agreement of even date herewith
("License") by and between Landlord, as "Licensor" thereunder, and Tenant, as
Licensee thereunder. During the term of this Lease, Tenant shall only be
entitled to such use of parking 

                                      22
<PAGE>
 
spaces in the parking areas located in the Project as shall be confirmed in
writing by the parties, and absent any written agreement to the contrary,
parking for Tenant and its employees, agents, customers, invitees and licensees
shall be on a first-come, first-served basis, at rates and upon other terms and
conditions as may be established from time to time by Landlord or Landlord's
operator of the parking areas. Parking rates may be hourly, weekly or monthly,
or such other rate system as Landlord deems advisable, and Tenant acknowledges
that its employees shall not be entitled to park in such parking areas located
in and about the Building which are from time to time be designated for visitors
of the Building. Landlord may also designate areas for assigned, reserved or
employee parking either within the parking areas located in and about the
Building, or in other areas reasonably close thereto. Landlord shall have the
right to change any such designated parking areas from time to time. Tenant
acknowledges that neither Landlord nor any agent of Landlord has made any
representation or warranty as to the suitability of the parking areas for the
conduct of Tenant's business.

     39.7   INTENTIONALLY OMITTED.

     39.8   APPROVAL OF LANDLORD'S MORTGAGEE. Tenant acknowledges that this
Lease is subject to the approval of Landlord's Mortgagee, and Tenant agrees to
make such reasonable modifications to this Lease as may be ordinarily and
customarily requested by Landlord's Mortgagee, so long as such modifications
shall not affect the Rent payable hereunder, increase Tenant's obligations
hereunder, or otherwise adversely affect Tenant in any material way.

     39.9   NONRECORDABILITY OF LEASE. Tenant agrees that in no event shall this
Lease or a memorandum hereof be recorded without Landlord's express prior
written consent.

     39.10  MATTERS OF RECORD. This Lease and Tenant's rights hereunder are
subject and subordinate in all respects to matters affecting Landlord's title
recorded in the official records of the county recorder's office for the county
in which the Project is located prior or subsequent to the date of execution of
this Lease, and is expressly subject and subordinate to the following:
Declaration of Restrictions dated September 15, 1978, and recorded on October 2,
1978, as Document No 78-1093326 in the Official Records of Los Angeles County,
State of California, as amended, and Reciprocal Parking Agreement dated January
3, 1979, and recorded on January 19, 1979, as Document No. 79-86214 in the
Official Records of Los Angeles County, State of California, as amended. Tenant
agrees that as to its leasehold estate it, and all persons in possession or
holding under it, will conform with and will not violate any such covenants,
conditions and restrictions, or other matters of record.

     39.11  SEVERABILITY. If any provision of this Lease shall, to any extent,
be determined by a court of competent jurisdiction to be invalid or
unenforceable, the remainder of this Lease shall not be affected thereby, and
every other term and provision of this Lease shall be valid and enforceable to
the fullest extent permitted by law.

     39.12  CONSTRUCTION. All provisions hereof, whether covenants or
conditions, shall be deemed to be both covenants and conditions. The definitions
contained in this Lease shall be used to interpret this Lease.

     39.13  INTEREST. Except as expressly provided otherwise in this Lease, any
amount due to Landlord which is not paid when due shall bear interest from the
date due at the prime commercial rate of interest charged from time to time by
Citibank N.A. plus two percent (2%) per annum, but not to exceed the maximum
rate of interest allowable under the law (the "Agreed Rate"). Payment of such
interest shall not excuse or cure any default by Tenant under this Lease.

     39.14  BINDING EFFECT; CHOICE OF LAW. Except as expressly provided
otherwise in this Lease, all of the provisions hereof shall be binding upon and
inure to the benefit of the parties hereto and their respective heirs, legal
representatives, successors and assigns. This Lease shall be governed by the
laws of the State of California.

     39.15  VENUE. Landlord and Tenant agree that the venue for any action,
proceeding or counterclaim brought by either against the other on any matter
whatsoever arising out of or in any way connected with this Lease or Tenant's
use or occupancy of the Premises, including any claim of injury or damage, and
any emergency and other statutory remedy with respect thereto shall be in the
City of Santa Monica and County of Los Angeles, in the State of California.

     39.16  TIME; RIGHTS CUMULATIVE. Time is of the essence of this Lease and
each and every provision hereof, except as may be expressly provided otherwise.
All rights and remedies of the parties shall be cumulative and non-exclusive of
any other remedy at law or in equity.

     39.17  INABILITY TO PERFORM. This Lease and the obligations of Tenant
hereunder shall not be affected or impaired because Landlord is unable to
fulfill any of its obligations hereunder or is delayed in doing so, if such
inability or delay is caused by reason of force majeure, strike, labor troubles,
acts of God, acts of government, unavailability of materials or labor, or any
other cause beyond the control of Landlord.

     39.18  CORPORATE AUTHORITY. Upon execution of this Lease, and documents
ancillary thereto, and delivery thereof to Landlord, Tenant shall provide
Landlord with either an incumbency statement or a copy of a Corporate Resolution
duly certified (in original) by the secretary of the corporation.

     39.19  PARTNERSHIP AUTHORITY. If Tenant is a partnership, joint venture, or
other unincorporated association, each individual executing this Lease on behalf
of Tenant represents that this Lease is binding on Tenant. Furthermore, Tenant
agrees that the execution of any written consent hereunder, or of any written
modification or

                                      23
<PAGE>
 
termination of this Lease, by any general partner of Tenant or any other
authorized agent of Tenant, shall be binding on Tenant.

     39.20  SUBMITTAL OF FINANCIAL STATEMENT. At any time and from time to time
during the term of this Lease (but in no event more often than once in any
calendar year), within fifteen (15) days after request therefor by Landlord,
Tenant shall supply to Landlord and/or any Mortgagee a current financial
statement or such other financial information as may be required by any such
party; however, so long as Tenant is a publicly-traded corporation, Tenant may
provide the most recent annual or quarterly report in lieu of the foregoing.

     39.21  RIDERS. Clauses, plats, addenda, and riders, if any, that are signed
by Landlord and Tenant and affixed to this Lease, are a part hereof.

40.  INTENTIONALLY OMITTED

41.  INTENTIONALLY OMITTED

42.  INCORPORATION OF PRIOR AGREEMENTS; AMENDMENTS

     42.1   This Lease contains all of the agreements of the parties hereto with
respect to any matter covered or mentioned in this Lease, and no prior
agreement, negotiations, brochures, arrangements, or understanding pertaining to
any such matter shall be effective for any purpose unless expressed herein. No
provisions of this Lease may be amended or added to except by an agreement in
writing signed by the parties hereto or their respective successors in interest.

43.  OPTION TO EXTEND TERM

     43.1   GRANT OF OPTION TO EXTEND TERM. Landlord hereby grants Tenant one
(1) option ("Option to Extend Term") to extend the initial Lease term ("Initial
Term") in accordance with the terms of this Article 43.

     43.2   OPTION TERM. The Option to Extend Term shall extend the term of the
Lease for an additional thirty-six (36) months ("Extended Term") commencing upon
the expiration of the Initial Term.

     43.3   TERM. If Tenant exercises the Option to Extend Term, then all of the
terms contained in this Lease shall continue in full force and effect during the
Extended Term, except with respect to the following:

            43.3.1  CALCULATION OF BASIC RENT. Basic Rent for the Extended Term
     shall be adjusted on the first day of the Extended Term to the then Fair
     Market Rental Value of the Premises, including escalations, but in no event
     less than the Basic Rent payable immediately preceding the Extended Term.
     The term "Fair Market Rental Value of the Premises' shall be Landlord's
     good faith calculation of the then prevailing fair market rental rate for
     the Premises as of the commencement of the Extended Term.

            43.3.2  NO FURTHER EXTENSIONS. Tenant shall have no further right to
     extend the term of this Lease whether pursuant to the provisions of this
     Article 43 or otherwise.

     43.4   NOTICE TO EXTEND TERM. The Option to Extend shall be exercised, if
at all, only by written notice ("Notice to Extend Term") delivered by Tenant to
Landlord at-least six (6) months, but not more than twelve (12) months, prior to
the expiration of the Initial Term. If Tenant does not deliver the Notice to
Extend Term within the time period set forth herein, the Option to Extend Term
shall lapse and Tenant shall have no right to extend the Lease term.

     43.5   EXTENSION RENTAL NOTICE. Within a reasonable period of time after
Landlord's receipt of the Notice to Extend Term, Landlord shall provide Tenant
written notice setting forth the Fair Market Rental Value of the Premises for
the Extended Term ("Extension Rental Notice"). Within twenty (20) days following
the date Landlord delivers the Extension Rental Notice to Tenant, Tenant shall,
by written notice delivered to Landlord either (a) accept the Fair Market Rental
Value of the Premises as stated in the Extension Rental Notice ("Notice of
Acceptance") or (b) reject the Fair Market Rental Value of the Premises as
stated in the Extension Rental Notice ("Notice of Rejection").

     43.6   EFFECT OF NOTICES. If Tenant delivers the Notice of Acceptance in
the manner and within the time frames herein provided, this Lease shall be
deemed extended at the Basic Rent and upon the terms specified in this Article
43 without the need for any further notice or documentation. If Tenant does not
deliver to Landlord either the Notice of Acceptance or the Notice of Rejection
within the said twenty (20)-day period, the same shall constitute Tenant's
Notice of Rejection. If Tenant delivers or is deemed to have delivered the
Notice of Rejection to Landlord within the said twenty (20)-day period, then
this Lease shall expire upon the expiration date of the Initial Term, unless
terminated earlier in accordance with the provisions of this Lease. The Notice
of Acceptance or Notice of Rejection, as the case may be, shall be irrevocable,
and shall be binding upon both Landlord and Tenant without the need for any
further documentation.

     43.7   DOCUMENTATION. If, within thirty (30) days following Landlord's
receipt of the Notice of Acceptance, either party shall request that both
parties enter into an amendment documenting the Extended Term and Basic Rent
during the Extended Term, then Landlord shall prepare an amendment to this Lease
setting forth the Extended Term and Basic Rent for the Extended Term pursuant to
this Article 43 ("Extended Term 

                                      24
<PAGE>
 
Amendment"). The Extended Term Amendment shall be submitted to Tenant for
execution and Tenant shall have thirty (30) days following receipt thereof from
Landlord in which to execute and deliver the Extended Term Amendment to Landlord
and Landlord shall have thirty (30) days after receipt of the same in which to
execute the Extended Term Amendment and to deliver one fully-executed copy to
Tenant. The failure of either or both Landlord or Tenant to execute the Extended
Term Amendment shall not have the effect of nullifying Tenant's Notice of
Acceptance, and the Lease shall nevertheless be extended for the Extended Term
as herein provided.

     43.8   PERSONAL OPTION. The Option to Extend Term is personal to Tenant
named at page 1 of this Lease. If Tenant assigns, mortgages, pledges,
hypothecates or encumbers this Lease or its interest in the Premises or sublets
all or any portion of the Premises ("Assigns" or "Assign" for purposes of this
Article 43 only) prior to the exercise of the Option to Extend Term, then the
Option to Extend Term shall lapse. If Tenant Assigns any interest of Tenant in
the Lease or the Premises to an entity after the exercise of the Option to
Extend Term, but prior to the commencement of the Extended Term, the Option to
Extend Term shall lapse and this Lease shall expire as if the Option to Extend
Term had not been exercised, unless such restriction is expressly waived in
writing by Landlord (which election shall be in Landlord's sole discretion).

     43.9   ADDITIONAL CONDITIONS. The Option to Extend Term shall be
exercisable by Tenant on the express conditions that at the time of the exercise
of the Option to Extend Term and upon the date of, the commencement of the
Extended Term, Tenant shall not be in default under any of the provisions of
this Lease, unless such restriction is expressly waived in writing by Landlord
(which election shall be in Landlord's sole discretion). The Option granted
herein is subject to any existing or prior rights of expansion, extension,
renewal, negotiation, offer and other rights and options which third parties may
have for the Premises.

44.  NON-DISTURBANCE AGREEMENT

     44.1   NON-DISTURBANCE AGREEMENT. Landlord shall use commercially
reasonable efforts to obtain for the benefit of Tenant a non-disturbance
agreement from Landlord's Mortgagee, within thirty (30) days after the later to
occur of (a) the date of this Lease or (b) the date Tenant submits to Landlord a
properly executed and acknowledged non-disturbance agreement. If Tenant should
not provide Landlord with a non-disturbance agreement properly executed and
acknowledged in the form submitted by Landlord to Tenant within thirty (30) days
after Tenant has received the same from Landlord, the same shall constitute
Tenant's waiver of the rights and benefits of this Article 44 and Landlord shall
have no further obligations hereunder.

45.  HAZARDOUS MATERIALS

     45.1   As used in this Lease, the term "Hazardous Material" means any
material, substance, or waste defined as or included in the definition of
"hazardous substance," "hazardous waste," "hazardous material," "hazardous
substances" or "toxic substances" under any present or future federal, state, or
local laws or regulations, or whose presence, use, storage, handling, or
disposal is the subject of regulation under any present or future federal,
state, or local laws or regulations the purpose of which is to protect human
health or the environment. The term "Hazardous Material" includes, without
limitation, crude oil and any fraction thereof, including petroleum products,
and asbestos, PCBs, and any other substances that are known or subsequently
found to have adverse affects on human health or the environment.

     45.2   Landlord represents that to its actual knowledge without
investigation, (i) no Hazardous Material is located in, on, or under the
Premises, or is in use on the Premises, other than those Hazardous Materials
commonly used in the construction, maintenance, and operation of commercial
office premises, including, but not limited to, associated parking facilities
and landscaping, in accordance with all applicable federal, state, and local
laws and regulations.

    45.3    Tenant shall not cause or permit any Hazardous Material to be
generated, produced brought upon, used, handled, stored, treated or disposed of
in, on, or under the Premises, except for normal office products used in
compliance with all applicable laws, without the prior written consent of the
Landlord, which may be withheld at Landlord's sole discretion. Tenant's
obligation to surrender the Premises pursuant to Article 25 shall expressly
include removal of all Hazardous Material present on the Premises by reason of
any act or omission of the Tenant, in accordance with all applicable federal,
state, and local laws and regulations and any valid order or requirement of any
court or administrative agency.

                                      25
<PAGE>
 
     IN WITNESS WHEREOF, Landlord and Tenant have executed this Lease as of the
day and year first above written.

LANDLORD:      BARCLAY CURCl INVESTMENT COMPANY, a California general
               partnership

               By: SC ENTERPRISES,
                 a California limited partnership, a general partner

               By: SHURL CURCl,
                 a general partner

                   By:
                      -----------------------------------------------
                         Roberta P. Irish, his attorney-in-fact



TENANT:        VETERINARY CENTERS OF AMERICA, INC. a Delaware corporation

               By:
                      -----------------------------------------------
               Name:
                      -----------------------------------------------
               Title:
                      -----------------------------------------------
                       President

               By:
                      -----------------------------------------------
               Name:
                      -----------------------------------------------
               Title:
                      -----------------------------------------------
                       Secretary

                                      26
<PAGE>
 
                                   EXHIBIT A

                            DESCRIPTION OF PREMISES

                              [MAP APPEARS HERE]




                                   EXHIBIT A
<PAGE>
 
                                  EXHIBIT A-1

                            DESCRIPTION OF PROJECT

                              [MAP APPEARS HERE]




                                  EXHIBIT A-1
<PAGE>
 
                                   EXHIBIT B

                     VERIFICATION OF TERM AND INITIAL RENT

Re:  Lease dated _________________________  between ___________________________
___________________________________________________________________ ("Landlord")
and _______________________________________________________________   ("Tenant")
for premises in ________________________________________________________________
Tenant hereby verifies that the information stated below is correct and further
acknowledges and accepts possession of the Premises.

               Area: ____________________(rentable/usable/gross) sq. ft.
  Commencement Date: ________________________________________________
   Termination Date: ________________________________________________
       Initial Rent: ________________________________________________
Address for Notices: ________________________________________________
                     ________________________________________________
                     ________________________________________________
                     ________________________________________________
   Billing Address:  ________________________________________________
                     ________________________________________________
                     ________________________________________________
                     ________________________________________________
              ATTN:  ________________________________________________
         Telephone:  (___) __________________________________________
Federal Tax ID No.:  ________________________________________________

                                  By: __________________________________________
                                 Title: ________________________________________
                                       Date: ____________________________, 19___


                                   EXHIBIT B
<PAGE>
 
                                   EXHIBIT C

                   Exhibit C has been intentionally omitted.



                              EXHIBIT C - PAGE 1
<PAGE>
 
                                   EXHIBIT D

                            SUBORDINATION OF LEASE

Recording Requested by
and When Recorded Mail to:

AUSA Life Insurance Company of America
c/o 1740 Advisers, Inc. 19712 MacArthur Boulevard, Suite 200
Irvine, California 92715
Attn: William K. Carnahan

- --------------------------------------------------------------------------------
                   (Space above this line for Recorder's use)

            SUBORDINATION, NONDISTURBANCE AND ATTORNMENT AGREEMENT
               (Santa Monica Business Park/AUSA Loan No._____)

NOTICE: THE SUBORDINATION PROVIDED FOR IN THIS AGREEMENT RESULTS IN YOUR
LEASEHOLD ESTATE IN THE PROPERTY BECOMING SUBJECT TO AND OF LOWER PRIORITY THAN
THE SECURITY INTEREST IN THE PROPERTY CREATED BY SOME OTHER OR LATER INSTRUMENT.

THIS AGREEMENT, made effective as of the ______ day of ______ , 1995, by and
between BARCLAY CURCI INVESTMENT COMPANY, a California general partnership
("Lessor"), Lessor under the Lease hereinafter described, and
______________________________ ("Lessee"), the lessee under the Lease
hereinafter described, in favor of AUSA LIFE INSURANCE COMPANY, INC., a New York
life insurance company ("Beneficiary"), successor-in-interest to THE MUTUAL LIFE
INSURANCE COMPANY OF NEW YORK, a New York corporation, the owner and holder of
the Deed of Trust and Note hereinafter described.

                             W I T N E S S E T H:
                             --------------------

WHEREAS, Lessor has executed a Deed of Trust in favor of Beneficiary (the "Deed
of Trust"), covering certain real property (the "Property") located in Los
Angeles County, State of California, more particularly described in Exhibit A
                                                                    ---------
attached hereto and incorporated herein by this reference, to secure a loan
evidenced by a promissory note (the "Note") dated of even date therewith,
payable to Beneficiary or order, which Deed of Trust has been recorded in the
Official Records of said County; and

WHEREAS, Lessor and Lessee have entered into a lease dated ___________________,
covering a portion of the building(s) located on the Property, for the term and
upon the terms and conditions therein set forth (the "Lease"); and,

WHEREAS, Lessee has requested Beneficiary to accept Lessee as a tenant and
Beneficiary has requested that Lessee and Lessor expressly subordinate the Lease
and all rights and interests of the Lessor and Lessee thereunder to the lien of
the Deed of Trust, and that the lien of the Deed of Trust be unconditionally and
at all times prior and superior to the leasehold interests and estates created
by the Lease.

NOW THEREFORE, in consideration of the foregoing and other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, and
of the mutual benefits to accrue to the parties hereto, it is hereby declared,
understood and agreed as follows:

     1.   Lessor and Lessee declare and acknowledge that each hereby
          intentionally waives, relinquishes and subordinates the priority and
          superiority of the Lease, the leasehold interests and estates created
          thereby, and the rights, privileges and powers of the Lessee and
          Lessor thereunder, including without limitation any purchase options,
          rights of first refusal, rights to any condemnation award and similar
          rights or interests of the Lessee in the Property (whether or not the
          Lease or other documents or instruments creating or evidencing such
          rights or interests shall have been filed of record in the Official
          Records of Los Angeles County, California, or otherwise), in favor of
          the Deed of Trust and any instrument modifying or amending the same,
          or entered into in substitution or replacement thereof.

     2.   It is expressly understood and agreed that this Agreement shall
          supersede, to the extent inconsistent herewith, the provisions of the
          Lease.

     3.   In the event Beneficiary or any other purchaser at a foreclosure sale,
          or sale under private power contained in the Deed of Trust, or sale
          held by the trustee thereunder, succeeds to the interest of Lessor in
          the Property by reason of any foreclosure of the Deed of Trust or the
          acceptance of a deed in lieu of foreclosure, or by any other manner,
          it is agreed that, notwithstanding the subordination of the Lease
          provided for hereinabove:


          a.   Lessee shall be bound to Beneficiary or such other purchaser
               under all of the terms, covenants and conditions of the Lease for
               the remaining balance of the term thereof and

                              EXHIBIT D - PAGE 1
<PAGE>
 
               any extensions thereof, with the same force and effect as if
               Beneficiary or such other purchaser were the original lessor
               under such Lease, and Lessee does hereby agree to attorn to
               Beneficiary or such other purchaser as its lessor, such

               attornment to be effective and self-operative without the
               execution of any further instruments on the part of any of the
               parties to this Agreement, immediately upon Beneficiary or such
               other purchaser succeeding to the interest of Lessor in the
               Property.

          b.   Subject to the observance and performance by Lessee of all of the
               terms, covenants and conditions of the Lease on the part of the
               Lessee to be observed and performed, and provided that Lessee is
               then in possession of the leased premises, Beneficiary or such
               other purchaser shall recognize the leasehold estate of Lessee
               under all of the terms, covenants and conditions of the Lease for
               the remaining balance of the term or extension thereof with the
               same force and effect as if Beneficiary or such other purchaser
               were the original lessor under the Lease; provided, however, that
               Beneficiary or such other purchaser shall not be (i) liable for
               any act or omission of any prior lessor (including Lessor), 
               (ii) obligated to cure any defaults of any prior lessor
               (including Lessor) under the Lease which occurred prior to the
               time that Beneficiary or such other purchaser succeeded to the
               interest of Lessor in the Property, (iii) subject to any offsets
               or defenses which Lessee may be entitled to assert against any
               prior lessor (including Lessor), (iv) bound by any payment of
               rent or additional rent by Lessee to any prior lessor (including
               Lessor) for more than the current month, (v) bound by any
               amendment or modification of the Lease made without the prior
               written consent of Beneficiary or such other purchaser, or (vi)
               liable or responsible for or with respect to the retention,
               application and/or return to Lessee of any security deposit paid
               to any prior lessor (including Lessor), unless and until
               Beneficiary or such other purchaser has actually received for its
               own account as lessor the full amount of such security deposit;
               and further provided that the Lease shall be subject to the
               rights of Beneficiary under the Deed of Trust with respect to
               insurance and condemnation proceeds relating to the Property.

     4.   Lessee hereby agrees that it will not exercise any right granted it
          under the Lease, or which it might otherwise have under applicable
          law, to terminate the Lease or perform any obligations of Lessor under
          the Lease for Lessor's account, because of a default of Lessor
          thereunder or the occurrence of any other event, without first giving
          to Beneficiary prior written notice of its intent to terminate or so
          perform, which notice shall include a statement of the default or
          event on which such intent to terminate or perform is based.
          Thereafter, Lessee shall not take any action to terminate the Lease or
          so perform if Beneficiary: (i) within sixty (60) days after service of
          such written notice on Beneficiary by Lessee of its intention to
          terminate the Lease or so perform, shall cure such default or event if
          the same can be cured by the payment or expenditure of money; or, 
          (ii) shall diligently take action to obtain possession of the leased
          premises (including possession by receiver) and to cure such default
          or event in the case of a default or event which cannot be cured
          unless and until the Beneficiary has obtained possession.


     5.   Subject to paragraph 4 above, Lessor and Lessee hereby agree not to
          terminate, modify or amend the Lease, or any of the terms thereof,
          without the prior written consent of Beneficiary, and further agree
          that any attempted termination, modification, or amendment of the
          Lease without prior written consent of Beneficiary shall be null and
          void.


     6.   For the purposes of facilitating Beneficiary's rights hereunder,
          Beneficiary shall have, and for such purposes is hereby granted by
          Lessee and Lessor, the right to enter upon the Property and any
          improvements thereon for the purpose of effecting any cure provided
          for herein.


     7.   Lessee hereby agrees to give to Beneficiary, concurrently with the
          giving of any notice of any nature given by Lessee to the Lessor under
          the Lease, a copy of such notice by mailing the same to Beneficiary in
          the manner set forth hereinbelow, and no such notice given to the
          Lessor which is not at or about the same time also given to
          Beneficiary shall be valid or effective against Beneficiary for any
          purpose.

          For purposes of any notices to be given to Beneficiary hereunder, the
          same shall be sent by U.S. certified mail, return receipt requested,
          postage prepaid, to Beneficiary at the following address:

          AUSA LIFE INSURANCE COMPANY INC., a New York life insurance company
          19712 MacArthur Boulevard, Suite 200 
          Irvine, California 92715 
          Attn: William K. Carnahan

          or to such other address as Beneficiary may hereafter notify Lessee in
          writing by notice sent to Lessee as aforesaid at Lessee's address at
          the Property, or such other address as Beneficiary may hereafter be
          advised of in writing by notice sent to Beneficiary as aforesaid.

                              EXHIBIT D - PAGE 2
<PAGE>
 
     8.   The agreements contained herein shall run with the land and shall be
          binding upon and inure to the benefit of the respective heirs,
          administrators, executors, legal representatives, successors and
          assigns of the parties hereto.

     9.   Lessee, by the execution of this Agreement, acknowledges: (i) that
          Lessor has collaterally assigned to Beneficiary all of Lessor's right,
          title and interest in and to the Lease pursuant to an Assignment of
          Lessor's Interest (the "Assignment"); (ii) that under the terms of the
          Assignment, until the Note is paid in full, Lessor may not without the
          prior written consent of Beneficiary, agree to any modification or
          termination of the Lease, accept the surrender of the Lease, collect
          any rent in advance of the due date specified in the Lease, exercise
          any right of election which would have an adverse effect upon the
          Lease, or consent to any assignment or further subordination of
          Lessee's interest in the Lease; and, (iii) that in the event of a
          default of any of the terms and conditions of the Note or any
          documents executed in connection therewith, Beneficiary has the right
          to collect the rental and other payments due under the Lease in
          partial satisfaction of the Note. Unless and until Beneficiary
          notifies Lessee in writing of such a default (at which time all
          payments are to ba made as the notice directs), all payments called
          for by the Lease are to be made as required by the Lease. Lessee
          acknowledges that the Lease has been assigned as security for the
          repayment of the Note only and no duty, liability, or obligation
          whatsoever under said Lease, solely by virtue of the Assignment, is
          assumed by Lender.

IN WITNESS WHEREOF, the undersigned have executed this instrument as of the day
and year first above written.

LESSOR:                       BARCLAY CURCI INVESTMENT COMPANY,
                              a California general partnership

                              By: SC ENTERPRISES,
                                  a California limited a general partnership,
                                  a general partner

                              By: ____________________________________________
                                  SHURL CURCI, a general partner



LESSEE:
                                  ____________________________________________
                                  By:_________________________________________
                                  Its:________________________________________



BENEFICIARY:                      AUSA LIFE INSURANCE COMPANY, INC.
                                  a New York life insurance company

                                  By:_________________________________________
                                  Its:________________________________________


                              EXHIBIT D - PAGE 3
<PAGE>
 
                                ACKNOWLEDGMENTS
                                ---------------

STATE OF CALIFORNIA )
                    ) ss.
COUNTY OF _________ )

On _____________, 1995, before me,  _________________________________,
personally appeared ________________________________________________ personally
known to me (or proved to me on the basis of satisfactory evidence) to be the
person(s) whose name(s) is/are subscribed to the within instrument and
acknowledged to me that he/she/they executed the same in his/her/their
authorized capacity(ies), and that by his/her/their signature(s) on the
instrument the person(s) or the entity upon behalf of which the person(s) acted,
executed the instrument.

WITNESS my hand and official seal.

                             ---------------------------
                                    Notary Public

(Notary Seal)



STATE OF CALIFORNIA )
                    ) ss.
COUNTY OF __________)

On ________, 1995, before me, ___________________________________________,
personally appeared _______________________________________ personally known to
me (or __________________________________ proved to me on the basis of
satisfactory evidence) to be the person(s) whose name(s) is/are subscribed to
the within instrument and acknowledged to me that he/she/they executed the same
in his/her/their authorized capacity(ies), and that by his/her/their
signature(s) on the instrument the person(s) or the entity upon behalf of which
the person(s) acted, executed the instrument.

WITNESS my hand and official seal.

                               -----------------------
                                    Notary Public
(Notary Seal)

                              EXHIBIT D - PAGE 4
<PAGE>
 
                                ACKNOWLEDGMENTS
                                ---------------

STATE OF CALIFORNIA )
                    ) ss.
COUNTY OF __________)

On ____________, 1995, before me, _____________________________, personally
appeared _________________________________________________ personally known to
me (or proved to me on the basis of satisfactory evidence) to be the person(s)
whose name(s) is/are subscribed to the within instrument and acknowledged to me
that he/she/they executed the same in his/her/their authorized capacity(ies),
and that by his/her/their signature(s) on the instrument the person(s) or the
entity upon behalf of which the person(s) acted, executed the instrument.

WITNESS my hand and official seal.

Notary Public

                             ---------------------------
                                    Notary Public

(Notary Seal)


                              EXHIBIT D - PAGE 5
<PAGE>
 
                                   EXHIBIT A
                                   ---------

                         Legal Description of Property
                         -----------------------------

             (Santa Monica Business Park/AUSA Loan No. __________)

THE LAND REFERRED TO HEREIN IS SITUATED IN THE COUNTY OF LOS ANGELES, STATE OF
CALIFORNIA, AND IS DESCRIBED AS FOLLOWS:


                              EXHIBIT D - PAGE 6
<PAGE>
 
                                  EXHIBIT D-1

                        SUBORDINATION OF DEED OF TRUST

________________________________________________(hereinafter called "Lender") as
owner and holder of a certain promissory note dated __________________ in the
principal sum of _______________Dollars ($_______) and a Deed of Trust dated of
even date therewith securing said Note, now a first lien upon the premises more
particularly demised and described in those certain leases by and between
_______________________________________, as Landlord, and the persons named
(whose agreement hereto is evidenced by unrecorded agreements in the possession
of Landlord and Lender) in Exhibit A attached hereto and made a part hereof, as
Tenant, and upon other property, in consideration of such leasing and of the sum
of One Dollar ($1.00) and other good and valuable consideration, receipt of
which is hereby acknowledged,

     DOES hereby covenant and agree that the said Deed of Trust shall be, and
the same is hereby made, SUBJECT AND SUBORDINATE to said leases with the same
force and effect as if the said leases had been executed, delivered and recorded
prior to the execution, delivery and recording of said Deed of Trust, without
regard to the date on which said leases had been executed, delivered and
recorded in relation to the date on which said Deed of Trust has become an
effective lien by the terms therein demised;

     EXCEPT, HOWEVER, that this Subordination shall not affect or be applicable
to and does hereby expressly exclude:

     (a)  The prior right, claim and lien of the said Deed of Trust in, to and
          upon any award or other compensation heretofore or hereafter to be
          made for any taking by eminent domain of any part of said premises,
          and to the right of disposition thereof in accordance with the
          provisions of said Deed of Trust,

     (b)  The prior right, claim and lien of the said Deed of Trust in, to and
          upon any proceeds payable under all policies of fire and rent
          insurance upon the said premises and as to the right of disposition
          thereof in accordance with the terms of said Deed of Trust, and

     (c)  Any lien, right, power or interest, if any which may have arisen or
          intervened in the period between the recording of the said Deed of
          Trust and the execution of the said leases, or any lien or judgment
          which may arise at any time under the terms of such leases.

     The subordination shall inure to the benefit of and shall be binding upon
the undersigned, its successors and assigns.

     IN WITNESS WHEREOF, this Subordination has been duly signed and delivered
by the undersigned this ________ day of ______________________, 19_____.

"LENDER":


                             EXHIBIT D-1 - PAGE 1
<PAGE>
 
                                   EXHIBIT E

                              ESTOPPEL STATEMENT

          Re: Lease dated as of ____________ (hereinafter the "Lease"), between
          _____________(hereinafter the "Lessor") and _________________________
          (hereinafter the "Lessee"), (and amended on ________________________),
          concerning the premises described in Exhibit A attached hereto (the
          "Premises").

     As Lessee under the above referenced Lease, the undersigned hereby
acknowledges for the benefit of _____________________________________________
("Lender"), which has or is about to make a loan to said Lessor, part of the
security for which will be a mortgage or deed of trust covering the Premises
leased to the undersigned and an assignment of Lessor's interest in the Lease,
the truth and accuracy of the following statements pertaining to said Lease.

     1.   Lessee has accepted, is satisfied with (except for only nonsubstantial
defects, notice of which has previously been given to Lessor), and is in full
possession of said Premises, including all improvements. additions and
alterations thereto required to be made by Lessor under the said Lease, and that
to the best of Lessee's actual knowledge Lessee is not aware of any patent or
latent defects in construction of said improvements (except for only
nonsubstantial defects, notice of which has previously been given to Lessor)
which would constitute a default by Lessor pursuant to the Lease.

     2.   Lessee is paying the full rent stipulated in said Lease to be paid by
Lessee as of the date hereof with no offsets, defenses or claims.

     3.   Lessor, to the best of Lessee's actual knowledge, is not presently in
default under any of the terms, covenants or provisions of said Lease.

     4.   Lessor has satisfactorily complied with all of the requirements and
conditions precedent to the commencement of the term of said Lease as specified
in said Lease.

     5.   The current fixed base monthly rent under said Lease is $ ________ and
no moneys have been paid to Lessor in advance of the due date set forth in the
Lease described above, except as follows: ______________________________________
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
_____________________.

     6.   The Lease is for a term of _________________ years and Lessee has been
in occupancy since _____ and paying rent since ______________________________.

     7.   The Lease commenced on _____________________________________________.

     8.   Lessee acknowledges that Lender assumes no liability for its security
deposits, if any, or for sums escrowed with the Lessor for taxes or insurance or
other expenses in the event that Lender acquires the Premises through
foreclosure or through a transfer of title in lieu of foreclosure.

     9.   Lessee hereby acknowledges (a) that there have been no modifications
or amendments to said Lease other than herein specifically stated, (b) that to
the best of its actual knowledge it has no notice of a prior assignment,
hypothecation or pledge of rents or of the Lease, (c) that the Lease is in full
force and effect and Lessee has no defenses, setoffs or counterclaims against
Lessor arising out of the Lease or in any way relating thereto, or arising out
of any other transaction between Lessee and Lessor, (d) that the Lease
represents the entire agreement between the parties thereto as to the leased
premises, and Lessee neither has nor claims any right or interest in or under
any contract, option or agreement involving the sale or transfer of the leased
premises except as specifically provided in the Lease, (e) that no prepayment or
reduction of rent, and no modification, termination or acceptance of surrender
of the Lease will be valid as to Lender without the consent of Lender, and 
(f) that notice of the proposed assignment of Lessor's interest in said Lease
may be given Lessee by Certified or Registered Mail, Return Receipt Requested,
at the Premises, or as otherwise directed herein.

Dated: _______________,  19_________

LESSEE: ______________________________________________________________________
        ______________________________________________________________________
 
                   By: _______________________________________________________
                   Its:_______________________________________________________


                              EXHIBIT E - PAGE 1
<PAGE>
 
     (Address to which notices are to be sent if other than Premises)

     ------------------------------
     ------------------------------
     ------------------------------


                              EXHIBIT E - PAGE 2
<PAGE>
 
                                   EXHIBIT F
                                   ---------

                        BUILDING RULES AND REGULATIONS
                        ------------------------------

     The following rules and regulations shall be applicable to the Building:

     1.   No sign, placard, picture, advertisement, name or notice shall be
inscribed, displayed, or printed or affixed on or to any part of the Building or
Premises if visible from outside the Premises, without the prior written consent
of Landlord. Tenant's identification signs and lettering shall be in accordance
with Landlord's standard requirements for the Building unless otherwise approved
in writing by Landlord, and shall be printed, painted, affixed, or inscribed at
the expense of Tenant by a person approved by Landlord.

     2.   Tenant shall not place or maintain any window covering, blinds or
drapes on any window without Landlord's prior written approval. A breach of this
rule will directly and adversely affect the exterior appearance of the Building.
Upon request by Landlord, Tenant shall remove any window covering, or any other
item visible from outside the Premises, if installed or placed without
Landlord's written approval.

     3.   A directory of the Building will be provided for the display of the
name and location of tenants. Landlord will install at Tenant's expense
directory strips for Tenant's name and a reasonable number of the principal
employees thereof, and Landlord reserves the right to exclude any other names
therefrom.

     4.   The sidewalks, halls, passages, exits, entrances, elevators,
escalators, and stairways shall not be obstructed by Tenant or used by it for
any purpose other than for ingress to and egress from the Premises. The halls,
passages, exits, entrances, elevators, escalators, stairways, balconies and roof
are not for the use of the general public and Landlord shall in all cases retain
the right to control and prevent access thereto by all persons whose presence in
the judgment of the Landlord might be prejudicial to the safety, character,
reputation and interests of the Building and its tenants, provided that nothing
herein contained shall be construed so as to prevent such access to persons with
whom Tenant normally deals in the ordinary course of Tenant's business unless
such persons are engaged in illegal activities or are creating a nuisance. No
employee, invitee, contractor or agent of Tenant shall go upon the roof of the
Building.

     5.   Tenant shall be responsible for assuring that doors to the Premises
are locked during non-business hours. Such doors shall not be left open during
business hours, except while moving furniture or other items in or out of the
Premises, unless Landlord consents otherwise.

     6.   The toilet rooms and urinals, wash bowls and other apparatus therein
shall not be used for any purpose other than that for which they were
constructed and no foreign substance of any kind whatsoever shall be placed
therein; the expense of breakage, stoppage or damage resulting from the
violation of this rule shall be borne by the tenant who, or whose employees,
invitees, contractors or agents, shall have caused it.

     7.   Except as to normal pictures and furnishings, Tenant shall not mark,
drive nails, screw or drill into partitions, woodwork or piaster or in any way
deface the Premises or any part thereof. No boring, cutting or stringing of
wires shall be permitted except with the prior written consent of Landlord and
as Landlord may direct. Tenant shall not lay linoleum, tile, carpet or other
similar floor covering so that the same shall be affixed to the floor of the
Premises in any manner except as approved by Landlord. The expense of repairing
any damage resulting from a violation of this rule or removal of any floor
covering shall be borne by Tenant.

     8.   Tenant shall not overload any floor of the Premises or the Building.
No furniture, freight or equipment of any kind shall be brought into the
Building by Tenant or its contractors or agents without prior consent of
Landlord and all moving of the same into or out of the Building shall be done at
such time and in such manner as Landlord shall designate. Landlord shall have
the right to prescribe the weight, size and position of all safes and other
heavy objects brought into the Building and also the time and manner of moving
the same in and out of the Building. Safes and other heavy objects shall, if
considered necessary by Landlord, stand on wood strips of such thickness as is
necessary to properly distribute weight. Landlord will not be responsible for
loss or damage to any property from any such cause, and all damage done to the
Building by moving or maintaining any such safe or other property shall be
repaired at the expense of Tenant. There shall not be used in any part of the
Building any hand truck unless it is equipped with rubber tires and side guards.

     9.   Tenant shall not employ any person or persons other than the janitor
of Landlord for the purpose of cleaning the Premises unless otherwise agreed to
in writing by Landlord. Except with the prior written consent of Landlord, no
person or persons other than those approved by Landlord shall be permitted to
enter the Building for the purpose of cleaning same. Tenant shall not cause any
unnecessary labor by reason of Tenant's carelessness or indifference in the
preservation of good order and cleanliness. Landlord shall in no way be
responsible to Tenant for any loss of property on the Premises, however
occurring, or for any damage done to the effects of Tenant or any of its
employees or other persons by the janitor of Landlord. Janitor service shall be
customary in quality and frequency with similar class buildings in the Santa
Monica-West Side market and shall include ordinary dusting and cleaning by the
janitor assigned to such work and shall not include clearing of carpets or rugs,
except normal vacuuming, or moving of furniture and other special services.
Janitor service will not be furnished to rooms which are occupied after 9:30
p.m. unless such occupants immediately vacate such rooms and inform the
janitorial service that they may clean the same, when such janitorial service
arrives. Window cleaning shall be done only by Landlord at reasonable intervals
and as Landlord reasonably deems necessary.

                              EXHIBIT F - PAGE 1
<PAGE>
 
     10.  Tenant shall not use, keep or permit to be used or kept any noxious
gas or substance in the Premises, or permit or suffer the Premises to be
occupied or used in a manner offensive or objectionable to Landlord or other
occupants of the Building by reason of noise, odors and/or vibrations, or
interfere in any way with other tenants or those having business therein. No
tenant shall make or permit to be made any loud or disturbing noises or disturb
or interfere with occupants of the Building or those having business with them
whether by the use of any musical instrument, radio, phonograph, shouting or in
any other manner. Tenant shall not throw anything out of doors or down the
passageways.

     11.  The Premises shall not be used for the storage of merchandise except
as such storage may be incidental to the use of the Premises authorized by the
Lease. No cooking shall be done or permitted in the Premises without Landlord's
consent, except that use by Tenant of Underwriter's Laboratory approved
microwave ovens or equipment for brewing coffee or similar beverages shall be
permitted. Tenant shall not advertise for day laborers giving an address at the
Premises. The Premises shall not be used for lodging or for any illegal
purposes. Tenant shall not keep or maintain pets or animals of any type except
animals assisting the disabled in accordance with applicable law and shall not
store or keep bicycles, mopeds or motorcycles in the Premises or the Building.

     12.  Tenant shall not use or keep in the Premises or the Building any
kerosene, gasoline or flammable or combustible fluid or material, or use any
method of heating or air conditioning other than that supplied or permitted by
Landlord.

     13.  Landlord will direct electricians as to where and how electrical,
telephone and telegraph wires are to be introduced to the Premises. No boring or
cutting for wires will be allowed without the prior consent of Landlord. The
location of telephone switching equipment, call boxes and other similar
equipment in the Premises shall be subject to the approval of Landlord.

     14.  Landlord will furnish Tenant free of charge two (2) keys for each
locking door in the Premises. Any additional or replacement keys will be
furnished at a reasonable charge. All keys to offices, rooms and toilet rooms
shall be obtained from Landlord and Tenant shall not duplicate or obtain such
keys from any other source. Upon termination of the Lease, Tenant shall deliver
to Landlord the keys to the offices, rooms and toilet rooms which were
previously furnished to Tenant, failing which Tenant shall pay Landlord the cost
of replacing same or of changing the lock or locks opened by any unreturned key
if Landlord deems it necessary to make such changes. Landlord shall have the
right periodically to change all locks and furnish Tenant with new keys
therefor. Tenant shall not alter any lock or install any new or additional locks
or any bolts on any door of the Premises without the prior written consent of
Landlord (except as to safes, vaults and other secured areas of Tenant approved
by Landlord).

     15.  No furniture, packages, supplies, equipment or merchandise will be
received in the Building or carried up or down in the elevators, except between
such hours and in such elevators as shall be designated by Landlord.

     16.  Landlord reserves the right to close and keep locked all entrances and
exit doors of the Building on Saturdays, Sundays, legal holidays and on other
days between non-business hours, and during such further hours as Landlord may
deem advisable for the adequate protection of the Building and the property of
its tenants (such hours are referred to as "After-Hours"). However, during such
After-Hours Tenant and/or authorized employees as well as guests, licensees or
invitees of Tenant who are accompanied by Tenant or an authorized employee of
Tenant, shall be allowed access to the Building upon proper identification.
Landlord shall in no case be liable for damages for any error with regard to the
admission to or exclusion from the Building of any person. In case of invasion,
mob, riot, public excitement, or other commotion, Landlord reserves the right to
prevent access to the Building during the continuance of same.

     17.  The "normal business hours" for the Building are from 7:00 a.m. to
6:00 p.m. Monday through Friday, excluding nationally recognized standard
holidays. All other hours are deemed "After-Hours".

     18.  Tenant shall not canvass or solicit other tenants in the Building and
Tenant shall cooperate to prevent any such canvassing and/or solicitation.
Canvassing and peddling in the Building is prohibited. Tenant shall not obtain
for use in the Premises food, beverage, shoe-shine or other services except as
expressly permitted by Landlord.

     19.  Landlord reserves the right to exclude or expel from the Building any
person who, in the judgment of Landlord, is intoxicated or under the influence
of liquor or drugs, has no legitimate purpose to be in the Building, or is
violating the rules and regulations of the Building.

     20.  The requirements of Tenant will be attended to only upon application
to Landlord's designated property manager. Tenant acknowledges that employees of
Landlord shall have no obligation to perform work for Tenant or do anything
outside their regular duties for Tenant unless under special instructions from
Landlord, and that no employee will have any obligation to admit any person
(Tenant or otherwise) to any office of Landlord without specific instructions
from Landlord.

     21.  No vending machines of any description shall be installed, maintained,
or operated by Tenant upon the Premises or in the Building, without the prior
written consent of Landlord.

                              EXHIBIT F - PAGE 2
<PAGE>
 
     22.  Tenant agrees that it shall comply with all fire and security
regulations that may be issued from time to time by Landlord, and Tenant shall
also provide Landlord with the name of a designated responsible employee to
represent Tenant in all matters pertaining to such fire or security regulations.

     23.  Tenant shall not install any radio or television antenna, loudspeaker
or other device on the roof or exterior walls of the Building. Tenant shall not
interfere with broadcasting or reception from or in the Building or elsewhere.

     24.  Tenant shall store its trash and garbage within the Premises or in
other facilities designated by Landlord. Tenant shall not place in any trash
receptacle any material which cannot be disposed of in the ordinary practice of
trash disposal. All trash and garbage disposal shall be made pursuant to
directions issued from time to time by Landlord.

     25.  Landlord may waive any one or more of the rules and regulations as to
any tenant without being construed as having waived same as to any other tenant.

     26.  Tenant shall be responsible for the observance of the rules and
regulations by Tenant's employees, agents, customers, invitees and guests.

     27.  Landlord reserves the right upon written notice to Tenant, to rescind,
alter or waive any rule or regulation at any time prescribed for the Building,
or to establish additional reasonable, nondiscriminatory rules and regulations
when, in Landlord's sole, reasonable judgment, it is necessary, desirable or
proper for the best interest of the Building and its tenants.

     28.  The rules and regulations shall be administered fairly by Landlord and
Landlord shall not enforce them in a discriminatory manner as between the
tenants of the Building.


                              EXHIBIT F - PAGE 3
<PAGE>
 
                                   EXHIBIT G

                   Exhibit G has been intentionally omitted.




                              EXHIBIT G - PAGE 1
<PAGE>
 
                                   EXHIBIT H

                   Exhibit H has been intentionally omitted.




                              EXHIBIT H - PAGE 1
<PAGE>
 
                           PARKING LICENSE AGREEMENT

     BARCLAY CURCI INVESTMENT COMPANY, a California general partnership
("Licensor"), hereby grants to VETERINARY CENTERS OF AMERICA, INC., a Delaware
corporation ("Licensee"), the right and license to use parking spaces in Santa
Monica Business Park (the "Project"), as described below and subject to the
following conditions:

     1.   TYPE AND NUMBER OF PARKING SPACES. Licensee shall have the right to
use up to 27 unassigned automobile parking spaces. If the area of Licensee's
Premises in the Project is reduced, Licensee's allotment of parking spaces will
be adjusted proportionately. If the area of Licensee's Premises is increased,
Licensee may, at its option, increase the number of its allotted parking spaces
proportionately. Notwithstanding the preceding, Licensee shall have no right to
use any number of parking spaces in excess of the number of employees of
Licensee actually employed at the Premises.

     2.   MONTHLY FEE. Licensee shall pay for the right and license granted
hereby the prevailing rates charged for such spaces by Licensor from time to
time ("market rate"). Such sums shall be payable in advance on the first day of
each calendar month. Licensor shall have no obligation to accept any such
payment from anyone other than Licensee (e.g. Licensee's employees, subtenants,
etc.). If Licensee fails to make any such payment when due, the same shall
constitute a monetary default under the Lease and Tenant shall be entitled to
the same notice and cure period specified at Section 22.1.2 of the Lease. Any
late payment of the monthly fee will result in additional administrative and
processing costs being incurred by Licensor, the exact amount of which would be
extremely difficult to determine, and it is agreed that with respect thereto a
late fee of Ten Dollars ($10.00) per space is a reasonable estimate thereof and
will be payable by Licensee with regard to any monthly fee not paid when due.

     3.   TERM. Licensee shall be entitled to the foregoing parking rights for a
period equivalent to the term of that certain "Lease" of Premises in the Project
entered into by Licensor and Licensee. Licensee's rights to any and all parking
spaces shall be revoked and shall terminate upon any expiration or termination
of said Lease, as well as upon any assignment of such Lease or sublease of such
Premises in violation of the terms of such Lease, Licensee must exercise its
rights under this Agreement by delivering all required security deposits and the
initial monthly fee for the parking spaces described above within thirty (30)
days after the "Commencement Date" of the aforementioned Lease (as defined
herein) unless otherwise agreed by Licensor. Failure of Licensee to so exercise
its rights will entitle Licensor without notice to transfer to others Licensee's
rights to park in any and all parking spaces as to which Licensee has not so
exercised its rights hereunder, and Licensee will be deemed to have waived its
rights hereunder with regard thereto.

     4.   LOCATION OF PARKING SPACES. Licensor shall have the right in its sole
discretion to designate the particular location of said parking space(s), which
designation is subject to change from time to time provided that such designated
spaces are in reasonable proximity to the Building in which the Premises are
located.

     5.   RIGHTS NON-TRANSFERRABLE. The foregoing parking rights are personal to
Licensee and Licensee shall not assign, convey, or otherwise transfer said
rights separate from the said Lease without Licensor's prior written consent.
Any attempt by Licensee to do so shall be null and void and, at Licensor's
election, shall constitute a material default hereunder. If the Premises or any
portion thereof is assigned or sublet pursuant to the terms of the Lease, the
number of parking spaces allotted to Licensee under paragraph 1 hereof shall
automatically be adjusted accordingly and Licensor and Licensee shall
immediately execute an amendment to this Agreement setting forth (i) the number
of spaces retained by Licensee, (ii) the number of spaces allotted to Licensee's
assignee or subtenant (which number shall not exceed the amount stated in
paragraph 1 above), (iii) the then current "market rate" to be charged Licensee
for the spaces allotted to its assignee or subtenant, and (iv) the security
deposit to be paid by Licensee for its assignee's or subtenant's parking cards.

     6.   LICENSEE INDEMNIFICATION. Use of said parking spaces and of the
parking areas in the Project shall be at the sole risk of Licensee. Unless
caused by the negligence or wrongful acts of Licensor, its agents or employees,
Licensee hereby agrees to defend, indemnify and hold Licensor harmless against
any liability, loss, cost or expense (including reasonable attorneys' fees) for
any damage to or loss or theft of any vehicle or property within any vehicle or
any other property (including property of Licensee), or injury to or death of
any person (including Licensee and Licensee's family, agents, employees,
visitors or customers), arising directly or indirectly out of or in connection
with the use by Licenses or such other persons of the parking areas or any part
thereof.

     7.   INTERRUPTION OF USE. Licensor shall not be liable to Licensee for any
interruption of Licensee's use of the rights granted hereunder due to repairs,
improvements or alterations of the parking areas or the Project, or due to any
labor controversy, or resulting from any cause beyond the reasonable control of
Licensor. However, Licensee shall be entitled to an abatement of the monthly fee
with regard to any assigned parking space to the extent it is prevented from
using such space and no reasonably similar alternative space is made available
to it by Licensor.

     8.   RULES AND REGULATION. Licensor's parking rules and regulations are
attached hereto. Licensor may adopt such other reasonable, nondiscriminatory
rules and regulations relating to the use of the parking areas as in Licensor's
opinion are necessary or desirable for the proper, orderly and safe use of the
parking areas. If Licensee fails to comply with the rules and regulations the
same shall constitute a default under the Lease for which Tenant shall be
entitled to notice and a period to cure as specified in the Lease for a
nonmonetary default. Licensee shall at all times be required to park in a lawful
manner, and no vehicle shall at any time be parked in more than one marked space
at a time Licensor shall be entitled to tow away any vehicle which is improperly
parked, at the vehicle

                           PARKING LICENSE AGREEMENT
                                    PAGE 1
<PAGE>
 
owner's sole cost and expense. In the event of such tow away, neither Licensor
nor any Mortgagee of Licensor shall have any liability therefor to Licensee or
to such vehicle owner.

     9.   LICENSOR'S PROPERTY RIGHTS. Licensor shall have the right to decrease
the size of any or all of the parking areas in the Project, to alter or
rearrange parking spaces and improvements in the parking areas, to take all or
any portion of the parking areas for purposes of maintaining, repairing or
restoring same, or for purposes of construction and operating structures thereon
or adjacent thereto, to have ingress and egress in connection with the exercise
of any such rights, and to do and perform such other acts with respect to the
parking areas as Licensor shall in its reasonable discretion deem appropriate.
Licensor may at any time and from time to time in its discretion designate any
portion of the parking areas in the Project for use as assigned parking, visitor
parking or employee parking. If Licensor establishes an "employee parking" area
or other assigned parking area for Licensee's employees to park in, Licensee
shall furnish Licensor, within five (5) days after written request to do so,
with a list of the vehicle license numbers of Licensee's employees parking in
the Project. Licensor may charge Licensee Ten Dollars ($10.00) per day for each
day or partial day for each vehicle parked by Licensee or any of its employees
in a parking space or area other than the space or parking area assigned or
designated for such vehicle. Licensor may tow away any such improperly parked
vehicles and may also attach violation notices or stickers to improperly parked
vehicles. In the event of such tow away, neither Licensor nor any Mortgagee of
Licensor shall have any liability therefor to Licensee or to such vehicle owner.

     10.  SECURITY DEPOSIT. If parking is in a controlled lot, a monthly parking
card or decal may be issued to Licensee for each parking space to be used by
Licensee hereunder. Licensee will pay a security deposit for each parking card
at the time of issuance of the card. Licensor shall have no obligation to accept
any such security deposit from anyone other than License. The security deposit
shall be held by Licensor to secure Licensee's due performance of its
obligations with regard to parking hereunder and the return to Licensor of such
parking card(s) in good condition, normal wear and tear excepted, upon
termination of Licensee's rights hereunder. Licensee shall be obligated to take
reasonable steps to protect such cards from warping or mutilation. Without
limitation as to the generality of the foregoing, Licensor may apply such
security deposit to remedy any default by Licensee hereunder and further, if
such card(s) are lost or mutilated, Licensor may apply any or all of said
deposit toward Licensor's cost of such card(s). If at any time Licensor applies
any or all of such security deposit as provided herein, Licensee shall be
obligated to deposit with Licensor the amount so applied by Licensor within ten
(10) days after written request therefor is given. Upon termination of
Licensee's rights hereunder and the return to Licensor of the aforementioned
card(s) (or cards issued in substitution thereof) the security deposit or
balance thereof shall be returned to Licensee provided Licensee is not then in
default hereunder. Licensor need not hold said security deposit in a separate
account.

     11.  REPLACEMENT CARDS. If for any reason (other than a malfunction for
which Licensee is not responsible hereunder) any card issued to Licensee is
requested by Licensee to be replaced, Licensee shall pay Licensor the then
current non-refundable charge for said replacement card.

     12.  MISCELLANEOUS. No waiver by Licensor of any breach of this agreement
by Licensee shall constitute a waiver of any other breach. Any amount due to
Licensor that is not paid when due shall bear interest at the maximum rate
allowable under law. In the event of any legal action taken or proceeding
brought to enforce the provisions hereof. the prevailing party shall be entitled
to recover its reasonable attorneys' fees and costs incurred in connection
therewith.

     DATED this ___________ day of ___________________________ 1996.

LICENSOR:                         BARCLAY CURCI INVESTMENT COMPANY,
                                  a California general partnership

                                  By: SC ENTERPRISES,
                                      a California limited partnership,
                                      a general partner

                                  By: SHURL CURCI,
                                      a general partner

                                  By: Roberta R Irish,
                                      his attorney-in-fact

LICENSEE:                         VETERINARY CENTERS OF AMERICA, INC.,
                                  a Delaware corporation

                                  By: ____________________________________
                                  Name: __________________________________
                                  Title: President

                                  By: ____________________________________
                                  Name: __________________________________
                                  Title: Secretary

                           PARKING LICENSE AGREEMENT
                                    PAGE 2
<PAGE>
 
                         PARKING RULES AND REGULATIONS


     1.   All claimed damage or loss must be reported and itemized in writing
delivered to the parking facility office or property manager's office within ten
business days after any claimed damage or loss occurs. Any claim not so made is
waived. Licensor has the option to make repairs at its expense of any claimed
damage within ten business days after filing a claim. In all court actions the
burden of proof to establish a claim remains with Licensee. Court actions by
Licensee for any claim must be filed within ninety days from date of parking, in
a court of jurisdiction where the claimed loss occurred. Licensor is not
responsible for damage by water, fire, or defective brakes, or parts, or for the
acts or omissions of others, or for loss of articles left in vehicles. The total
liability of Licensor is limited to $250.00 for all damages or loss to any
vehicle. Licensor is not responsible for loss of use.

     2.   Licensee shall not park or permit the parking of any vehicle under its
control in any parking area designated by Licensor as areas for parking by
visitors. Licensee shall not leave vehicles in the parking area overnight nor
park any vehicles in the parking areas other than automobiles, motorcycles,
motor driven or non-motor driven bicycles or four-wheeled trucks.

     3.   Parking stickers or any other device or form of identification
supplied by Licensor as a condition of use of the parking facilities shall
remain the property of Licensor. Such parking identification device must be
displayed as requested and may not be mutilated in any manner. The serial number
of the parking identification device may not be obliterated. Devices are not
transferable and any device in the possession of an unauthorized holder will be
void.

     4.   No extended term storage of vehicles shall be permitted.

     5.   Vehicles must be parked entirely within the painted stall lines of a
single parking stall.

     6.   All directional signs and arrows must be observed.

     7.   The speed limit within all parking areas shall be 5 miles per hour.

     8.   Parking is prohibited:

          (a) in areas not striped for parking;

          (b) in driveways;

          (c) where "no parking" signs are posted;

          (d) in cross-hatched areas; and

          (e) in such other areas as may be designated by Licensor or its
parking operator.

     9.   Every parker is required to park and lock his own vehicle unless
Licensor furnishes valet service. Valet parking attendants may refuse to drive
any vehicle reasonably believed to be unsafe.

     10.  Loss or theft of parking identification devices from vehicles must be
reported to the parking operator immediately, and a lost or stolen report must
be filed at that time. Licensor has the right to exclude any vehicles from the
parking facilities that does not have an identification device.

     11.  Any parking identification devices reported lost or stolen found on
any unauthorized vehicle will be confiscated and the illegal holder will be
subject to prosecution.

     12.  Lost or stolen identification devices found by the Licensee should be
reported to the parking facility office or property manager immediately to avoid
confusion.

     13.  Washing, waxing, cleaning or servicing of any vehicle in any area not
specifically reserved for such purpose is prohibited.

     14.  Licensee shall acquaint all persons to whom Licensee assigns parking
space of these Rules and Regulations. Parking facility managers or attendants
are not authorized to make or allow any exceptions to these Rules and
Regulations.

     15.  Licensor reserves the right to refuse the sale of monthly stickers or
other parking identification devices to any person and/or his agents or
representatives who willfully refuses to comply with these Rules and
Regulations.

                           PARKING LICENSE AGREEMENT
                                    PAGE 3

<PAGE>
 
                                                                    EXHIBIT 21.1

             VETERINARY CENTERS OF AMERICA, INC. AND SUBSIDIARIES

 
SUBSIDIARIES OF REGISTRANT
<TABLE>
<CAPTION>

            LEGAL NAME                      JURISDICTION            DOING BUSINESS AS
- -------------------------------------       ------------      --------------------------------
<S>                                         <C>               <C>
West Los Angeles Veterinary Medical
 Group, Inc.                                 California
 
Veterinary Centers of Monrovia, Inc.         California       VCA Santa Anita Animal Hospital 
VCA Clinical Veterinary Labs, Inc.           California                                           
Veterinary Centers of Lakewood/              California                                           
 Robertson, Inc.                                                                                  
Lakewood Animal Hospital, Inc.               California       VCA Lakewood Animal Hospital        
Robertson Blvd. Animal Hospital, Inc.        California       VCA Robertson Blvd. Animal          
                                                              Hospital                            
VCA of Orange Olive, Inc.                    California                                           
Bay Area Animal Hospital, Inc.               California                                           
VCA of Agoura, Inc.                          California       Agoura Meadows Veterinary           
                                                              Clinic                              
VCA of Phoenix, Inc.                         California                                           
Northern Animal Hospital Inc.                 Arizona         VCA Northern Animal Hospital        
VCA of San Jose, Inc.                        California       VCA Crocker Animal Hospital         
VCA Real Property Acquisition                California                                           
 Corporation                                                                                      
VCA of Colorado - Anderson, Inc.             California       VCA Anderson Animal Hospital        
Anderson Animal Hospital, Inc.                Colorado                                            
VCA - Animal Hospital West, Inc.             California                                           
Westwood Dog and Cat Hospital, Inc.          California       VCA Animal Hospital West            
VCA of Woodland Hills, Inc.                  California       VCA Parkwood Animal Hospital        
VCA of Teresita, Inc.                        California       VCA Teresita Animal Hospital        
VCA of Asher, Inc.                           California       VCA Asher Animal Hospital           
VCA Wingate, Inc.                            California                                           
Wingate, Inc.                                 Colorado        VCA Wingate Animal Hospital         
VCA-Mission, Inc.                            California       VCA Mission Animal Hospital         
VCA Albuquerque, Inc.                        California       VCA Veterinary Care Animal          
                                                              Hospital                            
VCA Wyoming Animal Hospital, Inc.            California                                           
</TABLE> 
<PAGE>
 
<TABLE>
<CAPTION>

            LEGAL NAME                      JURISDICTION            DOING BUSINESS AS
- -------------------------------------       ------------      --------------------------------
<S>                                         <C>               <C>
VCA Berwyn, Inc.                             California                                           
Berwyn Veterinary Associates, Inc.            Illinois        VCA Berwyn Animal Hospital          
VCA Specialty Pet Products, Inc.             California                                           
VCA Rossmoor, Inc.                           California                                           
Rossmoor-El Dorado Animal Hospital,          California       VCA-Rossmoor El Dorado Animal       
 Inc.                                                         Hospital                            
VCA Albany Animal Hospital, Inc.             California                                           
VCA West Mesa Animal Hospital, Inc.          California                                           
VCA Howell Branch Animal Hospital            California                                           
 Inc.                                                                                             
VCA Cacoosing Animal Hospital, Inc.          California                                           
Cacoosing Animal Hospital, Ltd.             Pennsylvania                                          
Cacoosing Pet Care & Nutrition Center,      Pennsylvania                                          
 Inc.                                                                                             
VCA Sinking Spring Animal Hospital,          California                                           
 Inc.                                                                                             
Vet Research Laboratories, LLC                Delaware                                            
VCA South County Animal Hospital,            California                                           
 Inc.                                                                                             
South County Veterinary Clinic, Inc.         California                                           
VCA Clinipath Labs, Inc.                     California                                           
VCA Florida Veterinary Labs, Inc.            California                                           
VCA Eagle River Animal Hospital, Inc.        California                                           
Eagle River Veterinary Hospital, Inc.          Alaska                                             
VCA Miller Animal Hospital, Inc.             California                                           
Miller Animal Hospital, Inc.                 California                                           
VCA Marina Animal Hospital, Inc.             California                                           
Veterinary Hospitals, Inc.                   California       Marina Veterinary Clinic            
VCA All Pet Animal Complex, Inc.             California                                           
VCA Castle Shannon Animal Hospital,          California                                           
 Inc.                                                                                             
VCA APAC Animal Hospital, Inc.               California                                           
VCA Northwest Diagnostic Labs, Inc.          California                                           
VCA Information Systems, Inc.                California                                           
</TABLE> 

                                       2
<PAGE>
 
<TABLE>
<CAPTION>

             LEGAL NAME                     JURISDICTION            DOING BUSINESS AS
- -------------------------------------       ------------      --------------------------------
<S>                                         <C>               <C>
VCA East Anchorage Animal Hospital,          California                                           
 Inc.                                                                                             
East Anchorage Veterinary Hospital,            Alaska                                             
 Inc.                                                                                             
VCA Fox Chapel - Shadyside Animal,           California                                           
 Inc.                                                                                             
Fox Chapel Animal Hospital, Inc.            Pennsylvania                                          
VCA Companion Animal Hospital, Inc.          California                                           
VCA Animal Hospital East, Inc.               California                                           
MS Animal Hospitals, Inc.                    California                                           
VCA Professional Animal Lab, Inc.            California                                           
VCA Detwiler Animal Hospital, Inc.           California                                           
Detwiler Veterinary Clinic, Inc.            Pennsylvania                                          
VCA Lakeside Animal Hospital, Inc.           California                                           
VCA Cenvet, Inc.                             California                                           
VCA Golden Cove Animal Hospital,             California                                           
 Inc.                                                                                             
BerLa, Inc.                                  California       VCA Golden Cove Animal              
                                                              Hospital                            
VCA Tampa Animal Hospital, Inc.              California                                           
Tampa Animal Medical Center, Inc.             Florida         VCA Tampa Animal Hospital           
VCA Silver Spur Animal Hospital, Inc.        California                                           
Silver Spur Animal Hospital, Inc.            California                                           
VCA Lewis Animal Hospital, Inc.              California                                           
VCA Lewelling Animal Hospital, Inc.          California                                           
Lewelling Veterinary Hospital, Inc.          California                                           
VCA South Shore Animal Hospital, Inc.        California                                           
VCA Alpine Animal Hospital, Inc.             California                                           
VCA Greater Savannah Animal                  California                                           
 Hospital, Inc.                                                                                   
VCA Kaneohe Animal Hospital, Inc.            California                                           
VCA Elkton Animal Hospital, Inc.             California                                           
VCA Rotherwood Animal Hospital, Inc.         California                                           
VCA Lammers Animal Hospital, Inc.            California                                           
Lammers Veterinary Hospital, Inc.            California                                           
</TABLE> 

                                       3
<PAGE>
 
<TABLE>
<CAPTION>

            LEGAL NAME                      JURISDICTION            DOING BUSINESS AS
- -------------------------------------       ------------      --------------------------------
<S>                                         <C>               <C>
VCA Referral Associates Animal               California                                           
 Hospital, Inc.                                                                                   
VCA Clarmar Animal Hospital, Inc.            California                                           
VCA Conewago Animal Hospital, Inc.           California                                           
VCA St. Petersburg Animal Hospital,          California                                           
 Inc.                                                                                             
VCA Northboro Animal Hospital, Inc.          California                                           
PRI Merger Company, Inc.                      Delaware                                            
Golden Merger Corporation                     Delaware                                            
VCA Beacon Hill Cat Hospital, Inc.           California                                           
VCA Animal Care Center, Inc.                 California                                           
VCA Lakeshore Animal Hospital, Inc.          California                                           
VCA Bering Sea Animal Hospital, Inc.                                                              
VCA Acacia Animal Hospital, Inc.                                                                  
VCA Merrimack Animal Hospital, Inc.                                                               
VCA Rockcreek Animal Hospital, Inc.                                                               
Pets' Rx, Inc.                                Delaware                                            
Pets' Rx Nevada, Inc.                          Nevada                                             
William C. Fouts, Ltd.                         Nevada         Decatur Animal Clinic               
H.B. Animal Clinics, Inc.                    California       Blossom Veterinary Clinic           
Princeton Animal Hospital                    California       Almaden Valley Veterinary           
                                                              Hospital                             
Spring Mountain Animal Hospital,               Nevada
 L.L.C.
Old Town Veterinary Hospital, Inc.            Virginia
North Rockville Veterinary Hospital,          Maryland
 Inc.
 
</TABLE>

                                       4

<PAGE>
                  CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the use of our reports
and to all references to our Firm included in or made a part of this
Registration Statement.


/s/ Arthur Andersen LLP 

ARTHUR ANDERSEN LLP


June 24, 1996















<PAGE>
 
                                                                    EXHIBIT 23.2


                      CONSENT OF INDEPENDENT ACCOUNTANTS


We hereby consent to the use in the Prospectus constituting part of this 
Registration Statement on Form S-4 of our reports as of the dates and relating 
to the financial statements of the companies listed below, which appear in such 
Prospectus:
<TABLE> 
<CAPTION> 
               COMPANY                                     DATE OF REPORT
               -------                                     --------------
<S>                                                        <C> 
The Pet Practice, Inc. ...................................  March 22, 1996

Professional Veterinary Hospitals of America, Inc. .......  March 29, 1995
</TABLE> 

We also consent to the references to us under the headings "Experts" and 
"Selected Financial Data" in such Prospectus.  However, it should be noted that 
Price Waterhouse LLP has not prepared or certified such "Selected Financial 
Data."



/s/ Price Waterhouse LLP
PRICE WATERHOUSE LLP
Philadelphia, PA
June 20, 1996

<PAGE>
 
                   CONSENT OF NATIONAL WESTMINSTER BANK PLC

The Board of Directors
The Pet Practice, Inc.
1018 West Ninth Avenue
King of Prussia, Pennsylvania  19406

Members of the Board:

     We hereby consent to the inclusion of our opinion letter to the Board of 
Directors of Veterinary Centers of America, Inc. ("VCA") relating to the 
proposed merger of The Pet Practice, Inc. with and into a wholly owned 
subsidiary of VCA and references made to our firm and such opinion in "SUMMARY 
OF JOINT PROXY STATEMENT/PROSPECTUS--The Merger--VCA's Reasons for the Merger; 
Recommendations of the VCA Board," "--Opinion of VCA's Financial Advisor" and 
"THE MERGER--Background of the Merger," "-- VCA's Reasons for the Merger; 
Recommendations of the VCA Board" and "--Opinions of Financial Advisors--VCA." 
In giving such consent, we do not admit that we come within the category of 
persons whose consent is required under, and we do not admit that we are 
"experts" for purposes of, the Securities Act of 1933, as amended, and the rules
and regulations promulgated thereunder.



                                       By: /s/ National Westminster Bank PLC
                                           _________________________________
                                            National Westminster Bank PLC


New York, New York
June 24, 1996


<PAGE>
 
                                                                    EXHIBIT 99.2


                                    CONSENT
                                      OF
                               SMITH BARNEY INC.


The Board of Directors
The Pet Practice, Inc.
1018 West Ninth Avenue
King of Prussia, Pennsylvania 19406

Members of the Board:

          We hereby consent to (i) the inclusion of our opinion letter to the
Board of Directors of The Pet Practice, Inc. ("Pet Practice") as Appendix C to
the Joint Proxy Statement/Prospectus of Pet Practice and Veterinary Centers of
America, Inc. ("VCA") relating to the proposed merger of Pet Practice with and
into a wholly owned subsidiary of VCA and (ii) references made to our firm and
such opinion in "SUMMARY OF JOINT PROXY STATEMENT/PROSPECTUS--The Merger--
Opinion of Pet Practice's Financial Advisor" and "THE MERGER--Background of the
Merger," "--Pet Practice's Reasons for the Merger; Recommendations of the Pet
Practice Board" and "--Opinions of Financial Advisor--Pet Practice." In giving
such consent, we do not admit that we come within the category of persons whose
consent is required under, and we do not admit that we are "experts" for
purposes of, the Securities Act of 1933, as amended, and the rules and
regulations promulgated thereunder.



                                       By:  /s/ Smith Barney Inc.
                                            -----------------------------------
                                            SMITH BARNEY INC.


New York, New York
June 21, 1996


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