VIRBAC CORP
SC 13E4/A, 1999-04-12
PHARMACEUTICAL PREPARATIONS
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     As filed with the Securities and Exchange Commission on March 18, 1999
================================================================================

                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
                                  ----------
                                SCHEDULE 13E-4
                         ISSUER TENDER OFFER STATEMENT
     (PURSUANT TO SECTION 13(e)(1) OF THE SECURITIES EXCHANGE ACT OF 1934)
                                  ----------
                              VIRBAC CORPORATION
                             (Name of the Issuer)

                              VIRBAC CORPORATION
                     (Name of Person(s) Filing Statement)

                    COMMON STOCK, $0.01 PAR VALUE PER SHARE
                        (Title of Class of Securities)

                                    927649
                     (CUSIP Number of Class of Securities)

                                BRIAN A. CROOK
                              VIRBAC CORPORATION
                            3200 Meacham Boulevard
                           Fort Worth, Texas  76137
                                (816) 831-5030
  (Name, Address and Telephone Number of Person Authorized to Receive Notices
        and Communications on Behalf of the Person(s) Filing Statement)

                                  Copies to:

                             STEPHEN L. FLUCKIGER
                          JONES, DAY, REAVIS & POGUE
                           2300 TRAMMELL CROW CENTER
                               2001 ROSS AVENUE
                             DALLAS, TEXAS  75201
                                (214) 220-3939
                        (Agent for Service of Process)

                                March 18, 1999
    (Date Tender Offer First Published, Sent or Given to Security Holders)
                                  ----------
                                  CALCULATION OF FILING FEE

- --------------------------------------------------------------------------------
TRANSACTION VALUATION*                                     AMOUNT OF FILING FEE
$3,000,000                                                                 $600
- --------------------------------------------------------------------------------

*      Calculated  solely for the purpose of  determining  the filing fee, based
       upon the purchase of 1,000,000  shares at the maximum  tender offer price
       of $3.00 per share.

[ ] Check box if any of the fee is offset as  provided  by Rule  0-11(a)(2)
    and  identify  the filing with which the  offsetting  fee was  previously
    paid.  Identify the previous filing by registration  statement number, or
    the Form or Schedule and the date of its filing.

       Amount Previously Paid:      N/A
       Form or Registration No.:    N/A
       Filing Party:                N/A
       Date Filed:                  N/A

================================================================================



<PAGE>




ITEM 1.      SECURITY AND ISSUER.

(a)  The issuer of the securities to which this Schedule 13E-4 relates is Virbac
     Corporation, a Delaware corporation (the "Company"), and the address of its
     principal  executive  office,  and its  mailing  address,  is 3200  Meacham
     Boulevard, Fort Worth, Texas 76137.

(b)  This  Schedule  13E-4 relates to the offer by the Company to purchase up to
     1,000,000  shares of its  common  stock,  $0.01  par  value per share  (the
     "Shares"),  21,968,197  of which  Shares were  outstanding  as of March 17,
     1999, at a price of $3.00 per Share in cash,  upon the terms and subject to
     the  conditions  set forth in the Offer to  Purchase,  dated March 18, 1999
     (the "Offer to Purchase"),  and in the related Letter of Transmittal (which
     together constitute the "Offer"),  copies of which are attached as Exhibits
     (a)(1) and (a)(2),  respectively,  and  incorporated  herein by  reference.
     Employees,  officers and  directors of the Company may  participate  in the
     Offer  on  the  same  basis  as  the  Company's  other  stockholders.   The
     information  set forth in  "Introduction",  Section  1,  "Number of Shares;
     Proration"   and  Section  11   "Interests   of  Directors   and  Officers;
     Transactions and Arrangements  Concerning  Shares" of the Offer to Purchase
     is incorporated herein by reference.

(c)  The information set forth in "Introduction"  and Section 6, "Price Range of
     Shares;  Dividends on the Shares" of the Offer to Purchase is  incorporated
     herein by reference.

(d)  Not applicable.

ITEM 2.      SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

(a)  The  information  set forth in Section 10,  "Source and Amount of Funds" of
     the Offer to Purchase is incorporated herein by reference.

(b)  Not applicable.

ITEM 3.      PURPOSE OF THE TENDER OFFER AND PLANS OR PROPOSALS OF THE
             ISSUER OR AFFILIATE.

(a)-(j) The information set forth in  "Introduction,"  Section 7, "Effect of the
     Offer on the Market for Shares,"  Section 8, "Background and Purpose of the
     Offer," Section 10, "Source and Amount of Funds," and Section 11, "Interest
     of Directors and Officers; Transactions and Arrangements Concerning Shares"
     of the Offer to Purchase is incorporated herein by reference.

ITEM 4.      INTEREST IN SECURITIES OF THE ISSUER.

The information  set forth in Section 8,  "Background and Purpose of the Offer,"
Section 9,  "Certain  Information  Concerning  AGNU and Virbac," and Section 11,
"Interests of Directors and Officers;  Transactions and Arrangements  Concerning
Shares" of the Offer to Purchase is incorporated herein by reference.

ITEM 5.      CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS
             WITH RESPECT TO THE ISSUER'S SECURITIES.

The information set forth in  "Introduction,"  Section 10, "Source and Amount of
Funds,"  Section 8,  "Background  and  Purpose of the  Offer,"  and  Section 11,
"Interests of Directors and Officers;  Transactions and Arrangements  Concerning
Shares" of the Offer to Purchase is incorporated herein by reference.

ITEM 6.      PERSONS RETAINED, EMPLOYED, OR TO BE COMPENSATED.

The information set forth in "Introduction"  and Section 15, "Fees and Expenses"
of the Offer to Purchase is incorporated herein by reference.

ITEM 7.      FINANCIAL INFORMATION.

(a)-(b) The information set forth in Section 9, "Certain Information  Concerning
     AGNU and  Virbac"  of the  Offer to  Purchase  is  incorporated  herein  by
     reference.

ITEM 8.      ADDITIONAL INFORMATION.



<PAGE>



(a)  Not applicable.

(b)  The  information  set forth in Section 14,  "Certain  Legal Matters" of the
     Offer to Purchase is incorporated herein by reference.

(c)  The  information set forth in Section 7, "Effect of the Offer on the Market
     for Shares" of the Offer to Purchase is incorporated herein by reference.

(d)  Not applicable.

(e)  The  information  set  forth  in  the  Offer  to  Purchase  and  Letter  of
     Transmittal is incorporated herein by reference.

ITEM 9.      MATERIAL TO BE FILED AS EXHIBITS.

(a)(1) Form of Offer to Purchase, dated March 18, 1999.

(a)(2) Form of  Letter  of  Transmittal  (including  Certification  of  Taxpayer
     Identification Number on Form W-9).

(a)(3) Form of Notice of Guaranteed Delivery.

(a)(4) Form of Letter to Brokers, Dealers, Commercial Banks, Trust Companies and
     Other Nominees.

(a)(5) Form of Letter to Clients for Use by Brokers, Dealers,  Commercial Banks,
     Trust Companies and Other Nominees.

(a)(6)  Guidelines  for  Certification  of  Taxpayer  Identification  Number  on
     Substitute Form W-9.

(b)  Not applicable.

(c) Stockholders' Agreement dated February 8, 1998.

(d)  Not applicable.

(e)  Not applicable.

(f)  Not applicable.


                                            SIGNATURE

             After due inquiry  and to the best of my  knowledge  and belief,  I
certify that the information set forth in this Schedule 13E-4 is true,  complete
and correct.


Date: March 18, 1999                        VIRBAC CORPORATION


                                            By:/s/ Brian A. Crook  
                                                 Brian A. Crook
                                                 President



<PAGE>



                                                                 Exhibit (a)(1)



                               VIRBAC CORPORATION
                     (Formerly Agri-Nutrition Group Limited)
                           Offer to Purchase for Cash
                   Up to 1,000,000 Shares of its Common Stock



       THE  OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 5:00 P.M.,
           NEW YORK CITY TIME, ON MONDAY, APRIL 19, 1999, UNLESS
                            THE OFFER IS EXTENDED.
- --------------------------------------------------------------------------------


             Virbac Corporation, a Delaware corporation (formerly Agri-Nutrition
Group Limited) (the  "Company"),  invites its stockholders  ("Stockholders")  to
tender shares of its Common Stock, par value $0.01 per share (the "Shares"),  at
$3.00 per Share  (the  "Purchase  Price")  upon the  terms  and  subject  to the
conditions  set forth  herein and in the related  Letter of  Transmittal  (which
together  constitute  the  "Offer").  The Company will  purchase up to 1,000,000
Shares that are validly tendered and not withdrawn on or prior to the Expiration
Date (as defined in Section 1), upon the terms and subject to the  conditions of
the Offer,  including the provisions  thereof  relating to proration,  described
herein.  The  Purchase  Price will be paid in cash,  net to the seller,  without
interest  thereon,  with respect to all Shares  purchased.  Shares not purchased
because of proration will be returned.

             On  March  17,   1999,   the  last  full  trading  day  before  the
commencement  of the Offer,  the last reported sale price on the Nasdaq National
Market was $1.563 per Share.  Stockholders  are urged to obtain  current  market
quotations for the Shares.



The Offer to Purchase is not conditioned upon any minimum number of Shares being
tendered. The Offer is, however, subject to other conditions. See Section 13. If
fewer than 1,000,000 Shares are tendered in the Offer, certain stockholders have
agreed to tender Shares equal to the difference between 1,000,000 Shares and the
amount actually tendered.  See Section 11.
- --------------------------------------------------------------------------------


             NO PERSON HAS BEEN AUTHORIZED TO MAKE ANY  RECOMMENDATION ON BEHALF
OF THE COMPANY AS TO WHETHER  STOCKHOLDERS  SHOULD TENDER SHARES PURSUANT TO THE
OFFER.  NO PERSON HAS BEEN  AUTHORIZED  TO GIVE ANY  INFORMATION  OR TO MAKE ANY
REPRESENTATIONS  IN CONNECTION WITH THE OFFER OTHER THAN THOSE CONTAINED  HEREIN
OR IN THE RELATED LETTER OF TRANSMITTAL.  IF GIVEN OR MADE, SUCH  RECOMMENDATION
AND SUCH OTHER INFORMATION AND REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING
BEEN AUTHORIZED BY THE COMPANY.

             THIS  TRANSACTION  HAS NOT  BEEN  APPROVED  OR  DISAPPROVED  BY THE
SECURITIES  AND  EXCHANGE  COMMISSION  NOR HAS THE  COMMISSION  PASSED  UPON THE
FAIRNESS OR MERITS OF SUCH  TRANSACTION NOR UPON THE ACCURACY OR ADEQUACY OF THE
INFORMATION  CONTAINED IN THIS DOCUMENT.  ANY  REPRESENTATION TO THE CONTRARY IS
UNLAWFUL.

                     The Information Agent for the Offer is:


                    ChaseMellon Shareholder Services, L.L.C.
                              450 West 33rd Street
                            New York, New York  10001


               The date of this Offer to Purchase is March 18, 1999.


<PAGE>




                                            IMPORTANT

             Any Stockholder  desiring to tender all or a portion of his, her or
its Shares  should  either (1)  complete and sign the  appropriate  Letter(s) of
Transmittal  (or a manually  signed  facsimile  thereof) in accordance  with the
instructions in such Letter(s) of Transmittal, mail or deliver such Letter(s) of
Transmittal  and  any  other  required  documents  to  ChaseMellon   Shareholder
Services,  L.L.C.  (the  "Depositary"  and the  "Information  Agent") and either
deliver the  certificates  for those  Shares to the  Depositary  along with such
Letter(s) of Transmittal  or tender those Shares  pursuant to the procedures for
book-entry  transfer  set forth in Section 2 hereof or (2)  request  its broker,
dealer,  commercial bank, trust company or other nominee to effect the tender on
its behalf. Any Stockholder whose Shares are registered in the name of a broker,
dealer,  commercial  bank,  trust  company or other  nominee  must  contact that
broker,  dealer,  commercial  bank,  trust  company  or  other  nominee  if  the
Stockholder desires to tender such Shares.

     THE BOARD OF DIRECTORS OF THE COMPANY HAS  UNANIMOUSLY  APPROVED THE OFFER.
NEITHER THE COMPANY NOR ITS BOARD OF DIRECTORS MAKES ANY  RECOMMENDATION  TO ANY
STOCKHOLDER  AS TO WHETHER TO TENDER ALL OR ANY SHARES.  EACH  STOCKHOLDER  MUST
MAKE HIS, HER OR ITS OWN DECISION AS TO WHETHER TO TENDER SHARES AND, IF SO, HOW
MANY TO TENDER. Directors,  officers and employees of the Company who own Shares
may  participate  in the  Offer  on  the  same  basis  as  the  Company's  other
Stockholders.

             Questions  and  requests  for  assistance  may be  directed  to the
Information  Agent at its  address  and  telephone  number set forth on the back
cover of this Offer to Purchase. Requests for additional copies of this Offer to
Purchase,  the Letter of Transmittal and other related materials may be directed
to the  Information  Agent or to brokers,  dealers,  commercial  banks and trust
companies.

                                           ----------





<PAGE>



                                        TABLE OF CONTENTS
<TABLE>
<CAPTION>

                                                                                             Page
<S>                                                                                          <C>
INTRODUCTION....................................................................................1

1.     Number of Shares; Proration..............................................................2

2.     Procedure for Tendering Shares...........................................................3

3.     Acceptance for Payment and Payment for Shares............................................5

4.     Withdrawal Rights........................................................................6

5.     Certain Federal Income Tax Consequences of the Offer.....................................7

6.     Price Range of the Shares; Dividends on the Shares......................................10

7.     Effect of the Offer on the Market for Shares............................................10

8.     Background and Purpose of the Offer.....................................................11

9.     Certain Information Concerning AGNU and Virbac..........................................11

10.    Source and Amount of Funds..............................................................22

11.    Interests of Directors and Officers; Transactions and Arrangements Concerning Shares....22

12.    Extension of Tender Period; Termination; Amendments.....................................22

13.    Certain Conditions of the Offer.........................................................23

14.    Certain Legal Matters...................................................................24

15.    Fees and Expenses.......................................................................24

16.    Miscellaneous...........................................................................25
</TABLE>


         CERTAIN SECTIONS OF THIS OFFER TO PURCHASE,  INCLUDING, BUT NOT LIMITED
TO, SECTION 7 ENTITLED "EFFECT OF THE OFFER ON THE MARKET FOR SHARES," SECTION 8
ENTITLED  "BACKGROUND AND PURPOSE OF THE OFFER" AND SECTION 9 ENTITLED  "CERTAIN
INFORMATION  CONCERNING  AGNU AND  VIRBAC,"  CONTAIN  CERTAIN  "FORWARD  LOOKING
STATEMENTS" AS SUCH TERM IS USED UNDER THE PRIVATE SECURITIES  LITIGATION REFORM
ACT OF 1995.  THE COMPANY'S  PERFORMANCE  MAY BE AFFECTED BY MANY  UNCERTAINTIES
THAT EXIST IN THE COMPANY'S  OPERATIONS AND BUSINESS  ENVIRONMENT THAT MAY CAUSE
ACTUAL  PERFORMANCE  TO DIFFER  MATERIALLY  FROM  PERFORMANCE  SUGGESTED  BY ANY
FORWARD LOOKING STATEMENTS.


                                                7

<PAGE>



To the Holders of Shares of Common Stock of Virbac Corporation:

                               INTRODUCTION

         On  October  16,  1998,  Agri-Nutrition  Group  Limited  ("AGNU"),  the
predecessor  to the  Company,  entered  into an  Agreement  and  Plan of  Merger
("Merger  Agreement") with Virbac S.A., a French corporation  ("VBSA"),  Virbac,
Inc., a Delaware corporation and indirect subsidiary of VBSA ("Virbac"), and, by
an Addendum dated January 18, 1999,  Interlab S.A.S., a French  corporation that
is a wholly  owned  subsidiary  of VBSA and the  parent of Virbac  ("Interlab").
Pursuant to the Merger  Agreement  Virbac received a $15.7 million cash infusion
("Cash  Infusion")  from VBSA through  Interlab.  Thereafter,  Virbac was merged
("Merger") with and into AGNU, with AGNU being the surviving entity and Interlab
its controlling  stockholder,  and AGNU issued  12,580,918  shares of its Common
Stock (the "VBSA Shares") to Interlab.

         AGNU agreed in the Merger Agreement to make and complete a tender offer
to repurchase up to 1,000,000 Shares, except for the VBSA Shares, which Interlab
and VBSA  agreed  not to tender,  at a price of $3.00 per  share.  This Offer is
being made in compliance with the foregoing agreement.  Accordingly, the Company
invites its  Stockholders to tender Shares of its Common Stock, at a price,  net
to the seller in cash,  without interest  thereon,  of $3.00 per Share, upon the
terms and subject to the  conditions  set forth herein and in the related Letter
of Transmittal.

     THE OFFER IS NOT  CONDITIONED  UPON ANY  MINIMUM  NUMBER  OF  SHARES  BEING
TENDERED.  THE OFFER IS,  HOWEVER,  SUBJECT TO  CERTAIN  OTHER  CONDITIONS.  SEE
SECTION 13. If fewer than  1,000,000  Shares are tendered in the Offer,  certain
Stockholders  have  agreed  to tender  Shares  equal to the  difference  between
1,000,000 Shares and the amount actually tendered. See Section 11.

         If more than  1,000,000  Shares  have  been  validly  tendered  and not
withdrawn on or prior to the Expiration  Date, the Company will purchase  Shares
on a pro rata basis from all Stockholders  who validly tender Shares.  Tendering
Stockholders  will not be obligated to pay brokerage  commissions,  solicitation
fees or,  subject  to the  Instructions  to the  Letter  of  Transmittal,  stock
transfer  taxes on the purchase of Shares by the  Company.  The Company will pay
the expenses of the Information Agent and the Depositary  incurred in connection
with the Offer.  See Section 15. Any  tendering  Stockholder  or other payee who
fails to  complete  and sign the  substitute  Form W-9 that is  included  in the
Letter of Transmittal  may be subject to United States federal income tax backup
withholding  equal to 31% of the gross proceeds  payable to such  Stockholder or
other payee pursuant to the Offer. See Section 5.

         THE BOARD OF DIRECTORS HAS UNANIMOUSLY  APPROVED THE OFFER. NEITHER THE
COMPANY NOR ITS BOARD OF DIRECTORS,  HOWEVER,  MAKES ANY  RECOMMENDATION  TO ANY
STOCKHOLDER  AS TO WHETHER TO TENDER ALL OR ANY SHARES.  EACH  STOCKHOLDER  MUST
MAKE HIS OR HER OWN  DECISION  AS TO WHETHER TO TENDER  SHARES  AND, IF SO , HOW
MANY SHARES TO TENDER. Directors,  officers and employees of the Company who own
Shares may  participate  in the Offer on the same basis as the  Company's  other
Stockholders.

         Exclusive of the 12,580,918  VBSA Shares,  which pursuant to the Merger
Agreement  will not be  tendered  in the Offer (see  Section  8), the  1,000,000
Shares that the Company is offering to purchase  pursuant to the Offer represent
approximately 11% of the Company's  21,968,197 issued and outstanding  Shares as
of March 17, 1999.

     THE SHARES ARE TRADED ON THE NASDAQ  NATIONAL  MARKET  ("NNM").  THE SHARES
TRADE UNDER THE SYMBOL "VBAC". ON MARCH 17, 1999 THE CLOSING PRICE OF THE SHARES
ON THE NNM WAS  $1.5653  PER SHARE.  SEE  SECTION 6.  STOCKHOLDERS  ARE URGED TO
OBTAIN CURRENT MARKET QUOTATIONS FOR THE SHARES.

         This Offer to Purchase and the related  Letter of  Transmittal  contain
important information which should be read carefully before any decision is made
with respect to the Offer.


                                                8

<PAGE>


1.                Number of Shares; Proration

         Upon the terms and subject to the  conditions  described  herein and in
the Letter of  Transmittal,  the Company will purchase,  at a price of $3.00 per
Share,  up to  1,000,000  Shares  that are  validly  tendered  and not  properly
withdrawn on or prior to the Expiration  Date in accordance  with Section 4. The
later of 5:00 p.m., New York City time, on Monday, April 19, 1999, or the latest
time and date to which the Offer is extended pursuant to Section 12, is referred
to herein as the "Expiration  Date." If the Offer is oversubscribed as described
below,  only Shares tendered on or prior to the Expiration Date will be eligible
for proration. The proration period also expires on the Expiration Date.

         The Offer is not  conditioned  on any  minimum  number of Shares  being
tendered.  The Offer is,  however,  subject to  certain  other  conditions.  See
Section 13. If fewer than  1,000,000  Shares are tendered in the Offer,  certain
stockholders  have  agreed  to tender  Shares  equal to the  difference  between
1,000,000 Shares and the amount actually tendered. See Section 11.

         All Shares  purchased  pursuant to the Offer will be  purchased  at the
Purchase  Price.  All  Shares not  purchased  pursuant  to the Offer  because of
proration  will be  returned  to the  tendering  Stockholders  at the  Company's
expense as promptly as practicable following the Expiration Date.

         Upon the terms and subject to the conditions of the Offer, if 1,000,000
or fewer Shares have been validly  tendered and not withdrawn on or prior to the
Expiration  Date, the Company will purchase all such Shares.  Upon the terms and
subject to the conditions of the Offer, if more than 1,000,000  Shares have been
validly  tendered and not  withdrawn  on or prior to the  Expiration  Date,  the
Company will purchase all Shares validly  tendered and not withdrawn on or prior
to the  Expiration  Date on a pro rata basis (with  appropriate  adjustments  to
avoid purchases of fractional  Shares).  The Letter of Transmittal  affords each
tendering  Stockholder  the  opportunity  to designate  the order of priority in
which Shares tendered are to be purchased in the event of proration.

         If  proration  of tendered  Shares is  required,  the Company  does not
expect  that it  will be able to  announce  the  final  proration  factor  or to
commence  payment  for  any  Shares  purchased   pursuant  to  the  Offer  until
approximately  seven NNM trading  days after the  Expiration  Date.  Preliminary
results  of  proration  will be  announced  by  press  release  as  promptly  as
practicable  after the  Expiration  Date.  Holders  of Shares  may  obtain  such
preliminary information from the Information Agent.

         The Company  expressly  reserves the right, in its sole discretion,  at
any time or from time to time,  to extend  the period of time  during  which the
Offer  is open by  giving  oral  or  written  notice  of such  extension  to the
Depositary and making a public announcement  thereof.  See Section 12. There can
be no assurance, however, that the Company will exercise its right to extend the
Offer.

         For purposes of the Offer,  a "business day" means any day other than a
Saturday,  Sunday or federal  holiday and consists of the time period from 12:01
a.m. through 12:00 midnight, New York City time.

         Copies of this Offer to Purchase and the related  Letter of Transmittal
are being  mailed to record  holders of Shares and will be furnished to brokers,
banks and similar persons whose names, or the names of whose nominees, appear on
the Company's stockholder list or, if applicable, who are listed as participants
in a clearing agency's  security position listing for subsequent  transmittal to
beneficial owners of Shares.

         ANY TENDERING  STOCKHOLDER  OR OTHER PAYEE WHO FAILS TO COMPLETE  FULLY
AND SIGN THE SUBSTITUTE  FORM W-9 INCLUDED IN THE LETTER OF TRANSMITTAL  (OR, IN
THE CASE OF A NONCORPORATE FOREIGN STOCKHOLDER,  A FORM W-8, WHICH IS OBTAINABLE
FROM THE DEPOSITARY)  MAY BE SUBJECT TO A FEDERAL BACKUP  WITHHOLDING TAX OF 31%
OF THE GROSS PROCEEDS TO BE PAID TO SUCH  STOCKHOLDER OR OTHER PAYEE PURSUANT TO
THE OFFER. SEE INSTRUCTIONS 12 AND 13 OF THE LETTER OF TRANSMITTAL.


                                                9

<PAGE>



2.                Procedure for Tendering Shares

         Proper Tender of Shares.  For Shares to be validly tendered pursuant to
the  Offer,  either (i) the  appropriate  Letter of  Transmittal  (or a manually
signed  facsimile  thereof),  properly  completed  and duly  executed,  with any
required signature  guarantees and any other documents required by the Letter of
Transmittal,  must be received by the  Depositary  at one of its  addresses  set
forth on the back cover of this Offer to Purchase on or prior to the  Expiration
Date and either (a) certificates  representing  tendered Shares must be received
by the Depositary at any one of those  addresses prior to the Expiration Date or
(b) the Shares must be  delivered  pursuant  to the  procedures  for  book-entry
transfer set forth below and a Book-Entry  Confirmation  must be received by the
Depositary on or prior to the Expiration Date or (ii) the tendering  Stockholder
must  comply  with the  guaranteed  delivery  procedures  set  forth  below.  No
alternative,  conditional or contingent tenders will be accepted.  IF ANY OF THE
SHARES TENDERED ARE REGISTERED IN DIFFERENT NAMES ON DIFFERENT CERTIFICATES,  IT
WILL BE  NECESSARY  TO  COMPLETE,  SIGN AND SUBMIT AS MANY  SEPARATE  LETTERS OF
TRANSMITTAL AS THERE ARE DIFFERENT REGISTRATIONS OF CERTIFICATES (OR RECEIPTS).

         Book-Entry  Transfer.  The  Depositary  will  establish an account with
respect to the Shares at The Depository Trust Company (the "Book-Entry  Transfer
Facility")  for purposes of the Offer within two business days after the date of
this Offer to Purchase.  Any financial  institution that is a participant in the
Book-Entry  Transfer  Facility system may make book-entry  delivery of Shares by
causing the applicable  Book-Entry Transfer Facility to transfer the Shares into
the Depositary's  account at the Book-Entry Transfer Facility in accordance with
the  Book-Entry  Transfer  Facility's  procedures  for such  transfer.  However,
although delivery of the Shares may be effected through book-entry transfer into
the Depositary's  account at the Book-Entry  Transfer Facility,  the appropriate
Letter  of  Transmittal  (or a  manually  signed  facsimile  thereof),  properly
completed and duly executed with any required signature guarantees and any other
required  documents  must, in any case, be transmitted  to, and received by, the
Depositary  at one of its addresses set forth on the back cover of this Offer to
Purchase prior to the Expiration Date, or the tendering  Stockholder must comply
with the guaranteed delivery  procedures  described below. The confirmation of a
book-entry  transfer of Shares  into the  Depositary's  account at a  Book-Entry
Transfer   Facility  as  described   above  is  referred  to  as  a  "Book-Entry
Confirmation."  Delivery of the Letter of  Transmittal  or other  documents to a
Book-Entry  Transfer  Facility  does not  constitute  delivery  of the Letter of
Transmittal or such other documents to the Depositary.

         Signature Guarantees and Method of Delivery.  No signature guarantee is
required: (i) if the Letter of Transmittal is signed by the registered holder of
the Shares  (which  term,  for  purposes  of this  Section 2, shall  include any
participant in a Book-Entry  Transfer  Facility whose name appears on a security
position listing as the owner of the Shares) tendered  therewith and such holder
has not completed either the box entitled "Special Delivery Instructions" or the
box entitled "Special Payment Instructions" on the Letter of Transmittal or (ii)
if Shares are tendered for the account of a bank, broker,  dealer, credit union,
savings  association  or other entity which is a member in good  standing of the
Securities Transfer Agents Medallion Program or a bank, broker,  dealer,  credit
union,  savings association or other entity (each of the foregoing  constituting
an "Eligible  Institution"),  which is an "eligible  guarantor  institution," as
such term is defined in Rule 17Ad-15 under the Securities  Exchange Act of 1934,
as amended ("Exchange Act"). See Instruction 1 of the Letter of Transmittal.  If
a  certificate  for Shares is  registered in the name of a person other than the
person executing a Letter of Transmittal, or if payment is to be made, or Shares
not  purchased  or  tendered  are to be  issued,  to a  person  other  than  the
registered  holder,  then the certificate  must be endorsed or accompanied by an
appropriate  stock  power,  in either  case,  signed  exactly as the name of the
registered holder appears on the certificate,  with the signature  guaranteed by
an Eligible Institution.

         In all cases,  Shares  shall not be deemed  validly  tendered  unless a
properly completed and duly executed Letter of Transmittal (or a manually signed
facsimile  thereof) is received by the  Depositary  at one of its  addresses set
forth on the back cover of this Offer to Purchase prior to the Expiration Date.

     The  method  of  delivery  of  certificates  for  Shares,   the  Letter  of
Transmittal  and any other required  documents is at the option and sole risk of
the  tendering  Stockholder  and delivery will be deemed made only when actually
received by the Depositary. If

                                               10

<PAGE>



delivery  is made by  mail,  registered  mail  with  return  receipt  requested,
properly  insured,  is  recommended.  In all cases,  sufficient  time  should be
allowed to ensure timely delivery.

         Notwithstanding any other provision of this Offer to Purchase,  payment
for Shares accepted for payment  pursuant to the Offer in all cases will be made
only after timely receipt by the Depositary of  certificates  for (or Book-Entry
Confirmation with respect to) the Shares, a Letter of Transmittal (or a manually
signed  facsimile  thereof),  properly  completed  and  duly  executed  with all
required signature  guarantees and all other documents required by the Letter of
Transmittal (or, in the case of a book-entry transfer, an Agent's Message).

         Backup Federal Income Tax Withholding. To prevent United States federal
income tax backup  withholding  equal to 31% of the gross payments made pursuant
to the Offer,  each tendering  Stockholder must provide the Depositary with such
Stockholder's   correct  taxpayer   identification   number  and  certain  other
information  by properly  completing  the  substitute  Form W-9  included in the
Letter of Transmittal.  Foreign  Stockholders  must submit a properly  completed
Form W-8 (which may be obtained from the  Depositary) in order to prevent backup
withholding. In general, backup withholding does not apply to corporations or to
foreign  Stockholders subject to 30% (or lower treaty rate) withholding on gross
payments  received  pursuant to the Offer.  For a discussion of certain  federal
income  tax  consequences  to  tendering  Stockholders,   see  Section  5.  Each
Stockholder  is urged to consult with his or her own tax advisor  regarding his,
her or its qualification for exemption from backup withholding and the procedure
for obtaining any applicable exemption. See Instructions 12 and 13 of the Letter
of Transmittal.

         Guaranteed Delivery. If a stockholder desires to tender Shares pursuant
to the  Offer  and the  stockholder's  Share  certificates  are not  immediately
available or cannot be delivered to the Depositary  prior to the Expiration Date
(or the procedure for book-entry transfer cannot be completed on a timely basis)
or if time will not permit all required  documents to reach the Depositary prior
to the Expiration Date, the Shares may  nevertheless be tendered,  provided that
all of the following conditions are satisfied:

         (a)      the tender is made by or through an Eligible Institution;

         (b) the Depositary receives by hand, mail, overnight courier,  telegram
or  facsimile  transmission,  on or prior to the  Expiration  Date,  a  properly
completed and duly executed Notice of Guaranteed  Delivery  substantially in the
form the Company has  provided  with this Offer to  Purchase,  including  (where
required) a signature guarantee by an Eligible Institution in the form set forth
in such Notice of Guaranteed Delivery; and

         (c) the  certificates  for all  tendered  Shares,  in  proper  form for
transfer  (or  confirmation  of  book-entry  transfer  of such  Shares  into the
Depositary's  account at the  Book-Entry  Transfer  Facility),  together  with a
properly completed and duly executed Letter of Transmittal (or a manually signed
facsimile  thereof) and any required  signature  guarantees  or other  documents
required by the Letter of  Transmittal,  are received by the  Depositary  within
three  Nasdaq  trading days after the date of receipt by the  Depositary  of the
Notice of Guaranteed Delivery.

         Company Stock Option Plans. The Company is not offering, as part of the
Offer, to purchase any options ("Options") outstanding under the Company's stock
option plans (the  "Option  Plans") and tenders of Options will not be accepted.
Holders of Options  who wish to  participate  in the Offer must  exercise  their
Options and purchase  Shares of the  Company's  Common Stock and then tender the
Shares pursuant to the Offer, provided that any exercise of an Option and tender
of Shares is in  accordance  with the terms of the Option Plans and the Options.
In no event are any Options to be delivered to the Depositary in connection with
a tender of Shares hereunder. An exercise of an Option cannot be revoked even if
Shares received upon the exercise and tendered in the Offer are not purchased in
the Offer for any reason.

         Determination  of Validity.  All  questions as to the form of documents
and the validity,  eligibility  (including  time of receipt) and  acceptance for
payment  of any tender of Shares  pursuant  to any of the  procedures  described
above  will  be  determined  by  the  Company  in  its  sole  discretion,  which
determination  shall be final and binding on all parties.  The Company  reserves
the absolute right to reject any or all tenders of Shares determined not to

                                               11

<PAGE>


be in proper form or the  acceptance of or payment for which may, in the opinion
of counsel,  be unlawful and reserves the absolute  right to waive any defect or
irregularity  in any tender of Shares.  The Company  also  reserves the absolute
right to waive or amend any or all of the conditions of the Offer. The Company's
interpretation  of the terms and conditions of the Offer  (including the Letters
of Transmittal  and the  instructions  thereto) will be final and binding on all
parties.  No tender of Shares will be deemed to have been validly made until all
defects and irregularities have been cured or waived.  None of the Company,  the
Information  Agent  or  any  other  person  will  be  under  any  duty  to  give
notification of any defects or  irregularities in tenders or incur any liability
for failure to give any such notification.

         Appointment as Proxy. By executing a Letter of Transmittal, a tendering
Stockholder   irrevocably   appoints   designees   of   the   Company   as   his
attorneys-in-fact  and proxies,  with full power of substitution,  in the manner
set forth in the Letter of Transmittal,  to the full extent of the Stockholder's
rights with respect to the Shares  tendered by the  Stockholder and purchased by
the Company  and with  respect to any and all other  Shares or other  securities
issued or  issuable  in  respect  of those  Shares,  on or after the date of the
Offer.  All such powers of attorney and proxies will be considered  coupled with
an interest in the tendered Shares. Such appointment will be effective when, and
only to the extent  that,  the  Company  accepts  the Shares for  payment.  Upon
acceptance  for payment,  all prior powers of attorney and proxies  given by the
Stockholder with respect to the Shares (and any other Shares or other securities
so issued in respect of such purchased Shares) will be revoked,  without further
action,  and no subsequent  powers of attorney and proxies may be given (and, if
given,  will not be deemed  effective) by the Stockholder.  The designees of the
Company  will be  empowered  to  exercise  all  voting  and other  rights of the
Stockholder  with respect to such Shares (and any other Shares or  securities so
issued in respect of such purchased Shares) as they in their sole discretion may
deem proper, including,  without limitation, in respect of any annual or special
meeting of the  Stockholders,  or any  adjournment or  postponement  of any such
meeting.

         Rule 14e-4 Under the  Exchange  Act.  It is a  violation  of Rule 14e-4
promulgated under the Exchange Act, for a person to tender Shares for his or her
own account  unless the person so tendering (i) has a net long position equal to
or  greater  than the  amount of (x)  Shares  tendered  or (y) other  securities
immediately  convertible  into,  exercisable or  exchangeable  for the amount of
Shares tendered and will acquire such Shares for tender by conversion,  exercise
or  exchange  of such other  securities  and (ii) will  cause such  Shares to be
delivered  in  accordance  with the terms of the Offer.  Rule  14e-4  provides a
similar  restriction  applicable to the tender on behalf of another person.  The
tender of Shares  pursuant  to any one of the  procedures  described  above will
constitute  the tendering  Stockholder's  representations  and warranty that (i)
such Stockholder has a net long position in the Shares being tendered within the
meaning of Rule 14e-4 promulgated under the Exchange Act, and (ii) the tender of
such Shares  complies with Rule 14e-4.  The Company's  acceptance for payment of
Shares  tendered  pursuant  to the Offer  will  constitute  a binding  agreement
between  the  tendering  Stockholder  and the  Company  based upon the terms and
subject to the conditions of the Offer. See the covenants,  representations  and
warranties  made by a  tendering  Stockholder  to the  Company  in the Letter of
Transmittal.

         The Company  reserves the absolute  right to require that, in order for
Shares to be validly  tendered,  immediately  upon the Company's  acceptance for
payment of the  Shares,  the Company  must be able to  exercise  full voting and
other  rights  with  respect to the Shares,  including  voting at any meeting of
Stockholders then scheduled.

3.                Acceptance for Payment and Payment for Shares

         Upon the terms and subject to the  conditions of the Offer  (including,
if the Offer is  extended  or  amended,  the terms  and  conditions  of any such
extension  or  amendment),  the Company  will accept for  payment  (and  thereby
purchase)  and pay  for  Shares  that  are  validly  tendered  and not  properly
withdrawn on or prior to the Expiration  Date, as soon as practicable  after the
later  of the  following  dates:  (i) the  Expiration  Date and (ii) the date of
satisfaction  or  waiver  of all the  conditions  to the Offer set forth in this
Offer  to  Purchase.  Subject  to the  applicable  rules of the  Securities  and
Exchange Commission ("Commission"),  the Company expressly reserves the right to
delay  acceptance for payment of, or payment for, Shares in order to comply,  in
whole or in part,  with any  other  applicable  law,  government  regulation  or
condition contained therein. See Sections 13 and 14.


                                              12
<PAGE>


         In all cases,  payment for Shares purchased  pursuant to the Offer will
be made only after timely receipt by the Depositary of (i)  certificates for the
Shares  (or a timely  Book-Entry  Confirmation,  as  defined  in Section 2, with
respect to the Shares),  (ii) the  appropriate  Letter(s) of  Transmittal  (or a
manually signed facsimile  thereof),  properly  completed and duly executed with
all required  signature  guarantees or an Agent's  Message (as defined below) in
connection with a book-entry transfer, and (iii) all other documents required by
the Letter of Transmittal. See Section 2.

         The term "Agent's Message" means a message, transmitted by a Book-Entry
Transfer  Facility (as defined in Section 2) to and  received by the  Depositary
and  forming  part of a  Book-Entry  Confirmation,  which  states  that (i) such
Book-Entry  Transfer  Facility has received an express  acknowledgment  from the
participant in such Book-Entry  Transfer Facility  tendering the Shares that are
the subject of such Book-Entry Confirmation,  (ii) such participant has received
and agrees to be bound by the terms of the applicable Letter of Transmittal, and
(iii) the Company may enforce such agreement against such participant.

         For purposes of the Offer,  the Company will be deemed to have accepted
for payment (and thereby purchased) tendered Shares as, if, and when the Company
gives oral or written  notice to the  Depositary of the Company's  acceptance of
such Shares for payment. In all cases,  payment for Shares purchased pursuant to
the Offer  will be made by deposit of the  purchase  price with the  Depositary,
which  will act as agent  for the  tendering  Stockholders  for the  purpose  of
receiving  payment from the Company and  transmitting  payment to the  tendering
Stockholders  whose  Shares shall have been  accepted  for payment.  If, for any
reason,  acceptance for payment of any Shares tendered  pursuant to the Offer is
delayed, or the Company is unable to accept for payment Shares tendered pursuant
to the Offer,  then, without prejudice to the Company's rights under Section 13,
the Depositary may, nevertheless,  on behalf of the Company, retain the tendered
Shares,  and such  Shares may not be  withdrawn,  except to the extent  that the
tendering Stockholders are entitled to withdrawal rights as described in Section
4 and as otherwise  required by Rule 14e-1(c)  under the Exchange Act.  Under no
circumstances  will  interest  accrue  on the  consideration  to be paid for the
Shares by the Company, regardless of any delay in making such payment.

         If  any  tendered  Shares  are  not  purchased  for  any  reason  or if
certificates  are submitted for more Shares than are tendered,  certificates for
the  Shares  not  purchased  or  tendered  will  be  returned  pursuant  to  the
instructions  of the  tendering  Stockholder  without  expense to the  tendering
Stockholder (or, in the case of Shares delivered by book-entry transfer into the
Depositary's   account  at  a  Book-Entry  Transfer  Facility  pursuant  to  the
procedures  set forth in Section 2, the Shares  will be  credited  to an account
maintained  at the  appropriate  Book-Entry  Transfer  Facility)  as promptly as
practicable following the expiration, termination or withdrawal of the Offer.

4.                Withdrawal Rights

         Tenders of Shares made pursuant to the Offer are irrevocable, except as
otherwise  provided in this Section 4. Shares tendered pursuant to the Offer may
be withdrawn at any time prior to the Expiration  Date and,  unless  theretofore
accepted for payment by the Company as provided in this Offer to  Purchase,  may
also be  withdrawn  at any time after  Monday,  April 19,  1999.  If the Company
extends the Offer,  is delayed in its  purchase of or payment for Shares,  or is
unable to purchase or pay for Shares for any reason then,  without  prejudice to
the rights of the Company,  tendered Shares may be retained by the Depositary on
behalf  of the  Company  and may not be  withdrawn,  except to the  extent  that
tendering  Stockholders  are entitled to withdrawal  rights as set forth in this
Section 4.

         The  reservation by the Company of the right to delay the acceptance or
purchase of or payment for Shares is subject to the  provisions of Rule 14e-1(c)
under the Exchange  Act,  which  requires  the Company to pay the  consideration
offered or to return Shares  deposited by or on behalf of Stockholders  promptly
after the termination or withdrawal of the Offer.

         For a withdrawal to be effective,  a written,  telegraphic or facsimile
transmission  notice of withdrawal  must be timely received by the Depositary at
one of its addresses set forth on the back cover of this Offer to Purchase.  Any
such notice of withdrawal  must specify the name of the persons who tendered the
Shares to be withdrawn, the number of Shares to be withdrawn and the name of the
registered holder, if different from that of the person who tendered the Shares.
If certificates evidencing Shares have been delivered or

                                               13

<PAGE>



otherwise  identified  to the  Depositary  then,  prior  to the  release  of the
certificates,  the  tendering  Stockholder  must also submit the serial  numbers
shown on the particular certificates evidencing the Shares to be withdrawn,  and
the  signature on the notice of  withdrawal  must be  guaranteed  by an Eligible
Institution  (except  in the  case of  Shares  tendered  for the  account  of an
Eligible  Institution).  If Shares have been tendered  pursuant to the procedure
for  book-entry  transfer set forth in Section 2, the notice of withdrawal  must
specify the name and number of the account at the applicable Book-Entry Transfer
Facility to be credited with the withdrawn Shares.  All questions as to the form
and  validity  (including  time of  receipt)  of notices of  withdrawal  will be
determined by the Company, in its sole discretion,  which determination shall be
final and binding on all parties. No withdrawal of Shares will be deemed to have
been made  properly  until all  defects  and  irregularities  have been cured or
waived. None of the Company, the Depositary,  the Information Agent or any other
person  will  be  under  any  duty  to  give  notification  of  any  defects  or
irregularities in any notice of withdrawal or incur any liability for failing to
give such notification.

         Any Shares properly  withdrawn will be deemed not validly  tendered for
purposes of the Offer,  but may be tendered at any subsequent  time prior to the
Expiration Date by following any of the procedures described in Section 2 above.

5.                Certain Federal Income Tax Consequences of the Offer

         General.  The following is a discussion  of the material  United States
federal income tax consequences to Stockholders with respect to a sale of Shares
pursuant  to the  Offer.  The  discussion  is based upon the  provisions  of the
Internal  Revenue Code of 1986, as amended (the "Code"),  Treasury  regulations,
Internal Revenue Service ("IRS") rulings and judicial  decisions,  all in effect
as of the date  hereof  and all of which are  subject to change  (possibly  with
retroactive  effect)  by  subsequent  legislative,  judicial  or  administrative
action.  The  discussion  does not address all aspects of United States  federal
income taxation that may be relevant to a particular Stockholder in light of the
Stockholder's particular circumstances or to certain types of holders subject to
special  treatment  under the  United  States  federal  income tax laws (such as
certain  financial  institutions,   tax-exempt  organizations,   life  insurance
companies,  dealers in  securities  or  currencies,  employee  benefit  plans or
Stockholders holding the Shares as part of a conversion transaction,  as part of
a  hedge  or  hedging  transaction,  or as a  position  in a  straddle  for  tax
purposes). In addition, the discussion below does not consider the effect of any
foreign,  state,  local or other tax laws that may be  applicable  to particular
Stockholders.  The  discussion  assumes  that the  Shares  are held as  "capital
assets"  within the meaning of Section 1221 of the Code. The Company has neither
requested  nor  obtained a written  opinion of counsel or a ruling  from the IRS
with respect to the tax matters discussed below.

         EACH  STOCKHOLDER  SHOULD  CONSULT HIS OR HER OWN TAX ADVISOR AS TO THE
PARTICULAR  UNITED STATES FEDERAL INCOME TAX  CONSEQUENCES  TO THAT  STOCKHOLDER
TENDERING SHARES PURSUANT TO THE OFFER AND THE  APPLICABILITY  AND EFFECT OF ANY
STATE,  LOCAL OR FOREIGN TAX LAWS AND RECENT  CHANGES IN APPLICABLE TAX LAWS AND
ANY PROPOSED LEGISLATION.

         Characterization  of the Surrender of Shares Pursuant to the Offer. The
surrender of Shares by a Stockholder  to the Company  pursuant to the Offer will
be a taxable  transaction  for United States federal income tax purposes and may
also be a taxable  transaction  under  applicable  state,  local and foreign tax
laws.  The United States federal income tax  consequences  to a Stockholder  may
vary depending upon the Stockholder's particular facts and circumstances.  Under
Section 302 of the Code, the surrender of Shares by a Stockholder to the Company
pursuant to the Offer will be treated as a "sale or exchange" of such Shares for
United States federal income tax purposes  (rather than as a distribution by the
Company with  respect to the Shares held by the  tendering  Stockholder)  if the
receipt of cash upon  surrender  (i) is  "substantially  disproportionate"  with
respect to the  Stockholder,  (ii)  results in a  "complete  redemption"  of the
Stockholder's  interest in the Company, or (iii) is "not essentially  equivalent
to a dividend" with respect to the Stockholder (each as described below).

         If any of the above three tests is satisfied,  and the surrender of the
Shares is  therefore  treated as a "sale or  exchange" of such Shares for United
States federal  income tax purposes,  the tendering  Stockholder  will recognize
gain or loss equal to the difference between the

                                               14

<PAGE>



amount of cash received by the  Stockholder and the  Stockholder's  tax basis in
the Shares  surrendered  pursuant  to the  Offer.  Any such gain or loss will be
capital  gain or loss,  and will be long term capital gain or loss if the Shares
have been held for more than one year.

         If  none  of  the  above  three  tests  is  satisfied,   the  tendering
Stockholder  will be treated as having  received a  distribution  by the Company
with respect to the Stockholder's Shares in an amount equal to the cash received
by the Stockholder  pursuant to the Offer. The distribution will be treated as a
dividend  taxable as ordinary  income to the extent of the Company's  current or
accumulated   earnings  and  profits  for  tax  purposes.   The  amount  of  the
distribution  in excess of the  Company's  current or  accumulated  earnings and
profits  will be  treated  as a return  of the  Stockholder's  tax  basis in the
Shares,  and then as gain from the sale or exchange of the Shares. The tendering
Stockholder's  basis in the Shares  surrendered  pursuant to the Offer generally
will be added to the Stockholder's basis in his or her remaining Shares, if any.

         Constructive  Ownership.  In determining whether any of the three tests
under Section 302 of the Code is satisfied,  Stockholders must take into account
not only the Shares that are actually owned by the Stockholder,  but also Shares
that are  constructively  owned by the Stockholder within the meaning of Section
318 of the Code. Under Section 318 of the Code, a Stockholder may constructively
own Shares actually owned,  and in some cases  constructively  owned, by certain
related individuals or entities and Shares that the Stockholder has the right to
acquire by exercise of an option or by conversion.

         Proration.  Contemporaneous dispositions or acquisitions of Shares by a
Stockholder  or related  individuals  or entities  may be deemed to be part of a
single  integrated  transaction  and may be taken into  account  in  determining
whether any of the three tests under Section 302 of the Code has been satisfied.
Each Stockholder  should be aware that because proration may occur in the Offer,
even if all the Shares  actually and  constructively  owned by a Stockholder are
tendered pursuant to the Offer,  fewer than all of these Shares may be purchased
by  the  Company.  Thus,  proration  may  affect  whether  the  surrender  by  a
Stockholder pursuant to the Offer will meet any of the three tests under Section
302 of the Code.

         Section  302  Tests.  The  receipt  of  cash by a  Stockholder  will be
"substantially  disproportionate" if the percentage of the outstanding Shares in
the Company  actually and  constructively  owned by the Stockholder  immediately
following the surrender of Shares  pursuant to the Offer is less than 80% of the
percentage of the outstanding  Shares actually and  constructively  owned by the
Stockholder  immediately  before  the  sale of  Shares  pursuant  to the  Offer.
Stockholders  should consult their tax advisors with respect to the  application
of the "substantially disproportionate" test to their particular situation.

         The receipt of cash by a Stockholder will be a "complete redemption" if
either (i) the  Stockholder  owns no Shares in the  Company  either  actually or
constructively  immediately  after the Shares are  surrendered  pursuant  to the
Offer,  or  (ii)  the  Stockholder  actually  owns  no  Shares  in  the  Company
immediately  after the  surrender  of Shares  pursuant  to the Offer  and,  with
respect to Shares constructively owned by the Stockholder  immediately after the
Offer,   the  Stockholder  is  eligible  to  waive  (and   effectively   waives)
constructive  ownership of all such Shares under procedures described in Section
302(c) of the Code.

         Even if the  receipt  of cash by a  Stockholder  fails to  satisfy  the
"substantially  disproportionate"  test or the  "complete  redemption"  test,  a
Stockholder  may  nevertheless  satisfy  the "not  essentially  equivalent  to a
dividend" test if the  Stockholder's  surrender of Shares  pursuant to the Offer
results  in a  "meaningful  reduction"  in  the  Stockholder's  interest  in the
Company.  Whether the receipt of cash by a Stockholder  will be "not essentially
equivalent to a dividend"  will depend upon the individual  Stockholder's  facts
and circumstances.  The IRS has indicated in published rulings that even a small
reduction in the  proportionate  interest of a small  minority  Stockholder in a
publicly held  corporation  who exercises no control over corporate  affairs may
constitute such a "meaningful  reduction."  Stockholders  expecting to rely upon
the "not essentially equivalent to a dividend" test should consult their own tax
advisors as to its application in their particular situation.

         Under  certain  circumstances,  it  may  be  possible  for a  tendering
Stockholder to satisfy one of the Section 302 tests by contemporaneously selling
or  otherwise  disposing  of all or some of the Shares of the  Company  that are
actually or constructively owned by the

                                               15

<PAGE>



Stockholder but that are not purchased pursuant to the Offer. Correspondingly, a
Stockholder  may not be able to satisfy any of the Section 302 tests  because of
contemporaneous acquisitions of Shares of the Company by the Stockholder or by a
related  party  whose  stock  is   constructively   owned  by  the  Stockholder.
Stockholders  should consult their tax advisors  regarding the  consequences  of
such sales or acquisitions in their particular circumstances.

         Corporate  Stockholder  Dividend  Treatment.  If a sale of  Shares by a
corporate Stockholder is treated as a dividend, the corporate Stockholder may be
entitled to claim a deduction  equal to 70% of the dividend under Section 243 of
the Code,  subject to applicable  limitations.  Corporate  Stockholders  should,
however,  consider the effect of Section 246(c) of the Code, which disallows the
70% dividends-received  deduction with respect to stock that is held for 45 days
or less. For this purpose,  the length of time a taxpayer is deemed to have held
stock may be reduced by periods  during which the  taxpayer's  risk of loss with
respect to the stock is diminished by reason of the existence of certain options
or other transactions.  Moreover, under Section 246A of the Code, if a corporate
Stockholder has incurred  indebtedness directly attributable to an investment in
Shares, the 70% dividends-received deduction may be reduced.

         In addition,  amounts received by a corporate  Stockholder  pursuant to
the Offer that are  treated  as a  dividend  may  constitute  an  "extraordinary
dividend" under Section 1059 of the Code. Generally, an "extraordinary dividend"
is a dividend that (i) equals or exceeds 10% of the  Stockholder's  basis in the
Shares (treating all dividends having  ex-dividend dates within an 85-day period
as a single dividend) or (ii) exceeds 20% of the Stockholder's adjusted basis in
the Shares  (treating all dividends  having  ex-dividend  dates within a 365-day
period  as  a  single  dividend).   Accordingly,   if  applicable,  a  corporate
Stockholder  would be required  under Section  1059(a) of the Code to reduce its
basis  (but not  below  zero) in its  Shares  by the  non-taxed  portion  of the
dividend  (i.e.,  the portion of the dividend for which a deduction is allowed),
and if such portion exceeds the Stockholder's tax basis for its Shares, to treat
the  excess as gain from the sale of such  Shares in the year in which a sale or
disposition of the Shares occurs (which,  in certain  circumstances,  may be the
year in which Shares are sold pursuant to the Offer).

         Additional  Tax  Considerations.   The  distinction  between  long-term
capital gains and ordinary income is relevant because,  in general,  individuals
currently  are subject to taxation at a reduced rate on their "net capital gain"
(i.e.,  the excess of net long-term  capital gains over net  short-term  capital
losses) for the year.

         Stockholders are urged to consult their own tax advisors  regarding any
possible  impact on their  obligation to make estimated tax payments as a result
of the  recognition of any capital gain (or the receipt of any ordinary  income)
caused by the surrender of any Shares to the Company pursuant to the Offer.

     Backup  Federal  Income  Tax   Withholding.   See  Sections  2  and  3  and
Instructions 12 and 13 of the Letter of Transmittal.

         THE TAX DISCUSSION SET FORTH ABOVE IS INCLUDED FOR GENERAL  INFORMATION
ONLY AND MAY NOT APPLY TO SHARES  ACQUIRED IN  CONNECTION  WITH THE  EXERCISE OF
STOCK OPTIONS OR PURSUANT TO OTHER  COMPENSATION  ARRANGEMENTS WITH THE COMPANY.
THE TAX  CONSEQUENCES  OF A SALE PURSUANT TO THE OFFER MAY VARY DEPENDING  UPON,
AMONG OTHER THINGS, THE PARTICULAR  CIRCUMSTANCES OF THE TENDERING  STOCKHOLDER.
SEE ALSO THE DISCUSSION IN SECTION 8 FOR OTHER  INFORMATION THAT MAY BE RELEVANT
IN  DETERMINING  THE  TAX  CONSEQUENCES  OF A SALE  PURSUANT  TO THE  OFFER.  NO
INFORMATION  IS  PROVIDED  HEREIN  REGARDING  THE STATE,  LOCAL OR  FOREIGN  TAX
CONSEQUENCES OF THE  TRANSACTION  CONTEMPLATED  BY THE OFFER.  STOCKHOLDERS  ARE
URGED TO CONSULT  THEIR OWN TAX ADVISORS TO DETERMINE  THE  PARTICULAR  FEDERAL,
STATE,  LOCAL AND FOREIGN TAX  CONSEQUENCES TO THEM OF TENDERING SHARES PURSUANT
TO THE OFFER AND THE EFFECT OF THE STOCK OWNERSHIP  ATTRIBUTION  RULES DESCRIBED
ABOVE.


                                               16

<PAGE>

6.                Price Range of the Shares; Dividends on the Shares

         The  principal  trading  market for the Company is the Nasdaq  National
Market  ("NNM"),  and the Shares  trade on the NNM under the symbol  "VBAC." The
Company has not paid regular cash dividends on the Shares.  The following  table
sets forth,  for the periods  indicated,  the high and low sale prices per Share
reported by the NNM Composite Reporting System.

<TABLE>
<CAPTION>

                                                                                                 High           Low
<S>                                                                                            <C>             <C>
1997:
  First Quarter.........................................................................          $1.63          $1.13
  Second Quarter........................................................................           1.75           1.13
  Third Quarter.........................................................................           1.38           1.06
  Fourth Quarter........................................................................           1.69           1.13

1998:
  First Quarter.........................................................................          $1.50          $1.06
  Second Quarter........................................................................           1.44           1.13
  Third Quarter.........................................................................           1.31           1.00
  Fourth Quarter........................................................................           1.50           0.81

1999:
  First Quarter ........................................................................          $1.38          $1.00
  Period February 1, 1999 through March 17, 1999........................................           1.56           1.12
</TABLE>


         On March 17, 1999, the last full trading day before the commencement of
the  Offer,  the last  reported  sale  price on the NNM was  $1.563  per  Share.
Stockholders are urged to obtain current market quotations for the Shares.

7.                Effect of the Offer on the Market for Shares

         The purchase of Shares  pursuant to the Offer will reduce the number of
Shares that might  otherwise trade  publicly,  which could adversely  affect the
liquidity and market value of the remaining  Shares held by  Stockholders  other
than the Company. The Company cannot predict whether the reduction in the number
of  Shares  that  might  otherwise  trade  publicly  would  have an  adverse  or
beneficial  effect on the market price for, or  marketability  of, the Shares or
whether such  reduction  would cause future  market prices to be greater or less
than the Purchase Price. Based upon published guidelines of the NNM, the Company
believes  that  following  its  purchase of Shares  pursuant  to the Offer,  the
Company's remaining Shares will continue to qualify to be quoted on the NNM.

8.                Background and Purpose of the Offer

         On March 5, 1999, the Merger of Virbac into AGNU was consummated. Under
the  Merger  Agreement,  the  Company  agreed  that,  within  60 days  after the
effective  date of the  Merger,  it would make and  complete  a tender  offer to
repurchase up to 1,000,000 shares of its issued and outstanding  Common Stock at
a price of $3.00 per share. The Offer is being made by the Company in compliance
with this covenant.  Following the Offer the repurchased  Shares will be held in
treasury and Interlab  will own 60% of the Company's  outstanding  Common Stock.
VBSA AND INTERLAB AGREED, PURSUANT TO THE TERMS OF THE MERGER AGREEMENT,  NOT TO
TENDER THE VBSA SHARES IN THE OFFER.

         At the  Company's  Annual  Meeting  on March  1,  1999,  the  Company's
Stockholders  approved the Merger  Agreement  and  amendments  to the  Company's
Certificate of Incorporation  which,  among other things,  changed the Company's
name from  Agri-Nutrition  Group Limited to Virbac Corporation and increased its
authorized shares of Common Stock from 20,000,000 to 38,000,000 shares.

9.                Certain Information Concerning AGNU and Virbac

         The  Company is the  surviving  entity  after the Merger of Virbac into
AGNU. Set forth below is certain  information  about the businesses of both AGNU
and Virbac prior to the Merger.

                                               17

<PAGE>



         AGNU, a  manufacturer  and  distributer  of animal  health and pet care
products,  was organized as a Delaware  corporation in 1993. In September  1993,
AGNU,  through its  subsidiary  PM  Resources,  acquired  the Health  Industries
Business of Purina Mills,  Inc., which formulates,  manufactures and distributes
animal health products and, to a lesser extent,  home, lawn and garden and other
products.  In July 1994,  AGNU  completed an initial  public  offering,  the net
proceeds of which were  approximately  $12.1 million.  Effective March 31, 1995,
AGNU  purchased  substantially  all of the  net  assets  and  business  of  Zema
Corporation  , a  formulator,  manufacturer  and  supplier  of  health  care and
grooming products to the pet industry. Effective August 31, 1995, AGNU purchased
substantially all of the net assets and business of St. JON Laboratories,  Inc.,
a developer,  manufacturer  and  marketer of oral  hygiene,  dermatological  and
gastrointestinal  products for dogs and cats. In September  1997, AGNU purchased
substantially  all of the net assets and business of Mardel  Laboratories,  Inc.
("Mardel").  Mardel is a  developer,  manufacturer  and marketer of high quality
care  products to the pet industry with  expertise  extending to fresh water and
marine fish, birds, dogs, cats, small animals and pond accessories.

         AGNU  historically  reported  certain  financial  information  for  two
segments  ingredients  and  specialty  products.  Ingredients  consisted of feed
products  that were  purchased  or blended by AGNU and  distributed  for Purina.
Specialty  products consist of all other products  formulated,  manufactured and
distributed  by AGNU to various  customers,  including  Purina.  Included in the
specialty  products  segment are sales of private label and branded products for
which AGNU manufactures goods using registrations and/or formulas owned by AGNU,
and sales of products  manufactured  under contract for which AGNU  manufactures
products using the customers' registrations and/or formulas.

         Given the  acquisitions of businesses  with branded,  consumer-targeted
products and the continued  emphasis on growth of the specialty product segment,
the  significance  of the  ingredients  segment had decreased in fiscal 1996 and
1997.  Management  expected this trend to continue in the future.  In June 1997,
AGNU  discontinued the distribution of ingredients to Purina. In July 1997, AGNU
distributed  all of  its  remaining  ingredients  inventories  and  discontinued
operations  in  its  ingredients  segment.  This  segment  is  accounted  for as
discontinued  operations in accordance with Accounting  Principles Board Opinion
No. 30,  "Reporting the Results of Operations."  Accordingly,  AGNU has reported
the  ingredients  segment  as  discontinued   operations  and  the  consolidated
financial  statements have been  reclassified to report separately the financial
position and operating  results of the segment.  AGNU's  consolidated  operating
results for the year ended October 31, 1997 have been restated to reflect AGNU's
continuing operations related to its specialty products business.  There were no
activities from discontinued operations in fiscal year 1998.

         On March 5, 1999, AGNU merged with Virbac,  which was incorporated as a
Delaware  corporation on February 10, 1984. In 1987, Virbac purchased Allerderm,
Inc. ("Allerderm"), which, at the time, was the world's leading U.S. marketer of
veterinary  dermatological  products. In 1989, Virbac purchased Carson Chemicals
in New Castle,  Indiana,  a  manufacturer  of  pesticide  products  for use with
companion  animals.  In  1989,  Virbac  formed  Francodex   Laboratories,   Inc.
("Francodex"),  a wholly owned subsidiary,  to produce over-the-counter grooming
aids and stain and odor removers. Francodex began marketing products in 1991. In
January  1994,  Virbac  acquired A & I  Laboratories  in Arlington,  Texas,  the
manufacturing  company  from  which  Virbac  previously  purchased  most  of its
dermatologic products. In 1995, in order to combine its manufacturing, marketing
and warehousing operations, Virbac completed construction of a manufacturing and
laboratory facility,  adding 58,000 square-feet to its 60,000 square-foot office
and  warehouse  facility  in  Fort  Worth,  Texas.  Virbac  then  relocated  its
dermatologic products manufacturing from Arlington to the Fort Worth facility.

         Virbac is one of the leading  manufacturers of dermatological  products
for companion  animals.  Virbac's  Allerderm(R)  line of products  treats a wide
range  of   dermatological   problems,   including  itching  and  skin  and  ear
infections--the primary reasons for consulting a veterinarian.  The Allerderm(R)
line of products is  specially  adapted for the  characteristics  of dog and cat
skin and consists of approximately 30 products.

     Summary  Historical  and Unaudited Pro Forma Combined  Financial  Data. Set
forth below are summary  historical and unaudited pro forma  combined  financial
data and

                                               18

<PAGE>



unaudited comparative per share data of AGNU and Virbac excerpted from the Proxy
Statement  filed with the Commission in connection  with the Company's  March 1,
1999 Annual Meeting of Stockholders  ("Proxy  Statement").  Such Proxy Statement
and other  documents are available for  inspection  and copies are obtainable in
the manner set forth below under "Additional Available Information." The summary
historical  financial data and unaudited  historical  comparative per share data
are  based  upon the  respective  historical  financial  statements  of AGNU and
Virbac, including the notes thereto, included in the Proxy Statement, and should
be read in  conjunction  therewith.  The summary  unaudited  pro forma  combined
financial  data and the  unaudited  pro forma  comparative  per  share  data are
presented for illustrative  purposes only and are not necessarily  indicative of
the financial  position or results of  operations  that would have been reported
had the  Merger  been in effect  during  the  periods  presented  or that may be
reported in the future.  The summary unaudited pro forma combined financial data
should be read in conjunction  with the unaudited pro forma  combined  financial
data, including the notes thereto, appearing in the Proxy Statement.




                                               19

<PAGE>



                                  Agri-Nutrition Group Limited
                                     Summary Financial Data

<TABLE>
<CAPTION>

                                                                               Year Ended October 31
                                                            -----------------------------------------------------------
                                                                   1996                1997                1998
                                                            -------------------  ------------------   -----------------
<S>                                                           <C>                 <C>                 <C>
Statement of Operations:
Net Sales..................................................    $28,661,307         $ 31,051,537        $  32,944,020
Operating income (loss) from continuing
     operations............................................         47,399              978,481              (42,894)
Income (loss) from continuing operations...................       (241,320)             118,671             (662,832)
Income from discontinued operations........................        113,900               14,659                 -

Net income (loss)..........................................       (127,420)             133,330             (662,832)
Basic earnings (loss) per share:
     Continuing operations.................................          (0.03)                0.01                 (.07)
     Discontinued operations...............................           0.01                  -                   -
     Net income............................................          (0.02)                0.01                 (.07)
Diluted earnings (loss) per share:
     Continuing operations.................................          (0.03)                0.01                 (.07)
     Discontinued operations...............................           0.01                  -                   -
     Net income............................................          (0.02)                0.01                 (.07)
Weighted average number of shares outstanding:
     Basic.................................................      8,397,686            8,483,897            9,309,184
     Diluted...............................................      8,397,686            8,699,914            9,309,184
</TABLE>

<TABLE>
<CAPTION>

                                                                                                        October 31,
                                                                                                           1998
                                                                                                       --------------
<S>                                                                                                    <C>
Balance Sheet Data:
     Cash..........................................................................................    $       97,971
     Working capital...............................................................................         9,263,115
     Total assets..................................................................................        28,042,588
     Current portion of long-term debt.............................................................         1,209,912
     Long-term debt................................................................................         9,114,226
     Stockholders' equity..........................................................................        14,884,813
</TABLE>




                                               20

<PAGE>



                                          Virbac, Inc.
                                     Summary Financial Data

<TABLE>
<CAPTION>

                                                                                 Year Ended December 31
                                                            ---------------------------------------------------------
                                                                   1996                1997                1998
                                                            -------------------   ---------------   -----------------
<S>                                                            <C>                 <C>                <C>
Statement of Operations:
Net revenues...............................................    $17,493,683         $16,235,284         $15,051,090

Loss from operations.......................................       (889,354)           (730,820)         (1,238,523)

Net loss...................................................     (1,387,248)         (1,255,207)         (1,821,386)

Net loss per common and common 
      equivalent share.....................................           (.17)               (.15)               (.22)

Weighted average number of common and       
     common equivalent shares outstanding..................      8,386,445           8,399,810           8,399,810
</TABLE>

<TABLE>
<CAPTION>

                                                                                                       December 31,
                                                                                                           1998
                                                                                                       -------------
<S>                                                                                                   <C>
Balance Sheet Data:
     Cash..........................................................................................   $     412,378
     Working capital...............................................................................        (854,656)
     Total assets..................................................................................      12,680,651
     Current portion of long-term debt/advance                    
          from Parent..............................................................................       5,200,000
     Long-term debt (less current maturities)......................................................       4,000,000
     Stockholders' equity..........................................................................       1,890,700
</TABLE>




                                               21

<PAGE>



                          Agri-Nutrition Group Limited and Virbac, Inc.
                       Summary Unaudited Pro Forma Combined Financial Data

<TABLE>
<CAPTION>

                                                                                                     Year Ended
                                                                                                    December 31,
                                                                                                        1998
                                                                                                    -------------
<S>                                                                                                <C>
Statement of Operations:
     Net Sales..................................................................................   $    47,995,110
     Operating loss.............................................................................        (1,197,295)
     Loss from continuing operations............................................................        (1,687,928)

Loss from continuing operations per share:
     Basic......................................................................................              (.08)
     Diluted ...................................................................................              (.08)

Weighted average shares outstanding:
     Basic......................................................................................        20,890,103
     Diluted....................................................................................        20,890,103

                                                                                                    December 31,
                                                                                                        1998
                                                                                                    --------------
Balance Sheet Data:
     Cash.......................................................................................   $        97,971
     Working capital............................................................................        11,742,564
     Total assets...............................................................................        38,078,013
     Current portion of long-term debt..........................................................         1,209,912
     Long-term debt.............................................................................         5,414,226
     Stockholders' equity.......................................................................        26,236,287
</TABLE>


                              Unaudited Comparative Per Share Data

<TABLE>
<CAPTION>

                                                                                                            Virbac
                                                                                          AGNU            Equivalent
                                                                                        Pro Forma          Pro Forma
                                                    AGNU              Virbac            Combined           Combined
                                                  ---------        ----------          -----------      -------------
<S>                                               <C>              <C>                 <C>              <C>
Diluted loss per share:
     Year ended December 31, 1998...........      $(.07)(1)         $(0.22)            $(0.08)            $(0.12)(2)
Dividends per share.........................         -                  -                  -                  -
Book value per share as of:
     December 31, 1998......................       1.59 (1)            .23               1.19               1.79 (2)
</TABLE>

- -------------------  
(1)  Amounts are as of and for the fiscal year ended October 31, 1998.
(2)  Amounts  reflect  AGNU Pro Forma  Combined  amounts  multiplied  by the 1.5
     exchange ratio.



                                               22

<PAGE>


                                  Agri-Nutrition Group Limited
                               Ratio of Earnings to Fixed Charges

<TABLE>
<CAPTION>

                                                                                                      Pro Forma
                                                                                                      Year Ended
                                                                Fiscal Year Ended October 31,        December 31,
                                                                   1997                1998            1998 (1)
                                                                ---------         ------------      -------------
<S>                                                             <C>               <C>               <C>
Pre-Tax Income (Loss) From
Continuing Operations                                           $ 192,999         $ (1,077,775)     $  (1,687,928)
                                                                ---------         ------------      -------------

Fixed Charges:
- ---------------------------------------------------------
Interest Expense                                                  638,599              787,727            473,227
Operating Rentals (2)                                             134,000              146,000            159,000
                                                                ---------         ------------      -------------
Fixed Charges                                                     772,599              933,727            632,227
                                                                ---------         ------------      -------------

Earnings Adjusted for Fixed Charges                             $ 965,598         $   (144,048)     $  (1,055,701)
                                                                =========         ============      =============

Ratio of Earnings to Fixed Charges                                   1.25                (3)                (4)
</TABLE>


(1)  Amounts are pro forma for the effects of the Merger,  the Cash Infusion and
     the Offer as described in the Agri-Nutrition Proxy Statement.

(2)  Amounts are based on one-third of rentals under operating leases.

(3)  As a result of the loss incurred in the fiscal year ended October 31, 1998,
     the Company was unable to fully cover the indicated fixed charges. Earnings
     did not cover fixed charges by $1,077,775 in fiscal year 1998.

(4)  As a result of the pro forma loss  incurred in the year ended  December 31,
     1998,  the Company was unable to fully cover the indicated  fixed  charges.
     Pro forma earnings did not cover fixed charges by $1,687,928 in 1998.


                                               23

<PAGE>




               Post-Merger Unaudited Pro Forma Financial Data

         The  following  unaudited  pro forma  financial  information  should be
evaluated in  conjunction  with the  historical  financial  statements and other
information regarding the Company contained in the Proxy Statement.  In light of
the  foregoing  factors,  holders of Shares are  cautioned not to place undue or
significant reliance thereon.

         The following  Unaudited Pro Forma Condensed Combined Balance sheet has
been prepared based on the  historical  balance sheets of AGNU as of October 31,
1998 and Virbac as of December 31,  1998,  as adjusted to reflect the effects of
the Merger, the Cash Infusion and the Offer (the "Pro Forma Transactions") as if
they had  occurred  on December  31,  1998.  The  Unaudited  Pro Forma  Combined
Statement of Operations has been prepared  based on the  historical  fiscal 1998
statements of  operations of AGNU and Virbac,  adjusted to reflect the Pro Forma
Transactions as if they had occurred on January 1, 1998. For purposes of the pro
formas, the Pro Forma Transactions were assumed to consist of the following: (i)
immediately  prior to the Merger,  Virbac receives a $15.7 million Cash Infusion
from VBSA;  (ii) AGNU  acquires  100% of Virbac's  common  stock in exchange for
12,580,919  newly issued  shares of the Company's  Common  Stock;  and (iii) the
Company uses $3.0 million of the Cash Infusion in order to effect the Offer. The
remainder of the Cash Infusion will be used to pay approximately $0.2 million of
Virbac's expenses related to the Merger,  to reduce Virbac's  pre-Merger debt to
not more than the amount of  pre-Merger  cash on Virbac's  balance  sheet and to
provide  approximately  $3.7 million for working capital  requirements.  Because
VBSA received 60% of the voting equity of the Company,  Virbac is considered the
acquiror  for  financial  statement  purposes.  Accordingly,  the Merger will be
accounted for as a reverse  purchase of the Company by Virbac using the purchase
method.  The Pro Forma Transactions are described in further detail in the Proxy
Statement.

         If during the period  ending on the second  anniversary  of the Merger,
the closing sale price of the  Company's  Common Stock has not reached $3.00 per
share for 40 consecutive  trading days, the Company will conduct a second tender
offer,  the Contingent  Tender Offer,  by publicly  offering to repurchase up to
1,395,000 of the  Company's  outstanding  Common  Stock at $3.00 per share.  The
repurchase of shares will be accounted for as a purchase of treasury shares. The
Contingent  Tender  Offer will be funded  through  VBSA's  purchase of 1,395,000
newly issued  shares at $3.00 per share.  The purchase of shares by VBSA will be
accounted for by the Company as the issuance of  additional  shares at $3.00 per
share.  The  Company's  results of  operations,  net cash flows,  and  financial
position/stockholders'  equity  will not be affected  by the  Contingent  Tender
Offer and the  issuance  of new  shares  to VBSA,  as the two  transactions  are
dependent on and offset each other.

         The Unaudited Pro Forma Condensed  Combined Balance Sheet and Statement
of Operations do not purport to represent (i) the actual  financial  position or
results of  operations,  had the Pro Forma  Transactions  occurred  on the dates
assumed,  or (ii) the financial position or results of operations to be expected
in the  future.  They do not  reflect  any  estimate  of cost  savings  or other
efficiencies  that may be  achieved  from the  integration  of AGNU and  Virbac.
Management  believes  that the  assumptions  used in preparing the Unaudited Pro
Forma  Condensed  Combined  Balance Sheet and Statement of Operations  provide a
reasonable basis for presenting all of the significant  effects of the Pro Forma
Transactions,  that the pro forma  adjustments give appropriate  effect to those
assumptions,  and that the pro forma  adjustments  are  properly  applied in the
Unaudited  Pro  Forma  Combined   Condensed   Balance  Sheet  and  Statement  of
Operations.

         The Unaudited Pro Forma Condensed  Combined Balance Sheet and Statement
of Operations and the accompanying  notes should be read in conjunction with the
historical financial statements of AGNU and Virbac, including the notes thereto,
and the other financial information pertaining to AGNU and Virbac, including the
information   set  forth  under   "Selected   Financial  Data  of  AGNU,"  "AGNU
Management's  Discussion  and  Analysis of  Financial  Condition  and Results of
Operations,"  "Selected  Financial  Data of  Virbac"  and  "Virbac  Management's
Discussion  and  Analysis of  Financial  Condition  and Results of  Operations,"
included in the Proxy Statement.

                                               24

<PAGE>



        Unaudited Pro Forma Condensed Combined Balance Sheet Data
<TABLE>
<CAPTION>

                                                                           Virbac
                                                       AGNU             December 31,         Pro Forma            Pro Forma
                                                 October 31, 1998           1998            Adjustments            Combined
                                                 ----------------     --------------   ---------------------    -------------
<S>                                              <C>                    <C>              <C>              <C>   <C>
Assets
Cash..........................................    $      97,971         $   412,378       $ 15,693,622    (a)   $      97,971
                                                                                           (12,900,000)   (a)
                                                                                            (3,000,000)   (e)
                                                                                              (206,000)   (a)
Accounts receivable, net......................        4,812,842           1,321,573                                 6,134,415
Inventories...................................        7,150,042           3,355,504                                10,505,546
Prepaid expenses..............................        1,245,809             845,840           (659,517)   (b)       1,432,132
                                                  -------------         -----------       ------------          -------------
                                                     13,306,664           5,935,295         (1,071,895)            18,170,064

Property, plant and equipment, net............        5,520,798           4,904,520          4,300,000    (b)      14,725,318
Goodwill/intangible...........................        8,745,753           1,804,885         (7,930,705)   (b)       4,677,307
                                                                                             2,057,374    (b)
Other assets..................................          469,373              35,951                                   505,324
                                                  -------------         -----------       ------------          -------------
                                                  $  28,042,588         $12,680,651       $ (2,645,226)         $  38,078,013
                                                  =============         ===========       ============          =============

Liabilities
Current portion of long-term debt.............    $   1,209,912         $ 3,200,000       $ (3,200,000)   (a)   $   1,209,912
Note payable to Virbac S.A....................                            2,000,000         (2,000,000)   (a)
Accounts payable..............................        1,562,652             766,211          1,000,000    (d)       3,122,863
                                                                                              (206,000)   (a)
Accrued expenses..............................        1,270,985             823,740                                 2,094,725
                                                  -------------         -----------       ------------          -------------
                                                      4,043,549           6,789,951         (4,406,000)             6,427,500

Long-term debt and notes payable..............        9,114,226           4,000,000         (3,700,000)   (a)       5,414,226
                                                                                            (4,000,000)   (a)
Stockholders' equity
Common stock..................................           93,873           8,399,810         (8,399,810)   (c)         219,682
                                                                                               127,109    (d)
                                                                                                (1,300)   (f)
Additional paid-in capital....................       16,025,620              10,452         15,693,622    (a)      35,536,167
                                                                                           (16,025,620)   (b)
                                                                                            11,606,990    (d)
                                                                                             8,399,810    (c)
                                                                                              (174,707)   (f)
Accumulated earnings (deficit)................       (1,058,673)         (6,519,562)         1,058,673    (b)      (6,519,562)

Cost of common stock in treasury..............         (176,007)                 --         (3,000,000)   (e)      (3,000,000)
                                                                                               176,007    (f)
                                                  -------------         -----------       ------------          -------------
                                                  $  28,042,588         $12,680,651       $ (2,645,226)         $  38,078,013
                                                  =============         ===========       ============          =============
</TABLE>



                                                                 25

<PAGE>



(a)  Adjustments to reflect the Cash Infusion and the application  thereof. On a
     pro forma basis,  the Cash Infusion at December 31, 1998 would have totaled
     $15,693,622.  Of this amount,  $3,000,000  would have been used to fund the
     Offer (see Note (e) below),  $206,400 would have been used to pay a portion
     of Virbac's transaction expenses,  and the remainder of $12,487,622,  along
     with  Virbac's  cash on hand of  $412,378,  would  have  been used to repay
     Virbac's debt plus accrued interest. Accordingly, the debt to be repaid for
     pro forma balance sheet purposes totals $12,900,000. Debt instruments to be
     repaid include the following:
<TABLE>
<CAPTION>

<S>                                                                               <C>
      Virbac:
      Note payable/Revolving credit with financial institution.................   $   7,200,000
      Notes payable to Virbac S.A.............................................        2,000,000

      AGNU:
      Revolving credit facility  ...........................................          3,700,000
                                                                                  -------------
                                                                                  $  12,900,000
</TABLE>

(b)  Adjustments to eliminate AGNU's stockholders' equity,  eliminate historical
     pre-merger  AGNU  goodwill and reflect the  estimated  fair value of AGNU's
     assets and liabilities. AGNU's property, plant and equipment is expected to
     be adjusted to fair value,  which  exceeds  book value by  $4,300,000.  The
     write-up is  attributable  solely to land and buildings.  The fair value of
     land and  buildings  was  determined  on the  basis of  recent  appraisals.
     Management  believes that the fair value of AGNU's  machinery and equipment
     approximates  pre-Merger  historical  net  book  value.  Accordingly,   the
     pre-Merger  historical  net book value of machinery  and  equipment has not
     been adjusted in the unaudited pro forma financial information.  Management
     is evaluating  whether to obtain  appraisals to determine the fair value of
     AGNU's  machinery and equipment as of the effective  time of the Merger and
     any write-up or write-down will be included in purchase accounting (i.e. an
     adjustment of goodwill).  Estimated useful lives are 30 years for buildings
     and  8-12  years  for  machinery  and  equipment.   Estimated  goodwill  of
     $2,057,374  from the Merger will be amortized over its expected useful life
     of 20 years. Historical, pre-Merger deferred tax assets of AGNU of $659,517
     have also been eliminated (See Note (d) to the Unaudited Pro Forma Combined
     Statement of Operations--1998). The allocation of fair value is preliminary
     and may change upon the completion of the final valuation of the net assets
     acquired.

(c)  Pursuant to the Merger  Agreement,  AGNU issued 12,580,919 shares of Common
     Stock to Interlab and canceled its existing  treasury stock. At October 31,
     1998 there were  9,387,279  shares of Common  Stock  outstanding,  of which
     129,961 were held in treasury. Therefore, for purposes of the unaudited pro
     forma  combined   balance  sheet,   21,968,198   shares  of  AGNU  will  be
     outstanding.  Since the par value of the shares is one cent per share,  the
     pro forma Common Stock par value is $219,682.  The $8,399,810 of historical
     par value of Virbac stock is reclassified as additional paid-in capital.

(d)  Because the Merger will be accounted for as a reverse  acquisition  and the
     stockholder  of Virbac,  which is treated as the  acquiror  for  accounting
     purposes,  is receiving  the VBSA  Shares,  the fair market value of AGNU's
     Common Stock  outstanding for a reasonable  period of time before and after
     the announcement of the Merger determines the purchase price for accounting
     purposes. For purposes of the pro forma financial statements,  the purchase
     price for AGNU consists of the following:

     Fair market value of AGNU Common Stock (9,387,279 shares
        at $1.25 per share).........................................$ 11,734,099
     Direct costs of the acquisition................................  1,000,000
                                                                    ------------
     Total purchase price...........................................$ 12,734,099
                                                                    ============

         The estimated fair market value of AGNU Common Stock of $1.25 per share
         was estimated  based on the trading  range of AGNU's Common Stock.  The
         number of shares of AGNU Common  Stock  outstanding  to which the price
         per share is applied is based on AGNU Common Stock outstanding prior to
         the  issuance  of Shares  to  Virbac  under  the  Merger  Agreement  as
         described in Note (c) above.

(e)  Adjustments to reflect the Offer for Shares at $3.00 per share.

(f)  Adjustments to reflect the  cancellation  of stock held in treasury by AGNU
     pursuant to the Merger.



                                                        26

<PAGE>


           Unaudited Pro Forma Combined Statement of Operations - 1998
<TABLE>
<CAPTION>

                                               AGNU             Virbac
                                             For the           For the
                                           year ended        year ended
                                           October 31,      December 31,        Pro forma        Pro forma
                                              1998              1998           Adjustments        Combined
                                           -----------       ------------    -----------------   ------------
<S>                                        <C>               <C>             <C>                 <C>
Net sales................................. $32,944,020       $ 15,051,090    $      --           $ 47,995,110
 
Cost of sales.............................  24,008,395          5,564,757           --             29,573,152
                                           -----------       ------------    -----------------   ------------

Gross profit..............................   8,935,625          9,486,333           --             18,421,958
                                                                                (171,122)  (b)
Operating expenses........................   8,978,519         10,724,856         87,000   (a)     19,619,253
                                           -----------       ------------    -----------------   ------------

Operating income (loss)...................     (42,894)        (1,238,523)        84,122           (1,197,295)

Interest expense..........................     787,727            582,611       (897,111)  (c)        473,227

Other income (expenses)...................    (247,154)              (252)       230,000   (e)        (17,406)
                                           -----------       ------------    -----------------   ------------

Income (loss) before taxes................  (1,077,775)        (1,821,386)     1,211,233           (1,687,928)

Income tax expense (benefit)..............    (414,943)             --           414,943   (d)            --
                                           -----------       ------------    -----------------   ------------

Income (loss) from continuing
   operations............................. $  (662,832)      $ (1,821,386)    $  796,290         $ (1,687,928)
                                           ===========       ============    =================   ============

Loss from continuing
   operations per share
   - Basic                                 $      (.07)              (.22)                       $       (.08)
   - Diluted                                      (.07)              (.22)                               (.08)

Basic shares outstanding..................   9,309,184          8,399,810                          20,890,103(f)
Diluted shares outstanding................   9,309,184          8,399,810                          20,890,103(f)
</TABLE>

(a)  Operating expense has been adjusted to reflect the increase in depreciation
     related to the write-up of property,  plant and equipment.  The write-up is
     primarily  attributable  to land  (write-up of  $1,700,000)  and  buildings
     (write-up of  $2,600,000).  Land is not  depreciated  while  buildings  are
     depreciated over a 30-year life.

(b)  The  decrease  in the  amortization  of  goodwill  is  attributable  to the
     reduction  in  goodwill  as a  result  of the  Merger.  Goodwill  is  being
     amortized over 20 years, or $102,869 of  amortization  expense per year for
     goodwill  resulting  from the Merger.  Amortization  expense  reflected  in
     AGNU's pre-Merger fiscal 1998 operations was $273,991; as a result, the pro
     forma adjustment is a $171,122 reduction in goodwill amortization.

(c)  Reductions in interest  expense  reflect the application of net proceeds of
     the Cash Infusion to repay  outstanding  debt. The Cash Infusion would have
     been  $14,871,953  had the Merger  occurred  on  January  1, 1998.  Of this
     amount,  $3,000,000 would have been used to fund the Offer,  $206,400 would
     have been used to pay a portion of Virbac's transaction  expenses,  and the
     remainder  of  $11,665,953,  along with  Virbac's  cash on hand of $84,047,
     would have been used to repay  Virbac's debt.  Accordingly,  the debt to be
     repaid  for  purposes  of the pro forma  statement  of  operations  totaled
     $11,750,000.  Debt  instruments  to be repaid with the proceeds of the Cash
     Infusion include the following:


                                                        27

<PAGE>

                                                               Interest Expense
                                                                  Reduction
                                                                 Year Ended
                                         Debt to be Repaid     December 31, 1998
                                         -----------------     -----------------
Virbac:
  Eliminate interest expense
     recorded by Virbac.............       $   8,050,000           $ 582,611

AGNU:
  Revolving credit facility
     (8.5% interest rate............           3,700,000             314,500
                                           -------------           ---------
                                           $  11,750,000           $ 897,111
                                           =============           =========


(d)      Income tax expense (benefit) recorded by AGNU has been eliminated as on
         a pro forma basis surviving  corporation would have recorded a net loss
         in both  periods  presented.  For purposes of the  unaudited  pro forma
         combined statement of operations presented,  a full valuation allowance
         is recorded  relative  to the pro forma  combined  deferred  income tax
         benefits, given the companies' historical results of operations.

(e)      Expenses of approximately  $230,000  relative to the Merger and charged
         to AGNU's fiscal 1998 results of operations  have been  eliminated as a
         pro forma adjustment to loss from continuing operations.

(f)      Common  shares  outstanding  on a  pro  forma  basis  represent  AGNU's
         weighted average shares outstanding for 1998 plus the 12,580,919 shares
         issued to Virbac minus the 1,000,000  shares  repurchased in the Offer.
         As required by Statement of Financial Accounting Standards No. 128, the
         impact of  outstanding  stock options and the  additional  shares to be
         issued to Virbac in the event these  options are exercised has not been
         included in the  determination  of per share  amounts as such an impact
         would be anti-dilutive and reduce the net loss per share.

         Additional  Available  Information.  The  Company  is  subject  to  the
informational  filing  requirements  of the Exchange Act. In accordance with the
Exchange Act, the Company files  periodic  reports,  proxy  statements and other
information with the Commission  relating to its business,  financial  condition
and other matters.  The Company is required to disclose in such proxy statements
certain information,  as of particular dates, concerning the Company's directors
and officers,  their remuneration,  stock options granted to them, the principal
holders of the Company's  securities and any material  interest of those persons
in  transactions  with the Company.  Such reports,  proxy  statements  and other
information  may be inspected at the  Commission's  office at 450 Fifth  Street,
N.W.,  Washington,  D.C. 20549,  and also should be available for inspection and
copying at the regional  offices of the Commission  located at Citicorp  Center,
500 West Madison Street, Suite 1400, Chicago,  Illinois 60661; and 7 World Trade
Center,  Suite  1300,  New York,  New York 10048.  Copies may be  obtained  upon
payment of the  Commission's  prescribed fees by writing to its principal office
at 450 Fifth Street, N.W.,  Washington,  D.C. 20549, or through the Commission's
Website (http://www.sec.gov).

         Stockholders  who  desire  to  receive  additional  copies of the Proxy
Statement may call Leslie Sisk, Administrative Assistant to the President of the
Company,  at (800)  338-3659  or write  or call the  Information  Agent at their
address  and  telephone  number  set  forth on the back  cover of this  Offer to
Purchase.

10.               Source and Amount of Funds

         The  aggregate  amount  of funds  required  by the  Company  to pay the
aggregate  purchase price to be paid pursuant to the Offer is $3,000,000.  These
funds were provided to the Company as part of the Cash Infusion made by Interlab
to Virbac prior to the Merger.

11.               Interests of Directors and Officers; Transactions and
                  Arrangements Concerning Shares

         On February 8, 1999, in conjunction with the Merger Agreement, VBSA and
persons then holding  approximately 32% of AGNU's  outstanding Common Stock (the
"Principal   Stockholders")   entered  into  a   stockholders'   agreement  (the
"Stockholders' Agreement"), pursuant to which, among other things, the Principal
Stockholders agreed, subject to certain limitations,  (i) to vote all the shares
of Common  Stock held by them for  approval of the Merger and (ii) if fewer than
1,000,000  Shares are tendered by  Stockholders  in the Offer,  to tender Shares
equal  to the  difference  between  1,000,000  Shares  and the  amount  actually
tendered.

     The Principal  Stockholders  include W.M. Jones, Jr., Robert W. Schlutz and
Robert E. Horman, former directors of AGNU; Durvet/PMR,  L.P.; Bruce G. Baker, a
Vice President and director of the Company; Robert J. Elfanbaum,  Vice President
and  Chief  Financial  Officer  of the  Company;  and Alec L.  Poitevint,  II, a
director of the Company.

     Based upon the  Company's  records  and upon  information  provided  to the
Company by its directors,

                                                        28

<PAGE>



executive officers, associates and subsidiaries, neither the Company nor, to the
best of the  Company's  knowledge,  any  associates or  subsidiaries  or persons
controlling the Company,  any directors or executive  officers of the Company or
any of  its  subsidiaries,  or  any  associates  or  subsidiaries  of any of the
foregoing,  has effected any  transactions in the Shares (other than the Merger)
during the 40 business days prior to the date hereof.

         Except for outstanding  options to purchase Shares granted from time to
time over recent years pursuant to the Option Plans or as otherwise set forth in
this Offer to Purchase,  neither the Company  nor, to the best of the  Company's
knowledge,  any  person  controlling  the  Company  or any of its  directors  or
executive officers,  is a party to any contract,  arrangement,  understanding or
relationship  (other than the  Stockholders'  Agreement)  with any other  person
relating, directly or indirectly, to the Offer with respect to any securities of
the  Company  (including,  but  not  limited  to,  any  contract,   arrangement,
understanding or relationship  concerning the transfer or the voting of any such
securities,  joint  ventures,  loan  or  option  arrangements,  puts  or  calls,
guarantees of loans,  guarantees  against loss or the giving or  withholding  of
proxies, consents or authorizations).

12.               Extension of Tender Period; Termination; Amendments

         The Company expressly reserves the right, in its sole discretion and at
any time or from time to time,  to extend  the period of time  during  which the
Offer  is open by  giving  oral  or  written  notice  of such  extension  to the
Depositary and making a public announcement thereof.  There can be no assurance,
however,  that the Company will  exercise its right to extend the Offer.  During
any such extension,  all Shares  previously  tendered will remain subject to the
Offer,  except to the extent that such Shares may be  withdrawn  as set forth in
Section  4.  The  Company  also  expressly  reserves  the  right,  in  its  sole
discretion, (i) to terminate the Offer and not accept for payment any Shares not
previously  accepted  for  payment  or,  subject to Rule  13e-4(f)(5)  under the
Exchange Act, which requires the Company either to pay the consideration offered
or to return the Shares tendered promptly after the termination or withdrawal of
the Offer,  to postpone  payment for Shares  upon the  occurrence  of any of the
conditions  specified in Section 13 hereof,  by giving oral or written notice of
such termination to the Depositary and making a public announcement  thereof and
(ii) at any  time,  or from time to time,  to amend  the  Offer in any  respect.
Amendments to the Offer may be effected by public announcement. Without limiting
the manner in which the Company may choose to make  public  announcement  of any
extension,  termination  or  amendment,  the  Company  shall have no  obligation
(except as  otherwise  required  by  applicable  law) to publish,  advertise  or
otherwise  communicate  any such  public  announcement,  other  than by making a
release to the Dow Jones News Service,  except in the case of an announcement of
an extension of the Offer, in which case the Company shall have no obligation to
publish,  advertise or otherwise  communicate  such  announcement  other than by
issuing  a  notice  of  such   extension  by  press   release  or  other  public
announcement,  which  notice  shall be issued no later than 9:00 a.m.,  New York
City time, on the next business day after the  previously  scheduled  Expiration
Date.  Material  changes to  information  previously  provided to holders of the
Shares  in this  Offer or in  documents  furnished  subsequent  thereto  will be
disseminated  to  holders  of  Shares  in  compliance   with  Rule   13e-4(e)(2)
promulgated by the Commission under the Exchange Act.

         If the  Company  materially  changes  the  terms  of the  Offer  or the
information  concerning the Offer,  or if it waives a material  condition of the
Offer,  the  Company  will  extend  the Offer to the  extent  required  by Rules
13e-4(d)(2) and 13e-4(e)(2) under the Exchange Act. Those rules require that the
minimum period during which an offer must remain open following material changes
in the terms of the offer or  information  concerning  the offer  (other  than a
change in price,  change in dealer's  soliciting  fee or change in percentage of
securities  sought) will depend on the facts and  circumstances,  including  the
relative  materiality of such terms or information.  In a published release, the
Commission  has  stated  that in its view,  an offer  should  remain  open for a
minimum  of five  business  days  from the date that  notice of such a  material
change is first published, sent or given. The Offer will continue or be extended
for at least ten  business  days from the time the Company  publishes,  sends or
gives notice to Stockholders that it will increase or decrease the percentage of
the common stock to be purchased  pursuant to the Offer, the consideration  paid
for the purchased  shares, or the amount of the Information  Agent's  soliciting
fee.

13.               Certain Conditions of the Offer
   

         Notwithstanding  any other provision of the Offer, the Company will not
be  required  to accept  for  payment or pay for any  Shares  tendered,  and may
terminate or amend and may postpone (subject to the requirements of the Exchange
Act for prompt  payment for or return of Shares  tendered)  the  acceptance  for
payment of Shares tendered, if at any time after March 18, 1999 and at or before
the Expiration Date any of the following shall have occurred:
    

                                                        29

<PAGE>


   
              (a) there shall have been  threatened,  instituted  or pending any
         action or proceeding by any government or  governmental,  regulatory or
         administrative  agency or  authority  or tribunal or any other  person,
         domestic or foreign, or before any court, authority, agency or tribunal
         that (i) challenges the  acquisition of Shares pursuant to the Offer or
         otherwise in any manner  relates to or affects the Offer or (ii) in the
         reasonable  judgment of the Company,  could  materially  and  adversely
         affect the business, condition (financial or other), income, operations
         or prospects of the Company and its subsidiaries,  taken as a whole, or
         otherwise  materially impair in any way the contemplated future conduct
         of the business of the Company or any of its subsidiaries or materially
         impair the Offer's contemplated benefits to the Company;
    

   
              (b) there shall have been any action threatened, pending or taken,
         or approval withheld, or any statute, rule, regulation, judgment, order
         or  injunction  threatened,  proposed,  sought,  promulgated,  enacted,
         entered,  amended,  enforced or deemed to be applicable to the Offer or
         the Company or any of its subsidiaries, by any legislative body, court,
         authority,  agency  or  tribunal  which,  in the  Company's  reasonable
         judgment, would or might directly or indirectly (i) make the acceptance
         for payment of, or payment  for,  some or all of the Shares  illegal or
         otherwise restrict or prohibit consummation of the Offer, or (ii) delay
         or restrict the ability of the Company,  or render the Company  unable,
         to accept for payment or pay for some or all of the Shares;
    

   
              (c) there  shall  have  occurred  (i) any  general  suspension  of
         trading in, or  limitation  on prices for,  securities  on any national
         securities  exchange  or  in  the  over-the-counter  market,  (ii)  the
         declaration  of a banking  moratorium or any  suspension of payments in
         respect  of banks in the  United  States or any  limitation  on, or any
         event which,  in the Company's  reasonable  judgment,  might affect the
         extension of credit by lending institutions in the United States, (iii)
         the commencement of a war, armed hostilities or other  international or
         national calamity  directly or indirectly  involving the United States,
         other than armed  hostilities  in the Persian  Gulf or in the  Balkans,
         which the Company will not assert,  and hereby expressly  waives,  as a
         condition to its obligation to accept for payment or pay for any Shares
         tendered,  or (iv) in the case of any of the foregoing  existing at the
         time of the  commencement  of the Offer,  in the  Company's  reasonable
         judgment, a material acceleration or worsening thereof.
    

         The  foregoing  conditions  are for the sole benefit of the Company and
may be asserted by the Company  regardless of the  circumstances  (including any
action or inaction by the Company) giving rise to any of these  conditions,  and
any such  condition  may be waived by the Company,  in whole or in part,  at any
time and from time to time in its sole discretion. The failure by the Company at
any time to exercise any of the foregoing rights shall not be deemed a waiver of
the right and each of these rights shall be deemed an ongoing right which may be
asserted  at any time and from time to time.  Any  determination  by the Company
concerning the events described above will be final and binding on all parties.

         The  Exchange  Act requires  that all  conditions  to the Offer must be
satisfied or waived before the Expiration Date.

14.               Certain Legal Matters

         The  Company is not aware of any  license  or  regulatory  permit  that
appears  to be  material  to the  Company's  business  that  might be  adversely
affected by the Company's acquisition of Shares as contemplated herein or of any
approval or other action by, or any filing with, any government or governmental,
administrative  or  regulatory  authority or agency,  domestic or foreign,  that
would be required for the  acquisition  or ownership of Shares by the Company as
contemplated herein.  Should any such approval or other action be required,  the
Company  presently  contemplates  that such  approval  or other  action  will be
sought.  The Company is unable to predict  whether it may  determine  that it is
required to delay the acceptance  for payment of or payment for Shares  tendered
pursuant to the Offer  pending the outcome of any such  matter.  There can be no
assurance that any such approval or other action,  if needed,  would be obtained
or would be  obtained  without  substantial  conditions  or that the  failure to
obtain  any  such   approval  or  other  action  might  not  result  in  adverse
consequences  to the Company's  business.  The Company's  obligations  under the
Offer to accept for payment and pay for Shares is subject to certain conditions.
See Section 13.

15.               Fees and Expenses

         ChaseMellon  Shareholder Services,  L.L.C.  ("ChaseMellon") will act as
the  Information  Agent and  Depositary  for the Company in connection  with the
Offer.  ChaseMellon,  as Information  Agent,  may contact  stockholders by mail,
telephone,  facsimile,  telex,  telegraph,  other  electronic means and personal
interviews,  and may request brokers,  dealers and other nominee stockholders to
forward materials  relating to the Offer to beneficial  owners.  The Company has
agreed to pay $7,500 for such  services,  plus $3.50 per  incoming  phone  call.
ChaseMellon will be reimbursed for certain out-of-pocket  expenses and will also
be indemnified  against certain  liabilities,  including  liabilities  under the
federal securities laws, in connection with the Offer.


                                                        30

<PAGE>



         ChaseMellon  will also act as Depositary in connection  with the Offer.
The Depositary will receive $7,500,  plus reasonable and customary  compensation
for its services and will also be reimbursed for certain out-of-pocket expenses.
The  minimum  aggregate  payment  due to the  Depositary  for  performing  these
services is $15,000.  The Company has agreed to indemnify the Depositary against
certain liabilities,  including certain liabilities under the federal securities
laws,  in  connection  with the Offer.  Neither  the  Information  Agent nor the
Depositary  has  been  retained  to make  solicitations  or  recommendations  in
connection with the Offer.

         The Company will not pay any fees or commissions to any broker,  dealer
or other person for  soliciting  tenders of Shares  pursuant to the Offer (other
than  the  fee of the  Information  Agent).  The  Company  will,  upon  request,
reimburse brokers, dealers,  commercial banks and trust companies for reasonable
and  customary  handling  and mailing  expenses  incurred by them in  forwarding
materials relating to the Offer to their customers.

16.               Miscellaneous

         The Offer is not being made to (nor will tenders be accepted from or on
behalf of) Stockholders  residing in any jurisdiction in which the making of the
Offer or the acceptance  thereof would not be in compliance with the securities,
blue sky or other laws of the  jurisdiction.  However,  the Company  may, in its
discretion,  take such action as it may deem  necessary to make the Offer in any
jurisdiction and extend the Offer to Stockholders in that  jurisdiction.  In any
jurisdiction  where the securities,  blue sky or other laws require the Offer to
be made by a licensed  broker or dealer,  the Offer will be deemed to be made on
behalf of the  Company by one or more  registered  brokers  or dealers  that are
licensed under the laws of the jurisdiction.

         The Company has filed with the  Commission a Schedule 13E-4 pursuant to
Rule 13(e)(1) under the Exchange Act containing certain  additional  information
with  respect to the Offer.  The Schedule and any  amendments  to the  Schedule,
including  exhibits,  may be  examined  and  copies  may be  obtained  from  the
principal  office of the  Commission  in the manner set forth in Section 9 above
(except  that  they  will  not be  available  at  the  regional  offices  of the
Commission).

         No person has been  authorized to give any  information  or to make any
representation  on behalf of the Company not contained in this Offer to Purchase
or in the  Letter of  Transmittal  and,  if given or made,  the  information  or
representation must not be relied upon as having been authorized.


                                                     VIRBAC CORPORATION



March 18, 1999

                                                        31

<PAGE>



         Facsimile copies of the Letter of Transmittal,  properly  completed and
duly  signed,  will be accepted.  The Letter of  Transmittal,  certificates  for
Shares and any other  required  documents  should be sent or  delivered  by each
Stockholder of the Company or his broker, dealer, commercial bank, trust company
or other nominee to the Depositary, at one of the addresses set forth below:


                The Depositary for the Offer is:

            ChaseMellon Shareholder Services, L.L.C.


     By Hand Delivery:           By Overnight Delivery:            By Mail:
120 Broadway, 13th Floor           85 Challenger Road            P.O. Box 3301
New York, New York 10271             Mail Drop-Reorg          South Hackensack,
Attn:  Reorganization Dept.   Ridgefield Park, New Jersey        New Jersey
                                        07660                       07606
                              Attn:  Reorganization Dept.   Attn: Reorganization
                                                                      Dept.

                           Facsimile Transmission:
                               (201) 296-4293

                        Confirm Receipt of Facsimile
                                by Telephone:
                               (201) 296-4860


         Questions  and  requests  for   assistance   may  be  directed  to  the
Information  Agent at their  respective  addresses and telephone  numbers listed
below.  Additional  copies of this Offer to Purchase,  the Letter of Transmittal
and other tender offer materials may be obtained from the  Information  Agent as
set forth below and will be furnished promptly at the Company's expense. You may
also  contact your  broker,  dealer,  commercial  bank,  trust  company or other
nominee for assistance concerning the Offer.


                    The Information Agent for the Offer is:

                   ChaseMellon Shareholder Services, L.L.C.
                       450 West 33rd Street, 14th Floor
                           New York, New York  10001
                          Toll Free Telephone Number:
                                (877) 698-6865

                          Banks and Brokerage Firms,
                             Please Call Collect:
                                (212) 273-8083



                                                        32

<PAGE>



                                                                  Exhibit (a)(2)


                                  LETTER OF TRANSMITTAL
                            To Tender Shares of Common Stock
                                           of
                                   Virbac Corporation
                         (Formerly Agri-Nutrition Group Limited)
                            Pursuant to the Offer to Purchase
                                  Dated March 18, 1999

THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 5:00 P.M., NEW YORK CITY TIME,
ON MONDAY, APRIL 19, 1999, UNLESS THE OFFER IS EXTENDED

                           The Depositary for the Offer is:

                      ChaseMellon Shareholder Services, L.L.C.
<TABLE>
<CAPTION>
<S>                                    <C>                                       <C>
        By Hand Delivery:                      By Overnight Delivery:                         By Mail:
      120 Broadway, 13th Floor                 85 Challenger Road                         P.O. Box 3301
      New York, New York 10271                   Mail Drop--Reorg                  South Hackensack, New Jersey 07606
      Attn: Reorganization Dept.          Ridgefield Park, New Jersey 07660       Attn: Reorganization Dept.
                                             Attn: Reorganization Dept.
</TABLE>

                             Facsimile Transmission:
                                 (201) 296-4293

                   Confirm Receipt of Facsimile by Telephone:
                                 (201) 296-4860


                          DESCRIPTION OF SHARES TENDERED

              Name(s) and Address(es)
              of Registered Holder(s)                    
   (Please fill in, if blank, exactly as name(s)         
         appear(s) on the Certificate(s))

                  Certificates Enclosed          
      (Attach additional signed list, if necessary)      

                                                             Total Number
                   Share                of Shares              Number of
                 Certificate           Represented by             Shares
                  Number(s)*           Certificate(s)           Tendered**



     Total:
Indicate in this box the order (by certificate number) in which Shares are to be
purchased in event of proration.***  Attach additional signed list if necessary.
See Instruction 8.
1st:_______      2nd:_______      3rd:_______      4th:_______      5th:_______

*    DOES  NOT  need  to be  completed  by  Stockholders  delivering  Shares  by
     book-entry transfer through the Depositary.
**   Unless otherwise indicated,  it will be assumed that all Shares represented
     by  Certificates  delivered  to the  Depositary  are  being  tendered.  See
     Instruction 4.
***  If you do not  designate  an  order,  in the  event  less  than all  Shares
     tendered  are  purchased  due to  proration,  Shares will be  selected  for
     purchase by the  Depositary. 


<PAGE>


DELIVERY OF THIS  LETTER OF  TRANSMITTAL  TO AN ADDRESS  OTHER THAN AS SET FORTH
ABOVE OR TRANSMISSION OF INSTRUCTIONS WILL NOT CONSTITUTE A VALID DELIVERY.  YOU
MUST SIGN THIS LETTER OF TRANSMITTAL IN THE APPROPRIATE  SPACE THEREFOR PROVIDED
BELOW AND COMPLETE THE SUBSTITUTE FORM W-9 SET FORTH BELOW.

THE  INSTRUCTIONS  ACCOMPANYING  THIS  LETTER  OF  TRANSMITTAL  SHOULD  BE  READ
CAREFULLY BEFORE THIS LETTER OF TRANSMITTAL IS COMPLETED.

         This Letter of  Transmittal is to be completed by holders of Shares (as
defined below) of Virbac Corporation ("Stockholders") if certificates evidencing
Shares  ("Certificates") are to be forwarded with this Letter of Transmittal or,
unless an Agent's Message (as defined in the Offer to Purchase) is utilized,  if
delivery of Shares is to be made by  book-entry  ("B/E")  transfer to an account
maintained by ChaseMellon  Shareholder Services,  L.L.C. at The Depository Trust
Company (the  "Book-Entry  Transfer  Facility")  pursuant to the  procedures set
forth in Section 2 of the Offer to Purchase.

         Stockholders  whose  Certificates are not immediately  available or who
cannot deliver either their  Certificates for, or a Book-Entry  Confirmation (as
defined in Section 2 of the Offer to Purchase) with respect to, their Shares and
all other required  documents to the Depositary prior to the Expiration Date (as
defined in Section 1 of the Offer to Purchase) may tender their Shares according
to the  guaranteed  delivery  procedures  set forth in Section 2 of the Offer to
Purchase.  See  Instruction  2 hereof.  Delivery of documents to the  Book-Entry
Transfer Facility does not constitute delivery to the Depositary.

|_|    CHECK HERE IF TENDERED SHARES ARE BEING DELIVERED BY BOOK-ENTRY  TRANSFER
       MADE TO AN  ACCOUNT  MAINTAINED  BY THE  DEPOSITARY  WITH THE  BOOK-ENTRY
       TRANSFER  FACILITY,  AND COMPLETE THE FOLLOWING (ONLY PARTICIPANTS IN THE
       BOOK-ENTRY TRANSFER FACILITY MAY DELIVER SHARES BY BOOK-ENTRY TRANSFER).

       Name of Tendering Institution:          

       Account Number:                        

       Transaction Code Number:                     




|_|    CHECK HERE IF SHARES ARE BEING TENDERED PURSUANT TO A NOTICE OF
       GUARANTEED DELIVERY PREVIOUSLY SENT TO THE DEPOSITARY AND COMPLETE
       THE FOLLOWING. PLEASE ENCLOSE A PHOTOCOPY OF SUCH NOTICE OF
       GUARANTEED DELIVERY.

       Name(s) of Registered Stockholder(s):                

       Window Ticket Number (if any):                   

       Date of Execution of Notice of Guaranteed Delivery:          

       Name of Institution which Guaranteed Delivery:          

       Account Number:                                

       Transaction Code Number:                           

                     NOTE: SIGNATURES MUST BE PROVIDED BELOW.
                PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY.



<PAGE>





Ladies and Gentlemen:

       The  undersigned  hereby  tenders  to  Virbac  Corporation,   a  Delaware
corporation  (formerly  Agri-Nutrition  Group  Limited)  (the  "Company"),   the
above-described  shares of the Company's Common Stock, par value $0.01 per share
(the  "Shares"),  at a purchase  price of $3.00 per Share,  net to the seller in
cash,  without interest,  upon the terms and subject to the conditions set forth
in the Offer to  Purchase,  dated  March 18,  1999  (the  "Offer to  Purchase"),
receipt  of which is hereby  acknowledged,  and in this  Letter  of  Transmittal
(which,   together  with  any  amendments  or  supplements  hereto  or  thereto,
collectively constitute the "Offer").

       Subject  to, and  effective  upon,  acceptance  for payment of the Shares
tendered  hereby in accordance  with the terms and subject to the  conditions of
the  Offer  (including,  if the  Offer is  extended  or  amended,  the terms and
conditions  of such  extension or  amendment),  the  undersigned  hereby  sells,
assigns and transfers to, or upon the order of, the Company all right, title and
interest in and to all Shares tendered hereby and orders the registration of all
such  Shares  if  tendered  by  book-entry   transfer  and  hereby   irrevocably
constitutes  and  appoints  the  Depositary  as the true and  lawful  agent  and
attorney-in-fact  of the  undersigned  with respect to such (with full knowledge
that the Depositary  also acts as the agent of the Company) with respect to such
Shares,  with full power of substitution (such power of attorney being deemed to
be  an   irrevocable   power  coupled  with  an   interest),   to:  (a)  deliver
certificate(s)  representing such Shares or transfer ownership of such Shares on
the account books maintained by the Book-Entry Transfer Facility,  together,  in
either such case, with all accompanying  evidences of transfer and authenticity,
to or upon the order of the  Company  upon  receipt  by the  Depositary,  as the
undersigned's  agent,  of the Purchase  Price (as defined below) with respect to
such  Shares;  (b) present  certificates  for such Shares for  cancellation  and
transfer on the  Company's  books;  and (c) receive all benefits  and  otherwise
exercise all rights of beneficial ownership of such Shares,  subject to the next
paragraph, all in accordance with the terms and subject to the conditions of the
Offer.

       The undersigned hereby covenants,  represents and warrants to the Company
that:

       (a) the undersigned has full power and authority to tender,  sell, assign
and transfer the Shares tendered hereby and that when and to the extent the same
are  accepted  for  payment by the  Company,  the  Company  will  acquire  good,
marketable  and  unencumbered  title  thereto,  free and  clear of all  security
interests,  liens,  restrictions,   charges,  encumbrances,   conditional  sales
agreements or other obligations relating to the sale or transfer of such Shares,
and not subject to any adverse claims;

       (b) the  undersigned  understands  that tenders of Shares pursuant to any
one of the procedures  described in Section 2 of the Offer to Purchase  entitled
"Procedure for Tendering Shares" and in the instructions  hereto will constitute
the undersigned's acceptance of the terms and conditions of the Offer, including
the undersigned's representation and warranty that (i) the undersigned has a net
long  position  in the Shares or  equivalent  securities  at least  equal to the
Shares tendered  within the meaning of Rule 14e-4 under the Securities  Exchange
Act of 1934, as amended ("Rule 14e-4"),  and (ii) such tender of Shares complies
with Rule 14e-4;

       (c)  the  undersigned  will,  upon  request,   execute  and  deliver  any
additional  documents deemed by the Depositary or the Company to be necessary or
desirable to complete the sale,  assignment and transfer of the Shares  tendered
hereby; and

       (d) the undersigned has read,  understands and agrees to all of the terms
of the Offer.

       The undersigned understands that tenders of Shares pursuant to any one of
the  procedures  described  in  Section  2 of the  Offer  to  Purchase  entitled
"Procedure for Tendering Shares" and in the instructions  hereto will constitute
a binding  agreement  between the undersigned and the Company upon the terms and
subject to the conditions of the Offer.  The  undersigned  acknowledges  that no
interest will be paid on the Purchase  Price for tendered  Shares  regardless of
any extension of the Offer or any delay in making such payment.

       All authority  herein  conferred or agreed to be conferred  shall survive
the  death  or  incapacity  of  the  undersigned,  and  any  obligation  of  the
undersigned hereunder shall be binding upon the heirs, personal



<PAGE>



representatives,  executors,  administrators,  successors,  assigns, trustees in
bankruptcy and legal representatives of the undersigned. Except as stated in the
Offer to Purchase, this tender is irrevocable.

       The  name(s)  and  address(es)  of the  registered  holder(s)  should  be
printed,  if they are not already  printed above,  exactly as they appear on the
certificates  representing Shares tendered hereby. The certificate  numbers, the
number of Shares  represented by such certificates and the number of Shares that
the undersigned  wishes to tender,  should be set forth in the appropriate boxes
above.

       The  undersigned  understands  that the Company will,  upon the terms and
subject  to the  conditions  of the Offer,  pay $3.00 per Share  (the  "Purchase
Price") for Shares  properly  tendered and not properly  withdrawn  prior to the
Expiration Date pursuant to the Offer,  taking into account the number of Shares
so tendered. The undersigned understands that all Shares properly tendered prior
to the  Expiration  Date and not  properly  withdrawn  will be  purchased at the
Purchase  Price,  upon the terms and  subject  to the  conditions  of the Offer,
including its proration  provisions,  and that the Company will return all other
Shares not  purchased  pursuant  to the Offer,  including  Shares not  purchased
because of proration.

       The undersigned recognizes that, under certain circumstances set forth in
the Offer to  Purchase,  the  Company  may  terminate  or amend the Offer or may
postpone the acceptance for payment of, or the payment for,  Shares  tendered or
may accept for payment fewer than all of the Shares tendered hereby. In any such
event,  the  undersigned  understands  that  certificate(s)  for any  Shares not
tendered or not  purchased  will be returned to the  undersigned  at the address
indicated  above,  unless  otherwise  indicated under the box entitled  "Special
Payment Instructions" or the box entitled "Special Delivery Instructions" below.

       The undersigned  understands that acceptance of Shares by the Company for
payment will  constitute a binding  agreement  between the  undersigned  and the
Company upon the terms and subject to the conditions of the Offer.

       The check for the  aggregate  net  Purchase  Price for such of the Shares
tendered  hereby as are purchased will be issued to the order of the undersigned
and mailed to the address indicated above,  unless otherwise indicated under the
box  entitled  "Special  Payment  Instructions"  or the  box  entitled  "Special
Delivery Instructions" below. The undersigned  acknowledges that the Company has
no obligation,  pursuant to the "Special Payment  Instructions," to transfer any
Shares  from the  name of its  registered  holder(s)  thereof,  or to order  the
registration or transfer of any Shares tendered by book-entry  transfer,  if the
Company does not purchase any of such Shares.





<PAGE>




SPECIAL PAYMENT INSTRUCTIONS                      
(See Instructions 1, 5, 6 and 9)                  

To be completed ONLY if Certificates for Shares not tendered or not accepted for
payment and/or the check for the payment and the check for the Purchase Price of
shares  accepted for payment are to be issued in the name of someone  other than
the  undersigned,  or if Shares  delivered by  book-entry  transfer that are not
accepted  for payment are to be returned by credit to an account  maintained  at
the Book-Entry Transfer Facility other than the account indicated above.

Issue check and certificate(s) to:                                   

Name(s):                                         

                  (Please type or Print)                     

Address:


                    (Include Zip Code)


(Tax Identification or Social Security No.)
(Also complete Substitute Form W-9 on  the reverse
side of this form.)



SPECIAL DELIVERY INSTRUCTIONS             
(See Instructions 1, 5, 6 and 9)          

To be completed ONLY if Certificates for Shares not tendered or not accepted for
payment and/or the check for the purchase  price of Shares  accepted for payment
are to be sent to someone other than the undersigned or to the undersigned at an
address other than that shown above.

Mail check and certificate(s) to:

Name:
               (Please type or Print)


Address:
                    (Include Zip Code)

<PAGE>




                                             IMPORTANT:
                           STOCKHOLDER: SIGN HERE AND COMPLETE SUBSTITUTE
                              FORM W-9 ON THE REVERSE SIDE OF THIS FORM



                            Signature(s) of Stockholder(s)

Dated:                                                     , 1999

       (Must be signed by the registered  holder(s) exactly as name(s) appear(s)
on the Certificate or on a security position listing or by person(s)  authorized
to  become  registered  holder(s)  by  Certificates  and  documents  transmitted
herewith.  If signature is by trustees,  executors,  administrators,  guardians,
attorneys-in-fact,  agents,  officers  or  corporations  or  others  acting in a
fiduciary or representative capacity, please provide the following information.
See Instruction 5.)

Name:
                                                (Please type or Print)

Capacity (Full Title):

Address:


                                                  (Include Zip Code)

Area Code and Telephone No.:
                                                        (Home)


                                                      (Business)
Tax Identification or
Social Security No.
                                         (Complete Substitute Form W-9 below)

                                               GUARANTEE OF SIGNATURE(S)
                                              (See Instructions 1 and 5)

Authorized Signature(s):

Name:
                                                (Please Type or Print)

Title:

Name of Firm:

Address:


                                                  (Include Zip Code)
Area Code and Telephone No.:

Dated:                                                     , 1999




<PAGE>



                              INSTRUCTIONS
           Forming Part of the Terms and Conditions of the Offer


1. Guarantee of Signatures. No signature guarantee is required if either:

         (a) this Letter of Transmittal  is signed by the  registered  holder of
the Shares (which term, for purposes  hereof,  shall include any  participant in
any of the Book-Entry Transfer Facility systems whose name appears on a security
position  listing as the owner of such Shares)  tendered  hereby  exactly as the
name of such  registered  holder appears on the  certificate(s)  for such Shares
tendered with this Letter of Transmittal and payment and delivery are to be made
directly to such owner unless such owner has  completed  either the box entitled
"Special Payment Instructions" or "Special Delivery Instructions" above; or

         (b) such Shares are tendered for the account of a bank, broker, dealer,
credit  union,  savings  association  or other  entity which is a member in good
standing of the Securities  Transfer Agents Medallion Program or a bank, broker,
dealer,  credit union, savings association or other entity which is an "eligible
guarantor  institution,"  as such  term is  defined  in Rule  17Ad-15  under the
Securities Exchange Act of 1934, as amended (each of the foregoing  constituting
an "Eligible Institution").

     In all other cases, an Eligible  Institution  must guarantee all signatures
on this Letter of Transmittal. See Instruction 5.

2.  Delivery of Letter of Transmittal  and  Certificates;  Guaranteed  Delivery
Procedures.  This Letter of Transmittal is to be completed only if  certificates
for Shares are delivered with it to the Depositary (or such certificates will be
delivered  pursuant to a Notice of Guaranteed  Delivery  previously  sent to the
Depositary) or if a tender for Shares is being made concurrently pursuant to the
procedure for tender by book-entry  transfer set forth in Section 2 of the Offer
to Purchase.  Certificates for all physically tendered Shares or confirmation of
a book-entry  transfer into the Depositary's  account at the Book-Entry Transfer
Facility  of  Shares  tendered  electronically,  together  in each  case  with a
properly  completed and duly executed  Letter of Transmittal (or manually signed
facsimile  thereof),  and  any  other  documents  required  by  this  Letter  of
Transmittal,  should be mailed or delivered to the Depositary at the appropriate
address set forth herein and must be delivered  to the  Depositary  on or before
the Expiration Date.  DELIVERY OF DOCUMENTS TO THE BOOK-ENTRY  TRANSFER FACILITY
IN ACCORDANCE  WITH SUCH  BOOK-ENTRY  TRANSFER  FACILITY'S  PROCEDURES  DOES NOT
CONSTITUTE DELIVERY TO THE DEPOSITARY.

         Stockholders  whose  certificates are not immediately  available or who
cannot deliver certificates for their Shares and all other required documents to
the Depositary  before the Expiration  Date, or whose Shares cannot be delivered
on a timely basis pursuant to the procedures for book-entry  transfer,  must, in
any such case,  tender their Shares by or through any  Eligible  Institution  by
properly  completing  and duly  executing and  delivering a Notice of Guaranteed
Delivery (or facsimile  thereof) and by otherwise  complying with the guaranteed
delivery procedure set forth in Section 2 of the Offer to Purchase.  Pursuant to
such procedure,  certificates  for all physically  tendered Shares or book-entry
confirmations,  as the case may be,  as well as a  properly  completed  and duly
executed  Letter of Transmittal (or manually  signed  facsimile  hereof) and all
other documents required by this Letter of Transmittal,  must be received by the
Depositary  within three (3) Nasdaq Stock Market,  Inc.  National Market trading
days after receipt by the Depositary of such Notice of Guaranteed Delivery,  all
as provided in Section 2 of the Offer to Purchase.

         The  Notice  of  Guaranteed  Delivery  may  be  delivered  by  hand  or
transmitted by telegram,  facsimile  transmission  or mail to the Depositary and
must include a signature  guarantee by an Eligible  Institution  in the form set
forth  therein.  For Shares to be tendered  validly  pursuant to the  guaranteed
delivery  procedure,  the  Depositary  must  receive  the  Notice of  Guaranteed
Delivery on or before the Expiration Date.

         THE METHOD OF DELIVERY OF ALL DOCUMENTS, INCLUDING CERTIFICATES FOR
SHARES, IS AT THE OPTION AND RISK OF THE TENDERING STOCKHOLDER. IF DELIVERY IS 
BY



<PAGE>



MAIL,  REGISTERED  MAIL WITH RETURN  RECEIPT  REQUESTED,  PROPERLY  INSURED,  IS
RECOMMENDED. IN ALL CASES, SUFFICIENT TIME SHOULD BE ALLOWED TO ASSURE DELIVERY.

         The Company will not accept any alternative,  conditional or contingent
tenders,  nor will it  purchase  any  fractional  Shares,  except  as  expressly
provided in the Offer to Purchase. All tendering  Stockholders,  by execution of
this Letter of Transmittal (or a facsimile  hereof),  waive any right to receive
any notice of the acceptance of their tender.

3. Inadequate Space. If the space provided in the box entitled  "Description of
Shares Tendered" above is inadequate,  the certificate numbers and/or the number
of Shares  should be listed on a separate  signed  schedule and attached to this
Letter of Transmittal.

4. Partial Tenders and Unpurchased  Shares. (Not applicable to Stockholders who
tender by book-entry transfer.) If fewer than all of the Shares evidenced by any
certificate  are to be  tendered,  fill in the  number of Shares  that are to be
tendered in the column entitled  "Number of Shares Tendered" in the box entitled
"Description of Shares Tendered" above. In such case, if any tendered Shares are
purchased,  a new  certificate  for the remainder of the Shares  (including  any
Shares not  purchased)  evidenced by the old  certificate(s)  will be issued and
sent to the registered  holder(s) thereof,  unless otherwise specified in either
the box entitled  "Special Payment  Instructions"  or the box entitled  "Special
Delivery  Instructions"  in this Letter of  Transmittal,  as soon as practicable
after the Expiration Date. Unless otherwise indicated, all Shares represented by
the  certificate(s)  set forth above and  delivered  to the  Depositary  will be
deemed to have been tendered.

5.      Signatures on Letter of Transmittal; Stock Powers and Endorsements.

         (a) If this Letter of Transmittal is signed by the registered holder(s)
of the Shares tendered hereby, the signature(s) must correspond exactly with the
name(s)  as  written  on the  face  of the  certificate(s)  without  any  change
whatsoever.

         (b) If the Shares tendered hereby are registered in the names of two or
more joint holders, each such holder must sign this Letter of Transmittal.

         (c) If any tendered Shares are registered in different names on several
certificates, it will be necessary to complete, sign and submit as many separate
Letters  of  Transmittal   (or   facsimiles   hereof)  as  there  are  different
registrations of certificates.

         (d) When  this  Letter  of  Transmittal  is  signed  by the  registered
holder(s) of the Shares tendered hereby,  no  endorsement(s)  of  certificate(s)
representing  such Shares or separate stock power(s) are required unless payment
is to be made or the certificate(s) for Shares not tendered or not purchased are
to  be  issued  to  a  person  other  than  the  registered  holder(s)  thereof.
SIGNATURE(S)  ON  SUCH   CERTIFICATE(S)   MUST  BE  GUARANTEED  BY  AN  ELIGIBLE
INSTITUTION.  If this Letter of Transmittal is signed by a person other than the
registered  holder(s) of the certificate(s)  listed, or if payment is to be made
or certificate(s) for Shares not tendered or not purchased are to be issued to a
person other than the registered holder(s) thereof,  such certificate(s) must be
endorsed or  accompanied by appropriate  stock  power(s),  in either case signed
exactly  as  the   name(s)   of  the   registered   holder(s)   appears  on  the
certificate(s),  and the signature(s) on such  certificate(s)  or stock power(s)
must be guaranteed by an Eligible Institution. See Instruction 1.

         (e) If this  Letter  of  Transmittal  or any  certificate(s)  or  stock
power(s)   are  signed  by  a  trustee,   executor,   administrator,   guardian,
attorney-in-fact,  officer  of a  corporation  or any other  person  acting in a
fiduciary  or  representative  capacity,  such person  should so  indicate  when
signing this Letter of Transmittal and must submit proper evidence  satisfactory
to the Company of his or her authority so to act.

6. Stock  Transfer  Taxes.  Except as provided in this  Instruction 6, no stock
transfer tax stamps or funds to cover such stamps need  accompany this Letter of
Transmittal.  The  Company  will pay any stock  transfer  taxes  payable  on the
transfer to it of Shares purchased  pursuant to the Offer.  If, however,  either
(a) payment of the Purchase  Price for Shares  tendered  hereby and accepted for
purchase is to be made to any person other than the



<PAGE>



registered  holder(s);  or (b) Shares not  tendered or not accepted for purchase
are to be registered in the name(s) of any person(s)  other than the  registered
holder(s); or (c) certificate(s)  representing tendered Shares are registered in
the name(s) of any  person(s)  other than the  person(s)  signing this Letter of
Transmittal, then the Depositary will deduct from such Purchase Price the amount
of any stock transfer taxes (whether imposed on the registered  holder(s),  such
other person(s) or otherwise) payable on account of the transfer to such person,
unless  satisfactory  evidence  of the  payment of such  taxes or any  exemption
therefrom is submitted.

7. Lost,  Stolen,  Destroyed or Mutilated  Certificates.  If any certificate(s)
representing  Shares  has  been  lost,  stolen,   destroyed  or  mutilated,  the
Stockholder  should promptly notify the Depositary by checking the box set forth
above  and  indicating  the  number  of Shares  so lost,  stolen,  destroyed  or
mutilated.  Such Stockholder will then be instructed by the Depositary as to the
steps that must be taken in order to replace  the  certificate.  This  Letter of
Transmittal and related  documents  cannot be processed until the procedures for
replacing lost, stolen,  destroyed or mutilated certificates have been followed.
Stockholders  may  contact  the  Depositary  at (800)  777-3674  (toll  free) to
expedite such process.

8.  Order of Purchase in Event of  Proration.  As described in Section 1 of the
Offer to Purchase,  Stockholders  may  designate the order in which their Shares
are to be purchased in the event of proration. The order of purchase may have an
effect on the federal  income tax treatment of the Purchase Price for the Shares
purchased. See Section 1 and Section 5 of the Offer to Purchase.

9. Special Payment and Delivery Instructions.  If certificate(s) for Shares not
tendered  or not  purchased  and/or  check(s)  are to be issued in the name of a
person  other  than  the  signer  of  this  Letter  of  Transmittal  or if  such
certificates  and/or  checks  are to be sent to  someone  other  than the person
signing this Letter of Transmittal or to the signer at a different address,  the
box entitled  "Special Payment  Instructions"  and/or the box entitled  "Special
Delivery  Instructions"  on this Letter of  Transmittal  should be  completed as
applicable and signatures must be guaranteed as described in Instruction 1.

10. Irregularities. All questions as to the number of Shares to be accepted, the
price to be paid therefor and the validity, form, eligibility (including time of
receipt) and  acceptance  for payment of any tender of Shares will be determined
by the Company in its sole discretion,  which  determination  shall be final and
binding on all parties. The Company reserves the absolute right to reject any or
all tenders of Shares it determines  not to be in proper form or the  acceptance
of which or payment for which may, in the opinion of the Company's  counsel,  be
unlawful.  The Company  also  reserves  the  absolute  right to waive any of the
conditions of the Offer or any defect or irregularity in any tender with respect
to any  particular  Shares  or any  particular  Stockholder,  and the  Company's
interpretation of the terms of the Offer (including these  Instructions) will be
final and  binding  on all  parties.  No  tender of Shares  will be deemed to be
properly  made  until all  defects  and  irregularities  have been  cured by the
tendering  Stockholder or waived by the Company.  Unless waived,  any defects or
irregularities  in connection with tenders must be cured within such time as the
Company shall determine.  None of the Company,  the Depositary,  the Information
Agent (as defined in the Offer to  Purchase)  or any other  person is or will be
obligated to give notice of any defects or irregularities in tenders and none of
them will incur any liability for failure to give any such notice.

11. Questions and Requests for Assistance and Additional  Copies.  Questions and
requests for assistance may be directed to, or additional copies of the Offer to
Purchase,  this Letter of  Transmittal,  the Notice of  Guaranteed  Delivery and
other  related  materials  may be  obtained  from the  Information  Agent at the
address  and  telephone  number  set  forth  on the back  cover of the  Offer to
Purchase or from brokers, dealers, commercial banks or trust companies.

12. Tax  Identification  Number and Backup  Withholding.  Federal income tax law
generally  requires that a stockholder  whose  tendered  Shares are accepted for
purchase, or such stockholder's assignee (in either case, the "Payee"),  provide
the Depositary with such Payee's correct Taxpayer Identification Number ("TIN"),
which,  in the case of a Payee  who is an  individual,  is such  Payee's  social
security  number.  If the  Depositary is not provided with the correct TIN or an
adequate  basis for an  exemption,  such Payee may be  subject to a $50  penalty
imposed by the  Internal  Revenue  Service and backup  withholding  in an amount
equal  to 31%  of  the  gross  proceeds  received  pursuant  to  the  Offer.  If
withholding results in an overpayment of taxes, a refund may be obtained.




<PAGE>



         To prevent  backup  withholding,  each Payee must  provide such Payee's
correct TIN by completing the Substitute  Form W-9 set forth herein,  certifying
that the TIN provided is correct (or that such Payee is awaiting a TIN) and that
(i) the Payee is exempt  from  backup  withholding,  (ii) the Payee has not been
notified by the  Internal  Revenue  Service that such Payee is subject to backup
withholding  as a result of a failure to report all  interest or  dividends,  or
(iii) the Internal  Revenue Service has notified the Payee that such Payee is no
longer subject to backup withholding.

         If the Payee does not have a TIN,  such Payee  should (i)  consult  the
enclosed  Guidelines  for  Certification  of Taxpayer  Identification  Number on
Substitute Form W-9 for  instructions on applying for a TIN, (ii) write "Applied
For" in the space provided in Part 1 of the Substitute  Form W-9, and (iii) sign
and date  the  Substitute  Form W-9 and the  Certificate  of  Awaiting  Taxpayer
Identification  Number  set forth  herein.  If the Payee does not  provide  such
Payee's TIN to the Depositary  within sixty (60) days,  backup  withholding will
begin  and  continue  until  such  Payee  furnishes  such  Payee's  TIN  to  the
Depositary.  Note that writing  "Applied For" on the  Substitute  Form W-9 means
that the Payee has already applied for a TIN or that such Payee intends to apply
for one in the near future.

         If Shares  are held in more than one name or are not in the name of the
actual owner, consult the W-9 Guidelines for information on which TIN to report.

         Exempt Payees  (including,  among others,  all corporations and certain
foreign  individuals)  are not  subject  to  backup  withholding  and  reporting
requirements.  To prevent possible erroneous backup withholding, an exempt Payee
should  write  "Exempt"  in Part 2 of  Substitute  Form  W-9.  See the  enclosed
Guidelines for  Certification  of Taxpayer  Identification  Number on Substitute
Form W-9 for  additional  instructions.  In  order  for a  nonresident  alien or
foreign  entity to qualify as exempt,  such person must submit a completed  Form
W-8 Certificate of Foreign Status,  signed under penalty of perjury attesting to
such exempt status. Such form may be obtained from the Depositary.

13. Withholding On Non-United States Holder.  Even if a Non-United States Holder
(as defined  below) has  provided  the  required  certification  to avoid backup
withholding,  the  Depositary  will withhold  United States federal income taxes
equal to 30% of the gross payments payable to a Non-United States Holder or such
holder's  agent  unless  the  Depositary  determines  that  a  reduced  rate  of
withholding is available  (e.g.,  pursuant to a tax treaty) or that an exemption
from  withholding  is  applicable   (e.g.,   because  such  gross  proceeds  are
effectively  connected with the conduct of a trade or business within the United
States).  For this purpose, a "Non-United States Holder" is any Stockholder that
for United States  federal  income tax purposes is not (i) a citizen or resident
of the United States,  (ii) a corporation or partnership created or organized in
or  under  the laws of the  United  States  or any  State  or  division  thereof
(including  the  District of  Columbia),  (iii) an estate the income of which is
subject to United States  federal  income  taxation  regardless of the source of
such income, or (iv) a trust (a) the  administration  over which a United States
court can exercise primary supervision and (b) all of the substantial  decisions
of which one or more  United  States  persons  have the  authority  to  control.
Notwithstanding the foregoing,  to the extent provided in United States Treasury
Regulations,  certain  trusts in  existence  on August  20,1996,  and treated as
United States  persons prior to such date,  that elect to continue to be treated
as United States persons also will not be Non-United States Holders. In order to
obtain a reduced  rate of  withholding  pursuant to a tax treaty,  a  Non-United
States  Holder  must  deliver to the  Depositary  before the  payment a properly
completed  and  executed  IRS Form 1001.  In order to obtain an  exemption  from
withholding  on the grounds that the gross  proceeds  paid pursuant to the Offer
are  effectively  connected  with the conduct of a trade or business  within the
United  States,  a Non-United  States  Holder must  deliver to the  Depositary a
properly  completed and executed IRS Form 4224. The Depositary  will determine a
Stockholder's status as a Non-United States Holder and eligibility for a reduced
rate  of,  or  an  exemption  from,  withholding  by  reference  to  outstanding
certificates  or  statements  concerning  eligibility  for a reduced rate of, or
exemption from,  withholding (e.g., IRS Form 1001 or IRS Form 4224) unless facts
and  circumstances  indicate that such reliance is not  warranted.  A Non-United
States  Holder may be eligible to obtain a refund of all or a portion of any tax
withheld if such Non-United States Holder meets those tests described in Section
5 of the Offer to Purchase  that would  characterize  the exchange as a sale (as
opposed  to a  dividend)  or is  otherwise  able to  establish  that no tax or a
reduced amount of tax is due.




<PAGE>



         NON-UNITED  STATES  HOLDERS ARE URGED TO CONSULT THEIR OWN TAX ADVISORS
REGARDING THE  APPLICATION  OF UNITED  STATES  FEDERAL  INCOME TAX  WITHHOLDING,
INCLUDING  ELIGIBILITY  FOR A WITHHOLDING  TAX  REDUCTION OR EXEMPTION,  AND THE
REFUND PROCEDURE.

         THIS LETTER OF  TRANSMITTAL,  PROPERLY  COMPLETED AND DULY EXECUTED (OR
MANUALLY  SIGNED  FACSIMILE  HEREOF),  TOGETHER WITH  CERTIFICATES  REPRESENTING
SHARES  BEING  TENDERED OR  CONFIRMATION  OF  BOOK-ENTRY  TRANSFER AND ALL OTHER
REQUIRED DOCUMENTS,  OR A NOTICE OF GUARANTEED DELIVERY,  MUST BE RECEIVED PRIOR
TO 5:00 P.M.,  NEW YORK CITY TIME,  ON THE  EXPIRATION  DATE.  STOCKHOLDERS  ARE
ENCOURAGED  TO  RETURN A  COMPLETED  SUBSTITUTE  FORM W-9 WITH  THIS  LETTER  OF
TRANSMITTAL.








<PAGE>

   SUBSTITUTE   
    FORM W-9    
 Department of  
  the Treasury  
Internal Revenue
    Service     
               PAYER'S NAME: CHASEMELLON SHAREHOLDER SERVICES, L.L.C.

Part  I-Taxpayer  Identification  Number-For  all accounts  enter your  taxpayer
identification  number in the  appropriate  box. For most  individuals  and sole
proprietors, this is your Social Security Number. For other entities, it is your
Employer  Identification Number. If you do not have a number, see "How to Obtain
a TIN"in the enclosed Guidelines.
                                                         
Note:  If the  account is in more than one name,  see the chart on page 1 of the
enclosed Guidelines to determine what number to enter.
                                                                      
Part II-For Payees Exempt From Backup  Withholding (see enclosed  Guidelines and
complete as instructed therein).


Social Security Number


OR

Employer Identification Number


If awaiting TIN write 
    "Applied For".     


Payer's Request
 for Taxpayer
 Identification
  Number


Part III Certification.-Under penalties of perjury, I certify that:

(1) The number shown on this form is my correct taxpayer  identification number,
or I am waiting  for a number to be issued to me and either (a) I have mailed or
delivered  an  application  to receive a taxpayer  identification  number to the
appropriate  Internal  Revenue Service Center or Social Security  Administration
Office or (b) I intend to mail or deliver an application  in the near future.  I
understand that if I do not provide a taxpayer identification number, 31% of all
reportable  payments  made to me thereafter  will be withheld  until I provide a
number;

(2) I am not subject to backup  withholding  because (a) I am exempt from backup
withholding,  or (b) I have not been  notified by the Internal  Revenue  service
("IRS")  that I am  subject  to backup  withholding  as a result of a failure to
report all  interest or  dividends,  or (c) the IRS has notified me that I am no
longer subject to backup withholding; and

(3) Any other information provided on this form is true, correct and complete.

Certification  Instructions-You  must  cross out item (2) above if you have been
notified by the IRS that you are currently subject to backup withholding because
of underreporting  interest or dividends on your tax return.  However,  if after
being  notified  by the IRS that you were  subject  to  backup  withholding  you
received  another  notification  from the IRS that you are no longer  subject to
backup withholding, do not cross out item (2).

               SIGNATURE                                  DATE  


NOTE:  FAILURE TO COMPLETE AND RETURN THIS FORM MAY RESULT IN BACKUP WITHHOLDING
OF 31% OF ANY  PAYMENTS  MADE TO YOU  PURSUANT TO THE OFFER.  PLEASE  REVIEW THE
ENCLOSED  GUIDELINES  FOR  CERTIFICATION  OF TAXPAYER  IDENTIFICATION  NUMBER ON
SUBSTITUTE FORM W-9 FOR INSTRUCTIONS.

YOU MUST COMPLETE THE FOLLOWING  CERTIFICATE  IF YOU WROTE  "APPLIED FOR" IN THE
BOX IN PART I OF THE SUBSTITUTE FORM W-9.

           CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER

I certify under penalty of perjury that a taxpayer identification number has not
been issued to me, and either (1) 1 have mailed or delivered an  application  to
receive a taxpayer  identification  number to the appropriate  Internal  Revenue
Service Center or Social Security  Administration Office or (2) 1 intend to mail
orapplication  deliver an application in the near future. I understand that if I
do not provide a taxpayer  identification  number by the time of payment, 31% of
all payments of the purchase  price  pursuant to the Offer made to me thereafter
will be withheld until I provide a number.

                        SIGNATURE                DATE             , 1999



<PAGE>



                        The Information Agent for the Offer is:

                       ChaseMellon Shareholder Services, L.L.C.
                           450 West 33rd Street, 14th Floor
                               New York, New York 10001
                                   Toll Free Number:
                                    (877) 698-6865


                              Banks and Brokerage Firms,
                                 Please Call Collect:
                                    (212) 273-8083







<PAGE>



                                                                Exhibit (a)(3)



                                Virbac Corporation
                      (Formerly Agri-Nutrition Group Limited)

                           Notice of Guaranteed Delivery
                                        for
                         Tender of Shares of Common Stock

         This Notice of Guaranteed  Delivery,  or one  substantially in the form
hereof,  must be used to accept  the Offer (as  defined  below) if  certificates
evidencing shares of Common Stock, par value $0.01 per share (the "Shares"),  of
Virbac  Corporation,  a  Delaware  corporation  (formerly  Agri-Nutrition  Group
Limited) (the "Company"), are not immediately available, or if the procedure for
book-entry transfer set forth in the Offer to Purchase dated March 18, 1999 (the
"Offer to Purchase") and the related Letter of Transmittal (which, as amended or
supplemented  from time to time,  together  constitute  the  "Offer")  cannot be
completed  on a timely  basis or time will not  permit all  required  documents,
including a properly  completed and duly executed  Letter of  Transmittal  (or a
manually  signed  facsimile  thereof),  to  reach  the  Depositary  prior to the
Expiration Date (as defined in the Offer to Purchase).

         This  Notice  of  Guaranteed  Delivery,  properly  completed  and  duly
executed,  may be  delivered  by hand,  mail or  facsimile  transmission  to the
Depositary. See Section 2 of the Offer to Purchase.

                      The Depositary for the Offer is:

                 ChaseMellon Shareholder Services, L.L.C.

<TABLE>
<CAPTION>
<S>                                   <C>                                    <C>
      By Hand Delivery:                      By Overnight Delivery:                       By Mail:
   120 Broadway, 13th Floor                 85 Challenger Road                          P.O. Box 3301
   New York, New York 10271                   Mail Drop--Reorg                  South Hackensack, New Jersey 07606
   Attn: Reorganization Dept.          Ridgefield Park, New Jersey 07660           Attn: Reorganization Dept.
                                             Attn: Reorganization Dept.
</TABLE>

                               Facsimile Transmission:
                                   (201) 296-4293

                     Confirm Receipt of Facsimile by Telephone:
                                   (201) 296-4860

        DELIVERY OF THIS NOTICE OF GUARANTEED  DELIVERY TO AN ADDRESS OTHER THAN
AS SET FORTH ABOVE OR TRANSMISSION OF  INSTRUCTIONS  VIA FACSIMILE  TRANSMISSION
OTHER THAN AS SET FORTH ABOVE WILL NOT CONSTITUTE A VALID  DELIVERY.  DELIVERIES
TO THE COMPANY WILL NOT BE FORWARDED TO THE  DEPOSITARY  AND THEREFORE  WILL NOT
CONSTITUTE VALID DELIVERY.  DELIVERIES TO THE BOOK-ENTRY  TRANSFER FACILITY WILL
NOT CONSTITUTE VALID DELIVERY TO THE DEPOSITARY.

        This Notice of  Guaranteed  Delivery form is not to be used to guarantee
signatures.  If a  signature  on the Letter of  Transmittal  is  required  to be
guaranteed  by an Eligible  Institution  (as  defined in the Offer to  Purchase)
under the  instructions  thereto,  such  signature  guarantee must appear in the
applicable space provided in the signature box on the Letter of Transmittal.



<PAGE>



Ladies and Gentlemen:

        The  undersigned  hereby  tenders  to the  Company,  upon the  terms and
subject to the  conditions  set forth in the Offer to  Purchase  and the related
Letter of Transmittal,  receipt of which is hereby  acknowledged,  the number of
Shares specified below pursuant to the guaranteed  delivery  procedure set forth
in Section 2 of the Offer to Purchase.




Signature(s):


Name(s) of
Record Holder(s):
                               Please Type or Print




Certificate Nos.
(if available):



Address:


                                             Zip Code
Area Code and
Telephone No.:




If Shares will be  delivered  by  book-entry  transfer,  provide  the  following
information:

Account Number:

Date:




<PAGE>



                                GUARANTEE
                   (Not to be used for a signature guarantee.)

         The  undersigned,   a  bank,  broker,  dealer,  credit  union,  savings
association or other entity which is a member in good standing of the Securities
Transfer  Agents  Medallion  Program or a bank,  broker,  dealer,  credit union,
savings   association   or  other  entity   which  is  an  "eligible   guarantor
institution,"  as such term is  defined  in Rule  17Ad-15  under the  Securities
Exchange  Act of  1934,  as  amended  (each  of the  foregoing  constituting  an
"Eligible Institution"), guarantees the delivery to the Depositary of the Shares
tendered hereby, in proper form for transfer,  or a confirmation that the Shares
tendered  hereby have been  delivered  pursuant to the procedure for  book-entry
transfer set forth in the Offer to Purchase into the Depositary's account at the
Book-Entry  Transfer  Facility,  together  with a  properly  completed  and duly
executed Letter of Transmittal (or a manually signed facsimile  thereof) and any
other required documents, all within three (3) Nasdaq Stock Market, Inc.
National Market trading days of the date hereof.

         The Eligible  Institution that completes this form must communicate the
guarantee  to the  Depositary  and must  deliver the Letter of  Transmittal  and
certificates  representing  Shares to the Depositary  within the time period set
forth herein. Failure to do so could result in a financial loss to such Eligible
Institution.



Name of Firm:

Address:


                                             Zip Code

Area Code and
Telephone No.:





                Authorized Signature

Name:
                    Please Print

Title:

Date:

NOTE:    DO NOT SEND SHARE CERTIFICATES WITH THIS FORM.  CERTIFICATES FOR SHARES
         SHOULD BE SENT WITH THE LETTER OF TRANSMITTAL.







<PAGE>




                                                                  Exhibit (a)(4)

                           Offer to Purchase for Cash
                     Up to 1,000,000 Shares of Common Stock
                                       of
                               Virbac Corporation
                     (Formerly Agri-Nutrition Group Limited)
                                       at
                               $3.00 Net Per Share


THE OFFER AND  WITHDRAWAL  RIGHTS  WILL EXPIRE AT 5:00 P.M.,  NEW YORK TIME,  ON
MONDAY, APRIL 19, 1999, UNLESS THE OFFER IS EXTENDED.

To Brokers, Dealers, Commercial Banks,                            March 18, 1999
     Trust Companies and Other Nominees:

     We have  been  appointed  by Virbac  Corporation,  a  Delaware  corporation
(formerly  Agri-Nutrition  Group  Limited)  (the  "Company"),   to  act  as  the
Information  Agent and  Depositary  in  connection  with its  offer to  purchase
1,000,000  shares of the Company's  Common Stock, par value $0.01 per share (the
"Shares"),  at $3.00 per Share,  net to the  seller in cash,  upon the terms and
subject to the  conditions  set forth in an Offer to  Purchase,  dated March 18,
1999, and the related Letter of Transmittal (which, together with any amendments
or supplements  thereto,  collectively  constitute the "Offer").  Please furnish
copies of the enclosed materials to those of your clients for whose accounts you
hold Shares in your name or in the name of your nominee.

     Enclosed  herewith for your  information and for forwarding to your clients
are copies of the following documents:

         1. Offer to Purchase, dated March 18, 1999.

         2.  Letter of  Transmittal  to tender  Shares for your use and for the
information of your clients,  together with  Guidelines of the Internal  Revenue
Service for Certification of Taxpayer  Identification  Number on Substitute Form
W-9 providing  information  relating to backup federal  income tax  withholding.
Manually  signed  facsimile  copies of the Letter of Transmittal  may be used to
tender Shares.

         3. Notice of  Guaranteed  Delivery for Shares to be used to accept the
Offer if neither of the two  procedures  for  tendering  Shares set forth in the
Offer to Purchase can be completed on a timely basis.

         4.  A form of  letter  which  may be sent to your  clients  for  whose
accounts you hold Shares registered in your name or in the name of your nominee,
with space provided for obtaining such clients'  instructions with regard to the
Offer.





<PAGE>




         5. Return  envelope  addressed to  ChaseMellon  Shareholder  Services,
L.L.C., the Depositary.

     Your prompt  action is  requested.  We urge you to contact  your clients as
promptly  as  possible.  Please note that the offer and  withdrawal  rights will
expire at 5:00 P.M., New York time, on Monday,  April 19, 1999, unless the Offer
is extended.

     Please note the following:

         1. The tender price is $3.00 per Share, net to the seller in cash.

         2. The Offer is being made for 1,000,000 Shares.

         3. Tendering  stockholders  will not be obligated to pay brokerage fees
     or  commissions  or, except as set forth in  Instruction 6 of the Letter of
     Transmittal,  transfer  taxes on the  purchase  of  Shares  by the  Company
     pursuant to the Offer. However,  federal income tax backup withholding at a
     rate of 31% may be required,  unless an exemption is provided or unless the
     required tax identification  information is provided. See Instruction 12 of
     the Letter of Transmittal.

         4. The Offer and  withdrawal  rights will expire at 5:00 P.M., New York
     time, on Monday, April 19, 1999, unless the Offer is extended.

         5. Notwithstanding any other provision of the Offer, payment for Shares
     accepted  for payment  pursuant to the Offer will in all cases be made only
     after timely receipt by the Depositary of (a)  certificates for such Shares
     (the  "Certificates")  pursuant to the procedures set forth in Section 2 of
     the Offer to Purchase,  or a timely Book-Entry  Confirmation (as defined in
     the Offer to  Purchase)  with  respect  to such  Shares,  (b) the Letter of
     Transmittal (or a manually signed facsimile  thereof),  properly  completed
     and duly executed with any required  signature  guarantees (or, in the case
     of  book-entry  transfers,  an Agent's  Message (as defined in the Offer to
     Purchase)),  and  (c)  any  other  documents  required  by  the  Letter  of
     Transmittal.  Accordingly,  payment  may  not  be  made  to  all  tendering
     stockholders at the same time depending upon when Certificates are actually
     received by the Depositary.

     In order to take  advantage of the Offer,  (i) a duly executed and properly
completed Letter of Transmittal (or a manually signed facsimile thereof) and any
required  signature  guarantees  (or, in the case of  book-entry  transfers,  an
Agent's  Message),  and  any  other  required  documents  should  be sent to the
Depositary and (ii) either  Certificates  representing  the tendered Shares or a
timely  Book-Entry  Confirmation (as defined in the Offer to Purchase) should be
delivered to the Depositary in accordance with the instructions set forth in the
Letter of Transmittal and the Offer to Purchase.

     If holders of Shares wish to tender their Shares,  but it is  impracticable
for them to forward the Certificates for such Shares or other required documents
or complete the procedures for book-entry transfer prior to the Expiration Date,
a tender  may be  effected  by  following  the  guaranteed  delivery  procedures
specified in Section 2 of the Offer to Purchase.




<PAGE>





     The Company will not pay any fees or commissions to any broker or dealer or
other person (other than the Information  Agent or the Depositary,  as described
in the Offer to  Purchase)  for  soliciting  tenders of Shares  pursuant  to the
Offer.  The Company will,  however,  upon  request,  reimburse you for customary
mailing and handling  expenses incurred by you in forwarding any of the enclosed
materials  to your  clients.  The Company will pay or cause to be paid any stock
transfer  taxes payable on the transfer of the Shares to it, except as otherwise
provided in Instruction 6 of the Letter of Transmittal.

     Any  inquiries  you may have with  respect to the Offer should be addressed
to, and  additional  copies of the  enclosed  materials  may be  obtained  from,
ChaseMellon  Shareholder Services,  L.L.C., the Information Agent for the Offer,
or the undersigned at their respective addresses and telephone numbers set forth
on the back cover of the Offer to Purchase.

Very truly yours,

ChaseMellon Shareholder Services, L.L.C.





     NOTHING CONTAINED HEREIN OR IN THE ENCLOSED  DOCUMENTS SHALL CONSTITUTE YOU
OR ANY OTHER  PERSON AS AN AGENT OF THE  COMPANY,  THE  INFORMATION  AGENT,  THE
DEPOSITARY OR ANY AFFILIATE OF ANY OF THEM, OR AUTHORIZE YOU OR ANY OTHER PERSON
TO USE ANY DOCUMENT OR MAKE ANY STATEMENT ON BEHALF OF ANY OF THEM IN CONNECTION
WITH THE OFFER OTHER THAN THE  DOCUMENTS  ENCLOSED  HEREWITH AND THE  STATEMENTS
CONTAINED THEREIN.






<PAGE>




                                                                  Exhibit (a)(5)



                     Offer to Purchase for Cash
               Up to 1,000,000 Shares of Common Stock
                                 of
                         Virbac Corporation
               (Formerly Agri-Nutrition Group Limited)
                                 at
                         $3.00 Net Per Share


THE OFFER AND  WITHDRAWAL  RIGHTS  WILL EXPIRE AT 5:00 P.M.,  NEW YORK TIME,  ON
MONDAY, APRIL 19, 1999, UNLESS THE OFFER IS EXTENDED.

To Our Clients:

     Enclosed for your consideration are the Offer to Purchase,  dated March 18,
1999 (the "Offer to Purchase"),  and the related  Letter of Transmittal  (which,
together with any amendments or supplements thereto, collectively constitute the
"Offer") and other materials  relating to the Offer to purchase shares of common
stock,  par value  $0.01 per share  (the  "Shares"),  of Virbac  Corporation,  a
Delaware corporation (formerly Agri-Nutrition Group Limited) (the "Company"), at
a purchase price of $3.00 per Share,  net to the seller in cash,  upon the terms
and subject to the  conditions  set forth in the Offer.  Holders of Shares whose
certificates for such Shares (the "Certificates") are not immediately  available
or who cannot deliver their Certificates and all other required documents to the
depositary  for the Offer (the  "Depositary")  or complete  the  procedures  for
book-entry  transfer on or prior to the Expiration Date (as defined in the Offer
to  Purchase)  must tender their Shares  according  to the  guaranteed  delivery
procedures set forth in Section 2 of the Offer to Purchase.

     We are (or our  nominee  is) the holder of record of Shares  held by us for
your  account.  A tender of such  Shares can be made only by us as the holder of
record and pursuant to your instructions. The Letter of Transmittal accompanying
this letter is furnished to you for your  information only and cannot be used by
you to tender Shares held by us for your account.

     Accordingly,  we request  instructions  as to  whether  you wish to have us
tender any or all of the Shares held by us for your account,  upon the terms and
subject to the conditions set forth in the Offer.

     Your attention is directed to the following:

         1. The tender price is $3.00 per Share, net to the seller in cash.

         2. The Offer is being made for 1,000,000 Shares.





<PAGE>




         3. Tendering  stockholders  will not be obligated to pay brokerage fees
     or  commissions  or, except as set forth in  Instruction 6 of the Letter of
     Transmittal,  transfer  taxes on the  purchase  of  Shares  by the  Company
     pursuant to the Offer. However,  federal income tax backup withholding at a
     rate of 31% may be required,  unless an exemption is provided or unless the
     required taxpayer  identification  information is provided. See Instruction
     12 of the Letter of Transmittal.

         4. The Offer and  withdrawal  rights will expire at 5:00 P.M., New York
     time, on Monday, April 19, 1999, unless the Offer is extended.

         5.  Notwithstanding  any other  provision  of the Offer,  payment  for
     Shares accepted for payment pursuant to the Offer will in all cases be made
     only after timely receipt by the Depositary of (a) Certificates pursuant to
     the procedures set forth in Section 2 of the Offer to Purchase, or a timely
     Book-Entry  Confirmation (as defined in the Offer to Purchase) with respect
     to such  Shares,  (b) the  Letter  of  Transmittal  (or a  manually  signed
     facsimile thereof),  properly completed and duly executed with any required
     signature  guarantees,  or an Agent's  Message  (as defined in the Offer to
     Purchase)  in  connection  with a  book-entry  transfer,  and (c) any other
     documents required by the Letter of Transmittal.  Accordingly,  payment may
     not be made to all tendering  stockholders  at the same time depending upon
     when Certificates are actually received by the Depositary.

     The Offer is not being  made to (nor will  tenders be  accepted  from or on
behalf of) holders of Shares residing in any jurisdiction in which the making of
the Offer or acceptance thereof would not be in compliance with the laws of such
jurisdiction.  In any jurisdiction where the securities,  blue sky or other laws
require the Offer to be made by a licensed broker or dealer,  the Offer shall be
deemed to be made on behalf of the Company by ChaseMellon  Shareholder Services,
L.L.C., the Information Agent of the Offer, or one or more registered brokers or
dealers licensed under the laws of such jurisdictions.

     If you wish to have us tender any or all of the Shares  held by us for your
account, please so instruct us by completing, executing, detaching and returning
to us the instruction form set forth below.  Please forward your instructions to
us in ample  time to permit us to  submit a tender on your  behalf  prior to the
Expiration Date.




<PAGE>




                       Instructions with Respect to the
                          Offer to Purchase for Cash
                              1,000,000 Shares of
                                 Common Stock
                                      of
                              Virbac Corporation
                    (Formerly Agri-Nutrition Group Limited)

     The undersigned  acknowledge(s)  receipt of your letter, the enclosed Offer
to Purchase, dated March 18, 1999, and the related Letter of Transmittal (which,
together with any amendments or supplements thereto, collectively constitute the
"Offer")  in  connection  with the  offer to  purchase  up to  1,000,000  of the
outstanding shares of common stock, par value $0.01 per share (the "Shares"), of
Virbac  Corporation,  a  Delaware  corporation  (formerly  Agri-Nutrition  Group
Limited) (the "Company").

     This  will  instruct  you to  tender to the  Company  the  number of Shares
indicated below (or if no number is indicated  below, all Shares) which are held
by you for the  account of the  undersigned,  upon the terms and  subject to the
conditions set forth in the Offer.


Number of Shares to be Tendered:
Date:
                                                     SIGN HERE
Signature(s):
Print Name(s):
Print Address(es):
Area Code and Telephone Number(s):
Taxpayer Identification or Social Security Number(s):

THIS FORM MUST BE RETURNED TO THE BROKERAGE FIRM MAINTAINING YOUR ACCOUNT.







<PAGE>




                                                                  Exhibit (a)(6)

            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                           NUMBER ON SUBSTITUTE FORM W-9

Guidelines for Determining the Proper  Identification  Number to Give the Payer.
Social  Security  numbers  have nine  digits  separated  by two  hyphens:  e.g.,
000-00-0000.  Employer Identification numbers have nine digits separated by only
one hyphen: e.g., 00-0000000.  The table below will help determine the number to
give the payer.
<TABLE>
<CAPTION>


                                                                                                     Give the
                                  Give the                                                           EMPLOYER
For this type of account:         SOCIAL SECURITY                                                    IDENTIFICATION
                                  number of --                      For this type of account:        number of --
- --------------------------------- --------------------------------  -------------------------------- ----------------------------
<S>                               <C>                               <C>                             <C>
1.    Individual                  The individual                     6.   Sole proprietorship        The owner(3)
2.    Two or more individuals     The actual owner of the account    7.   A valid trust, estate, or  The legal entity (Do not
      (joint account)             or, if combined funds, the first        pension trust              furnish the identifying number
                                  individual on the account(1)                                       of the personal representative
                                                                                                     or trustee unless the legal
                                                                                                     entity itself is not designated
                                                                                                     in the account title.)(4)
3.    Custodian account of a      The minor(2)                       8.   Corporate                  The corporation
      minor (Uniform Gift to
      Minors Act)
4.    a.  The usual revocable     The grantor-trustee(1)             9.   Association, club,         The organization
          savings trust (grantor                                          religious, charitable,
          is also trustee)                                                educational or other tax-
                                                                          exempt organization
      b.  So-called trust         The actual owner(1)               10.   Partnership                The partnership
          account that is not a
          legal or valid trust
          under state law
5.    Sole proprietorship         The owner(3)                      11.   A broker or registered     The broker or nominee
                                                                          nominee
                                                                    12.   Account with the           The public entity
                                                                          Department of Agriculture
                                                                          in the name of public
                                                                          entity (such as a state or
                                                                          local government, school
                                                                          district, or prison) that
                                                                          receives agriculture
                                                                          program payments
</TABLE>


(1)  List first and circle the name of the person whose number you furnish.

(2)  Circle the minor's name and furnish the minor's social security number.

(3)  Show the name of the owner.

(4)  List  first and  circle  the name of the legal  trust,  estate,  or pension
     trust.  

Note: If no name is circled when there is more than one name, the number will be
considered to be that of the first name listed.




<PAGE>




           GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9
                                    Page 2

Section references are to the Internal Revenue Code.

Obtaining a Number

If you don't  have a  taxpayer  identification  number  or you  don't  know your
number, obtain Form SS-5, Application for a Social Security Number Card, or Form
SS-4, Application for Employer Identification Number, at the local office of the
Social Security Administration or the Internal Revenue Service (the "IRS") and
apply for a number.

Payees Exempt from Backup Withholding

The following is a list of payees generally exempt from backup withholding.  For
interest and dividends,  all listed payees are exempt except the payee listed in
item (9). For broker transactions, payees listed in items (1) through (13) and a
person  registered under the Investment  Advisors act of 1940 who regularly acts
as a broker are exempt.  Payments  subject to reporting  under sections 6041 and
6041A are generally exempt from backup withholding only if made to payees listed
in items (1) through (7),  except that a corporation  that provides  medical and
health  care  services or bills and collect  payments  for such  services is not
exempt from backup  withholding.  Only payees described in items (2) through (6)
are exempt from backup, withholding for barter exchange transactions,  patronage
dividends,  and payments by certain fishing boat  operators.  

(1)  A corporation.

(2)  an  organization  exempt  from tax  under  section  501(a),  an  individual
     retirement plan ("IRA"), or a custodial account under section 403(b)(7), if
     the account satisfies the requirements of section 401(f)(2).

(3)  The United States or any of its agencies or instrumentalities.

(4)  A State,  the District of Columbia,  a possession of the United States,  or
     any of their political subdivisions or instrumentalities.

(5)  A foreign  government  or any of its  political  subdivisions,  agencies or
     instrumentalities.

(6)  An international organization or any of its agencies or instrumentalities.

(7)  A foreign central bank of issue.

(8)  A dealer in  securities or  commodities  required to register in the United
     States, the District of Columbia, or a possession of the United States.

(9)  A futures commission merchant registered with the Commodity Futures Trading
     Commission.

(10) A real estate investment trust.

(11) An entity  registered at all times during the tax year under the Investment
     Company Act of 1940.

(12) A common trust fund operated by a bank under section 584(a).

(13) A financial institution.

(14) A middleman known in the investment community as a nominee or listed in the
     most recent  publication of the American Society of Corporate  Secretaries,
     Inc., Nominee List.

(15) A trust exempt from tax under section 664 or described in section 4947.

Payments Exempt from Backup Withholding

Payments of dividends and patronage dividends generally not
subject to backup withholding also include the following:
o      Payments to nonresident aliens subject to withholding under
       section 1441.
o      Payments to partnerships not engaged in a trade or business in the United
       States and that have at least one nonresident alien partner.
o      Payments of patronage dividends not paid in money.
o      Payments made by certain foreign organizations.
o      Section 404(k) payments made by an ESOP.

Payments of interest generally not subject to backup withholding
include the following:

o       Payments of interest on obligations issued by individuals.
        Note:  You may be subject to backup withholding if this
        interest is $600 or more and is paid in the course of the
        payer's trade or business and you have not provided your
        correct taxpayer identification number to the payer.
o       Payments of tax-exempt interest (including exempt interest
        dividends under section 852).
o       Payments described in section 6049(b)(5) to nonresident
        aliens.
o       Payments on tax-free covenant bonds under section 1451.
o       Payments made by certain foreign organizations.
o       Mortgage interest paid by you.

Payments that are not subject to  information  reporting are also not subject to
backup withholding. For details see sections 6041, 6041, 6042, 6044, 6045, 6049,
6050A and 6050N, and the regulations under such sections.

Privacy Act Notice

Section 6109 requires you to give your correct taxpayer identification number to
persons  who must file  information  returns  with the IRS to  report  interest,
dividends, and certain other income paid to you, mortgage interest you paid, the
acquisition  or  abandonment  of  secured  property,  cancellation  of debt,  or
contributions  you made to an IRA.  The IRS uses the numbers for  identification
purposes  and to help verify the  accuracy of your tax return.  You must provide
your taxpayer identification number




<PAGE>




whether or not you are  qualified  to file a tax return.  Payers must  generally
withhold 31% of taxable  interest,  dividend,  and certain  other  payments to a
payee who does not furnish a taxpayer  identification number to a payer. Certain
penalties may also apply.

Penalties

(1) Penalty for Failure to Furnish Taxpayer  Identification  Number. If you fail
to furnish your taxpayer  identification number to a payer, you are subject to a
penalty of $50 for each such failure  unless your  failure is due to  reasonable
cause and not to willful neglect.

(2) Civil Penalty for False Information With Respect to Withholding. If you make
a  false  statement  with  no  reasonable   basis  that  results  in  no  backup
withholding, you are subject to a $500 penalty.

(3) Criminal Penalty for Falsifying  Information.  Falsifying  certifications or
affirmations  may subject  you to  criminal  penalties  including  fines  and/or
imprisonment.

                      FOR ADDITIONAL INFORMATION CONTACT
                      YOUR TAX CONSULTANT OR THE INTERNAL
                                REVENUE SERVICE







                  

<PAGE>




                                                                     Exhibit (c)

                              STOCKHOLDERS' AGREEMENT

       This Stockholders' Agreement,  dated as of February 8, 1999, among Virbac
S.A., a French  corporation  ("VBSA"),  and the  stockholders of  Agri-Nutrition
Group Limited who have executed this  agreement  (the "AGNU  Stockholders"  with
each being referred to herein as a "Stockholder").

       WHEREAS,  Agri-Nutrition  Group  Limited  ("AGNU")  has entered into that
Agreement and Plan of Merger with VBSA and Virbac,  Inc., a Delaware corporation
and subsidiary of VBSA  ("Virbac"),  dated as of October 16, 1998, as amended by
the First  Amendment to Agreement  and Plan of Merger,  dated as of November 20,
1998,  among  AGNU,  VBSA and Virbac  (the  "Merger  Agreement"),  which  Merger
Agreement  sets forth the terms and  conditions of the merger of Virbac with and
into AGNU (the "Merger");

       WHEREAS, each of the Stockholders  beneficially owns the number of shares
set forth opposite his or her name on Exhibit A to this Stockholders' Agreement.
The shares of AGNU Common Stock  described in the  preceding  sentence  together
with any other  voting or equity  securities  of AGNU of which the  Stockholders
acquire beneficial ownership after the date of this Stockholders'  Agreement but
prior to the  consummation of the Merger are referred to herein  collectively as
the "Shares." Each Stockholder is entitled to vote the Shares beneficially owned
by the Stockholder,  and no Stockholder has entered into any voting  arrangement
with respect to the Shares except as provided in this Stockholders' Agreement or
granted any proxy with respect to any of the Shares;

       WHEREAS,   in  connection  with  the  Merger   Agreement,   each  of  the
Stockholders  is  willing  to  agree,  to (i)  vote  the  Shares  owned  by such
Stockholder  for the  adoption of the Merger  Agreement  and the approval of the
Merger and the other  transactions  contemplated by the Merger Agreement subject
to the conditions set forth herein,  and (ii) the other matters  provided for in
this Stockholders'  Agreement,  upon the terms and subject to the conditions set
forth herein;

       WHEREAS,  pursuant to Section 8.1 of the Merger Agreement,  the surviving
corporation in the Merger (the "Surviving  Corporation")  has agreed to make and
complete a tender  offer (the  "Tender  Offer") to  repurchase  1,000,000 of the
issued and  outstanding  shares of AGNU Common  Stock,  par value $.01 per share
("Common Stock"), at a price of $3.00 per share;

       WHEREAS,  upon consummation of the Merger and the Tender Offer, VBSA will
indirectly  own 60% of the  outstanding  shares  of AGNU  Common  Stock and VBSA
desires  assurance  that at least  1,000,000  shares  of AGNU  Common  Stock are
tendered in the Tender Offer; and

       WHEREAS,  the AGNU  Stockholders  are  willing in the event that at least
1,000,000  shares of AGNU Common Stock are not tendered by the  Stockholders  of
AGNU  in the  Tender  Offer  to  provide  sufficient  shares  to  the  Surviving
Corporation so that the entire 1,000,000 shares will be tendered.

       NOW, THEREFORE, in consideration of the premises and agreements contained
in this Stockholders'  Agreement,  and for good and valuable consideration,  the
receipt and sufficiency of which are hereby acknowledged, the parties, intending
to be legally bound, hereby agree as follows:





<PAGE>




       1. Defined Terms.  Capitalized terms used in this Stockholders' Agreement
will,  unless  otherwise  defined  in this  Stockholders'  Agreement,  have  the
meanings assigned to them in the Merger Agreement.

       2.         Voting Agreement.

       (a) AGNU  Stockholders  Meeting.  Subject to Section 2(c) hereof,  at the
AGNU  Stockholders  Meeting or any meeting of the stockholders of AGNU,  however
called,  and in any action by consent of the  stockholders  of AGNU, each of the
Stockholders will vote all of the Shares  beneficially owned by such Stockholder
and  entitled  to vote (i) for  approval of the Merger  Agreement  and the other
transactions  contemplated  by the Merger  Agreement,  (ii) for  approval of the
amendment to the AGNU Restated  Certificate of Incorporation  (the  "Certificate
Amendment")  to increase  the number of  authorized  shares of AGNU Common Stock
from  20,000,000  shares to  38,000,000  shares,  (iii)  against  any  action or
agreement  that  would  result  in a  breach  of any  representation,  warranty,
covenant,  agreement or other  obligation of AGNU under the Merger  Agreement or
may  result in any of the  conditions  to AGNU's  obligations  under the  Merger
Agreement not being fulfilled and (iv) in favor of any other matter necessary to
consummate the transactions  contemplated by the Merger Agreement and considered
and voted upon by the stockholders of AGNU.

       (b) Other Actions.  Subject to Section 2(c) hereof, the Stockholders will
not solicit,  encourage or recommend to other  holders of AGNU Common Stock that
those holders (i) vote their shares of AGNU Common Stock or any other securities
of AGNU in any manner that would,  directly or  indirectly,  impede or adversely
effect  stockholder  approval of the Merger Agreement and the other transactions
contemplated by the Merger Agreement or the Certificate  Amendment,  (ii) at the
AGNU Stockholders Meeting, abstain from voting, or otherwise fail to vote, their
shares of AGNU Common Stock, (iii) sell,  transfer,  tender or otherwise dispose
of their shares of AGNU Common Stock or (iv) exercise any dissenters'  appraisal
or other similar rights, if any.

       (c) Limitation on Obligations.  The  obligations  under Sections 2(a) and
2(b) of each Stockholder who is a director or officer of AGNU are subject to his
obligation  to  faithfully  discharge  his duties as a director or an officer of
AGNU;  provided,  however,  if AGNU  has not  terminated  the  Merger  Agreement
pursuant  to  Section  10.1(g)  of the  Merger  Agreement  or if Virbac  has not
terminated  the  Merger  Agreement  pursuant  to  Section  10.1(f) of the Merger
Agreement,  each such  Stockholder  will  vote his  Shares  in  accordance  with
Sections 2(a) and 2(b).

       3.  Agreement  to Tender  Common  Stock.  In the event  that  fewer  than
1,000,000 shares of Common Stock are tendered by the stockholders of AGNU in the
Tender Offer, the AGNU Stockholders hereby agree that they will tender shares of
Common Stock equaling the  difference  between  1,000,000  shares and the amount
actually tendered.

       4. Amount of Common Stock to be Tendered. In the event that five business
days prior to the expiration date of the Tender Offer the AGNU Stockholders have
not reached an agreement as to the number of shares that each  Stockholder  will
tender to the Surviving  Corporation,  then each Stockholder will tender his/its
shares on a pro rata basis in  proportion  to the amount of shares  held by each
Stockholder  on the  expiration  date of the Tender Offer,  excluding any shares
accepted for tender in the Tender Offer.

       5. Share  Ownership.  Each  Stockholder  represents  and warrants to VBSA
that,  as of the date of this  Stockholders'  Agreement,  the  Shares  set forth
opposite such stockholder's  name on Exhibit A to this  Stockholders'  Agreement
constitute  all of the shares of AGNU Common  Stock  beneficially  owned by such
stockholder and such Shares are owned free and clear of any Liens.




<PAGE>





       6.  No  Other   Obligations  or   Liabilities.   The  execution  of  this
Stockholders'  Agreement  by the AGNU  Stockholders  will not have the effect of
creating any  obligations  or liabilities  other than those  expressly set forth
herein.

       7.         Miscellaneous.

       (a)  Counterparts.  This  Stockholders'  Agreement  may be  executed  and
delivered in one or more  counterparts,  and by the different  parties hereto in
separate counterparts,  each of which when executed and delivered will be deemed
to be an original but all of which taken  together  constitute  one and the same
agreement.

       (b)  Governing  Law.  This  Stockholders'  Agreement  is governed by, and
construed in accordance  with, the laws of the State of Delaware  without giving
effect to applicable principles of conflicts of law.

       (c) Entire Agreement. This Stockholders' Agreement constitutes the entire
agreement of the parties and supersedes all prior  agreements and  undertakings,
both written and oral, between the parties,  or any of them, with respect to the
subject matter hereof.






<PAGE>




         IN WITNESS WHEREOF,  the parties have duly executed this  Stockholders'
Agreement as of the date first above written.

                                      VIRBAC, S.A.

                                      By:  /s/          Pascal Boissy
                                      Name:             Pascal Boissy
                                      Title:            President


                                      AGNU STOCKHOLDERS:

                                      Durvet/PMR, L.P.

                                      By:  Durvet, Inc. its general partner

                                      By:    /s/        Robert E. Hormann
                                      Name:             Robert E. Hormann
                                      Title:            President


                                      /s/      W.M. Jones, Jr.
                                      W.M. Jones, Jr.


                                      /s/      Bruce G. Baker
                                      Bruce G. Baker


                                      /s/      Robert W. Schlutz
                                      Robert W. Schlutz


                                      /s/      Alec L. Poitevint, II
                                      Alec. L. Poitevint, II


                                      /s/      Robert E. Hormann
                                      Robert E. Hormann


                                      /s/      Robert J. Elfanbaum
                                      Robert J. Elfanbaum



                                

<PAGE>




                                       EXHIBIT A

                                    SHARE OWNERSHIP


Stockholder                                  Number of Shares Beneficially Owned
Durvet/PMR, L.P.                                          1,240,000
W.M. Jones, Jr.                                             667,107
Bruce G. Baker                                              618,291
Robert W. Schlutz                                           485,280
Alec. L. Poitevint, II                                      408,844
Robert E. Hormann                                           228,427
Robert J. Elfanbaum                                         102,375



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