<PAGE>
CONSENT OF INDEPENDENT ACCOUNTANTS
----------------------------------
We hereby consent to the use in this Registration Statement on Form S-1 of
our reports dated March 29, 2000, except as to the exchange of shares which
is as of June 21, 2000, relating to the financial statements and financial
statement schedules of Charles River Laboratories International, Inc., which
appear in such Registration Statement. We also consent to the references to
us under the headings "Experts" in such Registration Statement.
/s/ PricewaterhouseCoopers LLP
Boston, Massachusetts
June 21, 2000