MWI Veterinary Supply, Inc. Announces Its Third Quarter Fiscal 2010 Earnings Release Date and Conference Call Information

MERIDIAN, ID–(Marketwire – July 21, 2010) –  MWI Veterinary Supply, Inc. (NASDAQ: MWIV) announced today that the Company will release financial results for its fiscal year 2010 third quarter ended June 30, 2010 and update its business outlook for its fiscal year ending September 30, 2010 on Thursday, July 29, 2010. MWI will host a conference call the same day at 11:00 am eastern time to discuss these results and its business outlook.

For calls within the United States you can access the conference call by dialing (877) 638-4561 and international callers can access the conference by dialing (720) 545-0002. Participants will be required to register their name and company affiliation for the conference call. The conference call will also be carried live on the Company’s website at www.mwivet.com. Audio replay will be made available through August 12, 2010 by calling (800) 642-1687 for calls within the United States or (706) 645-9291 for international calls using the passcode 89688546 or by accessing the Company’s website.

About MWI Veterinary Supply, Inc.:
MWI Veterinary Supply, Inc. is a leading distributor of animal health products to veterinarians across the United States and United Kingdom. The products MWI sells include pharmaceuticals, vaccines, parasiticides, diagnostics, capital equipment, supplies, veterinary pet food and nutritional products. The Company markets these products to veterinarians in both the companion animal and production animal markets.