Veterinary Drug Handbook (VDH) is the reference veterinarians turn to when they want an independent source of information on the drugs that are used in veterinary medicine today.

Registered cow

Cow that has a pedigree and is registered at the Breed Association. There are 6 major dairy breeds within associations: Ayrshire, Brown Swiss, Guernsey, Holstein, Jersey, and Milking Shorthorn.
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