Bovine viral diarrhea (BVD) is one of the most complex diseases of cattle. Prevention is based on four steps:
1. Biosecurity: Only purchase replacement animals that test negative for persistent infection (PI).
2. Proper nutrition, especially correction of trace mineral deficiencies (copper, selenium, and zinc).
3. Herd monitoring to be sure there are no PI animals.
4. A proper vaccination program against the BVD virus.
Consult your private veterinarian for more details of a BVD prevention program that fits your ranch management practices.
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