Ask the Vet
BVD Prevention Helps Cattle Herd
READER QUESTION:
You've talked about BVD in prior issues. What do we need to do to prevent it in our herd?
DR. MCMILLAN'S ANSWER:
Again, BVD is a very confusing and misunderstood disease. Most people do not need a complete understanding of it. In fact, I am pretty sure I don't. I am still learning as is everyone involved with this disease.
You and your veterinarian need to create a comprehensive herd health program. Vaccinations and BVD protection must be a part of that. Many vaccines are labeled to provide fetal protection which means if the cow is transiently infected with BVDV, the developing calf will be protected.
A good biosecurity program is always essential to prevent exposure of the herd to disease. Purchase cattle only from well-known managed herds. Quarantine any incoming calves, cattle or bulls for at least three to four weeks before introducing them into the herd. Fence line management can be important if neighbor herds are not well managed.
Good nutrition including good mineral nutrition is essential to having a healthy and disease resistant herd. Minimize stress any time cattle are handled. Good working facilities are not a cost, but an investment, that pays for itself many times over.
Testing can be very helpful in finding and removing any "PIs" from the herd. Since a PI cow will always have a PI calf, testing all calves, bulls and any cows that did not calve at the end of calving season is a very effective herd screening method. A tissue sample in a special solution is required and can be obtained by ear notching or a special gum that collects the sample into a small prenumbered tube.
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Editor's Note: Please contact your veterinarian with questions about the health of your herd or other animals. Every operation is unique, and the information in this column does not pertain to all situations. This is not intended as medical advice but is purely for informational purposes. Email Dr. Ken McMillan at vet@dtn.com.
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