Quarantine and testing is necessary to avoid bringing BVD virus into your herd. Test all breeding herd additions for BVD PI status and quarantine (keep separate from your herd with no fence-line contact) for at least 30 days after arrival and until negative test results have come back.  Newly purchased cattle should be appropriately vaccinated for BVD prior to being turned in with your herd. 

Any cows/heifers that are purchased while pregnant should be quarantined until they calve and their calf tests negative for BVD PI status. If quarantine of pregnant cattle is not possible, test the pregnant animal prior to contact with the herd and test her calf once it is born.

Any cattle that are confirmed as BVD PI should be sold directly to slaughter or humanely euthanized and the previous owner should be notified of their positive status.  Read the Academy of Veterinary Consultants position on BVD by clicking on the following link:  AVC BVD Position Statement.

If you choose not to quarantine and test newly purchased cattle, you risk bringing BVD into your herd. How much risk your herd is exposed to depends on the type of cattle that you purchase. The highest risk would come from pregnant cattle that went through the salebarn prior to 5 months gestation. Pregnant cattle may give birth to a PI calf if they were exposed to BVD in early gestation. Therefore, your risk of bringing BVD into your herd depends on the herd of origin and the other cattle that she has been exposed to. Purchased stocker cattle that will have contact with your pregnant herd would also be high risk.