PIs and Trojans endanger BVD eradication efforts

Since BVD testing of calves began, there have been 5.62 million tests results.

The key to eradicating Bovine Viral Diarrhoea from the national herd is to identify and remove persistently infected (PI) cattle.

This can be done cost-effectively by testing ear punch samples collected by farmers, as part of the official calf identity tagging process.