BVD Control in Dairy Herds: How to Find & Remove PI Animals
Bovine Viral Diarrhoea (BVD) is estimated to cost New Zealand's dairy and beef industries more than $150 million every year, yet many of the tools needed to control it are already well understood. After more than 25 years in veterinary practice, Andrew Weir, animal health technical specialist at LIC, has seen firsthand the impact BVD can have on herd performance. We asked him about the role of persistently infected (PI) animals and the practical steps farmers can take to reduce their risk.
