Dairy organizations offer statement on HPAI in cows Statement from the National Milk Producers Federation (NMPF), the International Dairy Foods Association (IDFA), the U.S. This means affected dairy cows are segregated, as is normal practice with any animal health concern, and their milk does not enter the food supply. As a precaution, dairy farmers are taking important measures to protect their workers. The National Dairy FARM Program (NDFP) offers several valuable biosecurity resources providing dairy farmers with tools to keep their cattle and dairy businesses safe, including:Biosecurity practices guidance is available here. As a result, dairy farmers have taken immediate measures to enhance biosecurity measures in and around dairy farms to keep the food supply safe.