On America’s large dairy farms, milking is a vast operation, and the potential for disease transmission is worrying, health experts say. On America’s large dairy farms, milking is a vast operation, ...

With their pre-dawn milking done, about 80 cows ramble into the dewy pastures of the Paris Family Farm in Belleville, Wisconsin, to graze. “This is a much better sound than turning on a tractor,” says ...