Respiratory disease in calves, lambs, and piglets is one of the most significant welfare and economic problems in livestock farming.
Respiratory disease causes significant welfare harm through fever, pain, breathlessness, and debilitation. Young animals are particularly vulnerable due to immature immune systems and the stress of early life management. Prevention through adequate colostrum, appropriate housing with good ventilation, vaccination, and minimal stress during early life is far more welfare-positive than managing established disease.