Adequate colostrum intake in the first hours of life is the single most important factor determining calf health and welfare, yet management failures commonly leave calves without this critical protection.
Colostrum failure is a foundational welfare problem — calves deprived of adequate immune transfer are constitutionally vulnerable to disease throughout their early lives. Scours and pneumonia, the leading causes of pre-weaning calf mortality, are dramatically more common in passively transfer-failed calves. In dairy systems where calves are separated from mothers shortly after birth, ensuring adequate colostrum intake requires active human management. Without protocols requiring timely colostrum administration, measurement of colostrum quality, and monitoring of passive transfer success via blood samples, large proportions of calves may begin life immunologically defenseless. This is preventable welfare harm — the knowledge, tools, and management practices to ensure adequate colostrum intake exist and are cost-effective when weighed against disease treatment costs.