Transition Cow Welfare: The Critical Periparturient Period
The transition period around calving is the highest welfare-risk time in a dairy cow's year, requiring targeted management to prevent metabolic diseases and support welfare.
Key Facts
- The transition period spans 3 weeks before to 3 weeks after calving
- Metabolic diseases including milk fever, ketosis, and retained fetal membranes peak in this period
- Negative energy balance is normal but excessive deficit causes ketosis and welfare compromise
- Immune function is suppressed peripartum, increasing mastitis and other infection risk
- Transition cow management quality predicts health and welfare outcomes for the entire lactation
Welfare Considerations
Transition cow welfare management requires anticipating and preventing the cascade of metabolic and infectious diseases that arise from the physiological stress of parturition and lactation onset. Cows in transition experience negative energy balance, immune suppression, and hypocalcemia that must be managed through appropriate nutrition, monitoring, and veterinary protocols. Ketosis causes anorexia and systemic illness; subclinical ketosis reduces welfare and productivity without obvious clinical signs. Dry cow nutrition programs that prevent excessive body condition loss while avoiding over-conditioning prevent many transition disease welfare problems.
What You Can Do
- Monitor transition cows daily for signs of ketosis, milk fever, and mastitis
- Implement targeted dry cow nutrition programs guided by body condition scoring
- Test fresh-calved cows for subclinical ketosis using cow-side ketone testing
- Ensure transition cows have appropriate space and social conditions around calving
- Work with your vet to review and improve transition cow health protocols annually