Extending dairy cow productive life through improved health management and lower production intensity is both a welfare improvement and a sustainability benefit for the dairy industry.
Dairy cow longevity is shaped by decisions made at multiple points across the production system — breeding choices that balance production and robustness, transition cow management that prevents the metabolic disease cascade responsible for early culling, lameness detection and treatment speed, and overall health monitoring quality. Each of these management domains has well-developed best practices that can significantly extend productive life. The welfare trajectory of a dairy cow that lives to 8 or more years in a well-managed system, completing 5-6 lactations and maintaining good body condition throughout, is radically better than the trajectory of a cow culled at 3-4 years following a cycle of metabolic disease, mastitis, and reproductive failure. Investment in longevity is simultaneously welfare investment.