The average dairy cow in high-producing modern herds is culled after 2-3 lactations — a fraction of her natural lifespan — driven by lameness, reproductive failure, and mastitis that reflect systemic welfare failures in production systems.
The short productive lives of modern dairy cows are not an incidental feature of dairy farming but a consequence of management systems calibrated for maximum short-term yield rather than animal longevity and wellbeing. Lameness causes chronic pain with every step — and affected cows spend months in significant discomfort before culling removes them from the herd. Metabolic disease from the extreme nutritional demands of peak lactation causes both acute and chronic suffering. These are not unavoidable consequences of dairy farming but welfare failures that are addressable through changes in genetics, management, and production targets. The welfare case for extending cow longevity is compelling, and the production and environmental cases align — creating an unusual opportunity where welfare improvement is simultaneously good business.