Modern dairy cows are culled far earlier than their natural lifespan due to production pressures. Improving dairy cow longevity is both a welfare goal and an indicator of sustainable, humane farming.
Dairy cow longevity is a powerful indicator of welfare conditions within a farming system. Short productive lives reflect high disease prevalence, inadequate management, and genetic selection focused on production traits at the expense of health and robustness. Lameness affects 25% of dairy cows at any given time and is the leading welfare problem and culling cause in the sector. Mastitis — udder infection — affects 30-40% of cows annually and causes acute pain that is frequently inadequately treated. Reproductive disorders linked to the extreme metabolic demands of high milk production create a cycle of disease that shortens productive life. Systems that prioritize cow health and longevity — lower-production more robust breeds, better lameness management, extended grazing access, body condition monitoring — achieve both better welfare and comparable lifetime productivity. Longevity goals aligned with welfare improvement provide economic incentives that can drive industry change without requiring welfare legislation.