Average dairy cow longevity in intensive systems is declining, with many cows culled after 2-3 lactations. Extending productive life through better health management improves welfare and reduces environmental impact.
Short productive life in dairy cows is both a welfare indicator and a welfare cause. High culling rates reflect the welfare problems (lameness, mastitis, reproductive failure) that drive early culling. Short lives mean that each cow endures the welfare costs of the dairy cycle — repeated pregnancy, calving, and peak lactation stress — without the period of established productivity and reduced stress that older, experienced cows may enjoy. Management systems oriented toward longevity — investing in metabolic health around calving, controlling lameness proactively, reducing mastitis — simultaneously improve individual welfare, herd economics, and environmental sustainability. The welfare case for longevity-oriented dairy management is compelling across multiple dimensions.