Modern dairy cows are culled at a fraction of their natural lifespan. Extending productive longevity through welfare-centred management benefits both animals and farming economics.
Dairy cow longevity is a welfare indicator because short productive lives reflect the cumulative toll of high-output production systems on animal health. Cows culled after two or three lactations have experienced years of metabolic stress, disease risk and physical compromise — and then faced slaughter at a small fraction of their biological potential lifespan. Systems that prioritise cow longevity through lower production targets, improved nutrition, better housing and proactive health management produce cows with measurably better welfare across all dimensions. The economic case for longevity is also strong — replacement heifer costs are avoided and lifetime productivity per cow improves. Welfare and economics align around cow longevity in ways they often do not for other welfare improvements.