How long cattle live in production systems reflects the accumulated welfare costs of their management. Longevity is increasingly recognized as a key welfare outcome measure in both beef and dairy systems.
The productive life of a dairy or beef cow is one of the most integrative welfare indicators available because it reflects the cumulative impact of housing, nutrition, disease, pain management, and stress throughout an animal lifetime. A system that consistently culls cows in their third or fourth year of life due to lameness, mastitis, or reproductive failure is a system with systemic welfare problems even if individual animals appear acceptable on any single farm visit. Tracking and rewarding longevity through certification schemes creates aligned incentives: producers who improve welfare reduce culling rates and associated replacement costs while also achieving better welfare outcomes for individual animals. Longevity as a metric captures welfare harms that are invisible in cross-sectional assessments.