Average dairy cow productive life has shortened dramatically in intensive systems, with culling at peak productivity rather than natural lifespan causing welfare concerns and representing a significant ethical challenge in modern dairying.
The systematic culling of dairy cows at peak productivity rather than natural old age reflects the economic logic of intensive systems that prioritizes output over individual animal welfare. Cows selected for maximum milk production face chronic metabolic stress, impaired immune function, and reproductive problems that make their lives shorter and more painful than lower-yielding counterparts. Welfare-focused breeding for longevity and health traits alongside production represents an achievable improvement that benefits individual animals and the economics of farms with lower replacement costs.