The short productive lives of modern dairy cows reflect welfare and sustainability challenges in the industry. Extending cow longevity improves animal welfare while benefiting environmental and economic outcomes.
The short productive lives of dairy cows reflect a systemic optimization for short-term milk yield over cow health and longevity. High-producing breeds experience metabolic demands that cause negative energy balance, immune suppression, and subclinical ketosis — a cascade of physiological stress that compromises welfare and shortens productive life. Farms that prioritize cow comfort, provide outdoor access, use robotic milking that respects individual cow preferences, and breed for longevity alongside productivity see significantly better welfare outcomes and longer-lived animals. Extending cow longevity is simultaneously the most welfare-positive and economically and environmentally optimal strategy for dairy farming.