Genetic selection in farm animals has driven extraordinary production gains but at significant welfare cost. Welfare-conscious genetics is an emerging priority in livestock breeding.
The genetic selection that drives modern livestock production has created a welfare crisis. Dairy cows selected for extreme milk yield have compromised metabolic health, reduced fertility, and shortened productive lives. Broilers selected for maximum growth rate cannot breathe, walk, or support their own weight without chronic discomfort. The genetic architecture of production traits is often negatively correlated with health and welfare — selecting for one compromises the other. Welfare-conscious genetics seeks to break this correlation by including health, longevity, and welfare traits in selection indices alongside production parameters. This is a long-term investment with significant welfare payoff.