Transitioning breeding sows from individual gestation crates to group housing is one of the most significant welfare improvements possible in pig farming, affecting millions of animals.
Gestation crate confinement is widely considered one of the most severe welfare compromises in commercial pig farming. Sows cannot turn around, express normal movement, or engage in meaningful social behavior. The motivation to move and explore is frustrated for months of each reproductive cycle. Group housing eliminates the physical restriction but requires management expertise to reduce fighting at mixing. Aggression during group formation causes injuries, particularly to subordinate animals. Good group housing design includes escape routes, visual barriers, and adequate feeding space to reduce competition. Electronic sow feeders allow individualized nutrition management while preserving group social access. Consumer and retailer pressure has driven gestation crate elimination commitments from many major food companies.