How pig farms can transition from gestation crates to group housing while maintaining sow welfare.
The transition from gestation crate to group sow housing is one of the most consequential welfare improvements available in pig farming, but its success depends on good management. Group-housed sows can engage in natural social behavior, exercise, and exploratory activity that crates entirely deny — but they also face competition and aggression risks that require mitigation. Electronic sow feeding systems, appropriate group sizes, generous space allowances, and enrichment provision are the building blocks of successful group housing. Farms that transition without adequate planning sometimes experience welfare problems that opponents of crate bans cite as evidence against group housing, making the quality of transition planning a welfare issue in itself.