Gestation crates that confine pregnant sows for up to 16 weeks have been banned in several countries but remain widely used.
Gestation crates cause severe welfare harm through extreme confinement that prevents normal movement and social behaviour. Sows unable to walk or turn show increased stereotypic bar-biting behaviour indicating frustration and distress. Muscle wastage occurs in crated sows from lack of exercise. Social isolation in single crates prevents normal pig social behaviour. The welfare evidence against gestation crates is overwhelming and multiple countries have prohibited them.