Gestation crates confine pregnant sows in spaces too small to turn around. Global progress on phase-out represents one of the most significant farm welfare advances of recent decades.
Gestation crates prevent sows from performing virtually any natural behavior — they cannot turn around, root, explore, or exercise for the majority of their lives. The behavioral deprivation is measurable in stereotypic bar-biting and psychological indicators of chronic frustration. The global trend toward phase-out reflects both ethical recognition of this suffering and demonstrated technical feasibility of alternatives. Progress has been real but implementation timelines remain extended in many jurisdictions.