The transition away from individual gestation crates toward group housing represents a significant welfare advance for breeding sows, though the transition requires careful management to realize welfare benefits.
The transition from gestation crates to group housing is a genuine welfare improvement when implemented well, but the assumption that any group housing automatically improves welfare oversimplifies a complex management challenge. Sows in poorly managed group systems experience chronic stress from competitive feeding, social aggression, and inability to retreat from dominant individuals. Welfare-centered group housing requires adequate space, appropriate group sizes, effective feeding systems, and stockperson skill in recognizing and managing social problems. Consumer pressure for crate-free pork must be accompanied by demand for management standards that ensure group housing delivers its welfare potential.