Pig Group Housing Transition Benefits

How transitioning from individual stalls to group housing improves sow welfare and what the evidence shows.

Key Facts

The EU banned individual gestation stalls for most of the gestation period in 2013, requiring group housing
Individual gestation stalls prevent sows from turning around, lying down comfortably, or expressing any natural behavior
Group housing allows sows to exercise, forage, and engage in social behavior during gestation
Aggression at mixing is the primary management challenge in group housing systems
Electronic sow feeding systems allow individual feeding in group environments, managing competition at feeders
Studies consistently show better welfare outcomes in group housing, including lower stereotypy rates and better leg health

Welfare Considerations

The transition from individual gestation stalls to group housing represents one of the most significant structural welfare improvements achieved through legislation in the pig industry. Group-housed sows can exercise, socialize, and express natural behavioral repertoire that is entirely suppressed in stalls. The management challenges of group housing — primarily aggression at mixing and feeding competition — are solvable with appropriate facility design and management skills. The welfare improvements are well-documented and consistent across studies, making opposition to group housing difficult to justify on animal welfare grounds.

What You Can Do

Choose pork products from farms that have fully transitioned to group gestation housing
Support campaigns for global adoption of gestation stall bans following the EU model
Advocate for state and national legislation phasing out individual sow confinement
Recognize and support producers who have made the investment in group housing systems