Farm Animals

Pig Group Housing Transition Welfare

Transitioning sow housing from individual stalls to group systems requires careful management to protect welfare during the transition period.

Key Facts

Group housing of sows improves welfare but requires careful management of mixing aggression
Electronic sow feeding systems allow individual resource allocation in groups
Mixing groups trigger acute aggression as hierarchies are re-established
Established stable groups show dramatically reduced aggression and better welfare
Canada and the EU have phased out individual stall gestation housing for sows

Welfare Considerations

Group housing transition is a critical welfare period requiring management attention. Poorly managed transitions create acute welfare problems from mixing aggression. Well-managed transitions using stable groups, appropriate space, and feeding systems that prevent resource competition result in dramatically better long-term welfare than individual stall housing.

What You Can Do

Support farms completing transition to group housing for sows
Advocate for stable group management standards in group housing regulations
Choose pork from farms using well-managed group housing systems
Support research on optimal group housing management protocols
Engage with gestation stall phase-outs as a welfare success to build on