Pig Gestation Stalls: Progress and Remaining Challenges

Gestation stalls confining pregnant sows individually for most of their gestation period have been banned or restricted in many jurisdictions — but implementation is slow and millions of sows still spend their pregnancies in severe confinement worldwide.

Key Facts

Gestation stalls are metal-barred enclosures typically 60x200 cm — too small for a sow to turn around — in which pregnant pigs are confined for 16 weeks of their 16-week gestation
The EU banned gestation stalls beyond the first four weeks of pregnancy in 2013, requiring group housing for the remaining gestation period
The US has no federal ban — but over 60% of US pork production has committed to phasing out gestation stalls following corporate campaigns
Sows in gestation stalls develop severe stereotypic bar-biting, rooting against concrete, and repetitive head movements indicative of psychological distress
Group housing improves sow welfare significantly but requires careful management of aggression and feeding competition to avoid creating new welfare problems
Canada implemented a phased elimination timeline requiring complete phase-out by 2024, though compliance monitoring has been inconsistent
China, the world's largest pork producer, has no gestation stall restrictions — making advocacy for Chinese pork welfare standards a major global welfare priority

Welfare Considerations

Gestation stalls represent one of the most intensively studied and widely condemned intensive confinement practices in livestock production. The welfare evidence against them is unequivocal: sows cannot turn around, cannot perform their strong rooting and nest-building motivations, and develop severe stereotypic behaviours that indicate chronic psychological distress. The phase-outs achieved in the EU, and committed to by major US corporations, demonstrate that viable alternatives exist. The remaining challenge is ensuring that group housing is implemented with adequate space, resources, and management rather than simply trading one welfare problem for another.

What You Can Do

Choose pork products certified under schemes that have banned gestation stalls and verified alternatives
Support campaigns targeting US pork producers who have not yet implemented their gestation stall phase-out commitments
Engage with food companies that have made gestation stall phase-out commitments to verify and support implementation
Advocate for federal legislation requiring gestation stall phase-out in countries without existing mandates
Support research into optimal group housing systems that improve sow welfare without increasing aggression
Donate to farm animal welfare organisations specifically working on gestation stall elimination campaigns
Reduce pork consumption and redirect purchases toward producers who have genuinely completed their phase-out