Sow Breeding Welfare: Gestation Crate Transitions and Alternatives

Gestation crates for breeding sows are among the most welfare-damaging practices in commercial pig farming, and the transition to group housing represents a critical industry welfare advance.

Key Facts

Gestation crates measure approximately 0.6 by 2 metres — too small for sows to turn around for the full 16-week gestation
Over 60% of US sows are still housed in gestation crates, compared to near-zero in the EU, UK, and Australia
Group gestation housing enables sows to socialise, exercise, and express natural behaviour throughout pregnancy
Stereotypic bar-biting and repetitive head movements are significantly higher in crate-housed than group-housed sows
Major US food companies including Walmart, McDonald's, and Costco have committed to sourcing crate-free pork

Welfare Considerations

Gestation crate welfare impacts are among the most thoroughly documented in farm animal science. Sows confined in crates for extended gestation periods cannot perform basic natural behaviours including turning, social interaction, or foraging. The resulting chronic frustration produces welfare indicators including stereotypy, elevated cortisol, and reduced immune function. Group housing with electronic sow feeding systems provides good individual nutrition management while enabling normal behaviour expression. Corporate commitments to crate-free sourcing are driving faster industry change than regulatory timelines in some markets.

What You Can Do

Choose pork products with Certified Humane or RSPCA Assured certification that prohibit gestation crates
Support corporate campaigns pushing major food companies to honour and accelerate crate-free commitments
Advocate for state and federal gestation crate bans to eliminate this practice across US pork production