Gestation crates — metal stalls that confine pregnant sows for up to 16 weeks — are among the most welfare-compromising practices in industrial pig farming, and their phase-out is one of the most contested campaigns in farm animal welfare.
Gestation crate phase-out represents one of the most significant systemic welfare reforms achieved in the food industry, yet implementation is uneven and many farms in phase-out jurisdictions have received long transition timelines. The welfare case against gestation crates is overwhelming — the inability to turn, exercise, or express any natural behaviour for months causes chronic frustration, lameness, and compromised muscle and bone health. Well-designed group housing achieves equivalent or better sow welfare and is economically viable.