The farrowing crate — confining sows for 4-6 weeks around birth — prevents sow-caused piglet crushing but restricts natural maternal behaviour. Alternative systems including loose farrowing pens, arena systems, and temporary confinement represent the cutting edge of welfare-positive farrowing design in 2026.
Farrowing crate confinement causes chronic frustration and prevents natural nesting behaviour — one of the most strongly motivated behaviours in sows. Sows given access to nesting material show motivated nest-building for 12+ hours before farrowing; crated sows cannot engage in this behaviour, causing observable distress. The welfare trade-off is real: loose systems without careful design and management have higher piglet mortality. Welfare innovation focuses on systems that provide sow freedom while protecting piglets through anti-crush rails, deep bedding, and close stockmanship. The transition from crates to welfare-positive alternatives is the most significant welfare reform challenge facing intensive pig production.