Farrowing crates confine sows during birth and nursing, preventing them from moving freely. Reform efforts seek to balance sow welfare with practical piglet protection in ways that improve outcomes for both.
Farrowing crates impose severe movement restriction on sows during a naturally active and behaviorally complex period. Sows in crates cannot root, nest-build, or move freely — behaviors they are strongly motivated to perform before and after birth. The piglet crushing argument for crates has merit — crushing rates are higher in poorly designed loose systems — but good loose farrowing system design can achieve comparable piglet survival while dramatically improving sow welfare. The Swedish example shows this is operationally feasible.