Replacing farrowing crates with free-farrowing systems is one of the most significant welfare improvements available in pig farming.
Confinement in farrowing crates prevents sows from performing strongly motivated nesting behaviour, causing chronic frustration and stress. Free-farrowing systems enable natural maternal behaviour and significantly improve sow welfare. Piglet mortality from crushing is a genuine concern but can be reduced through pen design featuring escape zones, sloped walls, and adequate space. Farmer training and motivation are key to successful free-farrowing adoption.