European law requires environmental enrichment for pigs, but compliance varies widely and enforcement gaps leave millions of pigs in inadequate conditions.
Environmental enrichment for pigs is legally mandated but practically inconsistent. Farms providing straw or rooting substrate show lower rates of tail biting, aggression, and stereotypy. Farms providing only hanging chains — technically compliant but behaviourally inadequate — have higher welfare problems. The gap between legal minimum and meaningful enrichment is significant, and enforcement varies enormously across Member States and UK regions.