Enrichment provision for pigs is now a legal requirement in EU and UK farming, but the quality and effectiveness of enrichment varies enormously. Understanding what constitutes genuine enrichment is essential for welfare improvement.
Pig enrichment welfare science has clarified what actually satisfies pigs' behavioral needs versus what merely meets regulatory requirements on paper. The EU's enrichment requirement specifies materials 'to investigate and manipulate' - but if provided materials do not satisfy rooting, foraging, and chewing motivation, the welfare goal is unmet even if the legal minimum is technically complied with. Providing a suspended chain for 20 pigs in a barren pen meets the letter but not the spirit of enrichment regulation. Genuine enrichment provision requires substrate quantity, novelty rotation, destructibility, and ideally task complexity. Farms with effective enrichment programs have demonstrably lower tail-biting rates and antibiotic use.