Enrichment for commercial pigs is legally required in many jurisdictions but its effectiveness varies dramatically depending on type, novelty, and accessibility.
Pig enrichment research reveals a significant gap between legal compliance and actual welfare improvement. Chains and rubber hoses meet the letter of EU law but fail to prevent tail biting or provide meaningful behavioral opportunity. Effective enrichment must engage the rooting drive that is the behavioral foundation of pig foraging. Straw, soil, and degradable materials that pigs can physically manipulate and consume provide genuine behavioral satisfaction that inanimate suspended objects cannot replicate. The policy challenge is moving regulations from requiring any enrichment to requiring effective enrichment assessed against behavioral outcomes.