Environmental enrichment for pigs is legally required in the EU and increasingly mandated in higher welfare standards globally. Understanding what constitutes effective enrichment guides practical implementation on commercial farms.
Pig enrichment science has advanced considerably, providing clear guidance on what actually works versus what merely complies with minimum legal requirements. The critical distinction is between manipulable materials that pigs can chew, root, and explore — which genuinely occupy time and reduce abnormal behaviour — and inert objects that pigs interact with briefly then ignore. Research demonstrates that enrichment quality directly predicts tail biting rates, which in turn reflects overall welfare quality. Practical implementation on commercial farms with slatted flooring requires creative solutions, including hanging forage, paper ropes, and compost blocks, since loose straw is impractical in systems designed for liquid manure management. Regular provision of novel materials maintains interest and welfare benefit over time.