Rooting is a fundamental behavioural need in pigs, and the provision of rooting materials in commercial housing significantly reduces redirected behaviours, tail biting, and indicators of frustration and boredom.
Rooting enrichment is one of the clearest examples of a welfare intervention that is well-evidenced, relatively low-cost, and widely under-implemented. The science is unambiguous: pigs deprived of rooting opportunities develop frustration, redirected oral behaviours, and tail biting that causes injury and suffering. Providing substrates for rooting does not require free-range or extensive systems — even in indoor intensive housing, materials like straw racks or manipulable hanging objects significantly improve welfare. The persistent gap between evidence and practice reflects industry inertia, enforcement failure, and inadequate consumer pressure for compliance. Tail docking as a management response to tail biting without addressing its root cause — enrichment failure — is a clear example of treating symptoms rather than causes.