Foraging is one of the most fundamental behavioural needs of pigs. Providing enrichment that allows pigs to root, search, and manipulate materials is essential for psychological wellbeing and dramatically reduces harmful redirected behaviours.
Foraging deprivation causes persistent psychological frustration in pigs. When they cannot root and explore, they redirect this drive toward pen-mates — biting tails, ears, and flanks. This causes pain and injury to victims and distress throughout the group. The deprivation itself also generates chronic frustration and stress measurable through cortisol and behaviour indicators. Providing effective foraging enrichment — loose, abundant, renewable, and ideally edible — is one of the highest welfare-to-cost ratio interventions in pig farming. It addresses the root cause of tail biting rather than treating the symptom through docking, and it improves the daily lived experience of an intelligent, highly motivated animal.