Sheep are stoic prey animals that mask pain effectively, making validated assessment tools essential for recognising and treating pain in husbandry procedures, disease, and injury.
Effective pain assessment in sheep is both a welfare imperative and a stockmanship skill that requires active cultivation. The stoic, prey-animal nature of sheep means that obvious pain indicators such as vocalisation and weight-bearing avoidance occur only at high pain intensities, while moderate pain — which may persist for hours or days — is expressed subtly through facial and postural changes that require training to recognise. Validated facial action unit scales provide objective, reproducible pain scoring that can be taught to stockpeople and used to trigger treatment decisions. Routine husbandry procedures including castration, tail docking, and disbudding cause significant acute pain measurable by physiological and behavioural indicators; the welfare standard of care includes provision of local anaesthesia and post-procedure analgesia, and some countries mandate this. Disease conditions including foot rot, which causes persistent lameness and pain affecting millions of sheep globally, are often undertreated in flock settings due to cost, time pressures, and inadequate pain recognition. Improving stockperson training in pain recognition is one of the highest-impact welfare interventions available in sheep farming.