Sheep Pain Scoring and Welfare Assessment

Pain in sheep is frequently under-recognised and under-treated because the species has evolved to mask signs of vulnerability. Validated pain-scoring systems now enable farmers and vets to identify and manage pain more effectively.

Key Facts

The Sheep Pain Facial Action Unit (SPFAU) system identifies pain through orbital tightening, cheek tension, and ear position
Studies show that even brief painful procedures such as castration and tail docking cause detectable facial and behavioural changes
Long-acting non-steroidal anti-inflammatory drugs (NSAIDs) reduce cortisol levels and improve weight gain after routine procedures
Lameness affects 5 to 15 per cent of ewes in many UK flocks, yet fewer than half receive analgesia
Training stockpeople in pain recognition improves treatment uptake and reduces time to intervention

Welfare Considerations

Sheep that suffer chronic unrecognised pain show reduced feed intake, social withdrawal, and impaired reproductive performance. Because they rarely vocalise when in pain, assessment requires behavioural and physiological indicators. Welfare-centred flocks embed pain scoring into health rounds, use pre-emptive analgesia for all elective procedures, and train staff in facial action unit assessment. Regulatory frameworks increasingly require analgesia for castration and tail docking beyond neonatal age, aligning legal standards with evidence-based welfare science.

What You Can Do

Ask your vet to demonstrate facial pain scoring on your flock during health rounds
Ensure all elective procedures such as castration and disbudding include appropriate pre- and post-procedure analgesia
Record pain-related observations in flock health diaries to track welfare trends over time
Support industry bodies developing mandatory analgesia requirements for routine husbandry procedures
Encourage veterinary schools to include sheep pain recognition in core competency training