Welfare Science

Farm Animal Pain Assessment Tools

Validated pain assessment tools are essential for identifying and treating animal pain in farm settings where welfare relies on trained observer recognition.

Key Facts

Pain facial action codes (grimace scales) exist for pigs, sheep, cattle, and horses
The Sheep Pain Facial Action Scale (SPFAS) allows rapid pain assessment in the field
Lameness scoring systems quantify mobility impairment in cattle and pigs
Behavioural indicators of pain include reduced activity, altered posture, and social withdrawal
Training farmers to use pain assessment tools improves treatment response rates

Welfare Considerations

Unrecognised pain is a major welfare problem in farm animals. Validated pain assessment tools enable earlier identification and treatment, reducing the duration and severity of suffering. Training farmers, vets, and assessors in evidence-based pain recognition is one of the highest-leverage welfare investments.

What You Can Do

Advocate for pain assessment training in veterinary and farming education
Support the validation and dissemination of species-specific pain scales
Request pain assessment protocols in farm welfare audit standards