Farm Animal Welfare

Pig Welfare and Pain Recognition: Advanced Assessment

Advanced pain recognition in pigs uses validated tools including grimace scales and biomarkers. These enable more accurate identification of pain states and earlier welfare intervention.

Key Facts

The Piglet Grimace Scale was validated in 2016 for assessing pain in young pigs
Facial action units including ear position, orbital tension and nose bulge indicate pain level
Biomarkers including substance P and cortisol correlate with pain states in pigs
Automated facial recognition systems for pig pain are under development
Training staff to use validated pain assessment tools reduces subjectivity in welfare decisions

Welfare Considerations

Advanced pain recognition enables the welfare benefits of early intervention. As tools become validated and accessible, pain assessment becomes an objective component of pig welfare management rather than a matter of judgement alone.

What You Can Do

Advocate for pain assessment training requirements in pig welfare certification
Support research into automated pig pain recognition systems for farm use
Choose welfare-certified pork from farms with documented pain assessment protocols