Farm Animal Welfare

Pain Assessment in Livestock

Accurately identifying pain in farm animals is fundamental to good welfare, but livestock have evolved to mask pain as a survival strategy, making assessment challenging.

Key Facts

Prey animals including cattle, sheep and pigs hide signs of pain to avoid appearing vulnerable
Grimace scales using facial action coding have been validated for mice, rats, rabbits, horses and cattle
Pain management is under-used in livestock veterinary practice compared to companion animals
Surgical procedures such as castration and dehorning are often performed without anaesthesia
The Five Domains model now explicitly incorporates pain as a welfare indicator

Welfare Considerations

Pain in livestock causes reduced feed intake, altered movement, behavioural changes and immune suppression. Under-recognition leads to under-treatment. Species-specific grimace scales, validated behavioural indicators, and prodromal signs help veterinarians and farmers identify pain. Training in pain recognition has been shown to improve detection rates significantly. Policy is shifting toward requiring pain relief for routine procedures.

What You Can Do

Support mandatory pain relief requirements for farm animal procedures in your country
Share information about grimace scales and pain recognition with farming contacts
Choose food products from farms with documented pain management protocols
Advocate for veterinary training programmes emphasising livestock pain assessment
Donate to animal welfare science organisations researching pain recognition tools