Farmed Pig Pain Recognition and Management

Recognizing and managing pain in farmed pigs is essential to welfare but remains challenging due to industry practices and assessment limitations.

Key Facts

Pigs have nociceptors and central pain processing comparable to other mammals including primates
Common painful procedures include castration, tail docking, and ear notching without anesthesia
EU law requires anesthesia for surgical castration of pigs over 7 days old
Pain grimace scales developed for pigs allow systematic assessment of facial pain indicators
Post-surgical pain management with NSAIDs reduces cortisol and behavioral pain indicators
Lameness affects up to 20% of breeding sows and is a major source of chronic pain
Injury from aggression and overcrowding are significant sources of pain in intensive systems

Welfare Considerations

Pain management in pig farming has historically been neglected due to cost and the assumption that productive pigs aren't suffering. Research has shown this assumption is wrong - pigs in pain have elevated cortisol, reduced feed intake, and impaired immune function. Routine painful procedures performed without analgesia represent widespread unnecessary suffering. Adoption of pain assessment tools and analgesic protocols is both ethically required and productively beneficial.

What You Can Do

Support campaigns requiring anesthesia and analgesia for all pig procedures including castration
Advocate for adoption of pig pain grimace scales in farm quality assurance programs
Choose pork from certified welfare schemes that prohibit or regulate painful routine procedures
Support research into pig pain pharmacology and practical analgesia protocols for farm use
Encourage veterinarians to prescribe and promote analgesic use in pig procedures
Engage with food companies on requiring pain management practices in their pig supply chains