Farm Animal Welfare

Farm Pig: Slaughter Welfare Standards

Slaughter is the final welfare point in pig production, and the quality of stunning, handling, and killing methods determines whether pigs die humanely.

Key Facts

UK regulations require pigs to be stunned before killing using electrical or CO2 gas methods
CO2 stunning is the most common commercial method but CO2 causes distress during induction
Controlled atmosphere stunning using argon or nitrogen is less aversive than CO2
Electrical stunning must achieve immediate insensibility - poor electrode placement causes pain
CCTV in UK slaughterhouses is mandatory and footage must be reviewed by official vets

Welfare Considerations

Slaughter is a non-negotiable welfare moment - effective, immediate stunning that renders pigs insensible before killing is a legal and ethical requirement. CO2 stunning, while effective, causes a distressing induction period during which pigs are conscious and distressed. High welfare alternatives exist but require investment. CCTV monitoring and official veterinary oversight provide some welfare assurance but cannot replace good practice.

What You Can Do

Support higher welfare slaughter systems that use argon or nitrogen CAS
Advocate for reduced CO2 concentration approaches that minimise induction distress
Support mandatory independent CCTV monitoring at all slaughter plants
Choose pork from producers that can verify their slaughter welfare standards
Learn about slaughter welfare as an important component of overall pig welfare