Farm Animal Welfare

Pig Boar Taint and Immunocastration Welfare

Boar taint in male pig meat is managed through surgical castration, immunocastration or non-castration with taint testing.

Key Facts

Boar taint is caused by androstenone and skatole compounds in entire male pig carcasses
Surgical castration is the most common prevention method but causes significant pain without anaesthesia
Immunocastration (Improvac) involves vaccination that temporarily suppresses gonadal function
Immunocastrated pigs show improved welfare compared to surgically castrated pigs
Electronic nose taint detection at slaughter enables entire male production without castration

Welfare Considerations

Surgical castration of piglets without anaesthesia causes preventable pain on an enormous scale. Both immunocastration and entire male production with taint detection represent welfare-superior alternatives that industry should be encouraged to adopt.

What You Can Do

Support campaigns for mandatory pain relief for surgical castration or transition to alternatives
Advocate for industry adoption of immunocastration as a welfare-superior alternative
Choose pork from producers using immunocastration or committed to transition away from surgical castration