Farm Animal Welfare

Pig Immunocastration Welfare Benefits

Immunocastration uses vaccination to temporarily suppress boar taint without surgical castration. This approach eliminates the pain of surgical castration while achieving equivalent product quality outcomes.

Key Facts

Boar taint is caused by androstenone and skatole accumulation in boar fat
Surgical castration without anaesthesia causes acute pain and is increasingly banned in Europe
Immunocastration vaccine Improvac temporarily suppresses testicular function when given twice
Immunocastrated males retain better feed efficiency and growth than surgically castrated pigs
Immunocastration is legal and used in most EU countries, Australia, and many other markets

Welfare Considerations

Immunocastration eliminates the acute pain of surgical castration while achieving equivalent boar taint control outcomes. This represents a welfare advance of enormous scale given the hundreds of millions of pigs castrated globally each year. Transitioning from surgical to immunological castration is one of the most impactful available welfare improvements for the global pig industry.

What You Can Do

Support regulatory transitions from surgical to immunological castration
Advocate for immunocastration acceptance across all major pig meat markets
Choose pork from producers using immunocastration rather than surgical castration