Farmed Turkey Breast Blisters and Welfare

Breast blisters are a common and painful welfare problem in farmed turkeys, linked to litter quality, stocking density and genetic selection for breast muscle.

Key Facts

Breast blisters are fluid-filled swellings on the keel bone area caused by pressure and friction
Commercial turkey breeds with very large breast muscles have greater contact with litter surfaces
Poor litter quality including wet, caked litter directly causes breast blister development
Stocking density above recommended levels increases blister prevalence
Breast blisters can become infected, causing pain and systemic illness
The condition is more prevalent in males due to larger breast muscle mass
Slaughterhouse condemnation rates for breast blisters indicate farm welfare status
Slower-growing turkey breeds have lower breast blister prevalence

Welfare Considerations

Breast blisters cause chronic discomfort through constant pressure on affected tissue during normal resting. Infected blisters cause acute pain and systemic illness. The condition directly reflects litter quality and stocking density management on individual farms. High blister rates indicate preventable welfare failures. Welfare-positive management includes maintaining dry, friable litter quality through ventilation management and appropriate stocking density, alongside consideration of breed selection that reduces extreme breast muscle development.

What You Can Do

Support turkey welfare standards that include breast blister monitoring at slaughter
Advocate for mandatory reporting of condemnation data linked to farm of origin
Choose turkey products from certified farms with demonstrated litter quality standards
Support breed reform toward slower-growing turkeys with less extreme breast muscle
Engage with retailers about their requirements for turkey welfare data from suppliers