Poultry Broiler Breast Blister Welfare

Breast blisters are skin lesions caused by chronic contact with litter in fast-growing broiler chickens, indicating systemic welfare problems in intensive production.

Key Facts

Breast blisters affect up to 30% of broilers in some commercial flocks
They develop when birds spend excessive time resting due to leg disorders and obesity
Poor litter quality with high moisture dramatically increases blister prevalence
Fast-growing breeds developed for maximum breast meat yield are most severely affected
The EU Broiler Directive requires monitoring of footpad dermatitis and hock burns as welfare indicators

Welfare Considerations

Breast blisters are both a welfare indicator and a welfare problem in their own right. Their high prevalence signals that a significant proportion of broiler chickens spend so much time sitting on damp litter that their skin breaks down - indicating impaired mobility, discomfort, and inability to engage in normal behavioral repertoire. The underlying cause is often the inability of ultra-fast-growing breeds to support their own weight. Welfare improvement requires addressing selective breeding practices, stocking density, and litter management simultaneously.

What You Can Do

Choose chicken products from slower-growing breeds certified under higher welfare standards
Support Global Animal Partnership level 3+ or Certified Humane standards that address breed welfare
Advocate for breed reform away from breeds with documented high rates of leg and skin disorders
Reduce chicken consumption or choose plant-based alternatives to lower demand for intensive production
Contact retailers about their broiler welfare policies and support those committing to better breed standards