Chicken Broiler Fast Growth Welfare

Fast-growing broiler breeds reach slaughter weight in 35-42 days but suffer high rates of leg disorders, heart disease, and chronic pain due to their extreme growth rate.

Key Facts

Modern broilers grow approximately 300 times faster than wild jungle fowl
Leg disorders affect an estimated 25-30% of fast-growing broiler flocks
Ascites (fluid accumulation) and sudden death syndrome are common cardiac problems
Slower-growing breeds live significantly better lives even in the same housing conditions
The Better Chicken Commitment calls for slower-growing breeds in commercial production

Welfare Considerations

The selective breeding of broiler chickens for maximum growth rate has created birds whose bodies struggle to sustain their own weight. Skeletal dysplasia, tibial dyschondroplasia, and angular limb deformities mean that many birds spend significant portions of their lives in pain. Gait scoring studies consistently find high rates of poor mobility in commercial flocks. The welfare gains from switching to slower-growing breeds are among the largest available to the poultry industry without major changes to housing or management systems.

What You Can Do

Choose chicken from farms using slower-growing breeds
Support the Better Chicken Commitment standards
Ask restaurants and retailers about their broiler breed policies
Reduce chicken consumption or choose higher-welfare certified products