Poultry Welfare

Broiler Genetics and Welfare: The Growth Rate Problem

Modern broiler chickens are bred for rapid growth rates that cause serious health and welfare problems, with alternatives now proven viable.

Key Facts

Modern broilers reach slaughter weight in 35-42 days compared to 84 days historically
Leg problems affect up to 30% of commercial broilers due to rapid growth
Heart failure and ascites are linked to the metabolic demands of fast growth
Slower-growing breeds show dramatically better leg health and activity levels
Major food companies including Marks and Spencer have committed to slower-growing breeds

Welfare Considerations

The selection of broiler chickens for maximum growth rate has created animals whose bodies cannot sustain their own weight. Chronic lameness, cardiovascular failure, and metabolic disorders are routine in commercial flocks. Slower-growing breeds demonstrate that commercially viable chicken production is possible without these welfare compromises.

What You Can Do

Choose chicken products from slower-growing breed schemes
Ask food companies and restaurants about their broiler welfare commitments
Support the Better Chicken Commitment corporate campaign
Reduce chicken consumption or explore plant-based alternatives