Broiler chickens represent one of the largest animal welfare challenges globally; intensive selection for rapid growth has created severe welfare problems that science is now addressing.
The welfare crisis in broiler production stems primarily from extreme selection pressure for growth rate and breast muscle yield. Fast-growing breeds suffer from cardiovascular problems, skeletal disorders causing chronic pain, and difficulty reaching food and water. Lameness is so prevalent it is considered an industry norm rather than a welfare problem by some producers. Scientific consensus supports breed change as the most impactful single intervention. The Better Chicken Commitment, signed by hundreds of major food companies, represents the most significant corporate broiler welfare commitment in history, though implementation is ongoing.