The global movement away from conventional battery cages for laying hens represents one of the largest animal welfare improvements in history, but progress is uneven across regions.
Battery cage housing prevents hens from standing fully upright, spreading wings, nesting, perching, or dust-bathing for their entire productive lives. These severe behavioral restrictions cause chronic frustration and musculoskeletal problems. The global transition to cage-free systems, while imperfect, represents meaningful welfare improvement for billions of birds.