Providing environmental enrichment in broiler chicken sheds reduces lameness, stereotypic behaviour, and inactivity while encouraging natural behaviours that are fundamental to chicken welfare.
Broiler chicken welfare has historically been poor because selective breeding for rapid growth has outpaced the capacity of birds to support their own weight comfortably. Enrichment cannot fully compensate for genetic welfare problems, but it makes a measurable difference to the quality of life of billions of chickens annually. Simple interventions — straw bales, perches, pecking objects, natural light — enable chickens to express foraging, perching, and exploratory behaviours that are fundamental to their nature. Welfare standards that mandate enrichment represent a meaningful step toward treating chickens as sentient animals rather than meat production units.