Research on enrichment for commercial broiler chickens demonstrates that simple environmental additions improve welfare outcomes including activity levels, leg health, and positive behavioural indicators.
Broiler enrichment science has produced robust evidence that even low-cost additions to barren sheds significantly improve welfare outcomes. Elevated platforms provide several welfare benefits simultaneously: lame birds — a major welfare concern in fast-growing breeds — can rest elevated from floor-level competition; other birds use platforms for locomotor activity and exploration; and use of three-dimensional space reduces effective stocking density at floor level. Straw bales placed in sheds are rapidly explored by chickens — scratching, pecking, and dust-bathing in straw satisfies multiple behavioural motivations simultaneously and reduces time-budget indicators of frustration. Pecking blocks extend foraging time and redirect beak-use motivation away from feather-pecking. The commercial case for enrichment is growing: active broilers have better muscle development, and reduced feather-pecking lowers downgrades at slaughter. Even in fast-growing commercial breeds with significant welfare limitations from their genetic background, enrichment measurably improves daily experience and positive welfare indicators.