Broiler chickens spend their short lives (typically 5-7 weeks) in barns that are often devoid of stimulation. Environmental enrichment — providing structures, substrates, and opportunities for natural behaviour — can significantly improve welfare without necessarily compromising productivity.
Broilers, like all chickens, have behavioural needs for dust-bathing, foraging, perching, and exploration. Commercial environments typically frustrate these needs. Research consistently shows that given the opportunity, broilers choose to use enrichment items and show behavioural indicators of positive welfare when doing so. Frustration of natural behaviour is associated with apathy, reduced activity, and poor outcomes.
Perches allow chickens to express natural roosting behaviour and encourage activity, which benefits leg health. Research shows birds with perch access walk more, have lower gait scores, and show lower levels of hock burn. Perch design matters: low perches (5-8 cm high) are most accessible for heavy broilers; elevated perches are rarely used by slow-growing breeds.
Good litter quality is essential for dust-bathing and foraging behaviour. Broilers in good litter show more behavioural activity, less boredom behaviour, and better foot health. Litter management (moisture control, turning) maintains enrichment value as well as reducing contact dermatitis (hock burn, foot pad dermatitis).
Pecking blocks (compressed grain or mineral blocks), hanging objects, straw bales, and scatter-feeding encourage foraging. These reduce redirected pecking behaviour and provide cognitive stimulation. Hanging CDs, chains, or coloured objects maintain novelty and investigation in the early weeks of the crop.
Free-range systems provide the richest enrichment environment: vegetation, soil, insects, space for running. Use of outdoor range by broilers depends heavily on cover availability, distance from pop holes, weather, and genetics. Providing perimeter shelters and shade trees close to pop holes significantly increases range use and welfare outcomes.
Appropriate lighting programmes support the natural activity patterns of broilers. Research supports 6 hours dark/18 hours light minimum with gradual dawn/dusk dimming to allow behavioural synchronisation. Coloured lighting (blue-green wavelengths) can reduce fearfulness and improve activity levels.
The Better Chicken Commitment (BCC/ECC) and RSPCA Assured standards require enrichment provisions including perches, raised areas, and natural light. These standards reflect the scientific evidence that enriched environments meaningfully improve broiler welfare.