Commercial broiler production has historically focused on minimising costs and maximising growth rates, with limited attention to active welfare enrichment. Evidence-based enrichment programmes now demonstrate meaningful welfare improvement achievable within commercial constraints.
Research consistently demonstrates that broiler chickens given enrichment—pecking objects, perches, straw bales, elevated platforms—show increased activity, reduced fear responses, lower mortality, and better leg health compared to barren controls. Contrary to concerns that activity might reduce growth rates or increase injuries, well-designed enrichment studies often show neutral or positive effects on production parameters alongside welfare improvements.
Providing perches and elevated resting areas addresses broilers' natural inclination to rest at heights. While heavy modern broilers perch less than ancestral birds, provision stimulates activity, improves leg strength, and reduces floor-level ammonia exposure time. Platform height and material affect usage—solid platforms with ramps are used more than round perches by heavy broilers. Low perches (0-30 cm) maximise usage in commercial flocks.
Hanging objects (pecking stones, CDs, food-dispensing toys) stimulate foraging behaviour and reduce fearfulness in broilers. Novel objects should be introduced gradually from an early age to maximise engagement. Straw bales provide foraging, dust-bathing opportunity, and climbing surfaces. Scattered grain on litter stimulates foraging behaviour directly linked to reduced behavioural indicators of poor welfare.
Continuous or near-continuous artificial lighting was historically used to maximise feeding time. Evidence of ocular pathology, skeletal problems, and chronic fatigue from inadequate dark periods led to regulatory requirements for minimum dark periods. Natural or appropriately managed light improves diurnal behaviour rhythms, reduces fearfulness, and supports better skeletal development. Dimmable lighting systems provide gradual dawn/dusk transitions reducing startle responses.
Free-range and organic broiler production allows outdoor access—evidence shows free-range birds use outdoor space, show increased activity, lower fear scores, better leg health, and lower contact dermatitis prevalence compared to indoor systems when outdoor environments are suitable. Shade, appropriate pasture management, and shelter ensure outdoor environments genuinely benefit birds rather than causing cold, wet stress.
Commercial adoption of enrichment requires demonstrating minimal cost burden and positive or neutral production impact. Welfare assurance schemes (RSPCA Assured, Better Chicken Commitment) requiring enrichment create market pull for adoption. Sharing farm-level evidence from early adopters, government support for trial implementation, and inclusive cost-benefit frameworks that incorporate welfare externalities support broader industry transition.