Furnished cages provide more space than battery cages but less than barn or free-range systems. Understanding their welfare trade-offs helps consumers and policymakers make informed decisions.
Furnished cages represent an intermediate welfare position — better than battery cages in allowing some natural behaviour expression, but substantially worse than barn or free-range systems in space, freedom of movement, and environmental complexity. The provision of nesting boxes addresses a highly motivated behaviour — hens will work hard to access a nest before laying — but the small spaces limit the full expression of nesting behaviour. Perches improve leg bone strength compared to battery cages. However, the overall space allowance remains insufficient for comfortable movement, and social complexity in large colony groups creates aggression problems. Welfare science consensus regards furnished cages as a transitional improvement rather than a welfare-adequate endpoint. Full cage-free systems with good management are the evidence-based welfare target.