Furnished (enriched) cages provide perches, nest boxes and scratch areas compared to conventional battery cages, but remain controversial as a welfare compromise compared to cage-free systems.
Furnished cages improve on battery cage welfare by providing minimal access to nesting, perching and scratch behaviours. However, space allowances remain far below what hens require to perform natural behaviour fully. Bone strength, feather condition and the ability to avoid aggressive pen-mates all remain compromised relative to cage-free systems.