Enriched colony cages provide some improvements over conventional battery cages but remain significantly inferior to barn and free-range alternatives for hen welfare.
Enriched colony cages represent an improvement over battery cages in providing some behavioral opportunities but still severely restrict natural behavior. The prevalence of keel bone fractures from perch use in confined spaces indicates that even enriched cage design cannot fully meet hen welfare needs at the space allowances permitted. Barn and free-range systems provide more natural environments despite their own management challenges.