Laying Hen Enriched Colony Cage Welfare

Enriched colony cages replaced conventional battery cages in the EU from 2012, but welfare advocates argue they fail to meet hen behavioural needs adequately.

Key Facts

Enriched colony cages provide a minimum 750cm2 per bird plus nest boxes, perches, and scratching areas
The EU ban on conventional battery cages came into force in January 2012
Despite enrichments, hens in colony cages cannot fully extend their wings or perform dust bathing
Perch access and nest box use is competition-limited in large colony groups
Keel bone fractures affect 50-80% of colony cage hens from perch-related impacts
Consumer demand for cage-free eggs has driven major retailer commitments to phase out colony cages

Welfare Considerations

Enriched colony cages represent an improvement over conventional battery cages but fall significantly short of meeting hen behavioural needs. The space provision, while larger than battery cages, still prevents natural wing extension and comfortable dust bathing. Keel bone fractures - causing chronic pain in the majority of colony cage hens - represent a welfare problem that the enriched cage environment cannot prevent. The trajectory of welfare improvement requires transition to cage-free systems, and consumer demand for cage-free eggs is the primary market driver.

What You Can Do

Choose free range, barn, or organic eggs rather than those from enriched colony cage systems
Support retailers and food service companies with cage-free egg sourcing commitments
Advocate for cage-free egg requirements to be extended to all egg-containing processed food products
Support farm animal welfare organisations working on cage-free transition timelines