Comparing Welfare Indicators in Laying Hen Systems

Different laying hen housing systems — cages, barn, free-range, and organic — produce different welfare outcomes. A science-based comparison reveals trade-offs and areas for improvement.

Key Facts

Enriched cages eliminate many natural behaviours including dust bathing, perching, and foraging
Cage-free systems allow more natural behaviour but have higher rates of disease, injurious pecking, and keel fractures
Free-range systems provide outdoor access but welfare depends heavily on range quality and stocking density
Mortality rates are often higher in cage-free systems due to disease spread and injurious pecking
Bone strength is generally better in cage-free systems due to exercise, despite higher fracture rates from falls
The EU Farm to Fork strategy aims to phase out enriched cages by 2027

Welfare Considerations

No current hen housing system is without welfare costs. Enriched cages severely restrict natural behaviour, causing frustration and boredom. Cage-free systems unlock important behaviours but introduce new risks from disease, cannibalism, and falls. The welfare comparison is not a simple hierarchy — it depends on how well each system is managed. A well-managed free-range system with high range usage, low stocking density, and good disease control may provide excellent welfare, while a poorly managed one may not. Ongoing research focuses on optimising cage-free systems rather than accepting high mortality as inevitable.

What You Can Do

Look beyond the label — ask producers about stocking density, range quality, and monitoring protocols
Support egg producers who participate in welfare outcome monitoring and publish their results
Advocate for mandatory on-farm welfare assessment that covers all housing systems including cage-free
Consider reducing egg consumption or switching to plant-based alternatives
Support research into keel bone fracture reduction and disease management in cage-free systems