Farm Animals

Hen Housing System Welfare Comparison

Research comparing welfare outcomes across battery cage, enriched cage, barn, and free-range hen housing systems informs policy and consumer choice.

Key Facts

Conventional battery cages are banned in the EU but remain legal in many US states
Each system presents different welfare trade-offs with no clear winner on all metrics
Free-range hens have higher rates of keel bone fractures from perch use
Barn systems have higher rates of pecking and parasites than cage systems

Welfare Considerations

No single hen housing system is superior on all welfare dimensions. Battery cages prevent many natural behaviors but protect from some injuries and disease. Free-range allows more natural behavior but increases injury risk. Understanding these trade-offs allows consumers and policymakers to make informed choices prioritizing the welfare dimensions most important to them.

What You Can Do

Choose eggs certified to standards that include welfare auditing
Support transition away from battery cages as a minimum welfare improvement
Advocate for comprehensive welfare standards that address all relevant dimensions
Support research comparing welfare outcomes across housing systems objectively