Laying Hen Enrichment: Evidence for What Actually Works

Enriched cage and cage-free systems provide behavioral opportunities for hens, but not all enrichment features equally improve welfare.

Key Facts

The five most important behavioral needs for laying hens are: nesting, perching, dust-bathing, foraging, and scratching
Perches reduce keel bone fractures by strengthening bone density through mechanical loading
Nest boxes are used intensely in the 2 hours before and after peak lay — inadequate provision causes queue stress
Dust-bathing is a comfort behavior that hens perform daily when given loose substrate, even in absence of dust
Cage-free systems provide more behavioral freedom but have higher rates of pecking injury and disease
Research shows that dustbaths, perches, and nest boxes are the highest-priority enrichments; foraging substrate adds further value

Welfare Considerations

Behavioral enrichment for laying hens is not a binary question of caged versus cage-free, but a detailed science of which features most effectively meet motivational needs. Nest boxes prevent the severe frustration of pre-laying motivation being blocked — a hens motivation to lay in a nest box is one of the strongest drives in avian behavior. Perches address bone density and roosting motivation. Dust-bathing substrate reduces feather pecking and provides comfort behavior. Foraging material occupies time and reduces boredom. Systems that provide all five key features consistently produce the lowest rates of abnormal behavior and the best welfare outcomes regardless of overall housing type.

What You Can Do

Choose egg products from systems verified to provide nesting, perching, and foraging opportunities
Support welfare certification standards that assess behavioral opportunity, not just space alone
Advocate for cage-free transition timelines that include standards for enrichment quality within cage-free systems
Donate to research identifying optimal enrichment configurations for large commercial cage-free flocks