Environmental Enrichment for Laying Hens: What the Evidence Shows

Environmental enrichment for laying hens has moved from optional add-on to core welfare requirement, with strong evidence for specific enrichment types.

Key Facts

Hens are highly motivated to perform foraging, dust bathing, perching, and nesting behaviours
Perches used at night reduce foot pad problems and improve bone strength in laying hens
Nest boxes must be dark, secluded, and available before the hen is ready to lay to meet nesting motivation
Dust bathing in friable substrate reduces skin parasites and stereotypic vacuum dust bathing behaviour
Laying hens given access to outdoor ranges use them most intensively in the morning after lay

Welfare Considerations

The science of laying hen enrichment has matured considerably. Research demonstrates that perches must be at appropriate heights to be used and that wire flooring without pad prevents normal perching. Nesting motivation is so strong that hens prevented from nesting show behavioural and physiological stress indicators. Dust bathing in litter versus wire or rubber substrates shows clear preference for friable material that allows complete dust bathing sequences. Outdoor range use varies enormously between individuals and flocks and is influenced by ranging management, cover provision, and weather. Enrichment that genuinely satisfies motivation requires both the provision of appropriate resources and management that ensures access.

What You Can Do

Choose free-range or organic eggs from farms with demonstrated outdoor access and enrichment provision
Support regulatory requirements for minimum perch length per hen in all housing systems
Advocate for nest box access from before the age of first lay in commercial systems
Learn how to interpret welfare assurance logos and what they require of egg producers
Support research into optimal enrichment provision across different laying hen housing systems