Livestock

Scientific Evidence for Laying Hen Enrichment

Research into enrichment effectiveness for laying hens has produced robust evidence for the welfare benefits of specific provision, guiding best practice in commercial production.

Key Facts

Perch use is strongly motivated in hens and reduces leg bone fracture rates significantly
Nest box provision and use is a fundamental welfare requirement for laying hens
Dust bathing is a highly motivated behaviour satisfied poorly by artificial substrates
Range provision in free-range systems satisfies multiple natural behaviour motivations simultaneously
Foraging substrate in aviary and barn systems reduces feather pecking by providing alternative outlets

Welfare Considerations

The evidence base for laying hen enrichment is now substantial, showing that perches, nest boxes, foraging substrate, and outdoor access each improve specific welfare outcomes. The challenge is ensuring that enrichment is positioned, designed, and maintained to be actually used by significant proportions of the flock. Monitoring enrichment use rather than just provision allows farms to assess whether their enrichment is achieving welfare benefits.

What You Can Do

Support egg certification schemes with specific enrichment provision and use requirements
Choose eggs from systems with evidence-based enrichment rather than just minimum standards
Advocate for enrichment use monitoring requirements in laying hen welfare audits
Support research into optimal enrichment design for different housing systems
Encourage egg producers to assess and report on enrichment effectiveness