Poultry Perch Design and Laying Hen Welfare

Perch design significantly influences laying hen welfare, affecting bone strength, foot health, sleep quality, and the expression of natural roosting behaviour.

Key Facts

Hens have a strong motivation to perch, especially at night — deprivation causes chronic frustration
Round perches (45mm diameter) cause fewer foot lesions than flat or sharp-edged alternatives
Adequate perch space (at least 15cm per bird) prevents competition and injurious pecking
Hens on good-quality perches show up to 25% better keel bone strength than cage-housed birds
Perch height and spacing affect how easily hens navigate between tiers in aviary systems

Welfare Considerations

Perch access is a fundamental welfare need for laying hens rooted in evolutionary roosting behaviour. Poor perch design — wrong diameter, inappropriate material, inadequate spacing — converts a welfare benefit into a welfare hazard through foot sores, breast blisters, and aggression. Plastic-coated round perches or natural wood of suitable diameter provide the best outcomes. Perch heights should allow hens to jump comfortably between levels without injury. In aviary systems, litter access below and perch access above should be simultaneously available. Farm assurance schemes should specify perch design standards, not just provision.

What You Can Do

Choose eggs from farms with detailed welfare specifications including perch design standards
Support research into optimal aviary design for hen welfare
Advocate for perch quality (not just presence) in laying hen welfare legislation