Dust Bathing in Laying Hens | Animal Welfare Hub

Dust bathing is a highly motivated behaviour in laying hens that is chronically frustrated in cage and inadequately enriched systems.

Key Facts

Dust bathing is performed for skin and plumage maintenance and is motivationally essential
Hens will dust bathe in any available substrate including wire cage floors if no litter is available
The frustration of dust bathing motivation correlates with elevated stress indicators
Barn and free-range systems provide better dust bathing opportunities than enriched cages
Even hens raised without litter perform vacuum dust bathing, showing the drive is innate

Welfare Considerations

The motivational drive to dust bathe in hens is so strong that they perform the behaviour even on wire floors where it provides no functional benefit — so-called vacuum dust bathing. This demonstrates the internal motivation exists independently of any practical function, meaning its frustration causes genuine suffering. Hens in systems with adequate litter substrates show reduced stress and more complete behavioural repertoires. Dust bathing is one of the clearest examples of welfare-relevant behaviour in commercial poultry.

What You Can Do

Choose eggs from hens with access to litter or outdoor areas for dust bathing
Advocate for litter requirements in all laying hen welfare standards
Support research into minimum litter provision for welfare outcome
Back welfare schemes that assess whether hens are actually using enrichment
Support farmer training on the importance of litter quality and availability