Farm Animal Welfare

Laying Hen Dust Bathing Substrate Quality

Dust bathing substrate quality significantly affects the welfare value of dust bathing for laying hens, with friable materials enabling complete behavioural expression.

Key Facts

Hens require loose, dry substrate of appropriate particle size for effective dust bathing
Sand, peat and diatomaceous earth are more effective dust bath substrates than loose sawdust
Hens with access to good quality substrate perform full bout dust baths more frequently
Litter quality in cage-free systems varies significantly and affects dust bathing opportunity
Wet litter prevents dust bathing and is associated with increased feather pecking

Welfare Considerations

Dust bathing quality is determined by substrate properties as well as its availability. Systems that provide poor-quality or inadequate substrate frustrate the behaviour despite nominal provision. Monitoring litter quality as a welfare indicator ensures the system delivers the intended welfare benefit.

What You Can Do

Support cage-free egg producers with documented litter quality management protocols
Advocate for substrate quality standards in cage-free laying hen certification
Choose eggs from certified higher-welfare producers with regular litter quality auditing