Companion Animals

Horse Respiratory Disease Stable Welfare

Equine asthma (formerly COPD/RAO) causes chronic respiratory distress in stabled horses, driven by dust and mould spores from hay and bedding, and is one of the most common preventable welfare problems.

Key Facts

Equine asthma affects an estimated 14% of horses, with highest rates in older stabled horses
Dust from hay and bedding contains fungal spores that trigger airway inflammation
Soaking hay or using haylage dramatically reduces dust and spore exposure
Rubber matting and shavings bedding have lower dust content than straw
Bronchodilators and corticosteroids provide relief but environmental management is the cure

Welfare Considerations

Equine asthma causes chronic breathing difficulty that is largely preventable through stable management. Environmental dust reduction is the most effective intervention.

What You Can Do

Soak hay or switch to haylage for horses with equine asthma
Use low-dust bedding alternatives and ensure good stable ventilation
Maximise turnout time to reduce stable dust exposure
Work with your vet on appropriate pharmaceutical management alongside environmental changes