Horse Breathing Welfare: Heaves Management

Comprehensive management strategies for horses with severe equine asthma and how to maintain good welfare despite this chronic condition.

Key Facts

Severe equine asthma (heaves) causes visible abdominal effort at rest and a characteristic "heave line" from hypertrophied abdominal muscles
Horses with heaves may experience significant hypoxia during exercise, causing genuine distress
Antigen avoidance — eliminating dust and mould exposure — is more effective than medication alone
Systemic corticosteroids provide rapid improvement but have long-term health implications with extended use
Aerosolised bronchodilators and corticosteroids administered via inhaler reduce systemic side effects significantly

Welfare Considerations

Severe equine asthma causes continuous respiratory difficulty that affects quality of life every moment of every day, not just during exercise. A horse with heaves experiences the physical sensation of breathing against resistance with every breath — comparable to the experience of severe human asthma. This is genuine, ongoing suffering that is often undertreated because it develops gradually and horses adapt to reduced exercise tolerance rather than showing acute distress. Comprehensive management — combining aggressive antigen avoidance with appropriate medication using the best available delivery system — dramatically improves welfare. The foundation of good management is environmental: eliminating the triggers is always more effective than medicating against their effects.

What You Can Do

Commit to the environmental changes that eliminate exposure to dust and mould — these are the primary drivers
Switch to steamed or soaked hay and low-dust bedding before pursuing medication as the first response
Discuss aerosolised medication delivery with your vet — inhaler devices for horses allow targeted pulmonary treatment
Maximise turnout regardless of weather, as outdoor air is invariably better than even a well-managed stable environment
Work with a vet experienced in equine respiratory disease to develop a comprehensive management plan rather than only managing symptoms