Horse Respiratory Health Monitoring: Welfare Technology Advances

Respiratory disease causes significant welfare harm in horses, and new monitoring technologies are improving early detection and management of conditions from infectious disease to inflammatory airway disease.

Key Facts

Equine asthma (formerly heaves or RAO) affects an estimated 14% of horses in some populations
Subclinical respiratory disease significantly impairs performance and causes chronic discomfort
Tracheal wash cytology remains the gold standard for airway disease diagnosis
Wearable respiratory monitors can now detect abnormal breathing patterns during rest and exercise
Air quality in poorly ventilated stables is a major modifiable risk factor for airway disease
Dust and mold in hay and bedding are primary airway disease triggers in stabled horses

Welfare Considerations

Horse respiratory welfare is substantially influenced by management decisions about stabling, bedding, and hay quality. Horses evolved as outdoor animals breathing clean air, and stable environments frequently expose them to concentrations of dust, ammonia, and fungal spores that cause or worsen airway inflammation. Welfare-focused respiratory management includes maximizing turnout, using dust-extracted or haylage in place of dry hay, choosing low-dust bedding, maximizing stable ventilation, and monitoring for early signs of respiratory difficulty. Technology advances in continuous respiratory monitoring allow earlier intervention before clinical disease becomes apparent.

What You Can Do

Maximize turnout and minimize stabling time to reduce dust exposure
Switch to dust-extracted hay, haylage, or soaked hay if your horse shows any respiratory signs
Ensure optimal stable ventilation through appropriate positioning and sizing of windows and doors
Work with your vet to conduct airway assessment if your horse shows any performance decline
Consider air quality monitoring in your stable environment to identify modifiable risk factors