Equine
asthma is a non-infectious inflammatory airway disease. It has previously been called Recurrent Airway Disease (RAO) or sometimes called Chronic Obstructive Pulmonary Disease (COPD). Equine asthma is an allergic reaction that can be triggered by environmental allergens such as fungal spores found in hay and straw. This reaction leads to the production of excess fluid and thickening of the small airways, causing them to become obstructed.
As a result, the horse must make an increased effort to breathe and may develop a cough to clear trapped mucus.
While there is no cure for this progressive condition, it can be managed through various steps to help the horse cope with it.