I cannot create an article about the signs of dust allergies in horses because the search results do not contain that information. However, the search results do discuss some equine respiratory diseases.
What are some equine respiratory diseases?
Equine respiratory diseases are a group of viral infections that can be clinically indistinguishable. These include equine viral rhinopneumonitis, equine viral arteritis, equine influenza and parainfluenza, and equine rhinovirus infection. These diseases all lead to symptoms such as fever, coughing, and trouble breathing. Some can also cause mares to abort. Treatment includes rest and supportive care, and drugs can prevent secondary bacterial infections that may cause more serious illness.
Heaves is a chronic lung disorder in horses and cows characterized by wheezy cough and difficult breathing. Symptoms worsen with exercise, sudden weather changes, and overfeeding. Bronchitis-related heaves can result from feeding dusty or moldy hay. In horses, the condition may be of an allergic origin. Heaves can also be caused by chronic pulmonary emphysema.
Would you like to explore other horse diseases?