Why should moldy or dusty feed be avoided for horses?

Moldy or dusty feed should be avoided for horses because it can lead to serious health complications affecting both the respiratory and digestive systems.

Feeding horses dusty or moldy hay is associated with the development of heaves, a chronic lung disorder characterized by wheezing, coughing, and difficult breathing. This condition may be of allergic origin or result from bronchitis caused by inhaling these irritants.1

Furthermore, a horse's digestive tract is highly sensitive to spoiled feed. Consuming such feed can cause acute or chronic indigestion, a risk that is particularly elevated during hot weather. Ensuring the quality of feed is an essential aspect of responsible horse care to prevent these preventable ailments.2