Question: My hay is only a bit dusty or moldy—is it okay to feed?
Even hay that is a bit moldy can cause big problems.
Never feed dusty or moldy hay. Even if you wet the hay with water
, the horse can breath in enough mold spores to seriously damage its lungs. One winter of feeding moldy hay can turn an athletic riding or driving horse into a horse that few people will want. There is no cure for damaged lungs and drugs can only partially alleviate symptoms. Most horse sports will not allow a horse to compete if drugged.