Methods of improving reproductive and respiratory health

1. A method for reducing chronic respiratory disease in an equid, the method comprising administering 2-4 g per 110 lbs body weight for at least two weeks of a composition, wherein the composition comprises an all-vegetarian, fish oil-free source of DHA, methylsulfonylmethane (MSM), and between about 1000 and about 3000 mg per 30 g dose of a combination of Pleurotus eryngii mushrooms, Cordyceps militaris mushrooms, and Ganoderma lucidum mushrooms, wherein a portion of neutrophils in a lung mucus of the equid is reduced relative to the lung mucus of the equid prior to administration of the composition.

2. The method of claim 1 , wherein the equid is further restricted to a hay free diet.

3. The method of claim 1 , wherein the chronic respiratory disease is recurrent airway obstruction (RAO) or inflammatory airway disease (IAD).

4. The method of claim 1 , wherein the composition further comprises mixed tocopherols and ascorbic acid.

5. The method of claim 1 , wherein the composition comprises between 4500 mg and 5500 mg MSM per 30 g dose.