Get your hay analyzed. You can submit a sample to equi analytical who specializes in equine analysis. Most hays are overloaded with iron, and very low in copper and zinc. For example to balance my hay I need to feed 1100mg zinc, 400mg copper, 400mg manganese, along with the basics of biotin, methionine, iodine, selenium, lysine, threonine and vitamin E. Most ration balancers also contain iron (which is never needed, and can be a problem). Also, the mineral supplements on the market may not be what you need to balance your hay in the proper ratio. There are equine nutritionists that can help you with this online for a very small fee. That way you can be sure to supply all the basics your horse needs to thrive. Good luck.
- This reply was modified 2 years, 3 months ago by Laura S.