Horse diet-edited-please share what your horses are being fed and what may or may not have worked for you?

A horse that age shouldn't need much extra. He shouldn't be underweight as long as he has hay or grass. I always keep hay out for my horses 24/7.I feed a good clean bermuda hay. He needs to be fed twice a day. Strategy is a good feed. You can also add weight builder to it. They sell it at the feed stores. You can start giving him a little alfalfa. It's high in fat and will put weight on him, but it will also probably make him a little more hyper.Which the trainer probably won't appreciate. Speaking of trainer,why are you asking us about this. Doesn't the trainer have good advise? Good luck!