Grain really doesn't do much for horses. It's not easily digestible. Have you thought about giving them beet pulp? It doesn't make them hot and won't cause them to colic, founder or get ulcers. We've used it for several years for all of our horses. It worked great for our hard keeper to keep weight on during the winter. Posted via Mobile Device
I used to feed beet pulp, but I cannot stand the smell of it :P and when I said light - moderate work, it would be more on light side :P I have a friend how feeds oats, and her horses are fine :) think I might just mix both, and change if needed.