Hi there,
How are you making out with your horse?
I believe alfalfa cubes can do wonders for a horse...but be careful of them as they are so dry and some horses might have a hard time breaking them up (especially an older horse who doesn't chew as well). You can soak them to for a bit...its amazing how they puff up. CORN oil works well. Beet pulp (soaked of course)...great stuff! AND, let's not forget the wonderful GROUND FLAX!!!!!!!!!!! I can't tell you about amounts as I am no expert and i feed my older gelding (who i would call a hard keeper) a combination of Hi Fat Hi Fiber, Sweet Feed, Crimped Oats, ground flax, corn oil, apple cider vinegar, and Pur A Yeast Plus, beet pulp plus lots of hay.
I guess if you don't want to feed your horse lots of grain (and I don't blame you)...then maybe feed the alfalfa chunks, flax, a supplement of some kind, corn oil.
Remember, Apple Cider Vinegar (pure) has many many health benefits for horses (and people)...so 1/4 cup once a day for a healthy horse might do wonders also.
Let us know how you manage! : )
_________________
The greatness of a nation can be judged by the way its animals are treated.