Try SafeChoice, it has always worked amazing for any horse I have ever seen it fed to.
Also, I would not go the alfalfa cubes way, one they are not really all that high in fat and they will make a horse hot.
Another feed you may wanna check out is Empower, I would not recommend this feed to be fed to an already hot horse. It is kinda high though last time I fed it price per 50lb pag was $25, but it is a very high in fat good feed!
Also, I have used weight builder on my mare and I can never finish a bucket with her before she is OVER WEIGHT! haha
I also love beet bulp, but it is more of a filler then anything else, it is not all that high in fat.
Alot of people like rice bran, me I am not that big of a fan, I did try some rice bran pellets but my mare would not eat them.
Good luck, also once you change from feeding that crappy sweet feed you will probably see a huge change with in days in yours horses behavior and appearance.
Last edited by sierrams1123; 08-17-2011 at 04:16 PM.