I'm trying to slowly put her back on grain, but this too is going to be tough because she has really tough hooves and I want to keep them that way (she hasn't been seen by a farrier in over 2 years and her hooves look amazing! And I'm hoping to keep her barefoot). I'm afraid if I get her back on a decent amount of grain her hooves will eventually soften up from all the extra protein in her diet. Any tips? Right now I'm only giving her about a half a scoop (about 1.5 quarts) once in the morning and once in the evening. I was thinking about adding small amounts of corn oil to her feed but was wondering if you guys had any good tips. Any help would be greatly appreciated!