For some reason, I don't know if it's the hay I have or what, but Ivan doesn't always eat all of it. Overnight, he'll get 3 flakes to munch on in his stall, and he always as 1-2 flakes left in the morning. I don't get it. He has eaten 3 or 4 different types of hay so far, and while he will enthusiastically eat hay, he often just won't finish all of what you give him. I give him the option of 20-25 lbs a day, and he really just won't eat all of it.
By the way, I'm not feeding Safechoice at all. I'm feeding Purina Ultium, which actually is higher in fat than Triple Crown Senior. TC Senior is 10%, and Purina Ultium is 12.4% guaranteed minimum. The vet said the max I need to give him of that in a day is 11 lbs total until he gets his weight up, then we're going to start cutting him back to about 5 or 6 lbs total. He still needs to gain about 50 lbs, then once I have at least that much more on him, I'll start training a bit more heavily with him to hopefully build up another 50 lbs in muscle. Ideal would be to have him at 1000 lbs by summer.
As to an ulcer problem, he hasn't been prone to them, and he doesn't show symptoms, though we did consider it for a moment. He's really young, only 5, and is still supposed to be growing (outward) for a minute. He never had ulcers before even while under super heavy training at the track, so both his old vet and my vet think it's unlikely that he has them now. It's just so hard to get weight back on a skinny horse when the lows have been in the 20s so consistently over the past month. It's a real uphill battle, particularly when he didn't grow a coat this year after coming up from Florida.
I'm looking forward to getting them moved down to my new barn tomorrow or Monday. I've got them temporarily at a friend's place that was down the street, and we rode out on some awesome trails yesterday for about 5 hours, taking advantage of all the trails while we were there and the weather was good. Since I'll be the only one feeding at the new place (with it being self-care, nobody feeds anybody else's horses unless you make an arrangement with another boarder to help each other out), that makes things really simple! I will be able to feed him exactly as the vet tells me, no supplements thrown out or anything!