Free choice hay is the best thing for weight gain. Some alfalfa also helps.
A lot of cribbers have ulcers, so you might discuss that with your vet.
Bottom line, try to feed enough hay at a time that there's a little left when you feed again. Add a little alfalfa if you can (pellets or cubes are fine if that's all you can find). For some reason, it seems to really help. Posted via Mobile Device