^^ Peggysue is right on, there. I would avoid pure alfalfa in a founder-risk horse, personally. Since several of my horses are founder risks, I feed content-tested grass hay mix with 30% alfalfa. I think using tested hay is a very important first step - since hay is the primary diet, and you have no idea what supplementation is needed if you don't know what your baseline is. It's not expensive to get the hay tested, and I've found a hay provider can usually be talked into testing the hay because he can often then charge a higher price to other clients (but not me, I suggested it, darn it lol). There are also certain practices the hay farmer can utilize that lower the sugar content of the hay (such as cutting in early morning hours).
Last edited by Indyhorse; 01-14-2011 at 10:04 PM.