Join Date: May 2009
Location: Mid Northern TN
Remember that a stallion can breed a mare through a fence. Allowing them to share a fenceline is asking for trouble and a foal from a mare who is in no condition to be pregnant (if she isn't already). Both the gelding and the stallion look like they're in quite a bit better condition than the mare, and I think your feeding plan is sound. Expect it to take months to get them all up to where they should be- horses do not and should not gain weight too quickly. Best to take it slow and steady and for them to put on muscle rather than fat.
While I don't think 1/4 mile walk will hurt them any, please, please, please be careful of putting anything on their back. Without proper muscle it is very easy to cause damage and what fits them now will likely not fit in two months. It will take 2-4 months for their starved muscles, tendons and ligaments to return to full strength, right now they are fragile and much more susceptible to injury from a minor slip or missed step than a healthy, well fed but out of shape horse would be.