Join Date: May 2012
Location: CT USA an English transplant
My grandmother kept working cobs in the UK during WW2 when food was strictly rationed. They fed cooked potato peelings to their horses with no ill effects at all
I wouldn't suggest feeding them nowadays, certainly not in large amounts as they're high in starch but as long as you don't feed them raw, don't feed any that are green and don't feed the foliage/sprouting part of the potato plant I don't think they're any more toxic to horses than they are to humans.
Just winging it is not a plan