Hi, I have an older horse who has become very hard to keep any weight on. Vet says she's just fine, but she doesn't defend her food and eats VERY slowly. I've started giving her Equine Sr. And want to increase the amount and add alfalfa pellets, but the problem is, she eats so slow that I can't stand around and fend off the other horses she's with. There's no current way to separate them, unfortunately, so I want to ask my husband to design a "creep feeder" for old girls. Has anyone built or fashioned some kind of a structure to keep the other out, let her eat until she's full, and then let her rejoin the herd? It never used to be a problem where we had them all pastured, but now the arrangement isn't as flexible. And the fatties, of course, are more agressive and are horning in on her feed. TIA for any suggestions.