Originally Posted by Snugs
Sorry, I meant just no teeth. Obviously my pony has no trouble eating anything.
All he gets in terms of feed is maybe 1/4 scoop of sweet feed. We actually don't have much grass and therefore have a round bale of hay out in the pasture. I think he'd be able to get the hay more easily through the muzzle than grass--but still not so much that he blows up even more!
What are you giving him any feed for, let alone sweetfeed if he's already fat?? That's the first thing I'd stop. Along with free choice hay. Agree with Wares that a muzzle is worth a try - doesn't work for all, but it can be an easy answer if it does. If a horses back teeth are worn down, that's when they tend to need a 'prechewed'
I was also going to suggest that if the muzzle doesn't work, you may need to restrict him physically from much grass at all & feed him only soaked hay. As you've said there's little grass & he gets free choice hay, I suspect that's more of a problem than the grass. While hay loses nutrients in cutting/drying, it unfortunately doesn't lose sugars, so it will be just as rich as the grass it started from. Horses do need to eat little & often, rather than only a few meals daily & do need around 2% bwt(of his desired weight) daily in forage, regardless how fat. So I'd start by feeding him only that much daily & in a 'slow feeder' or bit by bit, rather than give him free access to gorge all day long. If you find he's still not losing any, you may then have to soak & drain the hay before feeding, to leach out sugars.
Look up safergrass.org & ecirhorse.com