My neighbor has a 8 yr old small horse/pony that she's currently training and is possibly going to sell her to me but she is extremely overweight. So overweight that the vet said if she doesn't lose weight or if it gets worse she could start to have some thyroid issues etc. she is a pony and yes I know they put on quite a bit of weight and are easy keepers, but still. My neighbor and I are trying to find a way to help her lose weight. We don't know what to do though since the horse doesn't get fed she just grazes. By the way is there such a thing as a DNA test for telling the breed of a horse? I know there's one for dogs. Thanks!