one of my quarter bull x lurchers has had problems keeping on weight since he was a pup, his stools are often runny, over the last year iv tryed 5 different foods, he gets regular bones and trimmings from my butcher and a guy up the road that sells venison at farmers markets etc.... so he is getting cereal based food split half and half with the triimings,he seams to be getting worse, so much so i nearly didnt take him bushing yesterday, he is wormed 3 times a year, i know it should be 4 but iv 10 dogs so 3 doses a year it is, all the other dogs are good on all the foods iv used, probably due