Hello, I am new to the site and would appreciate some input re dry kibble foods. We have an 80ib bull mastiff puppy and a 9 lb silky terrier. The silky eats Kirkland sign. lamb and rice kibble and we are feeding the mastiff timberwolf wolfcub kibble: formulated for large breed puppies. The mastiff's stools are huge and seem too frequent and gelatinous. It is necessary to maintain a controlled growth path for her as she has signs of mild hip dysplasia already at 8mo. old. I add glucosamine/msn to her food daily. The silky seems fine with her diet. Thanks...Jill: