i have to admit my rottie is on the 'chunky' side

however although i monitor his diet carefully & he has no treats apart from at training when he only gets a few crab sticks & hot dog slices(low fat :P), but because of his orthopaedic probelms his exercise is limited & he often ahs to have long periods of lead walks only, which means he is not burning off the calories, he does go hydrotherapy & works on the underwater treadmill twice a week as low impact exercise.
i know they are a breed which is predisposed to weight gain & i am trying my damndest not to let him get fat!
my vet is happy with his weight , but says we need to watch to ensure he doesnt gain, he has a waist & a 'tuck up' but is more hefty thatn i would like so i can see how easy it would be for a rottie to get fat.
my other dog eats far far more, hasthe same exercise (if not a bit less) but is very lean.i am in a bit of a catch 22- i know being big doesnt help his orthopaedic problems (He is a naturally very big rottie anyway- 55 kg at the last weigh in & is taller than any other rott we have ever met) But because of all his problems he doesnt get the exercise i know he ideally needs:(