my dog bruce is the most gentle dog he likes loves and strokes and gives a lot of love back recently he started limping and i took him to vets and was told he possibly has hip displacea i was heartbroken as it is my fault he is over wieght and this was not helping so now i need to get him slim and fit but wondered if any one had any advice on a diet and the amouts he should be fed please help me get my beautiful boy back on track ready for what treatment lies ahead for him thankyou