I have tried feeding canned meat with biscuit. When my greyhound couldn't cope with dry complete anymore i tried her on Chappie, Pedigree and Butchers. None of these i found kept weight at the rear end. I don't think canned dog food is what it was in the 70's and 80's which is what everyone fed their dogs then. I found the same thing when i had a 2 yr Saluki-Collie - however much i fed she'd lose weight at the rear. Why? - i don't know. My whippet-bedi cross does well on Pedigree. I switched to plain pet mince from the local butchers - i know what it is - the human meat that isn't used i.e. scrapings from carcasses, lights - all good meat but not used for human purchase in the shop.

As for animal derivatives... it is unfair to comment! I don't think it is claws etc but as manufacturers won't come clean and say what it is i'd ratehr not bother. Butchers do claim 50% meat content in their tins which is higher than others. I don't trust any of them i'm afraid.

I am thinking of putting my whippet-bedi on dry complete as it is supposed to be better for the teeth as he won't touch bones.

So best wet food was the question... see what pet mince your local butcher can offer - i pay 20p for 2 to 3.5 lbs bag (he doesn't bother weighing).