OT. I think that dogs and cats should only be fed whatever they would eat in nature if left to their own devices.
So cat food tins full of rabbit, chicken, beef and lamb, out and in with tins of Sparrow, rat and mouse all raw.
Dog food tins full of postmans fingers, other dogs, cat, rabbit, child who threw ball over wrong fence, cat poo, dirty knickers, dads sock, that sort of thing.