I know most do anyway but always if you feed dry to keep it in an air tight container and a lad was telling me that he lost a couple of pups once due to rats had got into the food n must have pissed on it n was only odd one about aswell all I can think is if he left the dry out for the pups for a while, that's the good thing about meat really as not only better but they normally eat it alot more eagerly as opposed to dry.