I "tested" my Jack Russell on raw chicken on Sunday. It was a piece out of the "giblet" bag stuck down in a Cornish game hen. I'm not sure if it was a heart or liver or gizzard. When I gave it to him, he carried it off to another room, which I predicted he would do. I just assumed he ate it, but when I went into the room later, I found a blob of chicken guts on the floor. It looked like he had spit it out but not eaten it because it wasn't digested. He loves cooked chicken, though, so now I have a sinking feeling that it's going to be hard to get him to eat raw.