I have a roo with an attitude problem who is destined for freezer camp. He's been isolated in a small dog kennel and has been given all he can eat of whatever I have, layer feed, scratch, leftovers etc. He's been in there about a month and there has been no weight change at all. His keel bone is very very prominent and very little meat anywhere Still too scrawny to justify slaughter or firing up the crock pot. He's been checked for worms and other parasites, none. He's a mutt (looks like sex link with a few feathers on his feet/legs) and we don't know the age. What else can I do to get him a little thicker??