Thx eveyone for all your input. And the weight gain product is exactly the idea I've been looking for, OGM. I've never seen it locally but I found to order online.
Will keep you all posted as to how he fares. I know, the people should not have animals....I sincerely believe they think that they are helping them. It is a very touchy subject. Why why why keep them if you won't look after them??
Looks like you got a lot of good suggestions. I saw on Page 1 that he was eating a little better. Let us know how he's doing; getting his teeth done will make a big difference. Good luck !!
P.S. I was referring to "Cow Corn" which is dry feed corn on the cob. He won't be able to eat it until his teeth are done probably.