[capt_noonie]

You may want to try hand feeding while doing trick training at the same time. This was what we did with Uni when she was a pup and most of her tricks came easily for her, since she didn't get "treats" and only kibble during meal times, which was also trick training time.

Normally I would say first guess was teeth hurting, but seems like the vet already took out the ones that were bad. And I' surprised he won't even eat chicken, that's usually a favorite.

Have you looked into Honest Kitchen? They are freeze dried/dehydrated (can't remember which one) food and they have one variety that doesn't come with meat, you add your own. So it's kind of like home cooking but a bit easier. You can add in canned salmon from Trader Joes (it's ONLY salmon, nothing else) and that would be a balanced diet.

I too wonder what are the treats that he loves to eat. Are they "junk food" treats? That may be why he wants the treats and not the healthy food. Most people are the same way, but it's not healthy to live off of junk. Plus he's already 11, so he has to get healthy food if he's to live a long life.