Charlie (6 months) was on raw, and I was told to give him chicken necks as well, as the bones are very good for them. It took me 3 months to do it because I was so scared about the bones. Anyhow, I fed the chicken necks for consecutive 3 meals as he seemed to love them. THEN, he got pancreatitis from too much fat. Apparently, you should feed chicken necks in only one meal a day, and spread out over the course of the week. Initially, I was more concerned about the bones, but the scan at the vet showed that the bones were making their way through just fine. Just a caution, to beware of feeding too much chicken neck to young pups.
Charlie no longer likes raw food (after this episode), and doesn't really like dry either. I have found that if I feed his dry as treats, he'll accept it. I guess its ok because he is in training, so I just train him with his kibble throughout the day.
One thing I can say for sure, is that he had WAY better breath on the RAW. I really hope that I can put him back on it one day.