The turkey necks I get are definitely big enough for a lab, about 1 1/2 lbs each. Chicken neck are small enough that they could be swallowed whole. I suspect that a dog as big as a Lab would just pass them with out any difficulty, but I wouldn’t let my Border Collies have them if they were gulpers. I would give a half chicken, or a whole leg quarter to a Lab, just so he gets plenty of chewing satisfaction. I like to give ribs to good chewers, and chichen and turkey back are good too. Chicken feet are fine for any size dog, cut the nails off first if you are worried, but that shouldn’t be an issue for a large dog.
If you don’t have a need for increasing calcium in your dogs, I wouldn’t feed chicken bones except inside the chicken I’m feeding.
