the neck is good, but only raw.
you can feed any part of the turkey raw, but unless a dog is used to it, i'd trim off the skin since it's very fatty.
i dismembered a 22-pound turkey for pet food last night, all the bones (with some meat) will make nice meals for quigley and the ground meat, liver, heart, gizzard etc. was ground/chopped up for cat and dog food. i only set aside a little over a pound of the breast meat to make dinner for 2 humans.