i've used chicken necks successfully on more than one dog. otherwise i wouldn't have suggested it. not sure of the bone/meat ratio as compared to backs but i think backs would be more expensive. chicken necks are actually longer than what i imagined....at least over here they are
I used to feed chicken necks as a staple too.
Unfortunately my older GSD now tends to gets constipated with a high bone ratio and conversely, too much skin gives him the runs. Duck necks are larger than chicken necks and come skinned, so no waste. His evening meal nowadays usually consists of a duck neck and some organic beef meat, venison, pork or lamb.
My younger GSD can tolerate chicken necks no problemo, but there's just not enough meat on a chicken neck, unless I give him tons of necks at a time, he starts to quickly get that bony headed, hollow eyed starved look. For him, since he's young, he gets lots of various protein sources like duck necks, venison, beef, pork tails, pork ribs, lamb necks, etc..
For myself personally, I've seen a couple PBS specials as of late documenting the trouble with chicken and it's just kind of turned my stomach, so I'm eating a lot less chicken, unless it's locally raised and butchered, which is not as easy to find as one would think.
That's one of the great things about living up here, my pork, lamb, beef, is all locally sourced, pasture raised, pasture finished, and organic. The venison is wild and courtesy of my hunting neighbors.
Sorry to get off track, Larry...and now back to the regular broadcast schedule...