Hmm, NN'S can and do some have bowties. Now if a bowtie is bred to a bowtie isn't there a percentage that could come out fully feathered? Or does that only apply to when they are crossed to another breed?
It is a partially dominant trait - relative feathering depends on how many copies of the gene a chicken has. Usually, the "naked neck" gene allele is represented as N, and the feathered version of the gene (wild type) is represented as n.
NN (homozygous) = tiny bowtie (completely naked neck is less common) - I got 6 of these out of 15
Nn (heterozygous) = big bowtie in front, naked neck in back - I got 8 of these out of 15
nn (wild type) = fully feathered - I got 1 of these out of 15
It's very handy to have genotype that is visible when you may want to select for it.
NN x NN = 100% NN
NN x Nn = 50% NN + 50% Nn
Nn x Nn = 25% NN + 50% Nn + 25% nn (fully feathered)
NN x nn = 100% Nn
Nn x nn = 50% Nn + 50% nn (fully feathered)
In the above, the nn could be either a fully feathered "Naked Neck" or a completed different breed - similar result, as I understand.
So there are a few different ways I could have gotten the chicks I received, depending on how the breeders at the hatchery manage their breeding. Some folks manage Naked Necks like a breed, but others use them as broilers if they are not breeding their own meat birds (including a lot around here - it's a very popular chicken breed that is asked for by name at farmers markets). I believe Ideal is oriented toward the latter, based on what some other folks who got Naked Neck chicks from them (and I knew this going in).
Perhaps draye or DesertChic could elaborate further, they have more experience. (Just ask draye how many eggs he set recently!!!). I just read a lot, teach human genetics, and have baby chicks.
- Ant Farm