Naked Neck/Turken Thread

[Turk Raphael]

The rooster,like all males determines the sex of babies. Doesn't matter what kinda animal it is

Really?



Q: How is sex determined in chickens and what does it mean?

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A: If you want to know how to tell the difference between males and females in chickens, please see our related questions, below. This question addresses how sex is determined in chickens genetically.

In birds, the sex of the embryo is determined by the egg, not the sperm (as it is in humans). Avian sex differentiation is not determined by XY chromosomes like it is in humans and most mammals (or even the XO system used by some insects). In those systems the sex is determined by the sperm, by what the male contributes to the offspring. By contrast, birds have a ZW system of sex determination (shared with butterflies, moths, fish and reptiles). In that system, sex is determined by the female within her ova, and the sex of offspring is not affected at all by the sperm which the male contributes. Some people think it is this difference which makes parthenogenesis possible for birds. Parthenogenesis occurs when unfertilized eggs see embryonic development.

The truth is that these parthenogenetic eggs are extremely unlikely to hatch, and in most studies, avian parthenogenesis is reported to occur more frequently with turkeys than chickens. (One book I have seen reports just the opposite.) Most parthenogenetic development only involves a few organized cells, and it closely resembles normal embryonic death within the first three days of development in fertilized eggs. Parthenogenesis ceases when the eggs are incubated, although it is theoreticallypossible for one to hatch. Reports suggest that offspring could be males that could then reproduce sexually. Some suggest that parthenogenesis is more common when males are absent from the parent flock, and that parthenogenesis is nature's way of providing for what is missing.

 

[maranfarmer563]

How can that be,with sex links ,pullets look like their dad.

 

[Turk Raphael]

How can that be,with sex links ,pullets look like their dad.

With sex-links, we're talking about phenotype. Whole different ball of wax.

 

[Dizzywitch]

I have a genetics quandary I am mulling over.  My head roo is shakespear he is NaNa w/ a very bare neck just 2ish feathers.  He does not show fm, not sure if he carries or shows under feathers (so not showing much but still has it) I think is some form of barred / birchen and do not believe he carries sc.  He however is a good natured, good protector roo.

I have an up and comer, looks like he will be bigger then shakespear, carries and shows good fm (for a male)  carries sc, is some form of odd but very pretty markings, but is only Nana, w/ a large bow tie/ bib.  His temperament is unknown at this time since he isn't mature.

I have several NaNa females w/ just a couple of neck feathers so if I replace shakespear I won't lose that genetics.

Hi Kassaundra, I'm still fairly new at this chicken thing and even with all of the reading, I still get a little lost. What does it mean to be NaNa (heterogeneous?) fm (?) and sc(?)? And is the tie/bib the feathers on his neck?

 

[Kassaundra]

Hi Kassaundra, I'm still fairly new at this chicken thing and even with all of the reading, I still get a little lost. What does it mean to be NaNa (heterogeneous?) fm (?) and sc(?)? And is the tie/bib the feathers on his neck?

Na is the necked neck gene, nana = fully feathered chicken, NaNa = fully naked neck, little or now neck feathers, Nana = only has on naked neck gene will have a lot of neck feathers in the front of the neck, these neck feathers are called either a bow tie (usually meaning just a few) or a bib ( usually referring to many neck feathers)

fm, is the melonitic gene (dark skin like a slilkie)

sc is the scaleless gene meaning no feathers, totally naked (if ScSc that is) if Scsc feathering will be normal but they will have patches on their legs w/o scales.


Rudy is ScSc, also Fm, but doesn't show much anymore, just the freckles remain



This boy shows Fm, is also Scsc but you can't tell from this pic, and is Nana, this bow tie could be referred to as a bib
(this is the boy I was referring to about maybe replacing shakespear)



This boy is NaNa see his small bow tie



This is shakespear he is NaNa w/ just a 2 feather bow tie



This girl is Fm and Nana see the larger bow tie (bib)

 

[LindaB220]

Na is the necked neck gene, nana = fully feathered chicken, NaNa = fully naked neck, little or now neck feathers, Nana = only has on naked neck gene will have a lot of neck feathers in the front of the neck, these neck feathers are called either a bow tie (usually meaning just a few) or a bib ( usually referring to many neck feathers)

fm, is the melonitic gene (dark skin like a slilkie)

sc is the scaleless gene meaning no feathers, totally naked (if ScSc that is) if Scsc feathering will be normal but they will have patches on their legs w/o scales.


Rudy is ScSc, also Fm, but doesn't show much anymore, just the freckles remain



This boy shows Fm, is also Scsc but you can't tell from this pic, and is Nana, this bow tie could be referred to as a bib
(this is the boy I was referring to about maybe replacing shakespear)



This boy is NaNa see his small bow tie



This is shakespear he is NaNa w/ just a 2 feather bow tie



This girl is Fm and Nana see the larger bow tie (bib)

I have saved this whole post. Good stuff. I'd definitely keep both the males if you can or have room. He's too good to not keep.

 

[maranfarmer563]

Very good explanations and examples Kass. I would like some Fm NaNa eggs to hatch.

 

[Dizzywitch]

Wow! I was reading and taking notes and hoping there isn't a quiz later. The genotypes and presentations of the genes are fascinating.

If I understood correctly my boy igor is probably a Nana with a bib, Fm because of his pink/red skin color, and I'm not sure about the sc part. His legs look like they have scales.

 

[Kassaundra]

Wow! I was reading and taking notes and hoping there isn't a quiz later. The genotypes and presentations of the genes are fascinating.

If I understood correctly my boy igor is probably a Nana with a bib, Fm because of his pink/red skin color, and I'm not sure about the sc part. His legs look like they have scales.

Yes to Nana, no to fm, that is dark black / grey skin, almost surely not Scsc unless you know it is in your birds it is likely not it is very, very rare.

 

[Dizzywitch]

Yes to Nana, no to fm, that is dark black / grey skin, almost surely not Scsc unless you know it is in your birds it is likely not it is very, very rare.

Thank you Kassaundra! I knew less than nothing about naked necks, and chickens in general, four months ago and then I met and fell in love with this sweet guy. This site and all of the posts have been incredible helpful!