diffrence between cuckoo and barred

[Chris09]

Quote:
When referring to Barred Fowl,
The Z chromosome (as in the Barred Rock, Cochins, and Dominique etc.).
This gene creates a horizontal white (non-pigmented) bar on what would otherwise be a pigmented feather. So The "Z-Linked barring", and Sex-link barring are the same thing.

Since we refer to Sex-link Barring as just Barring the is no real need in putting the Z in there. As in,

Kz^n - very slow
Kz^s - slow
Kz - late
kz+ - rapid feathering



Chris

 

[nicalandia]

Quote:
where did get your info from?.. that I like to know

 

[joe17]

How can you tell if a silkie is barred or not? Everyone is calling them cuckoo but is that true? Also, is cuckoo sex linked along with barred? Can't you breed cuckoo female to a black male and hatch out all cuckoo males?

 

[nicalandia]

Quote:
Silkies seems to be cuckoo, wich is the same sex linked barring gene as the Barred breeds, the thing about silkies is their feather structure will not allow fine barring, and even if they were properly barred, which is the combination of Barring gene(same as cuckoo, but lacking the following gene) the sex link slow feathering gene "AND" Columbian(Co, Dr. Ron Okimoto was able to segregate Columbian from Show Quality stock, but was unable to do so on hatchery stuck) even if they were properly "Barred" they will most likely looked cuckoo wich is a messy barred..

 

[centrarchid]

Quote:
where did get your info from?.. that I like to know

Chris09 and nicalandia,

First acknowledge I am addressing loci addressing feather growth rate, not barring when referring to above.

 

[nicalandia]

Quote:
where did get your info from?.. that I like to know

Chris09 and nicalandia,

First acknowledge I am addressing loci addressing feather growth rate, not barring when referring to above.

recessive sex link feathering gene(K^s) is linked to Barring on Z sex chromozome at 1.1 centi morgan...

 

[centrarchid]

Quote:
Chris09 and nicalandia,

First acknowledge I am addressing loci addressing feather growth rate, not barring when referring to above.

recessive sex link feathering gene(K^s) is linked to Barring on Z sex chromozome at 1.1 centi morgan...

Making headway.

We appear to be using k for autosomal and sex-linked feathering genes.

I am reversed, I think I'm incorrectly following information provided by Chris09. See my post #20. In my birds with the sex-linked locus affecting feather development rate, only two alleles are evident. K^s slow feathering and k+ (fast feathering wildtype). My nomenclature was incorrect since the slow feathering allele is recessive, it should be lower case k, thus being k^s, not K^s as shown and the wild-type fast feathering should be K+. I also introduced confusion by using z (intended as subscript) to indicate the sex-linked feathering gene is on Z-chromosome. This done because another locus appears autosomal and have the multiple alleles (K^n - very slow, K^s - slow, K - late, k+ - rapid feathering) indicated by Chris09. Either way, two loci are at play influencing feather growth rate. The autosomal is also recessive to wild-type and is always present in dominiques while the other you defined is present in only some strains that in my opinion are influenced by barred Plymouth rock. Both loci influence barring and I think they are additive.

 

[nicalandia]

Quote:
I believe I was the one providing you wrong info for once...

K^S is actually dominant over k+..

Quote:
K-late
K^s-slow
K^n very slow

It was taken from here:
http://sellers.kippenjungle.nl/page3.html

Attention! Some of the linkages on the site are outdated.

 

[centrarchid]

Quote:
I believe I was the one providing you wrong info for once...

K^S is actually dominant over k+..

Quote:
K-late
K^s-slow
K^n very slow

It was taken from here:
http://sellers.kippenjungle.nl/page3.html

Attention! Some of the linkages on the site are outdated.


Does not matter. I still do not know how to get crisp barring in birds with faster feathering. Woodpeckers and cuckoo birds can do so possible but either needed alleles / loci do not exist in chickens or they are not impresent in the gene pool I am working with.

 

[nicalandia]

Quote:
I believe I was the one providing you wrong info for once...

K^S is actually dominant over k+..

Quote:

Does not matter. I still do not know how to get crisp barring in birds with faster feathering. Woodpeckers and cuckoo birds can do so possible but either needed alleles / loci do not exist in chickens or they are not impresent in the gene pool I am working with.

you could try adding Columbian from columbain rocks.. as the geneticist, mentor and teacher of me and alot of guys at the coop. Dr. Ron Okimoto was able to segregate Columbian from Show stock. Columbian can give you the crisp you are looking for..