Sex- linked Information

[englishcockers]

Barred rocks look like cuckoo marans, right?

Barred Rocks and Cuckoo Marans both have the barred gene The BR barring is finer... I believe because they are slower feathering
But some hatchery BRs are more like cuckoo
But yes, Those or Dominiques or any breed of hen with sex linked barring should probably work.

 

[Ebove06]

Barred Rocks and Cuckoo Marans both have the barred gene The BR barring is finer... I believe because they are slower feathering
But some hatchery BRs are more like cuckoo
But yes, Those or Dominiques or any breed of hen with sex linked barring should probably work.

Okay, thank you very much!

 

[Ridgerunner]

I specifically asked that question to one of the genetics gurus on here. The cuckoo pattern comes from the fast feathering gene. The feathers grow so fast the pattern is scattered. The barred rock look comes from the slow feathering gene so it is much sharper and crisper. This is something breeders have to work at to get it right. If it does not remain an emphasis in selecting which chickens get to breed, the barring can get less crisp.

So yes, you are exactly right. It’s related to the fast or slow feathering gene. The barring gene itself is the same in either case and will make sex links, whether you have crisp Barred Rocks, ragged Cuckoo Marans or Dominique, or another barred hen.

 

[Kev]

I am guessing BCM's are homozygous for E^R (birchen/crowing) but are otherwise wildtype.

Many- so many to the point of seemingly all- BCM follow chick down and adult patterns for E.

It probably would be better to assume they are E possibly mixed E/ER.


In the case of BCM being E, cross with wyandotte would give black chicks, with solid black hens, some with leaking limited to the hackles and mixture of solid black roosters or black roosters with some leakage.

 

[Ebove06]

If I fed the right info into the chicken calculator ... It says the chicks would just be black
at least, they would grow up to be black
I am guessing BCM's are homozygous for  E^R (birchen/crowing) but are otherwise wildtype.
I suppose the E^R + the Ml from the Wyandotte just overwhelms the groundcolor
I wonder if you would see a bit of difference on the chest or face of newly hatched chicks
I wouldn't bet on it though

One more thing, what do you mean by the chicken calculator?

 

[Ridgerunner]

http://kippenjungle.nl/Overzicht.htm#kipcalculator

 

[Kev]

One more thing, what do you mean by the chicken calculator?

Put in E NOT ER for the BCM parent.

 

[Ridgerunner]

Sorry, the Black Copper Marans is Birchen, ER. That’s why you can see the red/copper coloring.

E is Extended Black, which means you get a solid black chicken unless you have a modifier like Barring or the Blue feather gene, or some other modifiers. You might get some leakage with Extended Black but you will not consistently get the color and pattern like you will with Birchen.

 

[Kev]

Sorry, the Black Copper Marans is Birchen, ER. That’s why you can see the red/copper coloring.

E is Extended Black, which means you get a solid black chicken unless you have a modifier like Barring or the Blue feather gene, or some other modifiers. You might get some leakage with Extended Black but you will not consistently get the color and pattern like you will with Birchen.

Sorry, that is incorrect. E without melanizers will have color. Despite the name, E does NOT give a solid black chicken all by itself. Generally, they have less color than birchens, especially the hens but that is about it as for visual differences. And solid black or very nearly so BCM hens aren't all that rare. I know as I bred and crossed them.

Also the chick down pattern is different between E and ER. Look it up. So many BCM chicks have the E chick down pattern.

 

[Ebove06]

Sorry, that is incorrect.  E without melanizers will have color.  Despite the name, E does NOT give a solid black chicken all by itself.  Generally, they have less color than birchens, especially the hens but that is about it as for visual differences.  And solid black or very nearly so BCM hens aren't all that rare.  I know as I bred and crossed them.

Also the chick down pattern is different between E and ER.   Look it up. So many BCM chicks have the E chick down pattern.

Thank you!