Sex- linked Information

[Ridgerunner]

The Wyandotte’s rose comb will be dominant, but not totally dominant. What I mean by that is that it will be a rose comb but will probably look a little wonky. It just won’t look exactly right. A pea comb works the same. If it is split like that, it looks just a bit off.

The Copper Marans is birchen. Birchen is always a pain in sex links. Best I can remember, it will not work.

Just for fun I went to the chicken calculator with this pair. Turns out the Silver Laced Wyandotte is melanised. I didn’t know that. Birchen plus melanised gives you a solid black chicken. That’s what the calculator gives you, solid black chickens, male and female. Certainly not sex links.

This stuff always surprises me.

Editted to ad,

I was wrong. The rose comb is totally dominant, not partially dominant. Even if the chick is split for the rose comb, it will act the same as it were pure for rose. The pea comb is partially dominant, I was right about that.

 

[Dead Rabbit]

The Wyandotte’s rose comb will be dominant, but not totally dominant. What I mean by that is that it will be a rose comb but will probably look a little wonky. It just won’t look exactly right. A pea comb works the same. If it is split like that, it looks just a bit off.

The Copper Marans is birchen. Birchen is always a pain in sex links. Best I can remember, it will not work.

Just for fun I went to the chicken calculator with this pair. Turns out the Silver Laced Wyandotte is melanised. I didn’t know that. Birchen plus melanised gives you a solid black chicken. That’s what the calculator gives you, solid black chickens, male and female. Certainly not sex links.

This stuff always surprises me.

i checked out the calculator too. i had forgotten about it till i read about it in an older thread.....i also noticed the solid black. i was shocked about that too. quite a few combos will give you solid black. also shocking.

 

[LAFreewayChickens]

Hello to all,
I have Bielefelder X Delaware cross chicks in the brooder and more in the incubator. Of the five in the brooder four are reddish and one is white. I believe they are sex liked like the first pictures in this thread. (gold X silver) I am trying to verify this as I would like to be able to sell them as such. Greatly appreciate any help. Thanks

I just was catching up with this thread.

If you cross a Crele (or "Legbar") roo (which is what came up when I googled Bielefelder), over Delaware hens, you DO get a gold sexlink.

I've crossed Cream Legbar X Delaware. The females are gold and almost always have one or two small dark spots on their heads at hatch, the males are pale yellow. Occasionally, i get some very slight gold tinges in the males, but I should become pretty clear once you've hatched a few. When true feathers come in males will look like a Del until they mature (when some red/gold will show up in spots), while the females will feather out buff barred, and probably look like lighter versions of your Bielefelder pullets.

Here's a link to a FB pic of some CL x Del chicks:
https://www.facebook.com/photo.php?...237.1073741829.313728265424266&type=1&theater

 

[browning6]

This is one of the most informative threads on BYC. I have read the first post a half a dozen times. So naturally i had to raise a RIR rooster and some hens to try it out in true BYC fashion.

So like i said my roo is an RIR and my hens that i have in his pen are RIR, Delaware and Silver laced Wyandottes.

Of course the RIR will be red but the other t will be sex linked unless i read the post wrong 6 times.

the first 5 eggs hatched and this is what i got.

From left to right--1 RIR, 1sex linked female and 3 sex linked males

Are the chicks from the RIR and SLW and Delawares both the wild type?

Look at the pics below and tell me if you concur with my verdicts.

 

[tadkerson]

The chick on the left could be a female sex link. The down the chicks have is a false wild type or pseudo-wild type. Many times when a bird is split or heterozygous at the E locus, the chick down is expressed as a pseudo-wild type. The RIR and Delaware have the same allele (gene) at the E locus so the cross should produce a down that has very little or no back stripes or facial marks.

I would agree with you on the other birds.

Tim

 

[lazy gardener]

What about Pea comb/Rose comb crosses? I'm hoping to work with the following breeds in a totally informal breeding program: Black Ameraucana male over RIR, EE, Dominique, RCBL, GLW. Goal: produce a barn yard mix that will retain a small comb. I expect that i'll get some F1 BSL OE from the Am x Dom, obviously more EE from the roo with EE, a blue or green egg from the leghorn cross, and OE from the Am x RIR and GLW. Am I thinking correctly, and are there any surprises here for me???

 

[Ridgerunner]

Simplistic comb genetics:
P is dominant pea, p is recessive not-pea
R is dominant rose, r is recessive not-rose

PP,RR = walnut
PP,Rr = Walnut
Pp,RR = Walnut, not sure if it is funky or not. I’d guess yes.
Pp, Rr= Walnut, not sure if it is funky or not. I’d guess yes
PP,rr = Pea
Pp,rr = Pea, but kind of funky
pp,RR = Rose
pp,Rr = Still a Rose
pp,rr = Single

Then there are modifiers that will give you some strange ones, like buttercup.

 

[Sonoran Silkies]

Simplistic comb genetics:
P is dominant pea, p is recessive not-pea
R is dominant rose, r is recessive not-rose

PP,RR = walnut
PP,Rr = Walnut
Pp,RR = Walnut, not sure if it is funky or not. I’d guess yes.
Pp, Rr= Walnut, not sure if it is funky or not. I’d guess yes
PP,rr = Pea
Pp,rr = Pea, but kind of funky
pp,RR = Rose
pp,Rr = Still a Rose
pp,rr = Single

Then there are modifiers that will give you some strange ones, like buttercup.

And smooth vs rough texture for rose combs; and duplex, which gives the V-comb of polish, houdans, et.al., as well as the horns on silkies. A different allele of duplex gives the buttercup comb. And the breda combless gene.

 

[lazy gardener]

Thanks RR. So, from what I'm reading, unless I want a walnut comb, which as I understand it could end up being a pretty big funky looking thing, I'd best keep pea with pea and rose with rose?

 

[Ridgerunner]

I haven't had any rose or walnut chickens, just the pea comb. I can't give you a good answer for that from experience but I'd be willing to try either. If you don’t like it, well they still taste good.

I'm not good at describing that "funky" looking pea comb. It’s still recognizable as a pea comb, just raised a little. I imagine it would get you disqualified if you tried to show, but it’s not outrageous. It’s just different.