Sex- linked Information

[donrae]

You can't use a black sex link rooster to make any type of sex link chicks. Black sex links are (pretty much) any non-barred rooster over a barred hen. Some color combo make it hard to see the white headspot at hatch, though. That's why the hatcheries use black based birds, it's the most contrast and easiest to see.

 

[apollora]

I have tried to read thru all the postings but might have missed this, if I cross a Black Copper Maran with my Silver Laced Wyandotte's will they be red sex linked? I read somewhere that the Marans have a brown red gene. Thanks in advance I really enjoyed reading thru the posts!

 

[jmac8679]

Am i right in presuming you cant get sex linked chicks from white silkies x buff orpington Cockerel?
Can you from silver spangled thuringians x buff orpington cockerel?
Advice would really be appreciated xx

 

[Tara80]

Jmac, it looks like that would work.
If I understand it correctly, any males with double gold genes and a female with a dominant Silver gene would work; I think.

I never really paid attention to sex-linking until I have been making a point to study this myself recently, but my dark cornish male bred one of my lakenvelder females and I have an AMAZINGLY beautiful golden lakenvelder looking female out of it. I'd imagine that any males from that combo though would just look like a bigger cornish-sized normal-colored lakenvelder. Very interesting.

 

[jmac8679]

Thanks for that, might just give it a go, may have to leave them to mature the first time just so I know for sure

 

[Ridgerunner]

I have tried to read thru all the postings but might have missed this, if I cross a Black Copper Maran with my Silver Laced Wyandotte's will they be red sex linked? I read somewhere that the Marans have a brown red gene. Thanks in advance I really enjoyed reading thru the posts!

I’m not convinced that will work, though I’ve never tried it. It’s not on Tim’s chart in the first post on this thread so I’m skeptical. There are two parts to making a red sex link. One is that the male has to be pure for gold and the hen has silver. That part would be right in your chickens. The other part is that you have to be able to see the difference in the down. That Black Copper Maran has Birchen. Birchen is pretty strong and can be a pain. You can try it and with the chicks side by side and see if you can tell a difference in the down. If there is a difference it may be pretty subtle.

If you do try it, come back to this thread and post what you see. I’d like to hear your results. Photos would be nice too. They help me remember as well as understand.

 

[Ridgerunner]

Am i right in presuming you cant get sex linked chicks from white silkies x buff orpington Cockerel?

This is really questionable from a couple of aspects. Silkies are often jumbled genetically. I’m never comfortable projecting what will happen with a Silkie. But the big question is what the underlying genetics are. Silver is the key to a red sex link. Silver will not make a chicken solid white. To make a solid white chicken you need either dominant white or two copies of recessive white. If you have dominant white, the color you see in the offspring depends on what other genetics are there. That’s real uncertain. If you have two copies of recessive white in the parent, that will hide anything else the chicken has, but one copy of recessive white won’t have much if any effect in the offspring. If silver is hiding under that recessive white, you might possibly get a red sex link with that cross. Maybe. Possibly. If. If barring is hiding under that recessive white, you may get a black sex link, if you can see the spot in the down. Maybe. Possibly. If. I sure would not count on either one.

Can you from silver spangled thuringians x buff orpington cockerel?

I don’t know the genetic make-up of that thuringian hen. A Buff Orp male will work but that hen may have Birchen. I think you will see a difference in the adult feathers, but I’m not sure at all you will see a difference in the down. If there is a difference it may be real subtle.

You can certainly try it and see what happens. I’ll flat out tell you I don’t know what your results will be.

 

[tadkerson]

I have tried to read thru all the postings but might have missed this, if I cross a Black Copper Maran with my Silver Laced Wyandotte's will they be red sex linked? I read somewhere that the Marans have a brown red gene. Thanks in advance I really enjoyed reading thru the posts!

Will not work. As Ridgerunner stated black copper are birchen and most birchen birds do not sex very well at hatch. There have to be other genes in the birchen bird for them to be sex-able at hatch ( with a high degree of confidence). Of course you have a 50/50 chance of guessing correctly.

I guess I need to add a chart of chickens that will not work but I can not add information to the post. The post has lost the editing button.

Tim

 

[tadkerson]

Am i right in presuming you cant get sex linked chicks from white silkies x buff orpington Cockerel?
Can you from silver spangled thuringians x buff orpington cockerel?
Advice would really be appreciated xx

From the first post:

ouote" The second important rule is that one should not use white birds in sex linked crosses. White birds that have the correct genotype can be used to make a sex linked cross but a breeder never knows if the white bird has the correct genotype. The authors advise concerning white birds and sex linked crossing is do not use white birds in sex linked crosses. White leghorns can not be used in any kind of color sex linked cross." end quote

silver spangled thuringians x buff orpington cockerel will work because they both carry a gene that will clear black from the down.

The birds must have true spangling and not mottling or false spangling.

Tim

 

[Arielle]

Quote:

Tim

TIm, you might ask Freds Hens, a mod, to edit the post. IMO the first post is enough-- if it isn't there, it's because it usually isn't a good choice.