Blue Amerucana x white legorn.. sex linked?

[bigz1983]

I had a hen go broody she hatched 3 blue Amerucana rooster crossed with white legorn hen chicks.
They are around 8 weeks old now and noticed that out of 3 the pullet has slate legs and the 2 roosters have yellow legs.
Is this just a coincidence or are they sex linked?

 

[1muttsfan]

What color are the chicks?

You can try running it through the chicken calculator - don't be intimidated, there is a line in English where you select the colors
http://kippenjungle.nl/Overzicht.htm#kippengenen

Sex links are produced in a few ways - by crossing a barred hen with a non-barred rooster (eg black sex-links), or by using the Silver gene (red sex-links). The rapid feathering gene is also sometimes used.

A white Leghorn can be used for black sex-links, but you would have to use a barred rooster.

For information about sex link crosses, look here:
https://www.backyardchickens.com/ar...rs-what-they-are-and-how-to-breed-them.65934/
Or here:
https://backyardpoultry.iamcountryside.com/chickens-101/understanding-sex-link-hybrid-chickens/

 

[The Moonshiner]

What color are the chicks?

You can try running it through the chicken calculator - don't be intimidated, there is a line in English where you select the colors
http://kippenjungle.nl/Overzicht.htm#kippengenen

Sex links are produced in a few ways - by crossing a barred hen with a non-barred rooster (eg black sex-links), or by using the Silver gene (red sex-links). The rapid feathering gene is also sometimes used.

A white Leghorn can be used for black sex-links, but you would have to use a barred rooster.

For information about sex link crosses, look here:
https://www.backyardchickens.com/ar...rs-what-they-are-and-how-to-breed-them.65934/
Or here:
https://backyardpoultry.iamcountryside.com/chickens-101/understanding-sex-link-hybrid-chickens/

A white Leghorn can be used for black sex-links, but you would have to use a barred rooster.

Don't work like that.

Yes you can use shank color for sex links in certain crosses with slate shanks involved.
Sounds like that's what you got but that's all I'm gonna say because I'm not certain what you're working with.
A true Ameraucana crossed with a leghorn would not produce any yellow shanked offspring.

 

[NatJ]

I had a hen go broody she hatched 3 blue Amerucana rooster crossed with white legorn hen chicks.
They are around 8 weeks old now and noticed that out of 3 the pullet has slate legs and the 2 roosters have yellow legs.
Is this just a coincidence or are they sex linked?

There is a gene on the Z (sex) chromosome that affects skin color, and I think that's what you have here: dark legs on the father & daughters, light legs on the mother & sons.

A true Ameraucana crossed with a leghorn would not produce any yellow shanked offspring.

I agree, the light legs on the sons should be white, not yellow, if the "Ameraucana" had the slate legs that are correct for that breed. I'm guessing this "Ameraucana" is an Easter Egger. But as long as he's got dark legs (slate or willow), he can still produce sex-linked chicks when crossed to the Leghorn hen with her light (yellow) legs.

Sex links are produced in a few ways - by crossing a barred hen with a non-barred rooster (eg black sex-links), or by using the Silver gene (red sex-links). The rapid feathering gene is also sometimes used.

Yes, all of those genes can be used for sex links. So can the chocolate gene, and the gene "Inhibitor of dermal melanin." It causes light skin, but the actual name is quite a mouthful! The kippenjungle calculator lists it as Id for the dominant that causes light skin, and id+ for the recessive wild-type that allows dark skin.

 

[bigz1983]

There is a gene on the Z (sex) chromosome that affects skin color, and I think that's what you have here: dark legs on the father & daughters, light legs on the mother & sons.


I agree, the light legs on the sons should be white, not yellow, if the "Ameraucana" had the slate legs that are correct for that breed. I'm guessing this "Ameraucana" is an Easter Egger. But as long as he's got dark legs (slate or willow), he can still produce sex-linked chicks when crossed to the Leghorn hen with her light (yellow) legs.


Yes, all of those genes can be used for sex links. So can the chocolate gene, and the gene "Inhibitor of dermal melanin." It causes light skin, but the actual name is quite a mouthful! The kippenjungle calculator lists it as Id for the dominant that causes light skin, and id+ for the recessive wild-type that allows dark skin.

The rooster is a true Amerucana from a breeder.

 

[bigz1983]

What color are the chicks?

You can try running it through the chicken calculator - don't be intimidated, there is a line in English where you select the colors
http://kippenjungle.nl/Overzicht.htm#kippengenen

Sex links are produced in a few ways - by crossing a barred hen with a non-barred rooster (eg black sex-links), or by using the Silver gene (red sex-links). The rapid feathering gene is also sometimes used.

A white Leghorn can be used for black sex-links, but you would have to use a barred rooster.

For information about sex link crosses, look here:
https://www.backyardchickens.com/ar...rs-what-they-are-and-how-to-breed-them.65934/
Or here:
https://backyardpoultry.iamcountryside.com/chickens-101/understanding-sex-link-hybrid-chickens/

The chicks are white

 

[Sara S]

Punnett squares for chickens I have no idea this just reminded me i

 

[nicalandia]

This is a id+ vs Id sex linked cross, Ameraucana are id+(dark shanks) and Leghorns are Id(sex linked dermal inhibitor) so they have clear shanks, so the cross will produce dark shank pullets and light shank males, as to where do the Yellow/White skin color is coming from, I have had plenty of production type White Leghorns with white skin, as with many production type leghorns, their breeders don't care the color of their skin, here in Nicaragua most are white skin because the spent hens are expected to go to the market and here they just don't like yellow skin(they think it has gone bad)

 

[bigz1983]

Don't work like that.

Yes you can use shank color for sex links in certain crosses with slate shanks involved.
Sounds like that's what you got but that's all I'm gonna say because I'm not certain what you're working with.
A true Ameraucana crossed with a leghorn would not produce any yellow shanked offspring.

Yes you are right the males have white legs not yellow my bad