Help with confusing chicken colors (should be sexlinked)

[Tiger248]

I recently hatched out 4 F2 satin giant chicks and they're currently 4 days old (pics are from 2 days ago). There should have only been 2 possible color outcomes, white pullets and cuckoo cockrels. But the chick in the first picture is black.

The parents were F1 satin giants, both coming from cuckoo silkie roosters over white jersey giants. The parents of the chicks pictured were a white rooster and a cuckoo hen.

How is it possible I got a 99% fully melanistic chick (it has a white toe on each foot and its does have feathers coming in but I see no barring what so ever, while the other dark chick is obviosly barring out) from this pairing when it should've been a sexlinked outcome?

Theres no way any other egg was hatched by mistake since I had them completely separate from any other chickens, and I have no fully melanistic birds. Is this some sort of oddity and will not fall in the sex linked category? could it be recessive genes popping up? I didnt think this was at all possible and any insight is appreciated.

 

[AinaWGSD]

If the roosters were barred they aren't sex linked. Sex linked chicks from a non-barred/barred mating requires the hen to be barred. If the male is barred he can pass on the barring gene to either male or female offspring.

I don't know if jersey giants are dominant or recessive white. But either way neither is useful for making sex linked chicks. Both hide other patterns and black-based colors so there could be just about any genes hidden by the white.

 

[Tiger248]

If the roosters were barred they aren't sex linked. Sex linked chicks from a non-barred/barred mating requires the hen to be barred. If the male is barred he can pass on the barring gene to either male or female offspring.

I don't know if jersey giants are dominant or recessive white. But either way neither is useful for making sex linked chicks. Both hide other patterns and black-based colors so there could be just about any genes hidden by the white.

Sorry I think my explanation was lacking, the pairing was a white male to a barred female. I thought explaining what the genetics of each parent was might also be helpful for figuring out why this pairing threw a melanistic chick.

 

[ABQ chicken keeper]

I recently hatched out 4 F2 satin giant chicks and they're currently 4 days old (pics are from 2 days ago). There should have only been 2 possible color outcomes, white pullets and cuckoo cockrels. But the chick in the first picture is black.

The parents were F1 satin giants, both coming from cuckoo silkie roosters over white jersey giants. The parents of the chicks pictured were a white rooster and a cuckoo hen.

How is it possible I got a 99% fully melanistic chick (it has a white toe on each foot and its does have feathers coming in but I see no barring what so ever, while the other dark chick is obviosly barring out) from this pairing when it should've been a sexlinked outcome?

Theres no way any other egg was hatched by mistake since I had them completely separate from any other chickens, and I have no fully melanistic birds. Is this some sort of oddity and will not fall in the sex linked category? could it be recessive genes popping up? I didnt think this was at all possible and any insight is appreciated.

Are the F2's supposed to breed true?

 

[Tiger248]

Are the F2's supposed to breed true?

No, I'm working on a project. But the coloring was supposed to be sexlinked

 

[debid]

Sorry I think my explanation was lacking, the pairing was a white male to a barred female. I thought explaining what the genetics of each parent was might also be helpful for figuring out why this pairing threw a melanistic chick.

Your white rooster is not a blank slate, white is amazing at hiding other colors. I thought this was an excellent explanation:

I don't know if jersey giants are dominant or recessive white. But either way neither is useful for making sex linked chicks. Both hide other patterns and black-based colors so there could be just about any genes hidden by the white.

 

[Tiger248]

Your white rooster is not a blank slate, white is amazing at hiding other colors. I thought this was an excellent explanation:

Ooh, I had no idea it worked that way, genetics are so interesting. I completely misread the other explanation, my apologies. Would that mean that the only rooster is the barred one since thats what the hen passed down?

 

[debid]

Nope. White hides barring. You have two light chicks that might have a hidden barring gene from mom. AND, your white rooster may have a hidden barring gene, too, which would mean the chick with a barring mark could actually be female. These simply aren't sexlinks.