Color genetics thread.

[Hillbilly Mom]

I breed a Jubliee Orpington Hen to a Blue Oprington Rooster and go blue and black chicks. What do I breed them to to get Blue Jubliee? Will I breed them back to a Jubliee Rooster?

 

[junebuggena]

I breed a Jubliee Orpington Hen to a Blue Oprington Rooster and go blue and black chicks. What do I breed them to to get Blue Jubliee? Will I breed them back to a Jubliee Rooster?

The speckling gene is recessive. You must breed the blues back to a Jubilee to get the blue and the the speckling. However, it make take a few rounds of hatching before you get even one with right combination of traits that you are after. Only 50% of the chicks will get a blue gene. And 50% will be speckled. But there is no guarantee that you will get a chick with both speckling and the blue.

 

[AmandaMBG]

Curious as to what my Austrolorp Roo over these two girls would potentially be. All black or a mixture of black/white?
Hen #1

Hen #2

 

[junebuggena]

Curious as to what my Austrolorp Roo over these two girls would potentially be. All black or a mixture of black/white?
Hen #1

Hen #2

The first one looks like she's dominant white. If that's the case you can expect white chicks from her.
The second one looks like she might be splash. If that's the case, she will produce all blue chicks.
The extended black pattern of the Australorp will be dominant over the hens' pattern genes.

 

[Wappoke]

I breed a Jubliee Orpington Hen to a Blue Oprington Rooster and go blue and black chicks. What do I breed them to to get Blue Jubliee? Will I breed them back to a Jubliee Rooster?

jubilee x blue = F1 blue and F1 black offspring

jubilee roo x F1 blue offspring= F1 BC offspring select the best mottled and blue tailed hen(s) to backcross to the jubilee rooster 1 in 8 of the offspring should be what you want. I would hatch about 25 chicks. Keep hatching until you get a hen or hens that have blue in the tail and hackles, mottling and a fair amount of red on the body

jubilee roo x F1BC= some good looking offspring

 

[AmandaMBG]

Yes she is splash. Awesome and thanks

The first one looks like she's dominant white. If that's the case you can expect white chicks from her. 
The second one looks like she might be splash. If that's the case, she will produce all blue chicks.
The extended black pattern of the Australorp will be dominant over the hens' pattern genes.

 

[AmandaMBG]

So I have a question that is just a curiosity.

Why is it that some cuckoo hens seem to have less pronounced barring than others? From what I've read, the barring gene being sex linked means a hen will only ever have one copy of it, which is why barring is much more pronounced on a rooster with two barring genes. That makes sense but I've seen a lot of variation on the barring of cuckoo hens as well. Some barred rock hens I've seen pics of look very barred while my cuckoo marans have much more black.

 

[Chicken5555]

So I have a question that is just a curiosity.

Why is it that some cuckoo hens seem to have less pronounced barring than others? From what I've read, the barring gene being sex linked means a hen will only ever have one copy of it, which is why barring is much more pronounced on a rooster with two barring genes. That makes sense but I've seen a lot of variation on the barring of cuckoo hens as well. Some barred rock hens I've seen pics of look very barred while my cuckoo marans have much more black.

Not sure if this is right or not, but I remember reading once that barred chickens can be either black barred or blue barred. That could explain why some look like they have more barring than others. @junebuggena and @Wappoke are very knowledgeable and they would be able to answer your question much better than I can.

 

[draye]

So I have a question that is just a curiosity.

Why is it that some cuckoo hens seem to have less pronounced barring than others? From what I've read, the barring gene being sex linked means a hen will only ever have one copy of it, which is why barring is much more pronounced on a rooster with two barring genes. That makes sense but I've seen a lot of variation on the barring of cuckoo hens as well. Some barred rock hens I've seen pics of look very barred while my cuckoo marans have much more black.

What I've read in this is that Cuckoo is not as crisp and is blurrier than Barred. That is the difference between Barring and cuckoo.

 

[Wappoke]

So I have a question that is just a curiosity.

Why is it that some cuckoo hens seem to have less pronounced barring than others? From what I've read, the barring gene being sex linked means a hen will only ever have one copy of it, which is why barring is much more pronounced on a rooster with two barring genes. That makes sense but I've seen a lot of variation on the barring of cuckoo hens as well. Some barred rock hens I've seen pics of look very barred while my cuckoo marans have much more black.

Birds with the crisp barring have modifiers cause the barring. Columbian and slow feathering may be two of the modifiers- i have never read any research that explains why one bird is crisp and another is blurry. It does have a genetic basis but what genes or locus is responsible has not been determined. It is possible that the barring gene itself is different and causes the crisp barring. To determine what may be causing the expression of crisp barring, I would do reciprocal crosses using normal barred birds with crisp barred birds and see what the F1 looked like. Then do some backcrosses and F1 crosses to see what happened.

The offspring phenotypic ratios would indicate the genetic possibilities.