Double barring vs barring

[JadeFarms]

How do you get a double barred chicken and how do you tell if it’s double barred? This is my barred rock at 3 1/2 months that I believe is barred.

 

[MarkJr]

Believe double barred = male

 

[Egghead_Jr]

Yes that pullet is barred. Barring gene is one of the genes that only has one loci on female chromosome. These types of genes will have two locations, as normal genes do, on the males.

You'd know if a male had both genes or not by it's parents. If unknown lineage then you would know by test mating it. If half the pullets hatch unbarred then he only had one.

 

[JadeFarms]

Yes that pullet is barred. Barring gene is one of the genes that only has one loci on female chromosome. These types of genes will have two locations, as normal genes do, on the males.

You'd know if a male had both genes or not by it's parents. If unknown lineage then you would know by test mating it. If half the pullets hatch unbarred then he only had one.

Okay that’s really cool, I’m gonna breed my black ameraucana roo to her when she starts laying. Would I be able to know by doing that?

 

[Egghead_Jr]

She only has one barred gene, all barred pullet/hens have one only.

If covered by a black cock then offspring would result in half the cockerels being barred and carrying only one barring gene. All other offspring would be black.

 

[The Moonshiner]

Black rooster over barred hen results in all the cockerels being single factored barred and all pullets black.

 

[JadeFarms]

Thanks for the help

 

[JadeFarms]

Would that be the same for cuckoo? Would the cockerels be cuckoo and the girls be black? Sorry for so many questions

 

[TheOddOneOut]

Barring genetics for dummies like me:
Males of a barred breed carry two barring genes. Females, one. So, if they breed, the female passes it to her son, the male passes it to his son and daughter. So, the females will always be single barred, never double.
A single barred roo, aka had a double barred dad and non barred mom, or a barred mom and non-barred dad, onto a single barred hen results in all offspring being single barred.

 

[JadeFarms]

Barring genetics for dummies like me:
Males of a barred breed carry two barring genes. Females, one. So, if they breed, the female passes it to her son, the male passes it to his son and daughter. So, the females will always be single barred, never double.
A single barred roo, aka had a double barred dad and non barred mom, onto a single barred hen results in all offspring being single barred.

Thanks, I always thought double barring was beautiful! I just didn’t understand the genetics. I think I’ve about got down the barring genetics so I was just curious about the double barring.