Barred Genetics

[DarkAngelPoultry]

Say you have an Ayam Cemani x Cuckoo Maran hen that is barred.

She then mates with a very dark Ayam
Cemani and hatches some chicks. Some will be barred, some will be black.. right?

Now let’s also say one of them is a dark barred rooster. If he mates with her, what will be the genetic outcome? What % will be barred?

If that barred rooster mates with an Ayam Cemani hen, what will be the % of barred chicks?

 

[TexasBlues]

 

[AinaWGSD]

Excellent visual chartBarring is sex linked, it is only present on the Z chromosome. Since males are ZZ, males can carry two copies of the barring gene but females, being ZW, can only carry one copy.

So an Ayam cemani (non barred) rooster over a cuckoo hen will result in solid black females and barred males with only one copy of the barring gene.

Dark barred birds are birds that only have one copy of the barring gene (two copies results in a wider white stripe on the feather, which results in an overall lighter colored bird). So a dark barred male over a barred female will result in a 75% chance of barred chicks (all males and half of females) and 25% chance of solid female chicks.

A dark barred male over an unbarred female should give you about 50% chance of barred chicks which could be either male or female.