Eggs Blue on The Inside? Celadon Genetics?

[FloorCandy]

I know this thread is over a year old, but I'm just reviving it as my single laying hen is laying eggs with blue inside and wondered wether anyone ever figured out the mystery?
In Australia where I am it's super difficult to find celadons so would be cool to know that there's a carrier gene here!

When I cross a full celadon to a non, it’s been my experience that the offspring produce eggs that are blue inside. Some are both blue in and out, but have normal spots. I think it’s safe to assume that eggs that are blue inside are from het celadon carriers.

 

[QuailTail]

When I cross a full celadon to a non, it’s been my experience that the offspring produce eggs that are blue inside. Some are both blue in and out, but have normal spots. I think it’s safe to assume that eggs that are blue inside are from het celadon carriers.

Thank you! What does het mean?

 

[FloorCandy]

He

Thank you! What does het mean?

Heterozygous. Homozygous means it has two copies of the celadon gene, heterozygous means it has one copy, aka a carrier.

 

[QuailTail]

He

Heterozygous. Homozygous means it has two copies of the celadon gene, heterozygous means it has one copy, aka a carrier.

Gotcha, thanks for explaining - not up to scratch with my breeding lingo!