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Discussion in 'General breed discussions & FAQ' started by bigpapa69, Mar 21, 2013.
has anyone ever had a chicken that should lay a colored egg but dose not
Happens all the time. It’s genetic. It's happened to me.
There is one gene that determines if the base color is blue or white. Green or brown is just brown on top of blue or white. The blue/white gene comes in a pair with the blue dominant. That means if just one of the genes is blue, the hen will lay a blue or green egg.
When the hen gives her genetics to the chick, it is purely random which gene she gives. If she has one blue and one white gene, the chick could get either. Same with the rooster, but since the rooster doesn’t lay eggs you really don’t know what gens he has to pass down to start with.
I’m guessing that chick hatched out of an olive egg. The mother had one blue and one white gene and gave the pullet a white. The father also contributed a white. Now the pullet is laying a brown egg.