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Pea comb is linked on chromosome 1 with the oocyanin gene and they are inherited together. With a single comb blue egg layer crossed to other single comb birds, he would not have a simple way to identify roosters that are homozygous for the oocyanin gene. By starting with a pea comb rooster, he can cross to single comb leghorns and in the F2, pea comb roosters and hens will mostly be homzygous for blue eggs.
My response was that he can do DNA tests for @$25 each to identify homozygous roosters. I did tests on 12 roosters earlier this year at a total cost of about $400. I culled all of the roosters with no oocyanin gene and with only 1 copy of the oocyanin gene. Now I have a flock with 3 mature roosters that 100% produce blue egg laying offspring. Oocyanin is a dominant gene where 1 copy makes the egg shell blue.
Whenever you do this hemin test it’d be wonderful to see the results.I post information for people interested on the subject and for those willing to follow and learn. I will be doing the tests myself I really don't care if anyone does it or not before me.
Do you have hatching eggs available?Also a Blue egg from a Arkansas Blue Pullet(on the right), Arkansas Hen(on left) and Olive egger on bottom
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