I have a lot of NNs with the blue egg gene. When I set up my breeding pen, my rooster that's the strongest carrier of the blue egg gene will be paired mostly with blue/green egger hens.
That will work. How is that roo's neck that will be used? The reason why I am asking is because I want the blue egg's to go with my blue/green egg laying hens, to bring out more of the blue color in the egg's. That is what I want my second pen to be made to contain. I still want a clean neck NN to be able to breed Charley's Nn daughter's that lay the tan egg's.