Slothinc
Crowing
- Apr 15, 2020
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Ooooh, you’re so right! Sorry @Radrussie I got confused there! Listen to @Ridgerunner on this one!I do not agree. Since the blue eggshell gene is dominant she may have only one blue eggshell gene at that gene pair. She will always lay a blue or green egg. But unless she has two blue eggshell genes at that gene pair it is 50-50 that she will pass that blue eggshell gene down to any individual chick. So there is a chance he carries a blue eggshell gene but not a guarantee.
It's still sound advice. I only hatched blue or green eggs and kept my replacement hens and rooster from them each year. I got lucky and within three generations every hen was laying a blue or green egg. If the Blue eggshell gene were a recessive gene it would be easy. But it is a dominant gene so the "non-blue" can hide from you.
So yes if he came out of a blue/green egg and you don’t know if the hen is homozygous for that gene, you’ll potentially have a boy with zero blue egg genes. I’d just encourage you to keep track of every generation. Write down who the parents are as best as you can and who hatched out of which color. I think you can still work towards having all blue/green layers! After you hatch eggs from a rooster if you keep some of his daughters and see what color they lay, you’ll have a pretty good idea of whether or not he carried blue. This is a very fun project!