Egg shell color is either blue or non blue (white) that's one set of genes and it's not sex linked.
The brown coating is a whole different set of genes. It's said there's at least 13 genes for that. A few are sex linked so in theory when making green to olive eggers using the brown layer breed rooster over the blue layer breed hens can up the odds of producing darker green eggs..
In my experience though it didn't make a notable difference.
The brown coating is a whole different set of genes. It's said there's at least 13 genes for that. A few are sex linked so in theory when making green to olive eggers using the brown layer breed rooster over the blue layer breed hens can up the odds of producing darker green eggs..
In my experience though it didn't make a notable difference.