12 out of 15 is pretty good, especially for the first time with a cobbled together incubator. So congratulations with that hatch.
That Naked Neck gene is dominant so if your Turken have two copies of that gene like they are supposed it have none of those chicks are from the Turken eggs.
Black is a dominant gene so it is no surprise that you got chicks with black down from those roosters, again assuming they have the genetics they should. It will be interesting to see how those chicks feather out. In another month they should be almost feathered out. Don't be surprised if you see some patterns when they do, especially if that Copper Marans is the father. Leakage is pretty common when you have crosses like that. That's where random feathers can show up a different color than you would expect.
As long as you use these purebred roosters you will get similar results, that black is so dominant. But if you use one of the male chicks you just hatched with those hens or with the pullets you just hatched you will get a variety of colors and patterns. They are no longer purebred but are crosses. Their color genetics are all mixed up and can go together to form interesting colors and patterns.
That Naked Neck gene is dominant so if your Turken have two copies of that gene like they are supposed it have none of those chicks are from the Turken eggs.
Black is a dominant gene so it is no surprise that you got chicks with black down from those roosters, again assuming they have the genetics they should. It will be interesting to see how those chicks feather out. In another month they should be almost feathered out. Don't be surprised if you see some patterns when they do, especially if that Copper Marans is the father. Leakage is pretty common when you have crosses like that. That's where random feathers can show up a different color than you would expect.
As long as you use these purebred roosters you will get similar results, that black is so dominant. But if you use one of the male chicks you just hatched with those hens or with the pullets you just hatched you will get a variety of colors and patterns. They are no longer purebred but are crosses. Their color genetics are all mixed up and can go together to form interesting colors and patterns.