Putting a Blue Wheaten male over Wheaten females will produce some Blue Wheaten young. It will also produce some wheaten young and this is where the problem can start,
if you put these back in the wheaten pen you will have put the Blue Wheaten gene into your wheaten. These crosses should be left in the blue wheaten pen or culled.
If you watch the egg ads you will also see the Black Copper and Blue Copper in the same pen and selling eggs from the pen. For the Black Copper you do not want the Blue mixed.
First thing most people want to do when they start with Marans is mix all the colors and see what they get in young. Nothing wrong with this as they are the ones paying for the feed. The only problem I have with this is they sell all the eggs they can to other new Marans people , and eventually they will leave the Marans because of all the junk.
First of all WELCOME BACK DON!!!!!!
No..........the
Wheatens produced from a Blue Wheaten to a Wheaten mating
will not carry the blue gene, ONLY A BIRD THAT IS BLUE CARRIES THE BLUE GENE. So putting a Wheaten produced from a Blue Wh x Wheaten back into a Wheaten breeding pen will not hurt one thing and blue cannot be passed on this way...it is simply a Wheaten no blue gene reccessive or hiding.
Blue x Black will produce 50% blue and 50% black these black offspring DO NOT CARRY the blue gene.....they are Black, they cannot pass along a blue gene to their offspring if bred back to a black bird.
The only way what you are describing can happen is that if someone has a blue bird that appears black, this is the importance of test mating. Blues that are so dark can pass as Black and unsuspecting people may not know it and then breed them, but this does not mess with the Black genetics. Blue is just a diluter gene that's all.