I got 12 chicks from Tractor Supply this past April. And this is my first time with chickens. One of them turned out to be a cockerel, and we are going to keep him. Last night, we were talking about letting the chickens raise the baby chicks from next spring (which we aren't really sure about). Or just putting the fertilized eggs in an incubator and selling the chicks when they get old enough. But, like I said, I got the chicks from tractor supply so I don't know whether or not to actually let them mate, because they may be related. Is there a way I can find out? Also, I have 6 Light Brahmas (including the cockerel), 3 Rhode Island Reds, and 3 Tetra Tints. Will he mate with each breed?