Okay, I started out with 12 Coturnix. Supposedly, there was only 1 rooster (I had no experience with quail whatsoever). Anyway, turned out there were at least 3 roosters in the bunch. I wanted to try incubating some of the eggs, and see if I could hatch out and raise some young. Out of 34 fertile eggs, 33 hatched. I had been reading different threads on here about breeding. Now, I am wanting the majority of the young I raise for meat purposes. BUT I would like some young stock kept for breeding purposes. I have read somewhere that I should only put hatchlings together....that I can't mix different hatches. So....how do I go about selectively breeding certain hens with a certain rooster??? Isn't it not good to breed a rooster to his hatch-mates??......I mean, how do I put a rooster from a different family in with non-related hens when I'm ready for some fertile eggs from them???