First off, I hope I'm in the right section LOL. OK this is my question for next year, in advance. So far I have 2 roos (a few more by next year) and I only want my lighter colored roos to breed my hens (No black chicks for me thank you. I already had 90% or more black this year). So basically the question is how many days in advance do I have to separate the unwanted roos so that their sperm wont be in the eggs that I'm going to set to incubate? Am I making sense?