I currently have one rooster and a male chick, and I'm wondering how it will be possible to specifically breed one rooster to a hen given that I read sperm lasts around 2 weeks after fertilization, and I will have two roosters. Would the hens have to be separated from all roosters long enough for them to stop laying fertilized eggs so they can be fertilized by the desired rooster? Or does a new rooster mating with them cause him to be the new fertilizer of the eggs?