I have a question about roosters please...I have 2 roos and only 4 hens so I have kept the 2 roos separate..the one in with the hens has started getting aggressive towards me so he is about to loose his head. He (polish) is now in the pen with no hens (poor him) The eggs have been fertile from the polish. How long will it be before the eggs are fertile from the new roo? Thanks!