I hope this makes sense because I cannot find an answer on google search ... my wording is probably terrible. I have 20 hens and one rooster. I only want fertile eggs from 9 specific hens (3 FBCMs and 6 EEs). I assume there are too many girls to assure higher fertility rates, so separating them makes sense (right?? I'm new at this). They are all 27 weeks old and some of their eggs are not yet full size. My questions: 1. WHEN (or at what age) should I separate the 9 and pen them up with the rooster? 2. Can I put them all back together at night? 3. How long should I leave them separated? 4. When do I start collecting their eggs? I want at least 20 more pullets ... so .... 5. Is there a trick to selecting only fertalized eggs that are female? I know some believe the more pointed eggs are probably male and the more rounded eggs are probably female ... but does anyone have experience with this? I'm sure I have more questions but that'll do for now. Thank you!