I have three hens one of them has been laying for about two weeks. Now I would like to buy a roster to mate with the hens. Here is where I need help. I have read that a roster needs more than just a few hens. but can I mate the roster with a hen for a few days, then keep the eggs from that one hen? And If I do that will the hen store the rosters "stuff" or will I need to keep letting them spend time together? I eat my eggs. and I dont know if I can eat a fertanized egg?