If a rooster has apparently gone sterile, will he come back when summer comes? I've tried to set at least 30 eggs, and they all look sunny and bright inside when I candle them a week or ten days later. He is with five hens. Unfortunately, he is a spectacularly nice little rooster, and I would really like to get some chicks out of him. Any thoughts on this? Can I give him some special kind of feed that will help him or is he gone for good?