I had a flock of Ayam Cemani’s one rooster and 10 hens had great luck with fertility and hatch rates. I hatched a batch a chicks and from the batch I had a beautiful male so I decided to make him the man of the flock. I sold my older rooster and now I have absolutely NO fertilized eggs. He is about a year old so he should be doing his job but I’m lost!!!! Any help??