I am very close to having to replace my Buff orp roo. He has gottem WAY TOO aggressive. He now comes at me and my sons, even thru the fence. I have an opportunity to get a 10 week old, hand raised roo whose father has a very docile, tame temperment. My boys are enjoying raising baby chicks and selling them at the local livestock auction....I dont want to hinder their excitement and enthusiasm to do a little work. If I replaced this rooster, how long til this young rooster is mature enough to mate successfully? THANKS