I just started running breeding pens for specific breeds of chickens. Everyone is young they have just begun laying in the last month or two. I am running 2 roosters for 6/7 hens. I am having poor fertility could this be they are still young? Could running 2 roosters in the same pens (they have not fought really) be a problem. Should I remove the roosters and reintroduce them to the girls after a week or two? Any idea's would help. I was even considering lumping all the girls in one barn and leaving the individual roosters in their breeding pens for the winter and reintroduce in the spring. Like I said any ideas would help.