how many roo's can be kept together? I plan on having maybe 30 hens, and would like 3 roo's. Right now I have 16 hens and 1 roo, a BA, but would love a LavOrp, and a SLW. I really would not able to keep each roo in their own pen with a group of hens. Also, how long do you have to have a roo and hen together by themselfs before you know that the chicks from that hens eggs will be from that roo.