Interesting. I try to have my new layers in a flock with my new roosters late in the year. I cannot easily find 2-3 roosters that have been raised together to introduce to the layers. When I introduced the 5 Dark Cornish roosters, now 7mo, they were 4 mo and I had to keep picking them up and closing all birds in the coop at night because the hens beat them up and kicked them out.
Payback is a bitXh, so NOW the roosters are beating up on the hens.
(We will be eating one and sending another to freezer camp this week.)
3 roosters per 7 layers will be plenty. I just wanted to increase the egg fertility for when I incubate next month.
I will be raising chicks this summer, butchering ALL 2-3mo roosters--they are like cornish hens size-- and raising my layers for next year. I will go to Rural King for my roosters, raise them separatly and introduce them to the hens come November. I do not believe in inbreeding, so my Dark Cornish/EE and Dark Cornish/SLW hens will most probably have EE roosters, or, maybe 2 EE's and 1 White Leghorn.
I'm into daily eggs and filling my freezer. Yummm!!!!
One good thing--they ALL like some of the tender young weeds (that grow tougher as they get bigger) to much on, so I weed daily. My roosters especially like them, and save me some commercial feed.