Friend and I were going to do a project of meat birds but it keeps being put off, we've decided to go full into it for Spring with an incubator and we kind of want to try a dual purpose bird we can self-sustain. I asked about the genetics of a broiler making chicken and well it became clear we would not be able to sustain and hatch our own broilers. So I just had a few brief questions and asking for your opinions. 1) If we hatch them out, in theory we will get 50/50 cockerels to pullets. Can they all live together until age of slaughter or will the roosters kill each other? 2) What is age of slaughter on your standard LF bird, we were thinking possibly Barred Rock or Speckled Sussex. Would 4 months be too soon, you think? 3) Kind of in relation to question #2, but opinion time.. what make good dual purpose breeds? What have you personally found to be the best?