If you are considering breeding your own poultry remember not to use all of your girls, but only your best performers; the ones with the ideal traits that you would like to continue through to the next generation.
Keeping your rooster with the hens will result in frequently fertilised eggs, which can still be eaten at the early stages of development. Isolating the best hens with one rooster can result in a far better outcome, whilst leaving your other hens to keep on producing eggs for your consumption without any fear of eating a developing fertilised egg.