Keep males together and well away from the females, feed them up to grow as quick as possible and eat them soon. I seem to vaugly remember that if you restrict daylight it slows down their time maturity and will lessen the problem.
If they do start fighting it’s gets rather nasty as they go for the back of a the head like a mock mating (showing dominance) and go for each other’s eyes if they fight. Once a couple of them start they will not stop until you stop them. We used to kill the boys as soon as they started crowing, (so were sure they were boys) pluck and clean them and pop them in the freezer until we had collected enough for a meal.
If you only want eggs and not to breed, eat all the boys, they are a pest to the girls too once their blood is up.