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The rule of thumb is to have 1 rooster for every ten hens. So, if I were you I would be thinking about what to do with all those roosters. My roosters are almost 18 weeks old and have been trying to mate with my hens for about 3 weeks. If you choose to keep more then 1 rooster, then they "should" be fine together, because they are raised together. This of course is in a "perfect world", sometimes they don't do well together. You will just have to wait and see.
Hope this helps!!