Never allow CC roosters try to mate with any hen of any breed. Research AI breeding on youtube. There is a college professor that show how. It's really simple but takes 2 people to do it safely. A lot easier with chickens than 45lb turkey gobblers.
I have quite a few fully mature cornish but not the fastest growing strain. One hen is a pet now. She wants me to pick her up but no one else to touch her. She's a real daddy's girl. 4 giant roosters that are like small turkeys. We will breed 4-5 of these big boys to some of the off spring of...