There is no specific time, it normally depend on the rooster. Some of my roosters have started mating early, 6-7 weeks and others will take their time! I have had a rooster that never mated until he was 1 year old! And when he started mating he was infertile . If you have other roosters they...
Hey,
A rooster will dance around a hen until she squats down for him. When she squats he will mount her and they will rub their butts together to fertilize the hens eggs! Another way that a rooster will mate is when he chases a hen around like mad until she stops and squats for him to mate her...