We're talking about how long a hen can retain the sperm of a rooster after you separate her from the rooster. But if you are looking for a chicken specifically for meat then I would suggest the cornish XWao none of my chickens are good meat wise at 5 weeks. I must have the wrong chickens or feeding the wrong food to them. I have rir. I also heard that the meat is hard and needs to be put in a pressure pot. How and what breed do I need for meat