How many hens will you have per rooster? If you have 10 or less hens per rooster, probably they all will be fertile. If you want these for eating - don't worry. They taste the same and some people even think they're healthier. Just make sure to gather eggs 2-3 times a day, so a hen doesn't go broody. If she does, a chick may start to form, and you don't wanna eat that! If you gather them morning, mid-day, and check before you shut them up for the night you should be fine.