I have about a 1 year old hen who is laying eggs in a nest box. How many eggs will it take before she starts incubating them? I do have a rooster and im pretty sure the eggs are fertile. They are rhode island reds.
Going broody has nothing to do with the number of eggs under a hen, it is a hormonal change that takes place. Some breeds never go broody. There is no way to tell when, or if, she will go broody (as far as Ive been told) until it happens. I'd start collecting the eggs and using them. The fertility starts to drop off after a week, so you are just letting them go to waste right now.