Here is a question for those who like to think, not just follow (talking chicken eggs ). If she keeps turning them until hatch why it is recommended to take eggs off the egg turner or stop turning them (manually) at day 18? If she does not (stop turning them) why bother to stop turning them (at day 18) ? Also does the broody increases humidity at day 18? I am sure this one will raise some ayebrows. I just like to think out of the box .... sometimes.