thats really the benefit of using incubator. you dont stressed out your golden hen to sit the eggs. the time that she sits the eggs will be spared, instead nourished her again and condition to another round of laying in the broodpen. for this the aid of incubator is for mass production by the golden hen. but as i said you have to take an extra load of work especially using manual incubator like what am using. but it demands most of my time during incubation period.