How many hatch way to many variables to figure. From none to all.
Most of mine are in Auto turners. But at least 3 times or more a day. Mark eggs with x and o. If you start day with an x make sure to end on an o. Always an odd number.
I have two farm innovators and one hovabator. I've also got the stuff to build a cabinet incubator that will hold 480 chicken eggs. Its on my "To DO" LIST that never seems to end!