Or, set the eggs 1 week apart and they should all hatch about the same time.OK I may have F*&k%d up. But will give it a try anyway. The Only difference between the two sets of eggs is one hatches at 21 days and one hatches 28 days. The Staggered hatch search I did came up with three hundred different conversations on the subject.
There are two schools of thought.
One:
To use a second incubator as a hatcher. The thought being raising the humidity will drown less developed eggs.
Two:
To use the same incubator and take out a couple of rails for the early hatchers. And No difference in hatch rate for the rest to have gone through three days of elevated humidity.
We recently discussed the study about turning eggs after the fourth day. Part of lockdown is to take the eggs out of the turner. So my thought is to put them all in egg cartons after taking out the turner then raising up the humidity on day 18. Then after day 21 letting the humidity go back to normal.
So my thought is use the Same humidity for both hatches not different. Take out the egg turner at day 18 and prepare for the first group, and not worry about turning the others.
Call it an experiment unless I can locate a spare incubator.
deb
then everyone will be the same age.
RobertH