indigo flats
Chirping
Since turkey eggs are larger than chickens eggs wouldn't they require a different humidity for the first 24 days of incubating?
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Size doesn't necessarily have anything to do with humidity requirements, despite the change in surface area to volume ratio. Rather, it has to do with the permeability of the egg, and I assume waterfowl eggs will be subjected to a higher humidity in the wild since the nests are closer to water, while a desert animal would normally incubate at a much lower humidity. I've only incubated one batch of turkey eggs and I incubated them alongside my chicken eggs. Most things I dry incubate, with the exception of guineas. They have thicker shells but for some reason seem to need a higher humidity.
I somewhat disagree. Size does play a roll as well as shell thickness and porosity. I had silkie eggs last year that I was waiting on to receive. I had gathered 4 of my nn/ee eggs, which are jumbo sized. When the silkie eggs came they were small. Bantam small. I had reservations about setting them with the smaller eggs because I need to run dry for them to loose enough. The silkies needed a slightly higher humidity. I had to run 45% for them and my jumbo eggs did not loose enough moisture. 2 managed to hatched ok, but were extra wet, the other two grew too big, couldn't turn. One pipped through the membrane at the bottom, but didn't pierce the shell and drowned on the extra fluid. The other pipped through the shell at the bottom, luckily I noticed it and was able to widen the pip and set her upright to keep her from aspirating on the extra fluid . She was a bit weak at first but made a full recovery.
Bigger the egg, the more moisture they need to loose. Unless the big eggs do have relatively thinner shells that loose moisture faster than normal, to average out the moisture loss, I would do significantly different sized eggs separately. I believe it's safer to say the size in conjunction with shell quality, will determine the success. If I ran humidity low for the silkies, they would have lost way too much moisture.