Way more chicks than I've hatched! I probably wouldn't mark and weigh all the eggs if I had a cabinet incubator. I probably won't mark and weigh all the eggs forever, but it's my own way of reassuring myself that I'm doing okay. I even built a spreadsheet to calculate how much the eggs should weigh as well as a place for candling notes. But then, I'm a nerd like that.x2. 35% and above is time to get some humidity OUT. 35% is about where mine stays naturally.... and it works well. I incubate RARE breeds too and have almost 100% hatches when they make it to lockdown. If they develop they hatch. I have hatched Wyandottes, NH, EE, Ameraucanas, WL, Cream Legbars, Rhodebars, silkies, semeras, RIR, d'Uccles, Olive Eggers, Marans, Rocks, Orpingtons, I am sure I am missing something for ALL those breeds dry incubation worked best.... last year I hatched almost 2000 chicks (shipped eggs and mine) This year it will be MANY MORE.
As for the Marans eggs... their shells are not TOO thick for a chick to hatch. The SANDING is supposed to help the moisture evaporate. It is the COLOR of the egg that people assume causes the eggs not to hatch. In reality from hatching HUNDREDS and HUNDREDS of marans.....it is the chicks DROWN from using too high a humidity. Dry incubation seems to be the universal hatch method with most people that raise marans. I have never sanded and have great hatches with my marans.
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