I have some expensive show breed eggs on the way, and have only hatched 1 chick out of the last 3 batches. The first was low humidity and none of the eggs hatched.. one that I opened had a deformed foot. Second I had temp spike Third hatch temp was stable at 99.5, humidity, 50 last 4/5 days not above 60-70 (Had to be 4/5 days as I was hatching another in same bator) I opened the bator to get the 1 early chick out since the others weren't due for another few days.. and opened the bator to take hygrometer out. Would that have killed the eggs in shell? or the longer lockdown causing moisture in shell? The dead chicks had fully absorbed yolks, still had veining, hadn't pipped, membranes were normal? Could it be the incubator? I just don't get it. This time i'll try dry incubation. I can't lose anymore like this, it's horrible when they get right to the end then die. I really feel like getting to day 20/21 then opening them all so at least they have some chance of life?