I have no experience with this at all. We float tested two Coturnix eggs. One MIGHT have wobbled but I have my doubts the other did nothing so I did my first eggtopsy. It looked to be a fully developed chick. I started at the air cell end and slowly worked my way around and down. The membrane didn't seem overly moist or dry and there was a little of the yolk left. Is there anyway at all to tell when it stopped developing and why? We left the other egg in the incubator and I'm giving it one more day. I have about 40 eggs in my garage so we can try again in a day or two,
Day 20 Eggtopsy
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The temp was steady the entire time between 99.5 & 101. The last few days I bumped up the humidity to around 50-60%. I'm thinking to go ahead and discard the last one and start the 40 I have waiting; They have been stored in the garage instead of at room temp in the house. I'm slowly getting there maybe
I had a similar situation. Ive built and am testing a better incubator, with air circulation via a fan, uniform stable temp and i dont have to manually turn each egg or open the incubator.
I had a couple of chicks make it until the very end and never pip. I know it was instability in temp, too much fluctuation and non-uniform (no fan). I believe the time of the year made it more difficult. Daily/nightly temps have been fluctuating drastically. Humidity crashes... All reasons to have a good incubator...