How would one determine anything from infertile eggs?When I had to cull some chicks from my hatch I used the gassing method. I was concerned about being able to cleanly dispatch something so small with shears. It worked well and the chicks did not seem to suffer, there is still twitching, but it looked fairly painless.
So sorry for your loss
Consider a test run with some infertile eggs and a calibrated thermometer to figure out your incubators settings? That way no embryos are risked and you can get a good idea of how far out it is.
Don’t let the setbacks deter you from hatching... if you didn’t feel badly for the chick we would all be worried about you, but you did your best and future chicks will benefit from your experiences with this hatch.
Hugs
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