I know there is lots of opinions on the humidity levels and also your location is part of that.I hatch at 73% humidity and have only had 1 not hatch and it was severely deformed.
I would really suggest adding a fan to your bator as well..it really helps. Being a still air how much oxygen are they getting? Not enough can really effect a hatch and cause lots of fully formed but not hatched little chicks.
I would really suggest adding a fan to your bator as well..it really helps. Being a still air how much oxygen are they getting? Not enough can really effect a hatch and cause lots of fully formed but not hatched little chicks.