New duck mommy 2021
Free Ranging
My guess is the rollers are not properly turning the eggs. This will lead to death on the embryo
Try setting eggs and hand turning them the next batch and see if that makes a difference
Also move the eggs around instead of staying in the same spot
I do this with mine even if we use the turner so that the cold and hot spots that are in every bator give more equal temps to the egg
Also I only do ducklings and only run 40-45 % humidity till lockdown then jump up to 70-75 for hatch
To high of humidity will cause less moisture loss and can lead to hatching issues
Try setting eggs and hand turning them the next batch and see if that makes a difference
Also move the eggs around instead of staying in the same spot
I do this with mine even if we use the turner so that the cold and hot spots that are in every bator give more equal temps to the egg
Also I only do ducklings and only run 40-45 % humidity till lockdown then jump up to 70-75 for hatch
To high of humidity will cause less moisture loss and can lead to hatching issues