% of ducks eggs hatching

[Nananola]

We have hatched 2 sets of 18 Kahki Campbell eggs in a incubator with a 50% hatch both times, is this normal?

 

[JacinLarkwell]

We have hatched 2 sets of 18 Kahki Campbell eggs in a incubator with a 50% hatch both times, is this normal?

Is there a seperate calibrated thermometer in the incubator?

 

[SilverBirds]

There are different factors that come into play when deciding if a hatch rate is normal. Were the eggs shipped? Do you have a calibrated thermometer?