The incubator got unplugged for an hour... would that of killed the duck eggs?

[JaimeRoxMySox]

I have 5 duck eggs that have been incubating for 6 days now. I just discovered the incubator got unplugged. The temperature had dropped down to 75 degrees so I'm guessing it's been out for about an hour now. Would this of killed the forming ducks?

 

[sumi]

Developing eggs can withstand cooler temperatures for short periods. They need to do this as the broody hen/duck will need to get off the eggs occasionally to eat, drink etc. Cooling down like this will not kill the embryo unless it's been really cold and for a long period. I've heard of incubators being accidentally unplugged and undiscovered for up to 24 hours and the eggs hatched. The cool down may delay the embryo's development a bit though, so keep that in mind when hatch day comes. They might hatch a little bit later than expected. Good luck!

 

[JaimeRoxMySox]

Thank you!!