Eggs keep dying

[noodledog]

I put nine chicken eggs in my incubator on the 1st of April - Every single one of them started developing and were developing well, until day 11 where they started dying - lost 2 the 11th day, 1 or 3 on the 12th, and another today. My incubator temperature is 37.5c and I have an auto turner that turns them horizontally. Humidity between 30-50% usually. There are 3 different breeds.

Are there absolutely any reasons for this that anyone can think of? I'll take any suggestions at all, desperate to save the remaining babies

 

[Alexandra Runner]

What kind of incubator do you have? Some are better than others.

 

[Fluffy_Moth_With_Silkies]

I put nine chicken eggs in my incubator on the 1st of April - Every single one of them started developing and were developing well, until day 11 where they started dying - lost 2 the 11th day, 1 or 3 on the 12th, and another today. My incubator temperature is 37.5c and I have an auto turner that turns them horizontally. Humidity between 30-50% usually. There are 3 different breeds.

Are there absolutely any reasons for this that anyone can think of? I'll take any suggestions at all, desperate to save the remaining babies

I think the humidity might need to be raised. It also depends on the incubator.

 

[noodledog]

Magicfly mini egg incubator, the one that holds 9 eggs. Hatched Call ducks in it 2 years ago and had almost 100% hatch rate

 

[killmak]

Are you using a secondary thermometer to make sure temperature and humidity are actually reading right?

 

[noodledog]

Are you using a secondary thermometer to make sure temperature and humidity are actually reading right?

Yes, I'm using a Govee thermometer/hygrometer & I also used a (calibrated) mercury thermometer to make sure it was accurate

 

[killmak]

Did you mark the eggs to make sure it was turning them properly and not doing full circles? Where the eggs all from the same hen?

 

[noodledog]

All eggs are marked - and I don't think they are. I bought them from 2 different people (locally, not shipped) and every egg is a different shade.

 

[killmak]

Sorry nothing else I can think of. Sounds like you are doing everything right.

 

[noodledog]

Thank you for trying to help