Duck Egg Humidity?

[Lolliegee]

I'm getting ready to start my eggs in a few days and I've read some conflicting numbers as far as humidity for duck eggs goes. I've seen anywhere from 55% to 85%...Anyone know which is right? I've got a homemade 'bator, so I can't refer to a manual.

Thanks!

 

[MissPrissy]

I keep my ducks and geese at 65% humidity until day 25. Then I boost it to 85% through hatch.

 

[Shanay235]

From what I've read and done (been raising ducks for 7 years) it's 50-55% up until 3 days before the expected hatch. The three days before and during the hatch need to be around 75%.
Good Luck!!!

 

[shelleyd2008]

I did mine between 65% and 70% till day 25, then uped it to 80% for the hatch, because I couldn't get it any higher.

 

[Lolliegee]

Ok, thanks for all the responses. Obviously though, I'm still getting mixed answers, so my question now is this...What would too high humidity do? Thanks!