How long will Duck eggs be ok to hatch

[BackSwampGirl]

In bator,if left out for about 4 days in pen with the ducks.I also have some in fridge but they are about a week old.Are they ok to bator.

They are fertile!!!!

 

[tfpets]

Those should be okay...bring them all to room temp before you put them in the incubator though...let them settle first....four days is fine. The fridge ones are cold so they need to get to room temp or they will sweat, but it's not unheard of for them to hatch after being warmed back up! (mark them so you can keep track).....the older the egg, the less likely, but birds dont lay all their eggs in one day either...they pile them up, and then start sitting on them..who knows how old they are when they start "incubating" them?? So why not!! So keep getting, add some more even!

Good Luck,

Tina/tfpets