Hatching shipped eggs

[Islandmom511]

Hi all! It’s been awhile since I’ve done a hatch. This summer I’ve got 5 white layer duck eggs in the incubator (started with 12, but lost a few at different stages). They’re shipped eggs and even though I let them sit for 24 hours before putting them in, they’ve got some super wonky air sacs. I traced them tonight (day 19). My question is- is there anything I can do this late in the game to get them a little less saddle like? Also- when I go into lockdown how to I know which way to set them? Thanks for your help with this! I’m rusty! LOL

 

[Altfrizzle]

IME if the chick has developed well the saddle shaped air cells aren’t an issue at draw-down. They draw down into normal shapes and the chick pips fine.

The only problem is if it caused an issue with the chick getting into position to hatch.

I keep an eye out for pips outside of the air cell.