The air cells of my last & current batch of shipped eggs are terrible. I let them sit for 24 hours before incubating. Also didn't turn for first 3 days of incubation.
Last batch:
All were detached when arrived (looked wiggly like Jello). Some turned into very strange saddle shaped; some never reattached & had wiggly air cell lines on day 18. 10 out of 15 made it to lockdown because the embryos were large & moving. Only 3 hatched - all within one hour. Only those 3 pipped. The remaining seven, when opened, were fully formed. Only one of those didn't absorb the yolk.
Current batch (different seller & breed):
Again, Jello -like wiggling air cells on all 12 eggs. Yesterday was day 7. Air cells wiggly but slightly improved. 2 clears, 2 look slightly less developed (possible quitters). Saw movement in 8 eggs. (Saw movement in 10 out of 10 backyard eggs. They are my control group hatched under the same conditions.) So far, I'm not liking the odds of my shipped eggs. I may keep them upright for hatching this time to see if it helps. Any other suggestions?
I have been having the same exact problems, completely formed chicks just no piping or have internal pips. with just a handful all popping out within hours of each other.