Originally Posted by lazy gardener
Ruby, don't go PM re: shipped eggs. We're all here to learn, and can benefit from an open ended conversation if you're up for it.
I didn't want to bore everyone that wasn't into shipped eggs, but here goes...
I've done a lot of thinking about how shipped eggs suffer damage to some extent or another. The damage we can see that's not on a cellular level is the air cell. Almost all air cells have some damage. A little jiggle, a big giggle, or full detachment. We want to stabilize that air cell. Often, it's been assumed that drying the air cell down will stabilize it (By running dry). But I'm thinking this is not working and that's why they dry out in either crazy shapes, saddle shapes, sometimes down the side of the egg. Around day 12 a balloon sorta inflates inside the egg and takes over (Real scientific, right?), creating a firm air cell with whatever shape it gets. So we get solid air cells on day 12, pretty much regardless. I was thinking that higher humidity during the first week, maybe even till day 12-14, would allow the air cell to heal without growing the air cell rapidly and creating a lot of moisture lost too. Seems like a lot for an egg that's in shock from rough handling. For the first week, I ran 50% humidity (gasp!) and on day 7, the air cells looked normal. So I kept with it till day 12 but air cell growth had slowed down a lot but they looked great as far as being nice, round, firm circles all in the fat end of the egg, just not much bigger then day 7. Then I lowered humidity, only down to 40%, (that's what I was running dry) and waited till day 19 to lockdown. So maybe it would benefit the air cell to grow it slower in the beginning, while its trying to stabilize and heal itself and then if it needs more moisture loss, have it take place after day 12 of incubation. That's just my theory. I haven't found any research that has studied shipping and humidity. If anyone comes across anything related to both, please pass it along to me.
Originally Posted by kwhites634
Yeah me too! Those have vaulted skulls!