Day 8 I see blood vessels but no embryo

[kathie grey]

Hello-
I have eggs in an incubator. They all showed signs of development by day 5. I am now on day 8 and I see all the eggs have lots of blood vessels. Some I can clearly see the embryo at the large end of the egg and see movement. Others...I cannot see that at all. Does that mean these are not viable anymore? Conditions in the incubator have been stable. No issues. I have 40 shipped eggs and 37 developed...so I felt very lucky. Hoping my luck has not changed.....

 

[WalnutHill]

Chances are you have cool spots in your incubator. Move the underdeveloped eggs to the spots where the most developed eggs are. They should catch up in the next week.

 

[kathie grey]

Yes...they do seem to be mostly the eggs on the edges! I will rotate them.
Thanks!