Search results for query: *

No it is likely the inner membrane. The outer membrane is basically glued to the shell and when there is a pip, they break through the outer membrane and shell simultaneously.

There are two membranes right below the shell. The outer membrane is basically a lining on the shell. The inner membrane encases the albumen, yolk and embryo as well as extra embryonic membranes that feed the embryo. The air cell is between the two membranes. It is created right after an egg is...

27 days with chicken eggs and no chicks out, I'm sorry to say I wouldn't expect any to hatch at this point. I surmise that you don't have an accurate thermometer. When temperature is 99.5 throughout incubation and all other parameters are ideal, they should pop out like popcorn on day 21.

It is too late to lower it now. It needs to be up for hatching. It needed to be lower throughout incubation but lowing it now can cause problems of their own.

RH of 60s is too high throughout incubation. It only needs to go to the 60s+ the last couple days.