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- #931
- Aug 23, 2020
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So, Blueberry, Wisteria, and Grace have all skipped over Day 20, but for thr rest of the eggies who are not overachievers, here is what's happening today!
https://www.backyardchickens.com/articles/development-of-a-chicken-embryo-day-by-day.72537/
Day 20
We have an internal pip!
The chick has pierced the internal membrane and pipped into the air cell. It is now breathing air. Some gas exchange can happen through the egg shell, which is porous, giving the chick time to finish absorbing the vitellus. Vitellus absorption (usually) is completed on this day. External pipping may also occur.
https://www.backyardchickens.com/articles/development-of-a-chicken-embryo-day-by-day.72537/
Day 20
We have an internal pip!
The chick has pierced the internal membrane and pipped into the air cell. It is now breathing air. Some gas exchange can happen through the egg shell, which is porous, giving the chick time to finish absorbing the vitellus. Vitellus absorption (usually) is completed on this day. External pipping may also occur.