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- #44,041
Could be...Quote:incubator. An embryo orients during incuba-than the large end of the egg when set in the
tion so that the head develops toward the
large end of the egg where the air cell is
located. A chick’s head can orient away from
the air cell of the egg if the small end is
higher than the large end during incubation.
An embryo oriented in the wrong direction
will not hatch.
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-Kathy
https://books.google.com/books?id=o...onepage&q=duck hatching eggs vertical&f=false
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