Number of germ cells and meiotic prophase stages in fetal rat ovaries cultured in vitro

in Reproduction
Authors:
J. Prépin
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C. Gibello-Kervran
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G. Charpentier
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A. Jost
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Summary. Ovaries from 13·5-day-old rat fetuses were cultured in vitro in a hormone-free medium for up to 8 days. The number of germ cells increased during the first 4 days and then sharply decreased. The initial decrease was concomitant with the first leptotene stages. All stages of meiotic prophase progressively appeared in the remaining germ cells.

 

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