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Effects of divalent cations on in vitro maturation of bovine oocytes

✍ Scribed by Leibfried, Lorraine ;First, Neal L.

Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
257 KB
Volume
210
Category
Article
ISSN
0022-104X

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✦ Synopsis

Abstract

Lowering the external concentrations of both Mg^+2^ and Ca^+2^ caused failure of meiotic resumption invitroof bovine, oocyte‐cumulus complexes. Lowering of external Ca^+2^ levels singly had no effect on either meiotic resumption or completion of the first meiotic division. Lowering of external Mg^+2^ concentration on meiotic resumption invitro when Ca^+2^ was present, did interfere with the completion of the first meiotic division. The result was arrest of oocyte matuaration between germinal vesicle breakdown and formation of the first metaphase plate.

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