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Nuclear anomalies were observed during maturation in vitro of golden hamster oocytes, as follows: 1) In 33 p. cent of oocytes, the axis of the first meiotic division spindle was oriented incorrectly. This leads either to the formation of "large" polar bodies or to non-expulsion of the polar body if the spindle occupied a central instead of peripherical position. 2) Triploidy was observed in 0.3 p. cent of the oocytes which accomplished their maturation and fertilization in vitro. 3) Two rare anomalies--reconstitution of the nucleus after expulsion of the first polar body and formation of two second division spindles--appeared to be due to degenerescence of the oocytes in culture.
M Plachot, and
J Mandelbaum, and
J de Grouchy
January 2002,
Life sciences,
M Plachot, and
J Mandelbaum, and
J de Grouchy
January 2002,
Theriogenology,
M Plachot, and
J Mandelbaum, and
J de Grouchy
January 1973,
Experimental cell research,
M Plachot, and
J Mandelbaum, and
J de Grouchy
May 1988,
Nihon Jibiinkoka Gakkai kaiho,
M Plachot, and
J Mandelbaum, and
J de Grouchy
January 1992,
Reproductive toxicology (Elmsford, N.Y.),
M Plachot, and
J Mandelbaum, and
J de Grouchy
January 1993,
Reproductive toxicology (Elmsford, N.Y.),
M Plachot, and
J Mandelbaum, and
J de Grouchy
September 1991,
Biology of reproduction,
M Plachot, and
J Mandelbaum, and
J de Grouchy
September 1995,
Theriogenology,
M Plachot, and
J Mandelbaum, and
J de Grouchy
January 1987,
Anatomy and embryology,
M Plachot, and
J Mandelbaum, and
J de Grouchy
January 1970,
Acta morphologica Neerlando-Scandinavica,
