Abstract
The influence of diluted Ringer solution on ovulation and maturation of common frog oocytes stimulated in vitro by homologous pituitary extract (0.005 pit/ml) or progesterone (1 μg/ml) was studied. During hibernation, the dilution of Ringer solution led to a decreased percentage of oocytes ovulated and matured under the influence of both inducers. As the season of reproduction approached, the dependence of oocyte maturation and ovulation on the Ringer solution dilution was reduced. Possible causes of different dependence of the ovulation of amphibian and sturgeon oocytes stimulated by gonadotropic hormones or progesterone on the culture medium osmolality is discussed.
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Original Russian Text © M.N. Skoblina, 2006, published in Ontogenez, 2006, Vol. 37, No. 6, pp. 457–464.
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Skoblina, M.N. Influence of culture medium osmolality on maturation and ovulation of common frog oocytes stimulated in vitro by pituitary extract or progesterone. Russ J Dev Biol 37, 382–388 (2006). https://doi.org/10.1134/S1062360406060075
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DOI: https://doi.org/10.1134/S1062360406060075