Light and transmission electron microscopy of immature camelus dromedarius oocyte

Anatomia, histologia, embryologia
H NiliM H Nasr Esfahani

Abstract

In order to provide a consistent system for laboratory production of embryos, the characteristics of immature camel oocyte must first be described. The objective of this study was to define ultrastructural features of immature camel oocyte. Ovaries were obtained from camels at a local abattoir, and then transported to the laboratory within 2 h. Camelus cumulus oocyte complexes (COCs) were aspirated from 2-6 mm follicles using a 22-gauge needle. Excellent and good quality COCs were selected and prepared for transmission electron microscopy study using a cavity slide. The fine structure of camel oocyte is morphologically similar to that of other mammalian oocytes. However, some minor differences exist between COC of camel and other mammalian species. Different size and shape of membrane-bound vesicles, lipid droplet, mitochondria and cortical granules were distributed throughout the ooplasm. Discrete or in association with endoplasmic reticulum, Golgi complexes were observed in the periphery of the oocytes. The majority of the oocytes were in the germinal vesicle stage.

References

Oct 1, 1989·Gamete Research·F de LoosT A Kruip
Mar 1, 1986·Journal of Reproduction and Fertility·P HyttelT Greve
Nov 1, 1986·Journal of Reproduction and Fertility·P HyttelT Greve
May 1, 1972·Journal of Reproduction and Fertility·W N Fleming, R G Saacke
Sep 1, 1971·The Anatomical Record·H Merchant, M C Chang
Aug 1, 1967·Journal of Ultrastructure Research·M Baca, L Zamboni
May 1, 1980·Journal of Reproduction and Fertility·D G CranM F Hay
Apr 1, 1997·Anatomy and Embryology·T FairM Boland
Mar 25, 2000·Theriogenology·X YangG A Presicce

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