International Journal of Clinical and Developmental Anatomy

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The Morphogenesis of the Sexually Indifferent Gonads in the Rabbit

Received: Dec. 06, 2017    Accepted: Dec. 20, 2017    Published: Jan. 08, 2018
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Abstract

The present study aimed to point out the prenatal developmental stages of the indifferent gonads in rabbit. About 50 embryos and fetuses aged 11 to 18 days postcoitum were used in this study. The embryos of 9 days-old up to 13 days-old fetuses were fixed firstly within the uterus by using modified Davidson's fixative and then were transferred with the caudal halves of the fetuses aged from 14 to 18 days postconception into 10% Neutral buffered formalin for 24 to 48 hours. The specimens were prepared using routine histological work. The morphogenesis of the sexually indifferent gonad of the rabbit was studied by high-resolution light microscopy. The results showed that the gonadal ridges were detected at the 12th day postconception as a cellular thickening covered by coelomic epithelium on either sides of the dorsal mesentery and attached to the developing pronephros. As the development progressed the gonadal ridge increased in size and cellular constituents and became housing blood vessels and germ cells. The current work concluded that the gonads of the rabbit remained indifferent and neither testis nor ovary was observed until the 17th day postconception.

DOI 10.11648/j.ijcda.20170306.12
Published in International Journal of Clinical and Developmental Anatomy ( Volume 3, Issue 6, November 2017 )
Page(s) 57-63
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Parental, Development, Indifferent Gonads, Fetus, Rabbit

References
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  • APA Style

    Reda Mohamed, Zein Adam, Mohammed Gad, Khalid Mazher. (2018). The Morphogenesis of the Sexually Indifferent Gonads in the Rabbit. International Journal of Clinical and Developmental Anatomy, 3(6), 57-63. https://doi.org/10.11648/j.ijcda.20170306.12

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    ACS Style

    Reda Mohamed; Zein Adam; Mohammed Gad; Khalid Mazher. The Morphogenesis of the Sexually Indifferent Gonads in the Rabbit. Int. J. Clin. Dev. Anat. 2018, 3(6), 57-63. doi: 10.11648/j.ijcda.20170306.12

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    AMA Style

    Reda Mohamed, Zein Adam, Mohammed Gad, Khalid Mazher. The Morphogenesis of the Sexually Indifferent Gonads in the Rabbit. Int J Clin Dev Anat. 2018;3(6):57-63. doi: 10.11648/j.ijcda.20170306.12

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  • @article{10.11648/j.ijcda.20170306.12,
      author = {Reda Mohamed and Zein Adam and Mohammed Gad and Khalid Mazher},
      title = {The Morphogenesis of the Sexually Indifferent Gonads in the Rabbit},
      journal = {International Journal of Clinical and Developmental Anatomy},
      volume = {3},
      number = {6},
      pages = {57-63},
      doi = {10.11648/j.ijcda.20170306.12},
      url = {https://doi.org/10.11648/j.ijcda.20170306.12},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ijcda.20170306.12},
      abstract = {The present study aimed to point out the prenatal developmental stages of the indifferent gonads in rabbit. About 50 embryos and fetuses aged 11 to 18 days postcoitum were used in this study. The embryos of 9 days-old up to 13 days-old fetuses were fixed firstly within the uterus by using modified Davidson's fixative and then were transferred with the caudal halves of the fetuses aged from 14 to 18 days postconception into 10% Neutral buffered formalin for 24 to 48 hours. The specimens were prepared using routine histological work. The morphogenesis of the sexually indifferent gonad of the rabbit was studied by high-resolution light microscopy. The results showed that the gonadal ridges were detected at the 12th day postconception as a cellular thickening covered by coelomic epithelium on either sides of the dorsal mesentery and attached to the developing pronephros. As the development progressed the gonadal ridge increased in size and cellular constituents and became housing blood vessels and germ cells. The current work concluded that the gonads of the rabbit remained indifferent and neither testis nor ovary was observed until the 17th day postconception.},
     year = {2018}
    }
    

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    T1  - The Morphogenesis of the Sexually Indifferent Gonads in the Rabbit
    AU  - Reda Mohamed
    AU  - Zein Adam
    AU  - Mohammed Gad
    AU  - Khalid Mazher
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    DO  - 10.11648/j.ijcda.20170306.12
    T2  - International Journal of Clinical and Developmental Anatomy
    JF  - International Journal of Clinical and Developmental Anatomy
    JO  - International Journal of Clinical and Developmental Anatomy
    SP  - 57
    EP  - 63
    PB  - Science Publishing Group
    SN  - 2469-8008
    UR  - https://doi.org/10.11648/j.ijcda.20170306.12
    AB  - The present study aimed to point out the prenatal developmental stages of the indifferent gonads in rabbit. About 50 embryos and fetuses aged 11 to 18 days postcoitum were used in this study. The embryos of 9 days-old up to 13 days-old fetuses were fixed firstly within the uterus by using modified Davidson's fixative and then were transferred with the caudal halves of the fetuses aged from 14 to 18 days postconception into 10% Neutral buffered formalin for 24 to 48 hours. The specimens were prepared using routine histological work. The morphogenesis of the sexually indifferent gonad of the rabbit was studied by high-resolution light microscopy. The results showed that the gonadal ridges were detected at the 12th day postconception as a cellular thickening covered by coelomic epithelium on either sides of the dorsal mesentery and attached to the developing pronephros. As the development progressed the gonadal ridge increased in size and cellular constituents and became housing blood vessels and germ cells. The current work concluded that the gonads of the rabbit remained indifferent and neither testis nor ovary was observed until the 17th day postconception.
    VL  - 3
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Author Information
  • Department of Basic Veterinary Sciences, School of Veterinary Medicine, Faculty of Medical Sciences, The University of the West Indies, St. Augustine, Republic of Trinidad and Tobago; Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Beni Suef University, Beni Suef, Egypt

  • Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Beni Suef University, Beni Suef, Egypt

  • Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Beni Suef University, Beni Suef, Egypt

  • Department of Cytology and Histology, Faculty of Veterinary Medicine, Beni Suef University, Beni Suef, Egypt

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