Morphological characteristics of the embryonic development of the uterus of the coypu (Myocastor coypus)

Authors

  • Antonio E. Felipe L. Universidad Nacional del Centro de la Provincia de Buenos Aires, Facultad de Ciencias Veterinarias, Centro de Investigaciones Biológicas. Tandil, Argentina https://orcid.org/0000-0003-0044-7657
  • Paula G. Alzola B. Universidad Nacional del Centro de la Provincia de Buenos Aires, Facultad de Ciencias Veterinarias, Centro de Investigaciones Biológicas. Tandil, Argentina https://orcid.org/0000-0001-8265-5489
  • Bianca Mancini Z. Universidad Nacional del Centro de la Provincia de Buenos Aires, Facultad de Ciencias Veterinarias, Centro de Investigaciones Biológicas. Tandil, Argentina

DOI:

https://doi.org/10.15381/rivep.v33i1.20687

Keywords:

coypu, fetuses, histology, uterus

Abstract

The aim of this work was to perform the histological characterization of the embryonic development of the uterus of the coypu (Myocastor coypus). Samples from four foetal stages were processed with routine histological techniques and stained with hematoxylin-eosin, picrosirus red and immunolabelled with á-smooth muscle actin. In foetuses 60 days postcoital (dpc), paramesonephric ducts were observed, with a simple cuboidal epithelium. In 90 dpc fetuses, the uterus was regionalized in horns, body and cervix, with a stratified lining epithelium, surrounded by a tunic with two layers of mesenchymal tissue. The endocervical mucosa presented shallow crypts. The uteri of foetuses of 120 and 135 dpc showed a clear distinction of the mucous, muscular and serous tunics. In the 120 dpc uteri the presence of adenogenesis stages was observed. In foetuses of 135 dpc, glands of tubular appearance were identified in the horns and uterine corpus. Collagen fibres were identified in foetuses of 90, 120 and 135 dpc. Immunolocalization of cells with á-smooth muscle actin was observed in 120 and 135 dpc foetuses. Histological differentiation of the uterus is a prenatal phenomenon in coypu unlike traditional laboratory rodents such as mice and rats.

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Published

2022-02-25

Issue

Vol. 33 No. 1 (2022)

Section

Artículos Primarios

License

Copyright (c) 2022 Antonio E. Felipe L., Paula G. Alzola B., Bianca Mancini Z.

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

AUTHORS RETAIN THEIR RIGHTS:

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b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Revista de Investigaciones Veterinarias del Perú (RIVEP).

c. Authors retain theirs right to make a subsequent publication of their work, to use the article or any part thereof (eg a compilation of his papers, lecture notes, thesis, or a book), always indicating the source of publication (the originator of the work, journal, volume, number and date).

How to Cite

Felipe L., A. E., Alzola B., P. G., & Mancini Z., B. (2022). Morphological characteristics of the embryonic development of the uterus of the coypu (Myocastor coypus). Revista De Investigaciones Veterinarias Del Perú, 33(1), e20687. https://doi.org/10.15381/rivep.v33i1.20687