Preprint Brief Report Version 1 Preserved in Portico This version is not peer-reviewed

Background and Common Lesions in the Female Reproductive Organs of Giant Anteaters (Myrmecophaga Tridactyla)

Fernanda Barthelson Carvalho de Moura
ORCID logo ,
Noeme Sousa Rocha
,
Zara Alves Lacerda
,
José Luiz Catão-Dias
ORCID logo ,
Pedro Enrique Navas-Suárez
ORCID logo ,
Karin Werther
,
Sarah Raquel Jesus Santos Simões
,
Renato Lima Santos
,
Daniel Felipe Barrantes Murillo
,
Carlos Eduardo Fonseca-Alves
* ORCID logo ,
Tatiane Terumi Negrão Watanabe
Version 1 : Received: 4 July 2023 / Approved: 6 July 2023 / Online: 10 July 2023 (13:59:07 CEST)

A peer-reviewed article of this Preprint also exists.

de Moura, F.B.C.; Lacerda, Z.A.; Catão-Dias, J.L.; Navas-Suárez, P.E.; Werther, K.; Simões, S.R.J.S.; Santos, R. de L.; Murillo, D.F.B.; Watanabe, T.T.N.; Fonseca-Alves, C.E.; et al. Background and Common Lesions in the Female Reproductive Organs of Giant Anteaters (Myrmecophaga Tridactyla). Frontiers in Veterinary Science 2024, 11, doi:10.3389/fvets.2024.1287872. de Moura, F.B.C.; Lacerda, Z.A.; Catão-Dias, J.L.; Navas-Suárez, P.E.; Werther, K.; Simões, S.R.J.S.; Santos, R. de L.; Murillo, D.F.B.; Watanabe, T.T.N.; Fonseca-Alves, C.E.; et al. Background and Common Lesions in the Female Reproductive Organs of Giant Anteaters (Myrmecophaga Tridactyla). Frontiers in Veterinary Science 2024, 11, doi:10.3389/fvets.2024.1287872.

Abstract

The giant anteater (Myrmecophaga tridactyla) is a vulnerable specie from Central and South America and is considered extinct in Belize, Guatemala, El Salvador, and Uruguay. Therefore, studies describing the reproductive characteristics of this species are pivotal for its conservation. Thus, this study aimed to provide a morphological description of their female reproductive tissues. We collected tissue samples from six female giant anteaters, and performed gross, morphological, and histochemical analyses. Five adult and one young subjects were enrolled in the study. In the ovary, classifications were made according to the follicle and oocyte sizes: primordial, primary, secondary, early antral, or antral. Typical follicles with a single oocyte surrounded by a simple or stratified layer of cubic epithelium, atretic follicles, corpora lutea, corpora albicans, and ovarian cysts were also observed. No ovarian lesions were observed. By contrast, endometritis, metritis, mucometra, and endometrial cysts were identified in the uterus. Uterine alterations in these subjects were frequent and could affect reproduction.

Keywords

xenarthra; female reproductive morphology; histopathology.

Subject

Biology and Life Sciences, Animal Science, Veterinary Science and Zoology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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