Testicular cycle of Devario aequipinnatus (Teleostei, Cyprinidae): a potential model biological in animal experimentation

Authors

  • Jumma Miranda Araújo CHAGAS UNESP - Univ. Estadual Paulista, Ilha Solteira, PPG Ciência e Tecnologia Animal
  • Alexandre NINHAUS-SILVEIRA UNESP -  Universidade Estadual Paulista “Júlio de Mesquita Filho”, Campus de Ilha Solteira, Departamento de Biologia e Zootecnia, L.I.NEO -  Laboratório de Ictiologia Neotropical http://orcid.org/0000-0003-0738-0862
  • Rosicleire VERÍSSIMO-SILVEIRA UNESP -  Universidade Estadual Paulista “Júlio de Mesquita Filho”, Campus de Ilha Solteira, Departamento de Biologia e Zootecnia, L.I.NEO -  Laboratório de Ictiologia Neotropical http://orcid.org/0000-0002-8298-5004

DOI:

https://doi.org/10.20950/1678-2305.2016v42n4p765

Keywords:

Reproductive phases, germinal epithelium, Dí­¢nio, Spermatogenesis, Fish

Abstract

The presente study describes the testicular structure, spermatogenesis and maturation phases in the Devario aequipinnatus, a species with great potential for use as a biological model for animal experimentation. The testes in D. aequipinnatus were classified as tubular anastomosing with unrestricted spermatogonial distribution. Were observed four phases of testicular maturation based on the changes of the testicular germinal epithelium associated with the stages of germ cells present: Early Maturation, Mid Maturation, Late Maturation and Regression. Due to the phylogenetic proximity, testicular morphology D aequipinnatus is similar to other Cypriní­­deos, example, zebrafish (Danio rerio), which corroborates the hypothesis that the use of D aequipinnatus as a biological model for animal experimentation.

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Published

2016-12-30

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