Qualitative analisis of the established spermatogenesis in agoutis (Dasyprocta aguti) rised in captivity

Authors

  • Antônio Chaves de Assis-Neto Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Cirurgia, São Paulo, SP
  • Maria Isabel Vaz de Melo Universidade Estadula Paulista, Unidade Diferenciada de Dracena, Dracena, SP
  • Maria Acelina Martins de Carvalho Universidade Estadula Paulista, Unidade Diferenciada de Dracena, Dracena, SP
  • Maria Angélica Miglino Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Cirurgia, São Paulo, SP
  • Moacir Franco de Oliveira Escola Superior Agrícola de Mossoró, Mossoró, RN
  • Danilo José Ayres de Menezes Universidade Federal de Campina Grande, Centro de Saúde e Tecnologia Rural, Patos, PB
  • Paula de Carvalho Papa Universidade Federal de Campina Grande, Centro de Saúde e Tecnologia Rural, Patos, PB
  • José Roberto Kfoury Júnior Universidade Federal de Campina Grande, Centro de Saúde e Tecnologia Rural, Patos, PB

DOI:

https://doi.org/10.1590/S1413-95962003000900004

Keywords:

Agouti, Testicle, Spermatogenesis, Puberty

Abstract

The determination of the puberty beginning is widely studied in domestic animals and rodents. However, there are scarce researches with the purpose to establish parameters for the reproductive biology in Agoutis. Thirty-one male Agoutis, Dasyprocta agouti species had been used, originated from the Universidade Federal do Piauí - PI, and from the Mossoró Superior Scholl of Agriculture - RN. Immediately after the orchiectomy, histological sections were made, the tissues were stained with hematoxylin-eosine and analyzed for the following parameters: aspects of the seminiferous tubule lumen; presence of primary spermatocytes; presence of spermatid cells and formation of the first stages of the seminiferous epithelium cycle (SEC), in accordance with the tubular morphology method. The period from the birth up to five months of age corresponded to the impuberal phase; from six to eight months, to the transition from the prepuberal phase to puberty; from nine to ten months, to the puberty; and, from twelve to fourteen months of age to the after-puberty phase. The puberty of the Agouti (Dasyprocta aguti), occurred since seven months of age, being the establishment puberty beginning evidenced at nine months of age.

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Published

2003-01-01

How to Cite

Assis-Neto, A. C. de, Melo, M. I. V. de, Carvalho, M. A. M. de, Miglino, M. A., Oliveira, M. F. de, Menezes, D. J. A. de, Papa, P. de C., & Kfoury Júnior, J. R. (2003). Qualitative analisis of the established spermatogenesis in agoutis (Dasyprocta aguti) rised in captivity. Brazilian Journal of Veterinary Research and Animal Science, 40(supl.), 180-184. https://doi.org/10.1590/S1413-95962003000900004

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