Biologia reprodutiva de fêmeas de lambari-prata, Astyanax scabripinnis Jenyns, 1842 (Characidae; Tetragonopterinae; Teleostei) em condições de cativeiro

Hélio Paulo Pereira Filho; Dalcio Ricardo de Andrade; William Cristiane Teles Tonini; Manuel Vazquez Vidal Junior

doi:10.5216/cab.v12i4.2202

REPRODUCTIVE BIOLOGY IN FEMALES OF Astyanax scabripinnis Jenyns, 1842 (Characidae; Tetragonopterinae; Teleostei) UNDER CAPTIVITY CONDITIONS

Authors

Hélio Paulo Pereira Filho
Dalcio Ricardo de Andrade Universidade Estadual do Norte Fluminense (UENF), Campos de Goytacazes, Rio de Janeiro, Brasil
William Cristiane Teles Tonini Universidade Estadual do Norte Fluminense (UENF), Campos de Goytacazes, Rio de Janeiro, Brasil
Manuel Vazquez Vidal Junior Universidade Estadual do Norte Fluminense (UENF), Campos de Goytacazes, Rio de Janeiro, Brasil

DOI:

https://doi.org/10.5216/cab.v12i4.2202

Keywords:

Acquaculture

Abstract

We studied the reproductive biology of Astyanax scabripinnis by monitoring oocyte development of 94 adult females. Microscopic analysis of the ovaries, gonadosomatic and hepatosomatic indeces assessment, visceral fat and condition factor evaluations were carried out. The structures observed in the ovaries were described from the histological analysis and the hepatosomatic índex, which were used to determine the involvement of the liver in the development of oocytes of this species. Oogonia, oocyte I and oocyte II were present in all stages of gonadal development. Oocytes with cortical vesicles were present in large quantities in the intermediate stage of maturation (F2B) and in a lesser amount in the final stages of maturation (F2C). Mature oocytes were common in the intermediate stage of maturation (F2B), but prevailed in the final stages of maturation (F2C). Oocytes in final maturation and mature viable oocytes, many atresic and post-ovulation folicles were found in spawned animals, besides the ovary disorganization, which are strong characteristics of spawing. Spawned animals were found throughout the year, showing that the species presents a kind of intermittent spawning.

KEYWORDS: liver, oocyte; reproduction.

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Published

2011-12-20

How to Cite

FILHO, Hélio Paulo Pereira; ANDRADE, Dalcio Ricardo de; TONINI, William Cristiane Teles; JUNIOR, Manuel Vazquez Vidal. REPRODUCTIVE BIOLOGY IN FEMALES OF Astyanax scabripinnis Jenyns, 1842 (Characidae; Tetragonopterinae; Teleostei) UNDER CAPTIVITY CONDITIONS. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 12, n. 4, p. 625–634, 2011. DOI: 10.5216/cab.v12i4.2202. Disponível em: https://revistas.ufg.br/vet/article/view/2202. Acesso em: 14 dec. 2025.

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Issue

Vol. 12 No. 4 (2011)

Section

Animal Production

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