The reproductive cycle of male catfish Pseudoplatystoma fasciatum (Teleostei, Pimelodidae) revealed by changes of the germinal epithelium -: An approach addressed to aquaculture

被引：47

作者：

Batlouni, S. R. ^{[1
]}

Romagosa, E. ^{[1
]}

Borella, M. I. ^{[1
]}

机构：

[1] Univ Sao Paulo, ICB, Dept Biol Celular & Desenvolvimento, BR-05508 Sao Paulo, Brazil

来源：

ANIMAL REPRODUCTION SCIENCE | 2006年 / 96卷 / 1-2期

基金：

巴西圣保罗研究基金会;

关键词：

siluriformes; Pseudoplarystoma fasciatum; germinal epithelium; spermatogenesis; reproductive cycle;

D O I：

10.1016/j.anireprosci.2005.11.012

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

The aims of the present study were to analyze the gonadal structure of Pseudoplatystoma fasciatum males during their annual cycle to enhance understanding of their reproductive biology and to improve the hormonally induced reproduction and culture of this species in hatcheries. We adopted the recently proposed method that establishes reproductive classes that are based on variations of the germinal epithelium within the year. Five reproductive classes were established: maturation (early, middle, and late), regression and recrudescence. Our observations revealed that in the spawning season P. fasciatum testes display two main functions: sperm production and sperm storage. We also concluded that the analysis of the variation of germinal epithelium was satisfactory when applied to this freshwater catfish and should be adopted for other fish species. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：116 / 132

页数：17

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