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160925

Effect of seasonal variations on the histological structures of gonads in oreochromis niloticus (tilapia nilotica) =

Article

Last updated: 04 Jan 2025

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Abstract

The morphological CHARacteristics of the tastes and the ovary of the nile tilapia (oreochromis niloticus) are presented. Testicular structure and spermatogenesis are described using histological techniques. The testes consist of capsule, seminiferous lobules (contain spermatogenic cell, sertoli cell), interstitial tissue (leydig cell) and duct system. The coexistence in the testicular lobules of spermatozoa and spermatogenic cells indicates that this species is able to perform continuous reproduction. Seasonal trend was noticed in the number of the spermatogenic cell produced over ayear period. The ovarian structure is also described using histological techniques. The ovary consist of capsule and ovarian follicles (chromatin-nucleolus, perinucleolus, cortical alveolar, vitellogenic and mature). Each follicle consists of oocyte and surrounding structure. Seasonal trend was noticed in the type of predominant follicles present over ayear period

DOI

10.21608/mvmj.2009.160925

Keywords

Nile tilpia, Fisheries, Fish culture

Authors

First Name

Lashen

Last Name

Samah

MiddleName

-

Affiliation

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Email

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City

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Orcid

-

Volume

11

Article Issue

2

Related Issue

23348

Issue Date

2009-12-01

Receive Date

2009-02-08

Publish Date

2009-12-01

Page Start

199

Page End

215

Print ISSN

1110-7219

Online ISSN

2682-2512

Link

https://mvmj.journals.ekb.eg/article_160925.html

Detail API

https://mvmj.journals.ekb.eg/service?article_code=160925

Order

3

Type

Original Articles

Type Code

1,268

Publication Type

Journal

Publication Title

Mansoura Veterinary Medical Journal

Publication Link

https://mvmj.journals.ekb.eg/

MainTitle

Effect of seasonal variations on the histological structures of gonads in oreochromis niloticus (tilapia nilotica) =

Details

Type

Article

Created At

22 Jan 2023