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115900

HISTOLOGICAL STUDIES ON SOME IMMUNE ORGANS OF OREOCHROMIS NILOTICUS (TILAPIA NILOTICA

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Last updated: 25 Dec 2024

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Abstract

The thymus of Tilapia nilotica (Oreochromis niloticus) was covered by thin capsule with short trabeculae. The parenchyma  was differentiated into cortex and medulla; the cortex consisted of dense population of lymphoid cells and few epithelial reticular cells, while the medulla consisted of few lymphoid cells and abundant epithelial reticular cells.  Thymic corpuscle-like structures also detected in the medulla. The parenchyma also contained pigmented macrophages and  mast cells. The kidney of Tilapia nilotica (Oreochromis niloticus) was differentiated into two parts; head and trunk kidneys.  Head kidney could not differentiated into cortex and medulla. The subcapsular region contained haemopoietic tissue. The haemopoietic elements were represented by different types of cells. Non encapsulated melano-macrophage centres were found either sporadic or as clusters. Corpuscle of Stannius was seen embedded in the parenchyma.  The trunk kidney was formed of nephrons and interstitial tissue which was represented by haemopoietic tissue, lymphoid tissue and melano-macrophages. The spleen was surrounded by thin capsule. The spleen was composed of red, ill developed white pulp and accumulation of melano-macrophages. The subcapsular region occupied mostly by the red pulp. Also the spleen contained haemopoietic tissue.  Some exocrine pancreatic acini were noticed at subcapsular region. Melano-macrophage centres were found around the vascular channels and embedded in the parenchyma.

DOI

10.21608/kvmj.2008.115900

Keywords

Thymus, Tilapia nilotica

Authors

First Name

Mamdouh A.

Last Name

EL-Shammaa

MiddleName

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Affiliation

Department of cytology and histology, Faculty of vet. Med. Cairo University

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First Name

Hany A.

Last Name

El-Habback

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Affiliation

Department of cytology and histology, Faculty of vet. Med. Cairo University

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Orcid

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First Name

Gehad, A.

Last Name

El-Bargeesy

MiddleName

-

Affiliation

Department of cytology and histology, Faculty of vet. Med. Cairo University

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Orcid

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First Name

Shymaa H.

Last Name

Hussein

MiddleName

-

Affiliation

Department of cytology and histology, Faculty of vet. Med. Cairo University

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Orcid

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Volume

6

Article Issue

1

Related Issue

16826

Issue Date

2008-04-01

Receive Date

2008-01-01

Publish Date

2008-04-01

Page Start

60

Page End

93

Print ISSN

1687-1456

Online ISSN

2682-2954

Article File

KVMJ_Volume 6_Issue 1_Pages 60-93.pdf

PDF . 1.3MB

Link

https://kvmj.journals.ekb.eg/article_115900.html

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https://kvmj.journals.ekb.eg/service?article_code=115900

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Type

Original Article

Type Code

1,064

Publication Type

Journal

Publication Title

Kafrelsheikh Veterinary Medical Journal

Publication Link

https://kvmj.journals.ekb.eg/

MainTitle

HISTOLOGICAL STUDIES ON SOME IMMUNE ORGANS OF OREOCHROMIS NILOTICUS (TILAPIA NILOTICA

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Article

Created At

22 Jan 2023