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199409

Molecular Studies on Aeromonas Species Isolated from Freshwater Fishes Collected from Delta Region, Egypt

Article

Last updated: 22 Jan 2023

Subjects

-

Tags

Fish disease

Abstract

The current study was carried out to identify suspected causes of septicemia in naturally infected freshwater fishes collected from different fish farms at different localities in Menofiya and Kafr El-Sheikh Provinces, Egypt. Fishes (n=120) were examined clinically and upon post-mortem. Bacteriological isolation and identification of the bacterial pathogens using traditional and molecular methods were demonstrated. Based on the phenotypic and biochemical characterization using API20E, API 20 NE and VITEKĀ® 2 compact, the isolated bacteria were identified as Aeromonads (A. hydrophila and A. veronii). Molecular characterization was accomplished through polymerase chain reaction (PCR) and confirmed by sequencing and phylogenetic analysis. The high molecular identity and close phylogenetic relationship confirmed that the isolates were genetically homologous to A. hydrophila and A. veronii. Thus, this study proves that motile aeromonads remain important bacterial pathogens from aquaculture point of view in Egypt, which requires regular and permanent examination of cultured fishes to resist mass mortalities which lead to economic losses.

DOI

10.21608/jcvr.2021.199409

Keywords

Freshwater fishes, A. hydrophila, A. veronii, Sequencing, Phylogenetic analysis

Authors

First Name

Salma

Last Name

El-Sharaby

MiddleName

Mohamed

Affiliation

University of Sadat City Faculty of Veterinary Medicine Dept. of Aquatic Animal Medicine and Management

Email

seemseemvet@yahoo.com

City

Shebin El-kom

Orcid

0000-0003-0503-3314

First Name

Salah

Last Name

El-Ballal

MiddleName

-

Affiliation

Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Sadat City, Sadat City 32511, Egypt.

Email

-

City

-

Orcid

-

First Name

Mohamed

Last Name

Ali

MiddleName

-

Affiliation

Department of Fish Diseases, Animal Health Research institute, Dokki, ARC, Giza, 12619, Egypt.

Email

-

City

-

Orcid

-

First Name

Maha

Last Name

El-Hady

MiddleName

-

Affiliation

Department of Fish Diseases, Animal Health Research institute, Dokki, ARC, Giza, 12619, Egypt.

Email

-

City

-

Orcid

-

Volume

3

Article Issue

2

Related Issue

28130

Issue Date

2021-10-01

Receive Date

2021-02-15

Publish Date

2021-10-01

Page Start

8

Page End

15

Print ISSN

2636-4018

Online ISSN

2636-4026

Link

https://jcvr.journals.ekb.eg/article_199409.html

Detail API

https://jcvr.journals.ekb.eg/service?article_code=199409

Order

2

Type

Original Article

Type Code

799

Publication Type

Journal

Publication Title

Journal of Current Veterinary Research

Publication Link

https://jcvr.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023