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363155

Circulating of is/1494-like strains of IBV in vaccinated commercial broiler flocks in Egypt during years 2012 to 2014

Article

Last updated: 03 Jan 2025

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Subjects

-

Tags

Avian diseases / production

Abstract

In this study, the prevalence of IBV in Egyptian commercial Broiler farms were studied. Samples were collected from flocks in 9 Farms located in 5 governorates (Behira , Giza, Sharkia, Ismailia and Gharbia ) between years 2012 -2014. The birds showed severe respiratory signs with moderate number of chalky white droppings, feed consumption and body weight were markedly reduced. Severe rales with difficult respiration and mortalities were high and ranged from 20% to 25% . Flocks included in this study were vaccinated by classic Massachusetts strain similar commercial live (IB -H120 / MAS) vaccine. 8 out of 9 flocks were positive for IBV using Real time RT PCR. The 500-bp of the SI gene covering the hyper variable region-3 of 5 isolates were amplified and sequenced. Phylogenetic analysis based on that region revealed that these viruses closely related to Variant strains of IBV, The viruses were clustered into two groups, the first group included (port said F118-4/2013, Giza F299/2012) which were resemble to IS 1494 Variant 2 strains. The second group include (Behira F161/2012, Sharkia F552/2013 and Ismailia F187/2012) were vaccinal strains resemble D274 vaccine. Monitoring of evolving IBV strains is essential for improving the control of disease in Egypt.

DOI

10.21608/vmjg.2016.363155

Keywords

Infectious Bronchitis virus (IBV), S1 Gene, classic and variant, Egypt strains, Classic Vaccines

Authors

First Name

Abdelghany

Last Name

SA

MiddleName

-

Affiliation

Elwatania poultry grandparents, 6october- city stars - Giza, Egypt

Email

-

City

-

Orcid

-

First Name

Hussein

Last Name

HA

MiddleName

-

Affiliation

Department of virology, Faculty of veterinary Medicine, Cairo univveristy,12211 Giza, Egypt.

Email

-

City

-

Orcid

-

First Name

Arafa

Last Name

A

MiddleName

-

Affiliation

National Laboratory for Veterinary Quality control on poultry Production , Animal Health Reserch Institute, P.O.Box 264- Dokki, Giza-12618, Egypt.

Email

-

City

-

Orcid

-

First Name

Ali

Last Name

Zanaty

MiddleName

-

Affiliation

National Laboratory for Veterinary Quality control on poultry Production , Animal Health Reserch Institute, P.O.Box 264- Dokki, Giza-12618, Egypt.

Email

-

City

-

Orcid

-

First Name

MA

Last Name

Shalaby

MiddleName

-

Affiliation

Elwatania poultry grandparents, 6october- city stars - Giza, Egypt

Email

-

City

-

Orcid

-

Volume

62

Article Issue

2

Related Issue

47597

Issue Date

2016-04-01

Receive Date

2024-07-01

Publish Date

2016-04-01

Page Start

29

Page End

35

Print ISSN

1110-1423

Online ISSN

2537-1045

Article File

VMJG_Volume 62_Issue 2_Pages 29-35.pdf

PDF . 2.7MB

Link

https://vmjg.journals.ekb.eg/article_363155.html

Detail API

https://vmjg.journals.ekb.eg/service?article_code=363155

Order

363,155

Type

Original Article

Type Code

544

Publication Type

Journal

Publication Title

Veterinary Medical Journal (Giza)

Publication Link

https://vmjg.journals.ekb.eg/

MainTitle

Circulating of is/1494-like strains of IBV in vaccinated commercial broiler flocks in Egypt during years 2012 to 2014

Details

Type

Article

Created At

23 Dec 2024