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Paper Information

Journal:   ARCHIVES OF RAZI INSTITUTE   WINTER 2007 , Volume 62 , Number 1; Page(s) 39 To 44.
 
Paper: 

SHORT COMMUNICATION: ISOLATION AND PATHOGENICITY IDENTIFICATION OF AVIAN PARAMYXOVIRUS SEROTYPE 1 (NEWCASTLE DISEASE) VIRUS FROM A JAPANESE QUAIL FLOCK IN IRAN

 
 
Author(s):  MOMAYEZ R.*, POURBAKHSH S.A., SHOUSHTARI A.A.H., BANANI M., GHARAH KHANI P., TOROUGHI R.
 
* DEPARTMENT OF AVIAN DISEASES RESEARCH AND DIAGNOSTIC, RAZI VACCINE AND SERUM RESEARCH INSTITUTE, KARAJ, IRAN
 
Abstract: 
Newcastle disease virus (NOV) was isolated and identified for the first time from a flock of Japanese quail suspected to NO in Iran. Birds of the flock aged variously, and some of them died from the disease. Loss of appetite, weakness and decrease in egg production, diarrhea and nervous symptoms were the main clinical signs in the birds. Hemorrhagic lesions of the intestinal tracts and proventriculus were found in gross pathology investigations. Samples were taken for bacteriology, parasitology and virology. The results of parasitology and bacteriology examinations were negative. The virus was isolated only from brain samples and was identified as Avian Paramyxovirus type 1 (APMV-1) by HI test using NOV-Specific antibody. The pathogenicity of the virus was identified by mean death time (MOT) in embryonated chicken eggs, intracerebral pathogenicity index (ICPI) and intravenous pathogenicity index (IVPI) in chickens. Values 40, 1.62 and 2.31 were obtained for MOT, ICPI and IVPI respectively. These results indicate that isolated APMV-I belongs to NOV velogenic strains with severe pathogenicity. According to these findings vaccination against NOV in quail farms of Iran is highly recommended.
 
Keyword(s): ISOLATION, IDENTIFICATION, PATHOGENICITY, NEWCASTLE DISEASE VIRUS, QUAILS, IRAN
 
References: 
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  pdf-File tarjomyar Persian Abstract Yearly Visit 118
 
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