HISTOPATHOLOGIC LESIONS SURVEY AND ANTIGEN DETECTION IN BROILER CHICKENS INOCULATED WITH A H9N2 AVIAN IN-FLUENZA VIRUS

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HADIPOUR M.M.; NILI H.; ASASI K.; AZAD F.; FARJADIAN SH.

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Journal: SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL Year:2009 | Volume:4 | Issue:4 (21) Page(s): 61-71

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Title

HISTOPATHOLOGIC LESIONS SURVEY AND ANTIGEN DETECTION IN BROILER CHICKENS INOCULATED WITH A H9N2 AVIAN IN-FLUENZA VIRUS

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Keywords

HISTOPATHOLOGYQ2

IMMNFLUORESCENCEQ3

AVIAN INFLUENZAQ3

((H9N2))Q3

BROILER CHICKENSQ3

Abstract

Avian influenza virus subtype (H9N2) which has been pathotyped as non-highly pathogenic not only caused great economic losses in broiler farms in Middle East countries, but also it has some public health significance as well.The purposes of this experiment were to determine the effect of intranasal inoculation of Iranian AIV (H9N2) isolate on pathogenesis in BROILER CHICKENS to demonstrate the type, severity and frequency of histologic changes produced in BROILER CHICKENS following intranasal inoculation of the isolate and to show (H9N2) AI viral antigen distribution in different tissues of chickens. Thirty six I-day-old BROILER CHICKENS (Ross, UK) were randomly divided in two equal groups (treatment and control) and were bled at certain time points for detection of specific antibodies against (H9N2) subtype of AIV. At 20 days of age the treatment group was inoculated intranasally with 106 EID50 per bird of A/Chicken/Iran/SH-110/99(H9N2) AVIAN INFLUENZA virus. Three birds from each group (treatment and control) were randomly selected on days 0, 1, 3, 5, 7 and 10 postinoculation (PI). Then they were humanly sacrificed and were subjected throughout necropsy. Gross lesions were recorded and tissue samples from different organs (trachea, lung, liver, pancreas, spleen, thymus, duodenum, kidney, brain and bursa of fabricius) were collected for HISTOPATHOLOGY and immunofluorescence studies. The results indicated that the A/Chicken/Iran/SH-110/99(H9N2) AVIAN INFLUENZA virus is epitheliotropic in chickens. In intranasal inoculation, tracheitis, pneumonia and tubulointerstitial nephritis were the most frequent histologic lesions. The AIV antigen was detected in the trachea, lung (pneumotropic) and kidney (nephrotropic) of inoculated chickens using indirect immunofluorescence technique.

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APA: Copy

HADIPOUR, M.M., NILI, H., ASASI, K., AZAD, F., & FARJADIAN, SH.. (2009). HISTOPATHOLOGIC LESIONS SURVEY AND ANTIGEN DETECTION IN BROILER CHICKENS INOCULATED WITH A H9N2 AVIAN IN-FLUENZA VIRUS. SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL, 4(4 (21)), 61-71. SID. https://sid.ir/paper/97059/en

Vancouver: Copy

HADIPOUR M.M., NILI H., ASASI K., AZAD F., FARJADIAN SH.. HISTOPATHOLOGIC LESIONS SURVEY AND ANTIGEN DETECTION IN BROILER CHICKENS INOCULATED WITH A H9N2 AVIAN IN-FLUENZA VIRUS. SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL[Internet]. 2009;4(4 (21)):61-71. Available from: https://sid.ir/paper/97059/en

IEEE: Copy

M.M. HADIPOUR, H. NILI, K. ASASI, F. AZAD, and SH. FARJADIAN, “HISTOPATHOLOGIC LESIONS SURVEY AND ANTIGEN DETECTION IN BROILER CHICKENS INOCULATED WITH A H9N2 AVIAN IN-FLUENZA VIRUS,” SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL, vol. 4, no. 4 (21), pp. 61–71, 2009, [Online]. Available: https://sid.ir/paper/97059/en

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