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Detection of avian influenza virus type A in broiler flocks with respiratory symptoms in some provinces of Iran
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Behshad Baheshtian   , Zahra Boroomand * , Masoud Reza Seyfi Abad Shapoori , Mansour Mayahi |
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Abstract: (797 Views) |
Introduction: Avian influenza is one of the most important and deadly poultry diseases all over the world and in Iran, which always causes massive losses in poultry farms. They are classified as common diseases or zoonotic. This study was designed to investigate the role of the influenza virus in causing casualties in the poultry farms of the country. Therefore, 28 flocks from four different provinces (Qazvin, Gilan, Zanjan and Khuzestan) were monitored.
Materials & Methods: Samples were taken from casualties suspected of respiratory diseases (10 chickens from each flock), and from tissues of the trachea, lungs, cecal tonsils, and kidneys. First, the presence of the influenza virus in the tissues was confirmed with the NP primers, and then the positive samples were evaluated with the specific H9 primer to check the presence of the H9N2 serotype.
Results: Out of the total of 28 flocks, 17 flocks were diagnosed positive with the NP primers, and 5 of these 17 flocks were positive with H9-specific primer.
Conclusion: According to the evaluation done in this study and the prevalence of the virus in a significant number of regions of the country, it is always recommended to follow biosecurity principles. |
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| Keywords: Zinc, In ovo injection, Chicken, Product health, Meat quality |
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Full-Text [PDF 673 kb]
(312 Downloads)
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Type of Study: Research |
Subject:
General
Received: 2025/10/7 | Accepted: 2025/09/1 | Published: 2025/12/2
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