Survey of primultaneous Contamination with CIAV and infection with AI and ND in broiler chicken of Chaharmahal - va - Bakhtiari provence

Subject Areas : Veterinary Clinical Pathology

ezzatollah fathihafshanjani ¹ ( دانشگاه آزاد اسلامی، واحد شهرکرد، دانشکده دامپزشکی، استادیار بخش بیماری‌های طیور، شهرکرد، ایران. )

Received: 2013-04-17 Accepted : 2013-10-21 Published : 2013-05-22

Keywords: PCR, Histopathology, Infectious Anemia Virus, Chaharmahal Va Bakhtiyari,

Abstract :

Abstract    The agent of chicken infectious anemia (CIA) belongs to Circoviridae. CIA can cause severe anemia, immunosuppression and high sensitivity to bacterial, viral, parasitic and fungal pathogens. The aim of this study was to investigate simultaneous infection of CIA with Newcastle disease (ND) and Avian influenza (AI) in broiler chickens of Chahrmahal-va-Bakhtiari province. For this purpose, in 2011, from 14 broilers chicken flocks at 2-7 weeks old age, with confirmed ND and AI thymus and bursa of fabricious were sampled for amplification of 1390 base pair fragment of VP1 of CIA virus. Histopathologic the result of PCR showed that 4 flocks (28.57%) were one hundred percent infected with CIA. examination approved the results of PCR. This study showed high simultaneous infection rate of CIA with ND and AI that causes high mortality in these flocks. Therefore, this may be related to immunosuppressant effect of CIA, alone or with other infections.

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