VIRUSES ASSOCIATED WITH CORYZA INFECTION IN CHICKENS

Document Type : Original Article

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Abstract

Isolation of viruses associated with coryza in chicken was carried out. One hundred and thirty-eight samples were collected from 138 flocks representing 851 thousand birds of different ages, breeds and different localities from Sharkia province. The serological examination of sera collected from field cases using HI and AGP tests revealed an incidence of antibodies against ND, IB, ILT Reovirus and Poxvirus in percentage of 7.3, 10.9, 1.5. 4.9 and 0.73 respectively. The viral isolation trials resulted in the isolation of 41 viral agents of which thirteen NDV, sixteen, IBV, three, ILT, two poxviruses and seven reovirus isolates associated with infectious coryza.

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