Incidence of Avian Nephritis and Infectious Bronchitis Viruses in Broilers in Egypt
Published:July 17, 2018
Summary
1. INTRODUCTION Avian nephritis virus (ANV) is an etiological agent of growth retardation of young chickens by causing interstitial nephritis (Imada et al., 1979). Antibodies against ANV have been found in chicken and turkey flocks in the UK and Japan, suggesting a broad distribution (Nicholas et al., 1988; Takase et al., 2000). It is originally considered to be a picornavirus, was later char...
Infectious Bronchitis has been always a big challenge in prevention and control the disease. The intensive farming tech. has added and increased the bio burden to a level that almost every flock gets exposed to it. The early exposure to immunosuppressive agents adds to increase the severity of the disease. The problem has also been observed all over the world including US, which has more severity than rest. The common techniques used over there is use of auto vaccines, has also been of little help. The disease needs to be addressed judiciously with all care, taking utmost care at biosecurity, control of immunosuppressive agents, serological (antibody) monitoring and vaccination and subsequent monitoring of same.