Incidence of egg drop syndrome
نویسندگان
چکیده
Aim: To know the magnitude of influence by Egg Drop Syndrome – 1976 (EDS –'76) virus infection in causing drop in egg production in and around Namakkal. Materials and Methods: A total of 150 cloacal swabs and 15 pouch shell glands (uteri) homogenates from 15 poultry farms in and around Namakkal area were used for virus isolation. Three numbers of 10 –dayold embryonated duck eggs were used for the inoculation of each suspected material for virus isolation. The isolate was identified by HA property, by specific inhibition of HA and by AGPT using hyperimmune serum raised against reference EDS –'76 virus strain 127. Results: Out of samples from 15 farms only one isolate (6.6%) was obtained from poultry farm No.5. Conclusion: The results of the present study revealed that the EDS –'76 virus influence in causing drop in egg production in this area to be minimal.
منابع مشابه
Application of polymerase chain reaction in detection of egg drop syndrome (EDS) virus
Egg drop syndrome (EDS) is caused by a hemagglutinating adenovirus which has become a major cause of lost egg production and sever economic losses in breeder and layer chicken flocks throughout the world. A PCR assay was optimized for detection of EDS virus in inoculated allantoic fluids (AFs) of duck and chicken emberyonated eggs. Two strains of EDS viruses were propagated in allantoic cavit...
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To prepare hemagglutination inhibition (HI) antigen the egg drop syndrome virus (EDSV) was propagated in 10-day-old embryonated duck eggs. The virus antigen was inactivated with two methods including heating (65°C) and adding 0.5% formaldehyde by considering low destroying effect on hemagglutination (HA) and HI titers. The EDSV HI titers of 310 sera and 100 yolks obtained from 23 chicken farms ...
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From September 1994 to April 1996, the aetiology of sudden decrease in egg production in commercial layer flocks was investigated. Clinical manifestations were recorded and the egg-shell quality was evaluated in 80 affected flocks. Serological screening was conducted twice at fortnightly intervals to record antibody titres against egg drop syndrome (EDS). Out of 80 flocks with lowered productio...
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