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Seroprevalence And Restriction Enzyme Analsis Of Egg Drop Syndrome Virus

By: Priya P M.
Contributor(s): Krishnan Nair G (Guide).
Material type: materialTypeLabelBookPublisher: Mannuthy Department of Microbiology, College of veterinary and Animal Sciences 2000DDC classification: 636.089 6 Online resources: Click here to access online Dissertation note: MVSc Abstract: In the present study, seroprevalence of EDS-76 was conducted in five districts of Kerala in duck and' chicken flocks using HI and ELISA. Out of 322 chicken and 281 duck sera samples screened, an overall incidence of 14.91 per cent and 26.69 per cent respectively were recorded. The high proportion of birds showing antibodies to EDS-76 reveals that the infection is widespread in Kerala and may be the major etiological factor associated with drop in egg production in poultry. Among the two serological tests namely, HI and ELISA employed for the detection of EDS-76 viral antibody, HI was found to be simple, sensitive and reliable. It is concluded that HI test could be used for the detection of EDS-76 infection in poultry flocks. Restriction DNA fingerprinting of the three indigenous strains were carried out in conjunction with the reference strain to check for any genetic variation between the strains. Comparison of the DNA fingerprint of all the four strains digested with restriction endonucleases BamHI, EcoRI and HindIII revealed identical banding pattern thereby conforming the genetic similarity of the strains.
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MVSc

In the present study, seroprevalence of EDS-76 was
conducted in five districts of Kerala in duck and'
chicken flocks using HI and ELISA. Out of 322 chicken



and 281 duck sera samples screened,


an overall



incidence of 14.91 per cent and 26.69 per cent
respectively were recorded. The high proportion of
birds showing antibodies to EDS-76 reveals that the
infection is widespread in Kerala and may be the major



etiological


factor


associated


with


drop


in


egg



production in poultry.
Among the two serological tests namely, HI and
ELISA employed for the detection of EDS-76 viral
antibody, HI was found to be simple, sensitive and
reliable. It is concluded that HI test could be used
for the detection of EDS-76 infection in poultry
flocks.



Restriction


DNA fingerprinting


of


the


three



indigenous strains were carried out in conjunction with
the reference strain to check for any genetic variation
between the strains. Comparison of the DNA fingerprint

of all the four strains digested with restriction



endonucleases


BamHI,


EcoRI


and


HindIII


revealed



identical


banding pattern


thereby


conforming


the



genetic similarity of the strains.

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