EVALUATION OF VACCINATION DURING DISEASE OUTBREAK AS A DISEASE CONTROL OPTION: CASE STUDY ON NEWCASTLE DISEASE
ABSTRACT This study investigated the response to Newcastle disease vaccination in previously vaccinated and unvaccinated poultry flocks experimentally infected with Newcastle disease virus. A total of 90 day old cockerel chicks procured from a local hatchery were used for the study. They were brooded under deep litter system for 3 weeks after which they were divided into 2 groups, A and B of 45 birds per group. Members of group ...
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