Veterinary Obestrics and Gynaecology
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Browsing Veterinary Obestrics and Gynaecology by Author "Abdelhamid Elfadil"
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Item A Study on Preyalence, Risk Factors and Economic Impact of Sheep Pox in North and South Kordofan States of the Sudan(Addis Ababa University, 2011-12-01) Mohammed Elsadig; Abdelhamid ElfadilThe Current study is an attempt to better understand the epidemiology of sheep pox in the Kordofan region in the western part of the Sudan, which is one of the largest production sites for sheep. The specific objectives were the investigation of potential risk factors associated with sheep pox outbreaks, an assessment of the economic impact of sheep pox disease, the estimation of seroprevalence of sheep pox and to evaluate the test performance characteristics of the indirect ELISA test employed in this study. To practically achieve the objectives, the study was designed as a cross-sectional survey in the Kordofan region, with collection of specimen from the target population of sheep from March to September 2011 ; a concurrent questionnaire did address animal owners and vetelinary professionals. The current study revealed that the estimated overall sero prevalence of SPP in Kordofan region was 20.1 % and that SPP prevails both in SKS and in NKS. Also, a number of risk factors like locality, herd size, insect bites and rain fall/year and traditional treatment were found to be significantly associated with SPP occurrence in the Kordofan region. The average cost of SPP was estimated at 20.5% of ":sheep flock production costs. The Indirect ELISA test to detect antibodies to capripox viruses was evaluated to have a diagnostic sensitivity of 33.33% and a diagnostic specificity of 60%. For VNT, 12 out of the 22 samples were positive, having Neutralization Indices (N.I 2: 1.5) of 3.5, 3, 2.5, 2 and 1.5 recorded for 25%, 8.3%, 8.3%, 25% and 33.3 % of-positive samples, respectively