Browsing by Author ". Asfaw, Yilkal (PhD)"

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    Seropreva Alence Study of Brucellosis in Cattle and Human in Bahirdar Milkshed
    (AAU, 2005-06) Hailemelekot, Mussie; . Asfaw, Yilkal (PhD); Kassa, Tesfu (Prof)
    A Cross – Sectional Study Was Conducted In South Gondar, West Gojjam And Awi Zones of Amhara Regional State, Between October 2004 And March 2005, to Determine the Sero – Prevalence of Brucellosis in Cattle and Humans as Well as to Identify the Likely Potential Risk Factors. Two Sage Cluster – Sampling Was Employed, by Which 11 towns as Identified Primary Units and 195 Farms as Secondary Units in Semi – Intensive Production System. Similarly, 29 Peasant Associations as Primary Units and 145 Individual Cattle Owners as Secondary Units Were Selected for the Extensive Production System. in the Government Cattle Breeding Ranch all Eligible Cattle Were Sampled. Human Risk Groups Were Sampled Using Purposive Sampling Method. the Study Methods Involved Collection Serum Sample, Data, Questionnaire Surveys and Serological Tests Conducted in Laboratoris. Accordingly, 1944 Cattle (341 Clusters in the Three Production Systems)Were Sampled. the Sampling Involved all Cattle Above 6 Months of Age With No History of Previous Vaccination Against Brucellosis. the Number of Cattle Sampled in Extensive, Semi – Intensive and Ranch Were 864, 754 and 326, Respectively. the Types of Tests Used to Detect the Presence of Brucella Antibodies Were Rose Bengal Plate Test (RBPT) as Sereening Test, and Complement Fixation Test (CFT) as Confirmatory Test, Results of The Two Tests Were Interpreted Serially. A Cluster Was Said to Be Positive if at Least one Animal Reacts Positively by Both RBPT And CFT.