Seroprevalence Study of Bovine Brucellosis in Two Districts of East Gojjam Zone of Amhara Regional State
No Thumbnail Available
Date
2011-04-30
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Addis Ababa University
Abstract
A cross sectional sero-prevalence study was conducted on 600 cattle in Machakel and Dejen districts of East Gojjam administrative zone, Amhara region, Ethiopia, to investigate the status of bovine brucellosis and identify potential risk factors associated with the disease. Sera samples were analyzed using Rose Bengal Plate Test and Complement Fixation Test to detect specific antibodies against Brucella abortus. Overall sero-prevalence of bovine brucellosis in the study districts of Amhara region was found to be S.3% (32/600). However, no statistically significant difference (P>O.OS , P=0.467) in seroprevalence was observed between the two study districts, Machakel (6%) and Dejen (4.7%). The sero-prevalence was closely associated with some of the risk factors considered at individual animal. Both univariable and multivariable logistic regression analyses showed statistically significant association (p=0.008, OR= S.7) was observed between brucellosis seropositivity and Kebeles. In contrast, risk of seropositivity was no statistically associated (P>O.OS) with risk factors such as breed, age, and sex. Questionnaire survey results of 120 respondent fanners (households) to gather information about bovine brucellosis in the study districts showed that, 61 (SO.8%) of cattle owners were not aware of bovine brucellosis, 81 (67 .S%) had no separate calving pen, and 107(89.2%) did not practice safe disposal of fetal membrane and aborted fetuses. The occurrence of abortion, stillbirth and retained foetal membranes were also high 79(6S.8%) in their animals. Most of peasants, 74(61.7%) used natural breeding mating, 40(33.3%) opted AI and 6(S.0 %) used both artificial insemination and natural breeding methods. In conclusion, this study showed bovine brucellosis was prevalent in the study area, however, the occurrence of the disease, its effect as a major cause of abortion was not recognized including its public health implication.
Description
Keywords
Bovine brucellosis, Brucella abortus, Seroprevalence, epidemiological risk East Gojjam, Ethiopia