Browsing by Author "Belay, Kumilachew"

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    A Study on the Prevalence of Bovine Viral Diarrhea Virus (BVDV) in Feedlot and Dairy Farms in and Adound Adama,East Shoa Zone, Ethiopia
    (Debre Zeit, 2009-06) Belay, Kumilachew; Kyule, Mosses N.
    A cross sectional study to assess BVDV prevalence and determine the risk factors and to compare the ELISA diagnostic results of milk and serum values in 40 feedlot and 60 dairy farms was carried out in Adama area, East Shoa Zone. Herds were visited to ascertain information on the management system, possibility of contact with other species of domestic animals, introduction of new animal into the herd and to collect serum samples from feedlot and matched milk and serum samples from dairy herds. Commercial indirect ELISA-kit for the detection of specific antibodies to BVDV was used. According to this study, the apparent individual and herd seroprevalence of BVDV was 3S.9 % and 70.9 %, respectively. The individual and herd seropositivity difference among the two production systems was not significant (p>O.OS). There was a significant difference; however, in the prevalence of the different age groups (pO.OS) affect the antibody prevalence where 88.9% of the extensive and 7S.S % of the semi intensive herds had at least one seroreactor. Although a significant difference (p