Prevalence of brucellosis in dairy herds with abortion problems [Yavru atma problemli süt si{dotless}ǧi{dotless}ri{dotless} sürülerinde brusellozis'in görülme si{dotless}kli{dotless}ǧi{dotless}]

Two thousand eight hundred sixty nine cattle blood serum samples collected from 55 dairy cattle herds selected by purposive sampling method were examined for brucellosis. herd level seroprevalence was found to be 56.4%,38.2% and 43.6% by rose bengal plate test (rbpt),acidified rose bengal plate test (arbpt) and serum agglutination test (sat),respectively. individual animal seroprevalence was found as 6.8% by sat. according to herd sizes,≤20 cattle; 21-40 cattle; 41-60 cattle; 61-80 cattle and ≥81 cattle,herd level seropositivity detected by sat were 14.3%,30.8%,50.0%,66.7% and 71.4%,respectively. in majority of seropositive herds (45.8 %),within-herd seroprevalence was between 1 and 10%. by this study,it is stated that brucellosis infection is common in the dairy cattle herds with abortion problems in burdur province and larger herds are at higher risk for brucellosis. additionally,it is concluded that rbpt and arbpt can be used together for diagnosis of brucellosis,but the serum samples found negative in arbpt should be examined by sat or another serological test since arbpt could not detect the titers lower than 1/80.