The search has been performed on 326 blood sample from cows with different ages and various multi-productive purposes from a number of farms or study points, recording study data for the cows and herds from blood samples to study prevalence antibodies for brucella abortus. Rose Bengal test has shown general widespread results of 11,96% from total of blood samples. The study has shown differences in the percentage of sera-prevalence of antibodies in animals or farms or different study points, which have been studied at a percentage ranged between 0.00% and 22% .