In order to figure out the production structure of cattle and sheep and the Brucellosis epidemic status,so as to provide references for formulating related prevention and control measures,an investigation was carried out towards the situation of production,transportation and immunization of cattle and sheep by filling out the presupposed registration form. Using the stratified sampling method,24 farms were then randomly selected from each county,and 24 serum samples were randomly collected from these selected farms. At last,the Brucellosis infection situation was obtained by the combination detection of rose bengal plate agglutination test(RBT)and tube agglutination test(SAT). Results showed that the large-scale production of cattle and sheep accounted for 83.06% and 52.47% respectively in Jiangsu Province,indicating a high degree of the scale production. The quantity of cattle and sheep which were transferred from outside Jiangsu Province was small,but these animals had wide source. Parts of cattle and sheep were immunized with Brucella vaccines,and the Brucellosis positive rate of cattle at the herd level was 2.93%(95% CI:1.01%-4.84%),at the individual level was 0.28%(95%CI:0.21%-0.35%). Besides,no sheep was infected by Brucella according to the detection.As a conclusion,the Brucellosis infection level was low in Jiangsu Province, which was beneficial to its eradication. In order to prevent and control the disease,live livestock derived from the 1st Class Area would not be allowed to transfer into Jiangsu Province,and immunization of Brucella vaccines must be prohibited.%为摸清江苏省牛羊养殖结构和布鲁氏菌病流行情况,从而为该病防控决策的制定提供借鉴,采用预设表格登记方法,了解全省牛羊养殖、调入和免疫情况;采用分层抽样方法,在每县随机抽取24个牛羊场,每场24份血清样品,进行虎红平板凝集试验(RBT)和试管凝集试验(SAT)组合检测,了解布鲁氏菌病感染情况.结果显示:江苏省牛规模养殖占比83.06%,羊规模养殖占比52.47%,规模化程度较高;外地调入数量较少,但来源地较广;部分牛羊实施了布鲁氏菌病免疫;牛群布鲁氏菌病阳性率为2.93%(95% CI:1.01%~4.84%),个体阳性率为0.28%(95%CI:0.21%~0.35%);羊群中未检出布鲁氏菌病阳性.结果表明:江苏省牛羊布鲁氏菌病感染水平较低,利于净化;对其防控,须阻断活畜从一类地区调入,禁止布鲁氏菌病免疫.
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