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首页> 外文期刊>Turkish Journal of Veterinary and Animal Sciences >Prevalence and etiology of subclinical mastitis in Awassi dairyewes in southern Turkey
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Prevalence and etiology of subclinical mastitis in Awassi dairyewes in southern Turkey

机译:土耳其南部Awassi奶类的亚临床乳腺炎患病率和病因

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摘要

In order to study the prevalence and etiology of subclinical mastitis a bacteriological survey on 16 Awassi dairy sheep flocks in southern Turkey was conducted. A total of 1458 milk samples from 729 Awassi ewes in mid-lactation were tested with the California mastitis test (CMT). Samples from 170 (11.7%) glands and 135 (18.5%) sheep had positive CMT results. Bacteria were isolated from 93 (6.4%) udder halves and 82 (11.2%) ewes. Positive CMT and bacteriological results were combined to define subclinical mastitis. The prevalence of subclinical mastitis and positive CMT samples among the different flocks ranged from 1.9% to 11.5% and 2.8% to 21.9% of the glands, and 3.8% to 19% and 5.7% to 31.3% of the ewes, respectively, with averages of 6.4% and 11.7% of the glands, and 11.2% and 18.5% of the ewes, respectively. Coagulase-negative staphylococci (CNS) were the most prevalent bacteria, representing 76.5% of the isolates. Staphylococcus epidermidis (35.7%) was the most prevalent species, followed byStaphylococcus xylosus (10.2%), Staphylococcus saprophyticus (10.2%), Staphylococcus warneri (9.2%), and Staphylococcus intermedius (7.1%). Antimicrobial susceptibility of 78 Staphylococcus isolates was evaluated in this study. The most effective antibiotics were cephalothin (97.4%), sulfamethoxazole-trimethoprim (97.4%), amoxicillin + clavulanic acid (97.4%), enrofloxacin (94.9%), gentamycin (92.3%), and erythromycin (84.6%). The relationship between CMT +1 score and the Staphylococcus spp. isolation rate was statistically significant (P < 0.001). It was concluded that subclinical mastitis is not highly prevalent and it does not pose a significant health problem for milking Awassi sheep flocks in southern Turkey.
机译:为了研究亚临床乳腺炎的患病率和病因,对土耳其南部的16个Awassi奶牛羊群进行了细菌学调查。使用加利福尼亚乳腺炎测试(CMT)对泌乳中期的729头Awassi母羊进行了总共1458例牛奶样品的测试。来自170个(11.7%)腺和135个(18.5%)绵羊的样品的CMT结果均为阳性。从93(6.4%)个半乳房和82(11.2%)母羊中分离出细菌。结合阳性CMT和细菌学结果确定亚临床乳腺炎。不同羊群中亚临床乳腺炎和阳性CMT样本的患病率分别为腺体的1.9%至11.5%,2.8%至21.9%,母羊的3.8%至19%和5.7%至31.3%分别占6.4%和11.7%的腺体,11.2%和18.5%的母羊。凝固酶阴性葡萄球菌(CNS)是最流行的细菌,占分离株的76.5%。表皮葡萄球菌(35.7%)是最普遍的种类,其次为木糖葡萄球菌(10.2%),腐生葡萄球菌(10.2%),沃纳氏葡萄球菌(9.2%)和中间葡萄球菌(7.1%)。在这项研究中评估了78株葡萄球菌的抗菌药敏性。最有效的抗生素是头孢菌素(97.4%),磺胺甲恶唑-甲氧苄啶(97.4%),阿莫西林+克拉​​维酸(97.4%),恩诺沙星(94.9%),庆大霉素(92.3%)和红霉素(84.6%)。 CMT +1评分与葡萄球菌属之间的关系。隔离率具有统计学意义(P <0.001)。结论是,亚临床乳腺炎并不十分普遍,对于土耳其南部的Awassi羊群挤奶也不构成重大健康问题。

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