精品文档---下载后可任意编辑阿拉尔市奶牛隐性乳房炎病原菌的分离鉴定及药敏试验的开题报告【摘要】隐性乳房炎在奶牛养殖中极为常见，给奶牛健康、生产甚至经济带来了不良影响。为了深化讨论阿拉尔市奶牛隐性乳房炎病原菌的分离鉴定及药敏试验，本讨论收集了从阿拉尔市 5 个养殖场的 40 头产奶奶牛的乳汁样品，对样品进行了分离培育以及鉴定病原细菌和药敏试验。通过实验讨论，本讨论发现：1）阿拉尔市奶牛隐性乳房炎患病率较高，其中革兰氏阳性菌是最为常见的病原菌；2）收集的奶牛乳汁样品中，分别检出了链球菌和葡萄球菌等多种病原细菌；3）通过药敏试验，发现革兰氏阳性菌对知柏子醇、头孢菌素、红霉素敏感性较好，而对氨苄西林敏感性较差。综上所述，本讨论为阿拉尔市奶牛隐性乳房炎的病原学讨论提供了实验证据，也对该病的防治提供了一定的参考价值。【关键词】隐性乳房炎；奶牛；病原菌；分离鉴定；药敏试验【Abstract】Subclinical mastitis is very common in dairy farming and has adverse effects on the health, production and even economy of dairy cows. In order to deeply study the isolation and identification of pathogenic bacteria and drug sensitivity test of subclinical mastitis in dairy cows in Alar City, this study collected milk samples from 40 lactating cows from 5 breeding farms in Alar City, and conducted isolation and culture, pathogenic bacteria identification and drug sensitivity test on the samples.Through experimental research, this study found that: 1) the incidence of subclinical mastitis in dairy cows in Alar City is high, of which Gram-positive bacteria are the most common pathogenic bacteria; 2) Various pathogenic bacteria such as streptococcus and staphylococcus were detected in the collected milk samples from dairy cows; 3) Through drug sensitivity tests, it was found that Gram-positive bacteria are sensitive to berberine, cefoperazone, and erythromycin, but they are less sensitive to ampicillin.精品文档---下载后可任意编辑In summary, this study provides experimental evidence for the pathogenic study of subclinical mastitis in dairy cows in Alar City, and also provides reference value for the prevention and control of this disease.【Keywords】subclinical mastitis; dairy cow; pathogenic bacteria; isolation identification; drug sensitivity test
