兰州地区奶牛乳房炎流行病学及病原菌调查  

Investigation of epidemiology and pathogenic bacteria of mastitis in dairy cows from the Lanzhou area

作　　者：罗金印[1] 李宏胜[1] 李新圃[1] 杨峰[1] 

机构地区：[1]中国农业科学院兰州畜牧与兽药研究所,兰州730050

出　　处：《黑龙江畜牧兽医》2015年第11期164-166,共3页Heilongjiang Animal Science And veterinary Medicine

基　　金："十二五"国家科技支撑计划项目(2012BAD12B03);甘肃省自然科学基金项目(1308RJZA119)

摘　　要：为了开展兰州地区奶牛乳房炎流行病学及病原菌的调查研究,试验应用LMT诊断液对兰州地区4个中等规模奶牛场的344头泌乳牛的1 237个乳区进行了隐性乳房炎检测,并对临床型乳房炎乳样进行了病原菌的分离鉴定。结果表明:奶牛隐性乳房炎的头阳性率为58.43%,乳区阳性率为36.86%;临床型乳房炎的头发病率为5.52%,乳区发病率为2.91%;主要病原菌检出率为无乳链球菌30.0%、大肠杆菌27.1%、金黄色葡萄球菌21.4%。说明兰州地区奶牛乳房炎发病率较高,病乳中无乳链球菌、大肠杆菌和金黄色葡萄球菌的检出率较高。To launch an investigation of epidemiology and pathogenic bacteria of mastitis in dairy cows from the Lanzhou area, Lanzhou mastitis test （LMT） diagnosticum was applied to detect subclinical mastitis in 1 237 udder areas of 344 lactating cows in four medium - sized dairy farms from the Lanzhou area, and milk samples of clinical mastitis were used to isolate and identify pathogenic bacteria. The results showed that the positive rate of the head for subclinical mastitis in dairy cows was 58.43%, and the positive rate of the udder area was 36.86%. The incidence rate of the head for clinical mastitis was 5.52%, and the incidence rate of the udder area was 2.91%. The detection rates of main pathogenic bacteria were as follows： 30.0% Streptococcus agalactiae （ S. agalactiae ） , 27.1% Escherichia coli （ E. coli ） , and 21.4% Staphylococcus aureus （ S. aureus）. The results indicate that there is a higher incidence of mastitis in dairy cows from the Lanzhou area, as well as a higher detection rates of S. agalactiae,E, coli and S. aureus in the milk samples.

关 键 词：奶牛 乳房炎 LMT诊断液 流行病学 病原菌 调查 

分 类 号：S857.26[农业科学—临床兽医学]