新疆褐牛与荷斯坦牛隐性乳房炎与体细胞数、病原菌种类的比较  

The Compare Subclinical Mastitis with Somatic Cell Count and Category of Pathogenic Bacteria between Xinjiang Brown Cattle and Chinese Holstein Cattle

作　　者：张雪梅[1] 刘明军[1] 谭立新[1] 张宁[1] 玛依拉[1] 

机构地区：[1]新疆畜牧科学院农业部家畜繁育生物技术重点开放实验室,乌鲁木齐830000

出　　处：《中国畜牧兽医》2009年第6期112-115,共4页China Animal Husbandry & Veterinary Medicine

基　　金：国家973前期专项(2007CB116304)

摘　　要：本试验以新疆乌鲁木齐市地区一大中型奶牛场的新疆褐牛、荷斯坦牛奶样为研究对象,对奶样进行了病原菌分离培养,同时对不同品种牛体细胞数与菌落形成单位（colony-forming unit,CFU）、体细胞数与不同年龄进行了统计分析。结果表明,2个品种牛感染病原菌种类稍有差别且新疆褐牛感染葡萄球菌的机率明显高于荷斯坦牛 荷斯坦牛比新疆褐牛更容易患乳房炎 新疆褐牛、荷斯坦牛体细胞在小于20万/mL时均与体细胞大于50万/mL时的CFU值呈显著差异（P〈0.05）,而这2个品种牛的体细胞在20~50万/mL时分别与体细胞小于20万/mL、大于50万/mL时的CFU值均无显著差异（P〉0.05）,初步推测体细胞数和细菌总数之间没有必然联系,还受其它因素影响 此外,随着年龄增长,褐牛和荷斯坦牛的体细胞评分（somatic cell score,SCS）都呈上升趋势,且不同品种间的SCS差异显著。Milk samples of Xinjiang Brown cattle and Chinese Holstein cattle from Urumqi breeding cattle farm were collected and isolated culture. The effects of subclinical mastitis on different varieties were compared, information of somatic cell counts （SCC） and colony forming units（CFU）, SCC and different ages from different varieties were analyzed. The results showed that there was difference on category of pathogenic bacteria and Xinjiang Brown cattle was prior to Chinese Holstein cattle on the infected rate of Staphylococci; the former has a stronger resistance to disease than the latter; there was a ex- tremely significant association two varieties between CFU of SCC〈200 thousand /mL and CFU of SCC〉500 thousand /mL （P〈0.05）, while there was no significant correlation between CFU of 200 thousand/mL〈SCC〈500 thousand/mL and CFU of SCC〈200 thousand/mL,SCC〈500 thousand/mL（P〉0.05） ,statistical analysis on complete SCC and culture data showed no association between SCC and bacterial isolation and there was other factors; there was the trend of escalation on SCS of Xinjiang Brown cattle and Chinese Holstein cattle and there was significant correlation on SCS of different varieties.

关 键 词：隐性乳房炎 体细胞数 菌落形成单位 

分 类 号：S857.26[农业科学—临床兽医学]