奶牛隐性乳房炎主要病原菌的分离鉴定及耐药性测定

对陕西省杨凌区某奶牛场经体细胞计数(SCC)法确定为隐性乳房炎的20份乳样中的主要病原菌进行分离鉴定,并对分离菌进行耐药性测定。共分离到24株分离菌,其中金黄色葡萄球菌10株,占41.6%;沙门氏菌6株,占25.0%;表皮葡萄球菌5株,占20.8%;大肠埃希菌2株,占8.4%;其他细菌1株,占4.2%。耐药性试验显示,主要分离菌均对庆大霉素和卡那霉素敏感,而对四环素、复方新诺明有较强的耐药性,链霉素、红霉素、氯霉素对分离菌的生长也有明显的抑制作用,建议在临床治疗中联合用药,以取得更好的效果。

Isolation and Identification of Main Bacterial Pathogen in Subclinical Mastitis and Resistance Detection

The main bacterial pathogen were isolated from 20 cow milk samples,which were collected from 20 subclinical mastitis cows demonstrated with somatic cell count(SCC) test,resistance detection was performed in isolated bacteria.The results showed that 24 bacteria were isolated from clinical milk samples,including ten Staphylococcus aureus,six Salmonella,five Staphylococcus epidermidis,two Escherichia coli and one other bacterium,the detection rate of bacteria were 41.6%,25.1%,20.8%,8.4% and 4.2%,respectively.T...