【摘要】 在对山东7个地区14个奶牛场临床型和隐性乳腺炎调查的基础上采集234头临床乳腺炎病牛乳样、241个隐性乳腺炎乳样并分别做了细菌学检查,结果表明:泌乳期临床型乳腺炎病原菌以凝固酶阴性葡萄球菌、金黄色葡萄球菌、链球菌、酵母菌和棒状杆菌为主;干奶期临床型乳腺炎病原菌以大肠杆菌、链球菌、金黄色葡萄球菌、凝固酶阴性葡萄球菌和酵母菌为主;隐性乳腺炎病原菌以凝固酶阴性葡萄球菌、金黄色葡萄球菌链球菌、酵母菌、假单胞菌和棒状杆菌为主;厌氧菌在隐性乳腺炎、干奶期乳腺炎和干奶期乳腺炎乳样的捡出率分别为 5．82％,4．17%,10．16％;隐性乳腺炎、干奶期乳腺炎细菌的共感染率较高,与泌乳期乳腺炎病原菌的差异极显著(P<0．01),隐性乳腺炎与干奶期乳腺炎病原菌共感染率差异不显著(P >0．05)。更多还原

【Abstract】 The mastitis dairy cows were investigated on fourteen dairy cattle farms in Shandong. A total of 234 clinical mastitis milk samples and a total of 241 subclinical mastitis milk samples were collected for bacterial inspection. The results indicated that: The majority of bacteria which caused clinical mastitis in lactation cows was coagulase-negative Staphylococcus, S. aureus, Streptococcus, yeast and Corynebacteri-um. E.coli, Streptococcus, coagulase-negative Staphylococci, S. aureus and yeast took major part in clinical mastitis milk samples of dry period cows. The bacteria which took high inspection rates in subclinical mastitis milk samples were coagulase- negative Staphylococci, S. aureus, Streptococcus, yeast, Pseu-domonas and Corynebacterium. The anaerobe inspection rates in lactating clinical mastitis, subclinical mastitis and dry milk cows clinical mastitis milk samples were 5. 82%, 4. 17% and 10. 16% respectively. The Co-infection rate was very high in subclinical mastitis and dry milk mastitis(P<0. 01). But the co-infective rate between subclincal mastitis and dry milk mastitis was not different (P>0. 05).更多还原