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題名 | 臺灣省中部地區乳牛潛在性乳房炎之細菌學研究=Bacteriological Studies on Subclinical Mastitis Occurring at the Middle Area of Taiwan |
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作者 | 趙瑞龍; 楊忠亮; 董好德; 張登欽; | 書刊名 | 臺灣畜牧獸醫學會會報 |
卷期 | 67:2 1997.06[民86.06] |
頁次 | 頁93-99 |
分類號 | 437.3、437.3 |
關鍵詞 | 潛在性乳房炎; 乳房炎病原菌; Subclinical mastitis; Bovine mastitis pathogen; |
語文 | 中文(Chinese) |
中文摘要 | 民國81年8月至82年6月間,本實驗室以加州乳房炎測試法(California mastitis test; CMT) 進行中部五縣市之乳牛分房健康檢查;結果共計檢出 691 個潛在性乳房炎之異 常分房 (CMT2 級以上 ),其檢出率為 17.4% (691/3968)。 經進一步對該 691 個異常分房 進行病原菌的分離研究, 得知:(1) 採用選擇性培養基 TKT/FC medium 分離鏈球菌時,其 檢出率要較一般性培養基高出 1.9 倍,呈顯著差異 (P<0.05);(2) 潛在性乳房炎中,屬單 一病菌感染者 55.2% (382/691),兩種病菌混和感染者 16.6% (115/691),無法檢出病菌者 28.2% (194/691); (3) 兩種病菌混合感染的形態 (pattern) 中, 以 Micrococcaceae + Strep. spp 最多 (41.7%; 48/115), 其次分別是 Strep. spp + Strep. spp (33.0%; 38/115) 及 Gram-negative bacilli + Strep. spp (21.6%;25/115); (4) 十大潛在性乳 房炎病原菌及其出現率依序是: coagulase-negative staphylococci 25.7%, Strep. uberis 12.3%, Strep. dysgalactiae 10.3%, other Streptococcus 9.6%, Strep. faecalis 8.3% , coagulasae-positive staphylococci 3.6%, 及 Pseud. aeruginosa 3.4%; (5) 病原菌之感染來源 (sources of infection) 類別出現率分別為: 環境性病菌 49.3%,機會性病菌 25.7%,接觸性病菌 11.1%,及其他者 13.9%。 |
英文摘要 | A survey of the prevalence of bovine subclinical mastitis around 5 counties located at the middle area of Taiwan was conducted by employing the California mastitis test (CMT) from Aug. 1992 till June 1993. Totally, 691 out of the 1968 udders examined were found to have the CMT value reaching 2 and 3 degrees indicating that 17.4% (691/3968) of the bovine udders were infected with subclinial mastitis. Further bacteriological examination of the 691 abnormal udders revealed that: (1) isolation rate of streptococci from the abnormal milk by using TKT/FC selective medium was 1.9 times more efficient than that of using the common medium (2) percentages of the 691 abnormal udders infected with single, double, or nondetectable pathogens were founded to be 55.2%, 16.6%, and 28.2%, respectively, (3) among the 115 mixed-infection udders, the pattern of "Micrococcace + Strep. spp" was the most prominant one, with the incidce rate reaching 41.7% (48/115), followed with two other patterns, namely the Strep. spp + Step. spp and the Gramnegative bacilli + Strep. spp, (4) the ten-most-often-encountered pathogens with their incidence reates were as followed: coagulase-negative staphylococci 25.7%, Strep. uberis 12.3%, Strep. dysgalactiae 10.3%, other streptococcus 9.6%, Strep. faecalis 8.3%, coagulase-positive staphylococci 6.3%, Strep. agalactiae 4.9%, E. coli 4.3%, Strep. bovis 3.6%, and Pseud. aeruginosa 3.4% (5) incidence rates of pathogens, cataloged by the source of infection, were: environmental pathogen 49.3% opportunistic pathogen 25.7%, contagious pathogen 11.1%, and others 13.9%. |
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