奶牛群中的粘质沙雷氏菌乳腺炎
Serratia marcescens mastitis in a dairy herd.
作者信息
Wilson D J, Kirk J H, Walker R D, Bosworth Q W
机构信息
Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing 48824.
出版信息
J Am Vet Med Assoc. 1990 Apr 1;196(7):1102-5.
Serratia marcescens caused clinical mastitis in 5 cows and nonclinical mastitis in 21 cows of a 190-cow herd. Repeated bacteriologic culture of specimens from the cows, postmilking teat dip, environment, and equipment was performed. Serratia marcescens was not isolated from the dip, environment, or equipment. Progress of the infection in cows was monitored for 10 months. Some cows remained infected with S marcescens for at least 10 months. Economic loss estimates were based on Dairy Herd Improvement Association linear score reports. The average nonclinical loss was about $22/cow.
粘质沙雷氏菌在一个拥有190头奶牛的牛群中，致使5头奶牛发生临床型乳腺炎，21头奶牛发生亚临床型乳腺炎。对奶牛、挤奶后乳头药浴液、环境及设备的样本进行了反复的细菌学培养。未从药浴液、环境或设备中分离出粘质沙雷氏菌。对奶牛感染情况的进展进行了10个月的监测。一些奶牛感染粘质沙雷氏菌至少达10个月。经济损失评估基于奶牛改良协会的线性评分报告。平均每头奶牛的亚临床损失约为22美元。
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