中文摘要：研究从猪舍中5种不同表面分离得到6种肺炎支原体，分别将他们暴露于4°、25°和37°三种不同温度环境中12天，分析这些支原体的体外存活情况。至少有一种表面（除了不锈钢）分离到的肺炎支原体能在4°环境下存活8天，在25°和37°环境下只能存活2天。总之，与其它表面得到的支原体相比，灰尘和聚丙烯表面的肺炎支原体存活时间更长，肺炎支原体体外存活时间最长为8天。
外文摘要：Porcine enzootic pneumonia (EP) caused by Mycoplasma hyopneumoniae adversely affects pig welfare and is associated with major economic losses in the pig industry worldwide. Transmission is predominantly by direct contact, but the role of indirect transmission remains poorly understood. This study examined survival of six M. hyopneumoniae isolates dried onto five different surfaces encountered in pig units and exposed to temperatures of 4, 25 and 37 degrees C for up to 12 days. Survival of the organisms was determined by recovering the organism from the surface material and culturing in Friis broth. Data were analysed by logistic regression to identify factors influencing survival of M. hyopneumoniae. Maximum survival was 8 days for all isolates on at least one surface ( except stainless steel) at 4 degrees C and was limited to 2 days at 25 and 37 degrees C. Overall, dust and polypropylene copolymer supported M. hyopneumoniae survival the longest when compared with other surface materials. In conclusion, we have demonstrated that M. hyopneumoniae can survive outside the host for at least 8 days.
外文关键词：dust；indirect transmission；management；mycoplasma；survival；temperature
作者：Browne, C; Loeffler, A; Holt, HR; Chang, YM; Lloyd, DH; Nevel, A
作者单位：英国皇家兽医学院
期刊名称：LETTERS IN APPLIED MICROBIOLOGY
期刊影响因子：1.579
出版年份：2017
出版刊次：1
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