Moorkamp L, Hewicker-Trautwein M, Grosse Beilage E
Field Station for Epidemiology, University of Veterinary Medicine Hannover, Foundation, Bakum, Germany.
Transbound Emerg Dis. 2009 Mar;56(1-2):54-6. doi: 10.1111/j.1865-1682.2008.01057.x.
The objective of this study was to determine the occurrence of Mycoplasma hyopneumoniae in the lower respiratory tract of suckling and recently weaned pigs from herds with a history of endemic respiratory disease in this age group. Bronchoalveolar lavage fluid was obtained from 500 clinically affected piglets originating from 50 herds (10 piglets per herd). The presence of M. hyopneumoniae was examined by application of a nested polymerase chain reaction. Mycoplasama hyopneumoniae was detected in lavage fluid in 12.3% of the suckling piglets and 10.6% of the weaned piglets (mean 11.2%). The percentage of herds in which M. hyopneumoniae could not be detected was 72% and in two of the herds all samples were tested positive. Herd level information on relevant hygiene, housing and management factors was obtained by means of a structured questionnaire. The univariable data analysis (odds ratio) showed that the detection of M. hyopneumoniae in young piglets is associated with one- and two-site production and inappropriate gilt acclimatization.
本研究的目的是确定在该年龄组有地方性呼吸道疾病病史的猪群中，哺乳仔猪和刚断奶仔猪下呼吸道中猪肺炎支原体的感染情况。从50个猪群的500头临床发病仔猪（每个猪群10头仔猪）获取支气管肺泡灌洗液。应用巢式聚合酶链反应检测猪肺炎支原体的存在。在12.3%的哺乳仔猪和10.6%的断奶仔猪（平均11.2%）的灌洗液中检测到猪肺炎支原体。未检测到猪肺炎支原体的猪群比例为72%，在其中两个猪群中，所有样本检测均呈阳性。通过结构化问卷获取有关卫生、饲养和管理相关因素的猪群水平信息。单变量数据分析（比值比）表明，在仔猪中检测到猪肺炎支原体与一点式和两点式生产以及后备母猪适应性不良有关。
