[绵羊肺炎支原体对羔羊的自然感染与实验性感染]

[Natural and experimental infections of lambs with Mycoplasma ovipneumoniae].

作者信息

Bocklisch H, Pfützner H, Zepezauer V

出版信息

Arch Exp Veterinarmed. 1989;43(5):755-61.

Abstract

Mycoplasma (M.) ovipneumoniae was isolated pure or mixed with bacteria from 47 lungs of lambs of 14 in 22 tested flocks. M. ovipneumoniae was obtained as pure culture in cases of mild bronchopneumonia. Experimental intratracheal or intranasal infection caused several days of rising body temperature above 39.7 degrees C. Nasal discharge, coughing, and dyspnea did not occur. M. ovipneumoniae was successfully re-isolated from nasal swabs, beginning 2 d from infection. Lobular catarrhal bronchopneumonia was established by postmortem examinations, 10-14 d from infection, and M. ovipneumoniae was re-isolated from the lungs. Histological patterns of lungs were characterised by interstitial cell reactions.

摘要

从22个受测羊群中14只羔羊的47个肺脏中分离出了纯的绵羊肺炎支原体或与细菌混合的绵羊肺炎支原体。在轻度支气管肺炎病例中获得了绵羊肺炎支原体的纯培养物。实验性气管内或鼻内感染导致体温连续数天高于39.7摄氏度。未出现鼻液、咳嗽和呼吸困难。从感染后第2天开始，从鼻拭子中成功重新分离出绵羊肺炎支原体。感染后10 - 14天通过尸检确定为小叶性卡他性支气管肺炎，并从肺脏中重新分离出绵羊肺炎支原体。肺脏的组织学特征为间质细胞反应。