Microbiology and pathology of fibrinous pericarditis in Danish slaughter pigs
Microbiology and pathology of fibrinous pericarditis in Danish slaughter pigs
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DOI：
10.1111/j.1439-0442.1997.tb01111.x
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发表时间：
1997-07-01
期刊：
影响因子：
--
通讯作者：
Mousing, J
中科院分区：
文献类型：
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作者：
Buttenschon, J;Friis, NF;Mousing, J
在丹麦屠宰猪中，屠宰时检出的病毒性心包炎的患病率约为0.02%。通过1994年5月至1995年8月屠宰时收集的46例现场病例，研究了这种疾病的微生物学和病理学。支原体（猪支原体，M. 38例从心包中分离出猪滑液囊炎和猪鼻支原体，6例从关节中分离出猪鼻支原体。M.心包分离株以心包积液为主，有33株。从3例心包中分离到胸膜肺炎放线杆菌（1例为单一感染，化脓放线菌（Actinomycespyogenes）2次（1例为单纯感染，1例与M.另一个是透明的）。A.其中一名病人的肺，肝及肾亦发现化脓。在三个病例中，从心包分离到猪链球菌和支原体。3例心包无菌，2例含有低级混合植物群;后者被认为是屠宰程序的结果，而不是感染。未发现与微生物检查相关的衣原体。1例心包和2例脾脏中发现细小病毒。45例仅为亚急性合并慢性。大体病理检查示支气管肺炎、慢性胸膜炎、滑膜炎或轻度关节炎。只有关节炎病变被认为是并发心包炎的发病机制。在6例病例中存在轻微的肝脏淤滞和/或血管周围水肿证据。组织病理学检查证实了上述结果。在所有病例的心包炎层内均发现细菌菌落，其中A。pleuropneumoniae，A.化脓性链球菌或S.分离猪。结论是，在这项研究中，支原体，特别是近红外。心包炎是屠宰猪中更可能引起坏死性心包炎的原因。
The prevalence of fibrinous pericarditis detected at slaughter in Danish slaughter pigs is approximately 0.02 %. The microbiology and pathology of this disorder was studied through 46 field cases collected at slaughter from May 1994 to August 1995. Mycoplasmas (Mycoplasma hyopneumoniae, M. hyosynoviae and M hyorbinis) were isolated from the pericardium in 38 cases and from the joints in six. M. Hyopneumoniae dominated with 33 isolates from the pericardium. Actinobacillus pleuropneumoniae was isolated from the pericardium in three cases (as mono-infection in one and together with M., hyopneumoniae in two cases) and Actinomyces pyogenes was isolated from the pericardium twice (as mono-infection in one case and together with M. hyopneumoniae in another). A. pyogenes was also present in the lung, liver and kidney in one of these cases. Streptococcus suis was isolated together with mycoplasmas from the pericardium in three cases. The pericardium was sterile in three cases and contained a low grade mixed flora in two; the latter is believed to be a result of the slaughter procedure rather than an infection. No chlamydiae were found in connection with the microbiological examination. Parvovirus was found in one case in the pericardium and in two cases in the spleen. Forty-five cases mere subacute co chronic. The gross pathological examination showed that bronchopneumonia, chronic pleuritis and synovitis or a low grade arthritis occurred in most cases. Only the arthritic lesions are believed to be pathogenetically concurrent with the pericarditis. Slight evidence of stasis of the liver and/or periangiolar edema was present in six cases. The histopathological examination confirmed the above mentioned findings. Bacterial colonies were found within the fibrinous layer on the pericardium in all cases from which either A. pleuropneumoniae, A. pyogenes or S. suis was isolated. It is concluded that in this study mycoplasmas, particularly nir. Hyopneumoniae, are the more likely cause of fibrinous pericarditis in slaughter pigs.