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首页> 外文期刊>Tropical Animal Health and Production >Factors associated with severity of bovine tuberculosis in Ethiopian cattle
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Factors associated with severity of bovine tuberculosis in Ethiopian cattle

机译：埃塞俄比亚牛的牛结核病严重程度相关因素

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Bovine TB is a disease of high economic and public health importance particularly in resource poor countries. Many aspects of pathogenesis of bovine TB in cattle have not been well understood. We carried out an investigation on 337 Ethiopian cattle with characteristic TB-like lesions to describe severity of pathology and factors associated with it. Severity of pathology was determined based upon gross lesion characteristics, distribution and presence/absence of viable mycobacteria. Molecular speciation of mycobacteria was performed using Gene-Probe's Accu-Probe method. was identified by genomic deletion analysis and spoligotyping. Data were analysed using descriptive statistics and regression model. The results showed that TB-like lesions and were more frequently observed in lungs and respiratory lymph nodes. Mammary lesions yielded significant proportion of upon culturing. Intestinal lesions were the second most frequently encountered pathology; upon culturing, however, the tissue specimens yielded the lowest proportion of isolates. Sex, breed and management system were found to significantly affect TB manifestation. Female ( +/- SE = 4.1 +/- 1.0; = 0.00) and exotic breed ( +/- SE = 1.7 +/- 0.9; = 0.045) were at a relatively higher risk of developing severe tuberculosis. TB pathology was more severe in cattle raised under large-scale farming ( +/- SE = 2.3 +/- 0.5; = 0.00). The fact that severe tuberculosis is linked to high degree of disease transmission potential warrants implementation of proper disease surveillance programs in large-scale farms. Isolation of from mammary and muscle tissues implies a potential threat of zoonotic transmission, where raw milk and raw beef constitute a customary dietary regimen in Ethiopia.
机译：牛结核病是一种具有高度经济和公​​共卫生重要性的疾病，尤其是在资源贫乏的国家。牛中牛结核病发病机制的许多方面尚未得到很好的了解。我们对337例具有特征性TB样病变的埃塞俄比亚牛进行了一项调查，以描述病理学的严重程度及其相关因素。根据总的病变特征，分布和是否存在活的分枝杆菌来确定病理的严重程度。分枝杆菌的分子形态使用Gene-Probe的Accu-Probe方法进行。通过基因组缺失分析和聚类分析鉴定。使用描述性统计和回归模型分析数据。结果表明，结核样病变在肺和呼吸淋巴结中更常见。乳腺病变在培养时产生显着比例。肠道病变是第二常见的病理。然而，在培养时，组织标本产生最低比例的分离物。发现性别，品种和管理系统会显着影响结核病的表现。雌性（+/- SE = 4.1 +/- 1.0; = 0.00）和外来种（+/- SE = 1.7 +/- 0.9; = 0.045）患上严重结核病的风险相对较高。大规模饲养的牛的结核病病理更为严重（+/- SE = 2.3 +/- 0.5; = 0.00）。严重的结核病与高度的疾病传播潜力有关的事实，需要在大型农场实施适当的疾病监测计划。从乳腺和肌肉组织中分离出来意味着人畜共患病的潜在传播威胁，在埃塞俄比亚，原奶和生牛肉构成了习惯的饮食习惯。

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