Regassa Alemayehu, Tassew Asmelash, Amenu Kebede, Megersa Bekele, Abunna Fufa, Mekibib Berhanu, Marcotty Tanguy, Ameni Gobena
Faculty of Veterinary Medicine, Hawassa University, P.O. Box 05, Hawassa, Ethiopia.
Trop Anim Health Prod. 2010 Jun;42(5):915-20. doi: 10.1007/s11250-009-9507-4. Epub 2009 Dec 3.
A cross-sectional study was conducted in Hawassa town and its surroundings from October 2007 to May 2008 to estimate the prevalence of bovine tuberculosis (BTB) based on comparative interadermal tuberculin test (CIDT) and abattoir survey. Accordingly, 39 herds comprising 413 cattle were subjected to CIDT, and the herd and individual animal prevalence were 48.7% (19/39) and 11.6% (48/413), respectively. One of the 16 milk samples collected from tuberculin-positive cows was culture positive. The prevalence significantly differed among the age group (P = 0.001) and management system (P = 0.001). Thus, age group over four (OR = 7.9) and animal with poor management system (OR = 4.1) had a higher odds for tuberculin reactivity compared to those with age group under four and cattle with good management system, respectively. Of the total 1,023 cattle subjected to postmortem examination, 11 (1.1%) were found to be positive for gross tuberculous lesions. Larger proportion (50%) of TB lesion was recorded in the respiratory pathway followed by digestive system (28.6%) and prescapular lymph nodes (21.4%). Of 14 tissue specimens collected from the gross lesions, four (28.6%) were positive for histopathological TB lesions. In conclusion, this study revealed the importance of BTB in the study area in particular and the region in general.
2007年10月至2008年5月，在哈瓦萨镇及其周边地区进行了一项横断面研究，以基于比较皮内结核菌素试验（CIDT）和屠宰场调查来估计牛结核病（BTB）的患病率。据此，对39个牛群共413头牛进行了CIDT检测，牛群和个体动物的患病率分别为48.7%（19/39）和11.6%（48/413）。从结核菌素阳性奶牛采集的16份牛奶样本中，有1份培养呈阳性。患病率在年龄组（P = 0.001）和管理系统（P = 0.001）之间存在显著差异。因此，与4岁以下年龄组的牛和管理良好的牛相比，4岁以上年龄组的牛（OR = 7.9）和管理系统差的牛（OR = 4.1）结核菌素反应阳性的几率更高。在接受尸检的1023头牛中，有11头（1.1%）被发现有明显的结核病变阳性。较大比例（50%）的结核病变记录在呼吸道，其次是消化系统（28.6%）和肩胛前淋巴结（21.4%）。从明显病变采集的14份组织标本中，有4份（28.6%）组织病理学结核病变呈阳性。总之，本研究揭示了牛结核病在该研究区域特别是整个地区的重要性。
