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Infectious bursal disease: seroprevalence and associated risk factors in major poultry rearing areas of Ethiopia

机译：传染性法氏囊病：埃塞俄比亚主要家禽饲养区的血清流行率和相关危险因素

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摘要

The study was conducted in eight districts of Ethiopia with the objectives of determining the seroprevalence and associated risk factors of infectious bursal disease (IBD). From the total of 2,597 chicken serum samples examined using ELISA, 83.1 % were found positive. The highest seroprevalence was found at Mekele (90.3 %) while the lowest was recorded at Gondar district (69.8 %). These differences among the study areas were statistically significant (p < 0.05). Highest seroprevalence was found in crossbreed of chicken (91.4 %) while the lowest was recorded in indigenous breed of chicken (81.4 %). This difference was statistically significant (p < 0.05) among the three breeds of chickens, but sex was not statistically significant (p > 0.05). The seroprevalence of the disease was found high in young (≤8 weeks) age group (86.6 %) while the lowest prevalence was recorded in adults (>8 weeks) (72 %). This is also statistically significant (p < 0.05) between young and adult age groups. The prevalence of IBD in different production system indicated that higher seroprevalence was recorded in intensive production system (85.9 %) while the lowest was recorded in extensive production system (81.6 %). This difference is also statistically significant (p < 0.05).
机译：这项研究是在埃塞俄比亚的八个地区进行的，目的是确定血清阳性率和传染性法氏囊病（IBD）的相关危险因素。使用ELISA检测的2597份鸡血清样本中，有83.1％呈阳性。血清流行率最高的地区是Mekele（90.3％），最低的地区是Gondar地区（69.8％）。研究区域之间的这些差异具有统计学意义（p <0.05）。在鸡的杂种中发现最高的血清阳性率（91.4％），而在本地鸡种中发现的最低。在三种鸡中，这种差异具有统计学意义（p <0.05），但性别之间无统计学意义（p> 0.05）。在年轻人（≤8周）年龄组中发现该疾病的血清流行率较高（86.6％），而在成年人（> 8周）中发现该病的最低流行率（72％）。在青年和成人年龄组之间，这也具有统计学意义（p <0.05）。 IBD在不同生产系统中的患病率表明，集约化生产系统中的血清阳性率较高（85.9％），而集约化生产系统中最低。这种差异在统计上也很显着（p <0.05）。

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