Seroprevalence of Neospora caninum Infection in Dairy Cattle of Southern China
Seroprevalence of Neospora caninum Infection in Dairy Cattle of Southern China
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DOI：
10.1645/ge-2643.1
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发表时间：
2011-02
期刊：
影响因子：
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通讯作者：
H. Xia;Dong‐Hui Zhou;K. Jia;Xiangbo Zeng;Dun-Wei Zhang;Li-Xuan She;R. Lin;Zi-Guo Yuan;Shoujun Li;Xing-Quan Zhu
中科院分区：
文献类型：
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作者：
H. Xia;Dong‐Hui Zhou;K. Jia;Xiangbo Zeng;Dun-Wei Zhang;Li-Xuan She;R. Lin;Zi-Guo Yuan;Shoujun Li;Xing-Quan Zhu
2009年7月至2010年3月，对中国所在的广东省南部地区的奶牛进行了犬新孢子虫感染的血清流行病学调查。用酶联免疫吸附试验检测了5个奶牛场370头奶牛血清中犬新城疫抗体。370头奶牛中犬新城疫血清总阳性率为18.9%(70/370)。流产奶牛血清犬新城疫阳性率(22.7%)高于未流产奶牛(16.3%)，但差异无统计学意义(P>；0.05)。5岁奶牛血清阳性率最高(27.8%)，其次是6岁奶牛(20.4%)。有4次妊娠的奶牛血清阳性率最高(29.2%)。犬奈瑟氏菌血清阳性与年龄或怀孕次数没有明显的关联(P>；0.05)。本调查结果表明，犬新城疫在中国南部各年龄段奶牛中均有流行，可能是导致奶牛流产的原因之一。这是中国南部地区奶牛感染犬新城疫血清阳性的首次报道。
Abstract A seroepidemiological survey of Neospora caninum infection in dairy cattle was carried out in China's southern Guangdong Province between July 2009 and March 2010. A total of 370 serum samples of dairy cattle was collected from 5 farms and examined for antibodies to N. caninum by enzyme-linked immunosorbent assay. The overall seroprevalence of N. caninum in dairy cattle was 18.9% (70/370). The seroprevalence of N. caninum in aborting cows (22.7%) was higher than that in nonaborting cows (16.3%), but the difference was not statistically significant (P > 0.05). Five-yr-old dairy cattle had the highest seroprevalence (27.8%), followed by those that were 6-yr-old (20.4%). Dairy cattle with 4 pregnancies had the highest seroprevalence (29.2%). There was no apparent association of N. caninum seropositivity with age or number of pregnancies (P > 0.05). The results of the present survey indicated that the infection with N. caninum is prevalent in dairy cattle of all ages in southern China, which may be one of the causes of bovine abortion. This is the first report of seroprevalence of N. caninum in dairy cattle in southern China.