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首页> 外文期刊>Tropical Animal Health and Production >Seroprevalence of Neospora caninum antibodies in beef cattle in three southern states of Mexico
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Seroprevalence of Neospora caninum antibodies in beef cattle in three southern states of Mexico

机译：墨西哥三个南部州的肉牛中新孢子虫抗体的血清阳性率

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摘要

The aims of the present study were to examine the seroprevalence of neosporosis in beef herds from three southern states of Mexico and determine the association with several risk factors. A cross-sectional serological survey for Neospora caninum was carried out by sampling a total of 596 animals from 31 herds in Chiapas, Veracruz, and Yucatan States and tested using an ELISA assay (IDEXX) to detect anti-N. caninum antibodies. The overall prevalence was 11.6%, (95% CI: 0.93-0.14), however, the prevalence for Chiapas was 15% (30/200) (95% CI: 0.11-0.21), in Yucatan 11.3% (21/186) (95% CI: 0.07-0.17) and in Veracruz 8.6% (18/210) (95% CI: 0.05-0.13). Of the 596 serum samples taken, 578 were from females and 18 were bulls., Only one bull sample was found seropositive from one herd in Veracruz State. The overall herd-prevalence was 70.9% (22/31) (95% CI: 0.53-0.84), and by State was: Chiapas 90% (9/10) (95% CI: 0.60-0.98); Yucatan 72.7% (8/12) (95% CI: 0.39-0.86); and Veracruz 50% (5/10) (95% CI: 0.24-0.76), respectively. The highest age-prevalences were found in animals 1 yr old (19.4% [95% CI: 0.01-0.35]) and 4 yrs old (19.6% [95% CI: 0.12-0.29]), and the lowest in animals 3 -yrs of age (6.2%,[95% CI: 0.02-0.20]). No association was found among all the variables tested in this study since most of the ranches have similar management conditions. In conclusion, N. caninum infection is common among beef herds in the Mexican tropics.
机译：本研究的目的是检查来自墨西哥南部三个州的牛肉群中新孢子虫病的血清阳性率，并确定与几种危险因素的关系。通过在恰帕斯州，韦拉克鲁斯州和尤卡坦州的31个牛群中对596只动物进行采样，对犬新孢子虫进行了横断面血清学调查，并使用ELISA法（IDEXX）进行了检测以检测抗N抗体。犬抗体。总体患病率为11.6％（95％CI：0.93-0.14），但是恰帕斯州的患病率为15％（30/200）（95％CI：0.11-0.21），尤卡坦州的患病率为11.3％（21/186） （95％CI：0.05-0.13）（95％CI：0.07-0.17）和韦拉克鲁斯（Veracruz）8.6％（18/210）。在所采集的596个血清样本中，有578个来自雌性，18个是公牛。在韦拉克鲁斯州，仅发现一头牛群血清阳性。总体畜群流行率为70.9％（22/31）（95％CI：0.53-0.84），按州分类：恰帕斯州为90％（9/10）（95％CI：0.60-0.98）;尤卡坦州72.7％（8/12）（95％CI：0.39-0.86）;和Veracruz 50％（5/10）（95％CI：0.24-0.76）。在1岁（19.4％[95％CI：0.01-0.35]）和4岁（19.6％[95％CI：0.12-0.29]）的动物中发现年龄最高的动物，而在3-岁（6.2％，[95％CI：0.02-0.20]）。由于大多数牧场的管理条件相似，因此在本研究测试的所有变量之间均未发现关联。总之，在热带地区的牛群中，犬新孢子虫感染很普遍。

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