Jilo Tache Kula, Getachew Yitbarek, Negussie Haileleul
School of Veterinary Medicine, Borena University, Borena, Yabelo, Ethiopia.
Department of Clinical Studies, College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu, Ethiopia.
Vet Med (Auckl). 2022 Sep 14;13:247-256. doi: 10.2147/VMRR.S377408. eCollection 2022.
Neosporosis is a major cause of abortion in smallholder dairy farms in Ethiopia. However, its status and impact in pastoral cattle production settings were uncovered. This study was performed with the aims of estimating the seroprevalence and associated potential risk factors for in Boran cattle in Teltelle district of Borana zone, Ethiopia.
180 blood samples were collected from 48 randomly selected pastoral herds using a multistage sampling technique and subjected to an indirect enzyme-linked immunosorbent assay (ELISA) test to detect antibodies specific to . A questionnaire survey was also used to identify the potential risk factors of in the study area. Evaluation of the associated risk factors was conducted using a multivariable logistic regression model.
Antibodies against exposure were detected in 5% of cattle (95% CI: 1.816-8.184) from 180 animals tested. Similarly, the seroprevalence of in herds with at least one positive animal was 14.6% (95% CI: 4.598-24.567) from 48 herds examined. A multivariable logistic regression model identified the following as significant risk factors: a history of abortion (AOR = 23; 95% CI: 2.354-188.702; P = 0.006), dystocia (AOR = 11; 95% CI = 22.275-55.860; P = 0.003), wells water sources (AOR = 9; 95% CI: 1.599-47.568; P = 0.012), and dogs fed with raw animal products (AOR = 6; 95% CI: 11.213-27.222; P = 0.028).
This study revealed the first serological evidence of exposure in cattle reared under pastoral production system. Our findings suggest is likely to be an important cause of abortion and dystocia in cattle in Ethiopia. Management practices, such as provision of hygienic water and restriction of dogs fed with raw animal products, are likely to reduce the risk of infection. Thus, maximizing community awareness about these disease management practices is suggested.
新孢子虫病是埃塞俄比亚小农户奶牛场流产的主要原因。然而,其在牧区养牛生产环境中的状况和影响尚不明确。本研究旨在估计埃塞俄比亚博拉纳州特尔特尔区博拉纳牛的血清阳性率及相关潜在风险因素。
采用多阶段抽样技术,从48个随机选择的牧群中采集180份血样,进行间接酶联免疫吸附测定(ELISA)试验,以检测针对新孢子虫的特异性抗体。还通过问卷调查确定研究区域内新孢子虫的潜在风险因素。使用多变量逻辑回归模型评估相关风险因素。
在检测的180头牛中,5%的牛(95%置信区间:1.816 - 8.184)检测到针对新孢子虫暴露的抗体。同样,在检查的48个牧群中,至少有一头阳性动物的牧群中新孢子虫的血清阳性率为14.6%(95%置信区间:4.598 - 24.567)。多变量逻辑回归模型确定以下为显著风险因素:流产史(比值比 = 23;95%置信区间:2.354 - 188.702;P = 0.006)、难产(比值比 = 11;95%置信区间 = 22.275 - 55.860;P = 0.003)、井水水源(比值比 = 9;95%置信区间:1.599 - 47.568;P = 0.012)以及喂食生动物产品的狗(比值比 = 6;95%置信区间:11.213 - 27.222;P = 0.028)。
本研究揭示了牧区生产系统饲养的牛中新孢子虫暴露的首个血清学证据。我们的研究结果表明,新孢子虫病可能是埃塞俄比亚牛流产和难产的重要原因。提供卫生用水和限制喂食生动物产品的狗等管理措施可能会降低感染风险。因此,建议提高社区对这些疾病管理措施的认识。