厄瓜多尔南部高地奶牛中的牛新孢子虫病。

Bovine neosporosis in dairy cattle from the southern highlands of Ecuador.

机构信息

Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620 Balcarce, Argentina; Facultad de Ciencias Agropecuarias, Universidad de Cuenca, Avenida 12 de Octubre y Don Bosco, Cuenca, Ecuador.

Facultad de Ciencias Agropecuarias, Universidad de Cuenca, Avenida 12 de Octubre y Don Bosco, Cuenca, Ecuador.

出版信息

Vet Parasitol Reg Stud Reports. 2020 Apr;20:100377. doi: 10.1016/j.vprsr.2020.100377. Epub 2020 Jan 25.

DOI:10.1016/j.vprsr.2020.100377

PMID:32448544

Abstract

The aim of this study was to describe bovine neosporosis in dairy cattle from the Sierra region, Ecuador. A case-control study was performed on 841 dairy cattle from 5 dairy herds. The overall seroprevalence was 23.4% having significant association between abortion and seropositivity (p < .05). Additionally, 46 fetuses were recovered from a local slaughterhouse to evaluate the frequency of vertical transmission. Seventeen and 3 fetuses were positive by PCR and had compatible histopathological lesions, respectively. N. caninum infection must be considered as a relevant cause of reproductive losses in Ecuador.

摘要

本研究旨在描述厄瓜多尔塞拉地区奶牛的牛新孢子虫病。对来自 5 个奶牛场的 841 头奶牛进行了病例对照研究。总血清阳性率为 23.4%，流产与血清阳性之间存在显著相关性（p<0.05）。此外，从当地屠宰场回收了 46 头胎牛，以评估垂直传播的频率。17 头和 3 头胎牛的 PCR 检测均为阳性，且均具有相符的组织病理学病变。牛新孢子虫感染必须被视为厄瓜多尔生殖损失的一个重要原因。