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首页> 外文期刊>Veterinary Parasitology >Associated risk factors influencing ovine Eimeria infections in southern Spain
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Associated risk factors influencing ovine Eimeria infections in southern Spain

机译：影响西班牙南部绵羊Eimeria感染的相关危险因素

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摘要

Eimeria infections are common in sheep industry worldwide nonetheless very little is known on infection dynamics and associated risk factors influencing the outcome of clinical ovine coccidiosis. The aim of the present work was to analyse intrinsic (e.g. host age) and extrinsic (flock size, farm size and animal density) risk factors influencing dynamics of Eimeria spp. infections in sheep farms of the semi-arid region of Murcia in southern Spain. Overall, 64 ovine flocks in Murcia were surveyed and a total of 396 faecal samples were collected between May and July 2015. Flotation and McMaster techniques were performed for parasitological investigation. Excreted oocysts were identified on the basis of morphological as well as morphometric characteristics. In all analysed samples Eimeria spp. oocysts (100%) were found and 11 different Eimeria species were identified. Most prevalent species was E. ovinoidalis (97%) followed by E. parva/E.pallida (97%), E. weybridgensis (90.9%) and E. crandallis (89.4%), respectively. Concomitant infections with more than one Eimeria species were observed in all analysed samples. Analysis of intrinsic/extrinsic risk factor revealed age, herd/farm size and animal density to be the main factors significantly influencing Eimeria oocysts per gram of faeces counts (OPG) and overall prevalence of Eimeria spp. infections in sheep.
机译：无论如何在全世界绵羊行业中常见的eimeria感染很少是在感染动态和相关的危险因素中熟知，影响临床绵羊球虫病的结果。本作本作的目的是分析内在（例如宿主年龄）和外在（植绒大小，农场大小和动物密度）风险因素，影响eimeria SPP动态。南西班牙穆尔西亚半干旱地区绵羊农场感染。总体而言，调查了穆尔西亚的64个绵羊群，在2015年5月至7月之间共收集了396个粪便样本。浮选和麦克米斯特技术进行了寄生学调查。基于形态学以及形态学特征来鉴定出卵体的卵囊。在所有分析的样品中艾米氏菌SPP。发现卵囊（100％），并鉴定出11种不同的eimeria物种。大多数普遍存存的物种是E. ovinoidalis（97％），然后是E. parva / E.Pallida（97％），E. Weybridgensis（90.9％）和E. CrandAllis（89.4％）。在所有分析的样品中观察到伴随着一种以上的eimeria物种的感染。内在/外在危险因素的分析显示年龄，牧群/农场大小和动物密度，是影响每克粪便计数（OPG）的eimeria卵囊的主要因素和eimeria spp的总体患病率。绵羊感染。

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