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首页> 外文期刊>Tropical Animal Health and Production >Gastrointestinal nematode infections in small ruminants under the traditional husbandry system during the dry season in southern Ethiopia
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Gastrointestinal nematode infections in small ruminants under the traditional husbandry system during the dry season in southern Ethiopia

机译：埃塞俄比亚南部旱季传统饲养系统下小反刍动物的胃肠道线虫感染

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摘要

A cross-sectional study was conducted from November 2008 to February 2009 to investigate the prevalence and intensity of infection and risk factors of gastrointestinal (GI) nematodes in small ruminants kept under the traditional husbandry system in two districts in southern Ethiopia. Faecal samples collected from a total of 510 small ruminants (284 sheep and 226 goats) and analysed by a modified McMaster technique revealed that 222 animals (43.5%) were found to be infected with one or more GI nematodes. Five identical genera of nematodes were found in both sheep and goats, which in order of predominance were Haemonchus (56.3%), Trichostrongylus (39.6%), Oesophagostomum (22.9%), Trichuris (21.6%) and Bunostomum (10.4%). No significant (p>0.05) differences were observed between sheep and goats proportions except for Trichuris (p<0.05). In both sheep and goats, most of the animals were heavily infected showing faecal egg counts (FECs) above 1,200 epg. Sheep had a significantly (p<0.05) higher mean FEC than goats. In sheep and goats, both the prevalence of GI nematodes and mean FEC were significantly (p<0.001) associated with body condition score and faecal consistency but not with district, sex and age (p>0.05 for each factor). In conclusion, the observation of a strong association of GI nematodes with poor body condition coupled with heavy intensity of infection in the majority of infected animals and an abundance of nematode genera of widespread economic and pathological significance warrants the institution of appropriate control measures that should necessarily include improvement of the nutritional status of the animals.
机译：2008年11月至2009年2月进行了横断面研究，调查了埃塞俄比亚南部两个地区传统饲养体系下饲养的小型反刍动物的感染线虫的流行程度，强度以及胃肠道线虫的危险因素。从总共510只小反刍动物（284只绵羊和226只山羊）中收集的粪便样本，并通过改进的McMaster技术进行分析，发现发现有222只动物（43.5％）感染了一种或多种胃肠道线虫。在绵羊和山羊中都发现了五个相同的线虫属，按优先顺序排列的依次为：Haemonchus（56.3％），Trichostrongylus（39.6％），Oesophagostomum（22.9％），Trichuris（21.6％）和Bunostomum（10.4％）。除Trichuris（p <0.05）外，在绵羊和山羊的比例之间没有观察到显着差异（p> 0.05）。在绵羊和山羊中，大多数动物都受到严重感染，显示粪便卵数（FEC）超过1200 epg。绵羊的平均FEC显着高于山羊（p <0.05）。在绵羊和山羊中，胃肠道线虫的患病率和平均FEC均与身体状况评分和粪便稠度显着相关（p <0.001），而与地区，性别和年龄无关（每个因素p> 0.05）。总之，在大多数被感染的动物中，胃肠道线虫与身体状况差，感染强度高以及大量线虫属具有广泛的经济和病理意义密切相关，因此有必要采取适当的控制措施包括改善动物的营养状况。

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