中非加蓬南部蒙戈县绵羊和山羊体内锥虫的频率和多样性
Frequency and diversity of trypanosomes in sheep and goats from Mongo County in South Gabon, Central Africa.
作者信息
Maganga Gael Darren, Boundenga Larson, Ologui-Minkue-Edzo Emmanuella Jacqueline, Kombila Linda Bohou, Mebaley Telstar Ghestin Ndong, Kumulungui Brice, Mavoungou Jacques François
机构信息
Centre International de Recherches Médicales de Franceville, BP 769, Franceville, Gabon.
Département de Zootechnologie, Institut National Supérieur d'Agronomie et de Biotechnologies, BP 901, Franceville, Gabon.
出版信息
Vet World. 2020 Nov;13(11):2502-2507. doi: 10.14202/vetworld.2020.2502-2507. Epub 2020 Nov 24.
BACKGROUND AND AIM
Trypanosomosis is a major impediment to livestock farming in sub-Saharan Africa. It is a vector-borne disease caused by several species of protozoan parasites, namely, trypanosomes. The present study aimed to identify the diversity of trypanosome species infecting sheep and goats from Mongo County and to determine the frequency of these parasites.
MATERIALS AND METHODS
This study was conducted on 286 trypanotolerant goats and sheep from Mongo regions located in South Gabon, using polymerase chain reaction.
RESULTS
Analyses showed that the overall occurrence of trypanosomosis in small ruminants was 13.6% (39/286). Our results also showed that two factors, species and season, could affect the occurrence rate of . A total of six species were identified, two in sheep ( and ) and five in goats (, , , , and ), though was the most important species. Mixed infections were also found in goats (54.5%) and sheep (3.57%).
CONCLUSION
Our study demonstrated that small ruminants could represent a reservoir of biodiversity for parasites.
背景与目的
锥虫病是撒哈拉以南非洲地区畜牧业的主要障碍。它是一种由几种原生动物寄生虫，即锥虫引起的媒介传播疾病。本研究旨在确定感染加蓬南部蒙戈县绵羊和山羊的锥虫种类的多样性，并确定这些寄生虫的感染率。
材料与方法
本研究使用聚合酶链反应，对来自加蓬南部蒙戈地区的286只耐锥虫山羊和绵羊进行了研究。
结果
分析表明，小型反刍动物中锥虫病的总体发生率为13.6%（39/286）。我们的结果还表明，物种和季节这两个因素会影响锥虫病的发生率。共鉴定出6种锥虫，其中2种存在于绵羊中（[具体名称1]和[具体名称2]），5种存在于山羊中（[具体名称3]、[具体名称4]、[具体名称5]、[具体名称6]和[具体名称7]），不过[具体名称7]是最重要的物种。在山羊（54.5%）和绵羊（3.57%）中也发现了混合感染。
结论
我们的研究表明，小型反刍动物可能是锥虫寄生虫生物多样性的储存宿主。
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