Wuthijaree K, Tatsapong P, Lambertz C
Faculty of Agriculture, Natural Resources and Environment. Naresuan University, Phitsanulok 65000, Thailand.
Research Institute of Organic Agriculture (FiBL), Kasseler Strasse 1a, 60486 Frankfurt am Main, Germany.
Helminthologia. 2022 May 4;59(1):64-73. doi: 10.2478/helm-2022-0007. eCollection 2022 Mar.
The present study determined the prevalence of gastrointestinal (GI) parasites in small ruminants kept in smallholder farms in Phitsanulok, Northern Thailand. A total of 885 goats from 31 smallholder farms were selected randomly between May 2019 to January 2020. Fecal samples were collected to estimate fecal egg counts and oocysts counts using the modified McMaster technique. Furthermore, pooled fecal samples from each of the farms were cultured in order to differentiate third-stage larvae of nematode. Examination of fecal samples revealed that 885 were positive for one or more parasites, giving an overall prevalence of 87.2 %, of which 38.6 % were infected with one and 48.6 % with multiple parasite. and oocysts were the most prevalent. and were the predominant species based on the percentage of larvae in fecal cultures. Tapeworm eggs were encountered in 14.2 % of all samples. No significant difference in gastrointestinal parasite prevalence was associated with sex of the host. Infection was significantly (P = 0.009) highest in poor body conditioned goats (72.0 %) as compared to moderate (48.9 %) and good body conditioned (50.0 %) goats. This report on prevalence of GI parasites of small ruminants in smallholder farms in Northern Thailand reveals a high endoparasitic infections that appeared well-adapted to environmental conditions. Further studies on endoparasite control are required to establish the impact of parasitism on productive performance, including monitoring control parasite programs are needed for better health and productivity.
本研究确定了泰国北部彭世洛府小农户饲养的小反刍动物胃肠道寄生虫的流行情况。2019年5月至2020年1月期间，从31个小农户的农场中随机挑选了885只山羊。采集粪便样本，采用改良麦克马斯特技术估计粪便虫卵计数和卵囊计数。此外，对每个农场的混合粪便样本进行培养，以区分线虫的第三期幼虫。粪便样本检查显示，885只山羊感染了一种或多种寄生虫，总体感染率为87.2%，其中38.6%感染一种寄生虫，48.6%感染多种寄生虫。球虫和隐孢子虫卵囊最为常见。根据粪便培养中幼虫的百分比，捻转血矛线虫和奥斯特线虫是主要种类。在所有样本中，14.2%发现了绦虫卵。胃肠道寄生虫的流行率与宿主性别无显著差异。与体况中等（48.9%）和良好（50.0%）的山羊相比，体况较差的山羊感染率显著最高（72.0%，P = 0.009）。这份关于泰国北部小农户农场小反刍动物胃肠道寄生虫流行情况的报告显示，内寄生虫感染率很高，且这些寄生虫似乎很好地适应了环境条件。需要进一步研究内寄生虫的控制方法，以确定寄生虫对生产性能的影响，包括监测控制寄生虫项目，以实现更好的健康状况和生产力。
