Giardia duodenalis in Hu sheep: occurrence and environmental contamination on large-scale housing farms.

IF 2.3 2区 医学 Q2 PARASITOLOGY
Parasite Pub Date : 2023-01-01 DOI:10.1051/parasite/2023004
Qianming Zhao, Chenyang Lu, Zhiyang Pei, Pihong Gong, Junqiang Li, Fuchun Jian, Bo Jing, Meng Qi, Changshen Ning
{"title":"Giardia duodenalis in Hu sheep: occurrence and environmental contamination on large-scale housing farms.","authors":"Qianming Zhao,&nbsp;Chenyang Lu,&nbsp;Zhiyang Pei,&nbsp;Pihong Gong,&nbsp;Junqiang Li,&nbsp;Fuchun Jian,&nbsp;Bo Jing,&nbsp;Meng Qi,&nbsp;Changshen Ning","doi":"10.1051/parasite/2023004","DOIUrl":null,"url":null,"abstract":"<p><p>Giardia duodenalis is a common zoonotic intestinal parasitic protozoan and sheep are among its hosts; however, limited information is available on sheep kept in large-scale housing. The Hu sheep is a first-class protected local livestock breed in China. In this study, we investigated the seasonal dynamics of G. duodenalis infection in Hu sheep and the environmental contamination of large-scale sheep farms. We collected 474 fecal samples and 312 environmental samples from Hu sheep on a large-scale sheep farm in Henan, China. The prevalence of G. duodenalis was determined by nested PCR targeting the β‑giardin (bg) gene. The assemblages and multilocus genotypes (MLGs) were investigated based on analyses of three genetic loci, i.e. bg, glutamate dehydrogenase (gdh), and triosephosphate isomerase (tpi). To detect mixed infections of different assemblages, assemblage A/E-specific PCRs were performed to amplify the tpi gene. The prevalence of G. duodenalis infection in sheep was 17.9% (81/474) and the positivity rate in environmental samples was 0.96% (3/312). Genetic analysis revealed the presence of two assemblages (assemblages A and E), with assemblage E being detected in both fecal and environmental samples, and assemblage A detected only in fecal samples. A total of 23 MLGs were obtained in fecal and environmental samples, all of which belonged to assemblage E. These results indicate the seasonal dynamics of G. duodenalis infection in sheep and environmental contamination on large-scale housing sheep farms and provide an important reference for the prevention and control of G. duodenalis on large-scale housing sheep farms.</p>","PeriodicalId":19796,"journal":{"name":"Parasite","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9886085/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Parasite","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1051/parasite/2023004","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PARASITOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

Giardia duodenalis is a common zoonotic intestinal parasitic protozoan and sheep are among its hosts; however, limited information is available on sheep kept in large-scale housing. The Hu sheep is a first-class protected local livestock breed in China. In this study, we investigated the seasonal dynamics of G. duodenalis infection in Hu sheep and the environmental contamination of large-scale sheep farms. We collected 474 fecal samples and 312 environmental samples from Hu sheep on a large-scale sheep farm in Henan, China. The prevalence of G. duodenalis was determined by nested PCR targeting the β‑giardin (bg) gene. The assemblages and multilocus genotypes (MLGs) were investigated based on analyses of three genetic loci, i.e. bg, glutamate dehydrogenase (gdh), and triosephosphate isomerase (tpi). To detect mixed infections of different assemblages, assemblage A/E-specific PCRs were performed to amplify the tpi gene. The prevalence of G. duodenalis infection in sheep was 17.9% (81/474) and the positivity rate in environmental samples was 0.96% (3/312). Genetic analysis revealed the presence of two assemblages (assemblages A and E), with assemblage E being detected in both fecal and environmental samples, and assemblage A detected only in fecal samples. A total of 23 MLGs were obtained in fecal and environmental samples, all of which belonged to assemblage E. These results indicate the seasonal dynamics of G. duodenalis infection in sheep and environmental contamination on large-scale housing sheep farms and provide an important reference for the prevention and control of G. duodenalis on large-scale housing sheep farms.

Abstract Image

Abstract Image

胡羊十二指肠贾第虫:大规模户养养殖场的发生及环境污染。
十二指肠贾第虫是一种常见的人畜共患肠道寄生原生动物,绵羊是其宿主之一;然而,关于大规模圈养羊的信息有限。胡羊是中国地方一级保护家畜品种。本研究调查了湖羊十二指肠梭菌感染的季节动态及大型绵羊养殖场的环境污染情况。在河南省某大型绵羊养殖场采集湖羊粪便样本474份,环境样本312份。采用巢式PCR检测β -栀子苷(β - giardin, bg)基因。通过对bg、谷氨酸脱氢酶(gdh)和三磷酸异构酶(tpi) 3个基因座的分析,对其组合和多位点基因型进行了研究。为了检测不同组合的混合感染,采用组合A/ e特异性pcr扩增tpi基因。绵羊十二指肠梭菌感染率为17.9%(81/474),环境标本阳性率为0.96%(3/312)。遗传分析显示存在两个组合(组合A和E),其中组合E在粪便和环境样本中均可检测到,而组合A仅在粪便样本中检测到。在粪便和环境样品中共检出23个mlg,均属于组合e。这些结果揭示了大型圈养羊场绵羊十二指肠螺旋体感染和环境污染的季节动态,为大型圈养羊场十二指肠螺旋体的防治提供了重要参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Parasite
Parasite 医学-寄生虫学
CiteScore
5.50
自引率
6.90%
发文量
49
审稿时长
3 months
期刊介绍: Parasite is an international open-access, peer-reviewed, online journal publishing high quality papers on all aspects of human and animal parasitology. Reviews, articles and short notes may be submitted. Fields include, but are not limited to: general, medical and veterinary parasitology; morphology, including ultrastructure; parasite systematics, including entomology, acarology, helminthology and protistology, and molecular analyses; molecular biology and biochemistry; immunology of parasitic diseases; host-parasite relationships; ecology and life history of parasites; epidemiology; therapeutics; new diagnostic tools. All papers in Parasite are published in English. Manuscripts should have a broad interest and must not have been published or submitted elsewhere. No limit is imposed on the length of manuscripts, but they should be concisely written. Papers of limited interest such as case reports, epidemiological studies in punctual areas, isolated new geographical records, and systematic descriptions of single species will generally not be accepted, but might be considered if the authors succeed in demonstrating their interest.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信