Prevalence and associated risk factors of major sheep gastro intestinal parasites in and around Bako Town, Western Ethiopia

摘要

AcrosssectionalstudyongastrointestinalparasitesofsheepwasconductedfromNovember2013toMay2014inandaroundBakotownwiththeobjectivestoidentifythemajorGITparasites,theirprevalenceandassociatedriskfactors.Atotalof424fecalsampleswerecollectedforqualitativefecalexamination.ThosesamplesthatwerepositivetoStrongyleeggweresubjectedtoquantitativefecalexamination.Thestudyfoundthat77.4%ofthesheepwerefoundtoharboreggsofGITparasites.Allanimalsirrespectiveofageandsexgroupwereaffectedwiththeparasites.Fromexaminedanimals,65.3%wereinfectedwithStrongylespecies,6.1%withStrongyloidesspecies,7.3%withTrichurisspecies,30.9%withEmeriaspecies,7.3%withMoneziaspecies,9%withFasciolaspeciesand3.1%withParamphistomumspecies.TherewasnodifferenceinprevalenceofGITparasitesbetweensexesandagegroups.PrevalenceofGITparasites,indicatingsheddingofparasiteeggsoroocysts,washigherinsheepwithpoorbodyconditioncomparedwiththosewithmoderateandgoodbodycondition.CountsofStrongyleeggsrevealedthat29.6,54.1and16.6%ofthesheepwerefoundtobelightly,moderatelyandmassivelyinfested,respectively.ThestudyshowedthatGITparasitesaremajorproblemsofsheepinthestudyarea.Thus,furtherstudiesoneconomiclossesandepidemiologyofGITparasitesofsheep,costeffectivestrategictreatmentandawarenesscreationtothefarmers,shouldbeinstitutedinthestudyarea.