Abstract
Summary A study was conducted in three selected highland districts of western Oromia, Ethiopia, during the year 2002 –2003 to assess constraints of equine production with emphasis on gastrointestinal parasites. Coprological study (n=388) indicated that overall prevalence of small and large strongyles was (92.8%), Parascaris equorum (17.1%), Dictyocaulus arnifildi (2.6%) and Oxyuris equi (2.1%). Likewise, quantitative coprological study (egg count per gram of feces) (EPG) indicated moderate infection in 29.4%, 49.4% and 38.6%; and severe infection in 37.3%, 28.9% and 31.8% in donkeys, horses and mules, respectively. There was no significant (p>0.05) difference in prevalence rate and EPG across study districts, equine species, and sex of the animals. There was significant difference in prevalence rate and EPG count in different seasons of the year, body condition and age of equines. Therefore, strategic and tactical approaches of parasitic control and further epidemiological investigation of equine diseases are recommended. Key words : GIT parasite, EPG, equine, western highland, Oromia, Ethiopia Prevalence Des Parasites Gastro-Intestinaux Des Equides Dans Les Hauts Plateaux De L\'ouest De L\'oromie En Ethiopie Resume Une etude a ete conduite dans trois districts choisis des hauts plateaux de l\'ouest de l\'Oromie en Ethiopie pendant la periode 2002-2003, afin d\'evaluer les obstacles a la production equine avec un accent particulier sur les parasites gastro-intestinaux. L\'etude coprologique (n=388) a revele que la prevalence globale des petits et gros strongyles etait de 92,8%, Parascaris equorum (17,1%), Dictyocaulus arnifildi (2,6%) et Oxyuris equi (2,1%). De meme, l\'etude coprologique quantitative (nombre d\'oeufs de strongyle par gramme de feces (EPG) a montre une faible infection chez 29,4% ; 49,4% et 38,6%, et chez 37,3% ; 28,9% et 31,8% des ânes, des chevaux et des mulets, respectivement. Il n\'y avait pas de difference significative (p>0,05) quant au taux de prevalence et a l\'EPG entre les districts faisant l\'objet d\'etude, les especes equines et le sexe des animaux ; alors qu\'il y avait une nette difference relative: au taux de prevalence et a l\'EPG entre les differentes saisons de l\'annee, a l\'etat corporel des animaux et a l\'âge des equides. Il est donc recommande d\'adopter des approches strategiques et tactiques de lutte contre les parasites et de mener, par ailleurs, une enquete epidemiologique sur les maladies equines. Mots-cles : Parasite gastro-intestinal, EPG, equin, hauts plateaux de l\'ouest, Oromie, Ethiopie Bull Anim. Hlth. Prod. Afr. Vol. 53 (3) 2005: 161-166
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