STOMACH PARASITES OF DONKEYS IN MOROCCO - HABITAT AND INTERSPECIFIC INTERACTIONS

One hundred and four donkeys originating from several regions of Moroc co were necropsied during 1 year. The parasites in their stomachs were counted and locations determined in the cardiac, fundic and pyloric p ortions. Synergistic or antagonistic interactions between parasites we re assessed by a principal component analysis. Gasterophilus intestina lis was only found in the cardiac portion and G. nasalis was mostly fo und in the pyloric portion. Habronema were principally encountered in the pyloric portion, whereas Trichostrongylus axei was found in the fu ndic portion. The parasites were synergistically associated in their h abitat interaction, except for T. axei on the fundic portion which was antagonistic to other parasites.