Anatomical location and sex ratio of gastrointestinal trichostrongylids in sheep in the Region of
Abstract
A total of 181 adult sheep from a slaughterhouse in Cartagena (Murcia) were studied between 1998 and 2001. The content from the abomasum and small intestine was collected and processed in order to quantify and hasidentify trichostrongylids. One hundred and fi fty eight sheep were parasited with 156.889 nematodes: 103.076 were recovered from the abomasum and 53.813 from the small intestine. In both locations the number of females was higher than males, being sex ratio 1,57 in the abomasum and 1,98 in the small intestine. Thirteen species were identifi ed: Teladorsagia circumcincta, T. trifurcata, Marshallagia marshalli, Trichostrongylus vitrinus, T. colubriformis, T. axei, Nematodirus spathiger and N. fi licollis in both abomasums and small intestine; T. davtiani, M. occidentalis and H. contortus only in abomasum and T. capricola and N. abnormalis just in the small intestine.Downloads
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