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Medical Definition of Nematodirus
1. The genus of thread-necked or thin-necked trichostrongyles; slender, relatively elongated nematodes occurring in herbivorous animals, usually in the small intestine. Generally, they are not believed to be highly pathogenic except in poorly fed, heavily infected animals. Species include: Nematodirus abnormalis, common in the U.S. And occurring in sheep, goats, camels, and mule deer. Nematodirus filicollis, occurring worldwide in sheep, goats, oxen, and various wild ruminants. Nematodirus helvetianus, in cattle, sheep, goats, and camels in Europe, Asia, and the Americas. Nematodirus lanceolatus, in sheep and pronghorns in the Americas. Nematodirus leporis, in domestic rabbits and wild cottontail rabbits in North America. Nematodirus spathiger, the most common, widespread, and abundant species, in sheep, cattle, camels, and other ruminants. (05 Mar 2000)
Lexicographical Neighbors of Nematodirus
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