Living reference work entry
Ostertagiosis is probably the most important parasite in grazing sheep and cattle in temperate climatic zones throughout the world. It causes subclinical losses of production and disease. The clinical disease is characterized by diarrhea, weight loss, decreased production, rough hair coats, partial anorexia, mild anemia, hypoalbuminemia, dehydration, and in some cases, death. Ostertagia ostertagi in cattle and O. ( Teledorsagia) circumcincta in sheep and goats are the most important species. Related species and genera are O. leptospicularis, Skrjabinagia lyrata in cattle and O. trifurcata, Teladorsagia davtiani, and Marshallagia marshalli in sheep and goats (Fig. 1).
KeywordsParietal Cell Gastrin Level Gastric Gland Temperate Climatic Zone Hair Coat
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© Springer-Verlag Berlin Heidelberg 2016