Haemonchus contortus, a stomach worm that infects goats and sheep can cause fatal anemia. Understanding the life cycle of this parasite is one way to help control this common parasite. Additional animations describing life cycles of parasites that infect the goat. Cryptosporidium Eimeria spp. (coccidian) Dictyocaulus vivparus (lungworm) Muellerius capillaris (goat lung worm) Fasciola hepatica (liver fluke) Haemonchus contortus (barber pole worm) Ostertagia circumcincta (brown stomach worm) Trichostrongylus spp. (hair worm) Nematodirus spp (thin-necked intestinal worm) Oesophagostomum columbianum (nodular worm) Strongyloides papillosus (common thread worm) Parelaphostrongylus tenuis (brain or meningeal worm) Trichuris ovis (whipworm) Moniezia expansa (tapeworm) Return to Goat Biology Animations Return to Goat Biology Home