von Ostertag,

Robert, German veterinarian, 1864-1940.
Ostertagia - genus of stomach worms that are found primarily in cattle.
ostertagiasis - infection caused by Ostertagia. Synonym(s): ostertagiosis
Medical Eponyms © Farlex 2012
References in periodicals archive ?
Digestive strongyles are parasitic diseases caused by strongylid nematodes that include a number of parasitic species, (such as Haemonchus, Ostertagia, Trichostrongylus, Cooperia, Nematodirus, Bunostomum, Oesophagostomum, etc.) and are among the bovine parasites most commonly encountered in temperate regions.
Apparent prevalence and risk factors for infection with Ostertagia ostertagi, Fasciola hepatica and Dictyocaulus viviparus in Swiss dairy herds.
Metagenome plasticity of the bovine abomasal microbiota in immune animals in response to Ostertagia ostertagi infection.
Por ejemplo, para el caso de Ostertagia ostertagi, modelos matematicos que han valorado varios criterios de seleccion, muestran que la ganancia diaria de peso es el mejor parametro, seguido por el conteo de huevos en materia fecal y los niveles de pepsinogeno plasmaticos (3).
Speciation of the Ostertagia-types revealed that 90% were Spiculopteragia asymmetrica, 6% Spiculopteragia spiculoptera, and 4% Ostertagia leptospicularis.
Nematodes infected buffalo treated with Levamisole: Levamisole reduced (99%) mean EPG of Haemonchus and Ostertagia and (100%) reduced the EPG of Trichostrongylus, Namatodirus and Trichuris on post treatment day 28th.
The sera positive for parasitic infection (n=54) other than Fasciola mainly: Haemonchus contortus; Strongyloides spp.; Ostertagia spp.; Paramphistomum spp.; coccidian; hydatidosis and schistosomiasis were taken from clinically, serologically and parasitologically confirmed cases from veterinary centres to check the cross reactivity of the test.
Fecal examination revealed a variety of helminth parasites viz., Haemonchus contortus, Ostertagia trifurcata, Trichostrongylus spp., Strongyloides papillosus, Marshallagia marshalli, Avitellina centripunctata, Fasciola gigantica and F.
These endectocides with the active ingredient moxidectin offer persistent killing of internal parasites at multiple stages, including the most economically devastating parasite, Ostertagia ostertagi (brown stomach worm) and controls external parasites including lice, grubs and psoroptic mange mites on beef and dairy cattle.
Another study on anthelmintic effect of forage chicory against gastrointestinal nematode parasites established that feeding forage ([greater than or equal to] 70% of chicory DM) significantly reduces worm burdens and fecal egg counts of Ostertagia ostertagi in experimentally infected calves.

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