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Abstract

Effects of the cytochrome P450 inhibitor piperonyl butoxide and the P-glycoprotein inhibitor verapamil on the efficacy of ivermectin and thiabendazole were studied in vitro in susceptible and resistant isolates of the cattle parasitic nematodes Cooperia oncophora and Ostertagia ostertagi. The...

Author(s)
AlGusbi, S.; Krücken, J.; Ramünke, S.; Samson-Himmelstjerna, G. von; Demeler, J.
Publisher
Elsevier Ltd, Oxford, UK
Citation
International Journal for Parasitology, 2014, 44, 9, pp 647-658
Abstract

Eprinomectin has been approved for use as a topically applied endectocide for beef and dairy cattle. To determine if eprinomectin has utility as an injectable anthelmintic, it was titrated at 0.05, 0.1, and 0.2 mg/kg s.c. against adult (Trial 1) and at 0.05, 0.1, 0.14, and 0.2 mg/kg s.c. against...

Author(s)
Shoop, W.; Michael, B.; Egerton, J.; Mrozik, H.; Fisher, M.
Publisher
American Society of Parasitologists, Lawrence, USA
Citation
Journal of Parasitology, 2001, 87, 6, pp 1466-1469
Abstract

A series of experiments was carried out to examine the effects of 2 different isolates of Duddingtonia flagrans to reduce the number of free-living larvae of Dictyocaulus viviparus. A laboratory dose-titration assay showed that isolates CI3 and Troll A of Duddingtonia flagrans significantly reduced ...

Author(s)
Fernández, A. S.; Larsen, M.; Nansen, P.; Grønvold, J.; Henriksen, S. A.; Bjørn, H.; Wolstrup, J.
Citation
Veterinary Parasitology, 1999, 85, 4, pp 289-304
Abstract

Two group of calves, 36 Holstein cross-bred bull and 36 heifer calves (aged 6-8 months) were each divided into 6 groups of 6, in Belgium [date not given]. In both main groups, calves in the first control group (C1) and first treated group (T1) received a daily infection of 200 L3 of O. ostertagi...

Author(s)
Vercruysse, J.; Claerebout, E.; Dorny, P.; Demeulenaere, D.; Agneessens, J.; Smets, K.
Citation
Veterinary Record, 1998, 143, 16, pp 443-446
Abstract

SDS-PAGE profiles of somatic proteins from 3rd-stage infective larvae of O. ostertagi and C. oncophora were evaluated using laser densitometry. Several protein bands were present from both parasite preparations. A few bands from each parasite appeared to be unique. It is suggested that purification ...

Author(s)
Baker, D. G.; Gershwin, L. J.
Citation
Veterinary Parasitology, 1993, 50, 1/2, pp 157-160
Abstract

The most common gastrointestinal nematodes found in cattle in the midwestern states of the USA (Minnesota, North Dakota, South Dakota, Missouri, Kansas, Wisconsin) are O. ostertagia and Cooperia oncophora. Other parasites included Haemonchus placei, Bunostomum phlebotomum and Nematodirus...

Author(s)
Stromberg, B. E.; Corwin, R. M.
Citation
Veterinary Parasitology, 1993, 46, 1-4, pp 297-302
Abstract

The antigenic differences among the life cycle stages of C. oncophora were studied by SDS-gel electrophoresis and Western blotting. Sodium dodecylsulphate polyacrylamide gel electrophoresis of the different life cycle stage of C. oncophora revealed a complex protein pattern with a decreasing number ...

Author(s)
Graaf, D. C. de; Hilderson, H.; Berghen, P.; Vercruysse, J.
Citation
Research in Veterinary Science, 1992, 53, 3, pp 390-392
Abstract

The influence of weather and egg contamination on the dynamics of herbage contamination with infective larvae of C. oncophora was investigated on artificially contaminated grass plots and in a grazing experiment with 24 first-year grazing calves from May to October 1987 in Lower Saxony, Germany. On ...

Author(s)
Hertzberg, H.; Schnieder, T.; Löpmeier, F. J.; Stoye, M.
Citation
International Journal for Parasitology, 1992, 22, 6, pp 719-730
Abstract

The effect of climatic conditions on development and migration onto herbage of L3 of bovine trichostrongyles were studied in the laboratory and in the field at Braunschweig, German Federal Republic. Precipitation and a film of water on the herbage were the most important factors for successful...

Author(s)
Storm, B.
Publisher
Tierarztliche Hochschule, Hannover, German Federal Republic
Citation
Untersuchungen zur Wetterabhängigkeit der Ausbreitung von Cooperia oncophora-Larven aus Kotfladen auf die Vegetation., 1986, pp 15pp.
Abstract

Soil temperature, soil moisture and air supply to the faeces influence the development of free-living larvae of Ostertagia ostertagi and Cooperia oncophora. The horizontal migration of third stage larvae is related to rainfall, soil temperature and exposure of pastures. In 1964/65 O. ostertagi...

Author(s)
Kutzer, E.
Citation
Wiener Tierarztliche Monatsschrift, 1967, 54, pp 315-332

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