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Veterinary information to support practice, based on evidence and continuing education

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Abstract

Using a new sensitive egg count test, FLOTAC, it has been shown that macrocyclic lactones (MLs) had reduced efficacy against gastrointestinal nematodes including Cooperia species and Ostertagia ostertagi on the majority of cattle farms investigated. Product failure was also found to levamisole...

Author(s)
Coles, G. C.; Stafford, K. A.; Morgan, E. R.
Publisher
British Cattle Veterinary Association, Frampton-on-Severn, UK
Citation
Cattle Practice, 2010, 18, 3, pp 139-141
Abstract

Gastrointestinal Nematodes are widespread nematodes of cattle in the temperate climate zone and worldwide. The most common species are Cooperia oncophora and Ostertagia ostertagi, which live in the abomasum and small intestine of generally all grazing cattle. The increase of anthelmintic resistance ...

Author(s)
Fahrenkrog, J.
Publisher
Freie Universität Berlin, Berlin, Germany
Citation
Optimierung der Parasitenbekämpfung bei Weidehaltung von Rindern, 2013, pp xi + 121 pp.
Abstract

Dictyocaulus viviparus, Ostertagia ostertagi (nematode parasites), and Fasciola hepatica (trematode parasite) result in productivity losses on dairy farms and impact on animal health through clinical and sub-clinical disease. Parasite control in livestock systems is largely based on the use of...

Author(s)
Bloemhoff, Y.; Danaher, M.; Forbes, A.; Morgan, E.; Mulcahy, G.; Power, C.; Sayers, R.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2014, 204, 3/4, pp 352-363
Abstract

Author(s)
Lochhaas, H. E.
Publisher
Fachbereich Veterinärmedizin, Freie Universität, Berlin, Germany
Citation
Untersuchungen zur Wirksamkeit des Panacur® SR-Bolus und des Ivomec® SR-Bolus gegenüber gastrointestinalen Nematoden (Ostertagia ostertagi, Cooperia oncophora) und dem Lungenwurm Dictyocaulus viviparus bei erstsömmerigen Rinder auf der Weide unter besonderer Berücksichtigung der Immunitätsentwicklung bei der Lungenwurminfektion., 1998, pp 226 pp.
Abstract

Two studies were conducted, one in Quebec, Canada and one in Idaho, USA, to determine the persistent efficacy of doramectin pour-on against an artificial, trickle challenge of mixed nematodes in calves. In each study 42 Holstein calves, 4-8 months old and kept indoors, were randomly assigned to 4...

Author(s)
Molento, M. B.; Trudeau, C.; Prichard, R. K.; Zimmerman, G. L.; Johnson, E. G.; Marley, S.; Conder, G. A.
Citation
Veterinary Parasitology, 1999, 82, 4, pp 297-303
Abstract

The phenomenon of hypobiosis of nematodes is described and its role in pathology and epidemiology of nematode infections in cattle is reviewed. The phenomenon has been demonstrated for Ostertagia ostertagi as well as for Dictyocaulus viviparus and can be artificially induced when L3 larvae are...

Author(s)
Schilliger, D.; Barth, D.
Citation
Tierärztliche Umschau, 1993, 48, 9, pp 592-596
Abstract

An experiment was conducted to evaluate the current efficacy of albendazole (ABZ), oxfendazole (OXF) and fenbendazole (FBZ) compared with ivermectin pour-on (IVM-PO) against inhibited early 4th-stage larvae (IEL4) of Ostertagia ostertagi, other gastrointestinal nematodes and lungworm of cattle...

Author(s)
Williams, J. C.; DeRosa, A.; Nakamura, Y.; Loyacano, A. F.
Citation
Veterinary Parasitology, 1997, 73, 1/2, pp 73-82
Abstract

A 2-year study was conducted in 3 sequential phases. initially, 4 matched groups of 9 calves grazing similar pastures were subjected to different chemoprophylactic control programmes while a fifth group acted as unprotected controls. The treatments included oxfendazole intraruminal device at...

Author(s)
Fisher, M. A.; Jacobs, D. E.
Citation
Veterinary Record, 1995, 137, 23, pp 581-585
Abstract

In separate experiments, the immune status of six matched pairs of yearling heifers from a field in which both parasitic gastroenteritis and husk had occurred in control animals, was tested with a single massive challenge of either Dictyocaulus viviparus or Ostertagia ostertagi. The clinical...

Author(s)
Jacobs, D. E.; Pitt, S. R.; Foster, J.; Fox, M. T.
Citation
Research in Veterinary Science, 1987, 43, 2, pp 273-275
Abstract

During the spring of 1985, 40 calves grazed pastures known to have high numbers of spring inhibition-prone, infective O. ostertagi larvae. Calves were removed from pasture and placed in outdoor pens with concrete floors from 10 days prior to treatment until necropsy 14 days after treatment. 10...

Author(s)
Miller, J. E.; Hembry, F. G.; Kearney, M. T.
Citation
American Journal of Veterinary Research, 1988, 49, 7, pp 1007-1009

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