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VetMed Resource

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

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Abstract

The epidemiology of bovine ostertagiasis in northwestern USA (Oregon, Montana, Washington State, Idaho, Wyoming, California, Nevada, Utah) is reviewed under the headings: factors influencing epizootiology (elevation, topography, moisture, rainfall, snow, geothermal water, irrigation); epidemiology...

Author(s)
Zimmerman, G. L.; Worley, D. E.; Rickard, L. G.
Citation
Veterinary Parasitology, 1993, 46, 1-4, pp 303-311
Abstract

Two field studies were conducted in the USA to determine the efficacy of a single strategically-timed dose of doramectin pour-on in the control of gastrointestinal nematodosis in beef cow-calf herds and the resultant effects on calf productivity. One study was carried out between May and October...

Author(s)
Ballweber, L. R.; Evans, R. R.; Siefker, C.; Johnson, E. G.; Rowland, W. K.; Zimmerman, G. L.; Thompson, L.; Walstrom, D. J.; Skogerboe, T. L.; Brake, A. C.; Karle, V. K.
Citation
Veterinary Parasitology, 2000, 90, 1/2, pp 93-102
Abstract

In June 2008, 122 yearling heifers with a history of anthelmintic resistance were obtained from pastures in northern California and transported to a dry lot facility in southwestern Idaho, USA. Fifty heifers with the highest fecal egg counts were selected for study enrollment. Candidates were...

Author(s)
Edmonds, M. D.; Johnson, E. G.; Edmonds, J. D.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2010, 170, 3/4, pp 224-229
Abstract

Seven studies were conducted in commercial grazing operations to confirm anthelmintic efficacy, assess acceptability, and measure the productivity response of cattle to treatment with eprinomectin in an extended-release injectable formulation (ERI) when exposed to nematode infected pastures for 120 ...

Author(s)
Kunkle, B. N.; Williams, J. C.; Johnson, E. G.; Stromberg, B. E.; Yazwinski, T. A.; Smith, L. L.; Yoon, S.; Cramer, L. G.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2013, 192, 4, pp 332-337

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