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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
Abstract

The efficacy of eprinomectin in an extended-release injection (ERI) formulation in the treatment of cattle harboring naturally acquired nematode populations (including inhibited nematodes) was evaluated. Five studies were conducted under a similar protocol in the USA, the UK, and in Germany. All...

Author(s)
Hunter, J. S., III; Yoon, S.; Yazwinski, T. A.; Williams, J. C.; Rehbein, S.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2013, 192, 4, pp 346-352
Abstract

Thirty-two male Holstein calves were used to investigate supplementation of vitamin E alone or in combination with lasalocid to control coccidiosis. Calves were inoculated with 100,000 Eimeria bovis oocysts at 2 wk of age. Vitamin E-fed calves (n=16) were given 180 IU of vitamin E once daily....

Author(s)
Goodier, G. E.; Williams, J. C.; O'Reilly, K. L.; Snider, T. G.; Stanley, C. C.; Dolejsiova, A. H.; Williams, C. C.
Publisher
American Registry of Professional Animal Scientists (ARPAS), Champaign, USA
Citation
Professional Animal Scientist, 2012, 28, 1, pp 97-107
Abstract

Sixty crossbred calves (20/treatment group) were subcutaneously treated with doramectin (Dectomax, 200 µg/kg BW) or ivermectin-clorsulon (Ivomec Plus, 200 µg ivermectin and 2 mg clorsulon per kilogram BW), or were not treated. Faecal samples were collected for nematode and Fasciola hepatica egg...

Author(s)
Loyacano, A. F.; Skogerboe, T. L.; Williams, J. C.; Rosa, A. A. de; Gurie, J. A.; Shostrom, V. K.
Publisher
American Veterinary Medical Association, Schaumburg, USA
Citation
Journal of the American Veterinary Medical Association, 2001, 218, 9, pp 1465-1468
Abstract

This is a short report of the discussions following 3 papers presented at this conference on the integrated control of nematodes of livestock.

Author(s)
Williams, J. C.
Citation
International Journal for Parasitology, 1999, 29, 1, pp 183-184
Abstract

This review covers effects of nematodes on productivity of cattle, diagnosis of infection, transmission of nematode infection to cattle, prevention and control, and strategic treatment.

Author(s)
Williams, J. C.
Publisher
American Association of Bovine Practitioners, Stillwater, USA
Citation
Proceedings of the Twenty Seventh Annual Convention American Association of Bovine Practitioners, Pittsburgh, Pennsylvania, USA, September 22-25, 1994., 1995, pp 21-31
Abstract

The first event in the establishment of Ostertagia ostertagi infection in cattle is exsheathment. Exsheathment is the process whereby the L2 cuticle retained from the previous molt is cast from the L3. For those trichostrongyle nematode species with a predilection site in the abomasum, such as O....

Author(s)
DeRosa, A. A.; Chirgwin, S. R.; Williams, J. C.; Klei, T. R.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2008, 154, 1/2, pp 58-66
Abstract

The effectiveness, safety and production-enhancing benefit (improved weight gains) of moxidectin long-acting injection given subcutaneously in the ear at the rates of 0.75, 1.0 and 1.5 mg/kg bw were evaluated in three studies under common protocol. The only adverse reaction to treatment was a mild...

Author(s)
Yazwinski, T. A.; Williams, J. C.; Smith, L. L.; Tucker, C.; Loyacano, A. F.; DeRosa, A.; Peterson, P.; Bruer, D. J.; Delay, R. L.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2006, 137, 3/4, pp 273-285
Abstract

The objective of this study was to characterize the exsheathment kinetics of Ostertagia ostertagi infective larvae (L3) following in vivo exposure to bovine rumen contents derived from low and high roughage diets. O. ostertagi L3 were placed in disposable dialysis bags and incubated for various...

Author(s)
DeRosa, A. A.; Chirgwin, S. R.; Fletcher, J.; Williams, J. C.; Klei, T. R.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2005, 129, 1/2, pp 77-81
Abstract

Recent developments in biotechnology are creating new opportunities for detecting and controlling tick-borne haemoparasitic infections of livestock through efforts directed at both the vertebrate and invertebrate hosts. The focus of this brief discussion is limited to some of the new molecular...

Author(s)
Stiller, D.
Citation
Annals of the New York Academy of Science, 1992, 653, pp 19-25

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