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VetMed Resource

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Abstract

Author(s)
Loyacano, A. F.; Williams, J. C.; Coombs, D. F.; Hawkins, J. A.
Citation
Louisiana Agriculture, 1991, 35, 1, pp 6-7, 10
Abstract

An experiment was conducted to compare the anthelmintic efficacy of albendazole (ABZ), levamisole (LEV) and fenbendazole (FBZ) against inhibited early 4th-stage larvae (EL4) of Ostertagia ostertagi during April in Louisiana, USA. Forty cross-bred beef heifers (average weight 165 kg) were acquired...

Author(s)
Williams, J. C.
Citation
Veterinary Parasitology, 1991, 40, 1-2, pp 59-71
Abstract

Levamisole (LEV) was tested in 4 experiments to compare efficacy values against O. ostertagi when larval maturation was occurring (September), following inhibition and also when populations were expected to be largely adult (winter). A primary objective was to determine the importance of developing ...

Author(s)
Williams, J. C.; Knox, J. W.; Marbury, K. S.; Swalley, R. A.; Eddi, C. S.
Citation
Veterinary Parasitology, 1991, 40, 1-2, pp 73-85
Abstract

A total of 324 steers were randomly allotted into 4 treatment groups. Preliminary slaughters indicated that 95% of the cattle had O. ostertagi inhibited larvae. Nine calves from each group were examined at slaughter for efficacy evaluation 12 or 13 days after treatment. Efficacies against inhibited ...

Author(s)
Williams, J. C.; Bechtol, D. T.; Hollis, L. C.; Herschler, R. C.
Citation
Agri-Practice, 1991, 12, 5, pp 14-15, 17-20
Abstract

Twenty male Holstein calves averaging 105 kg in weight and naturally infected with gastrointestinal nematodes and small numbers of D. viviparus and B. phlebotomum, were given experimental infections with the 2 latter species to provide adult and larval stages for anthelmintic evaluation. Following...

Author(s)
Williams, J. C.; Nault, C.; Ramsey, R. T.; Wang, G. T.
Citation
Veterinary Parasitology, 1992, 43, 3/4, pp 293-299
Abstract

Two trials were conducted to evaluate the effect of fenbendazole molasses supplement block treatment on weight gain of weanling beef calves at a research station in Louisiana, USA. An initial (November) oral fenbendazole (5 mg/kg) treatment was administered to all animals in both trials. In Trials...

Author(s)
Miller, J. E.; Olson, T. A.; Kearney, M. T.; Myers, G. H.; Williams, J. C.
Citation
Veterinary Parasitology, 1992, 44, 3/4, pp 329-337
Abstract

The effects of either ivermectin or fenbendazole therapy in 72 beef cattle in Louisiana, USA, was evaluated over a 13-month period. The cattle were divided into 4 groups which were assigned to separate pastures: (1) ivermectin (200 µg/kg sc) administered at weaning then at 4.5-6 week intervals; (2) ...

Author(s)
Williams, J. C.; Knox, J. W.; Leaning, W. H. D.; Hawkins, J. A.
Citation
Agri-Practice, 1992, 13, 2, pp 19-27
Abstract

The anthelmintic efficacy of abamectin (avermectin B) was evaluated against gastrointestinal nematodes, including O. ostertagi inhibited larvae and lungworm, in yearling crossbred beef heifers in Louisiana, USA, during late spring. The calves were grazed on contaminated pasture for 10 weeks and...

Author(s)
Williams, J. C.; Loyacano, A. F.; Nault, C.; Ramsey, R. T.; Plue, R. E.
Citation
Veterinary Parasitology, 1992, 41, 1-2, pp 77-84
Abstract

The anthelmintic efficacy of ivermectin (IVM) delivered from a sustained-release (SR) bolus was evaluated against natural infections with gastrointestinal tract nematodes in 12 crossbred beef heifers in spring in Louisiana, USA. The 12 calves were randomly allotted to 2 groups of 6 calves each....

Author(s)
Williams, J. C.; Plue, R. E.
Citation
American Journal of Veterinary Research, 1992, 53, 5, pp 793-795
Abstract

Three groups of 11 naturally infected crossbred beef calves were injected subcutaneously with moxidectin 1% injectable at 0.2 or 0.3 mg moxidectin/kg bodyweight or with the unmedicated vehicle. Nematode infections had been acquired during grazing from December to April. Based on the faecal egg...

Author(s)
Williams, J. C.; Barras, S. A.; Wang, G. T.
Citation
Veterinary Record, 1992, 131, 15, pp 345-347

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