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VetMed Resource

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

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Abstract

The efficacy of albendazole in removing gastrointestinal nematodes and tapeworms was studied in 16 treated and 16 untreated (control) beef calves. It was administered as an oral drench at 5 ml/45.5 kg of body weight (5 mg/kg). Percentage of efficacy against the various genera was: Trichostrongylus...

Author(s)
Williams, J. C.; Sheehan, D.; Fuselier, R. H.
Citation
American Journal of Veterinary Research, 1977, 38, 12, pp 2037-2038
Abstract

Author(s)
Knox, J. W.; Williams, J. C.
Citation
Journal of Animal Science, 1979, 49, Suppl. 1, pp 193
Abstract

In Louisiana, USA, 2 yearling cattle were removed from pasture in late January, 2 in early February and 3 in early March. All were held in drylot for 2 or 3 weeks before slaughter. Ostertagia ostertagi worm burdens of those removed in January and February were similar but in the February group the...

Author(s)
Williams, J. C.; Knox, J. W.; Baumann, B. A.; Snider, T. G.; Kimball, M. G.; Hoerner, T. J.
Citation
American Journal of Veterinary Research, 1981, 42, 12, pp 2077-2080
Abstract

In May 1982, naturally infected yearling heifers at the Red River Research Station, Louisiana, USA, were given fenbendazole at 7.5 or 10.0 mg/kg body weight against inhibited early 4th-stage larvae of O. ostertagi and other intestinal nematodes. The mean numbers of O. ostertagi in 10 untreated...

Author(s)
Williams, J. C.; Knox, J. W.; Marbury, K. S.; Kimball, M. D.; Scheide, S. W.; Snider, T. G.; David, M. U.
Citation
American Journal of Veterinary Research, 1984, 45, 10, pp 1989-1993
Abstract

In anthelmintic trials, albendazole, fenbendazole and ivermectin principally inhibited early fourth larval stages of O. ostertagi in naturally infected cattle. Cattle were slaughtered 7-20 days after treatment. O. ostertagi was the predominant abomasal nematode recovered with occasional small...

Author(s)
Snider, T. G.; Williams, J. C.; Knox, J. W.; Roberts, E. D.; Romaire, T. L.
Citation
Veterinary Record, 1985, 116, 3, pp 69-72
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

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

Two dose titration studies using 0, 125, 250 and 500 µg of eprinomectin/kg of body weight were carried out in Louisiana and Georgia, USA, and 2 dose confirmation studies of selected therapeutic dosage (500 µg/kg) were carried out in Scotland and France. Monitor calves were used to determine...

Author(s)
Williams, J. C.; Stuedemann, J. A.; Bairden, K.; Kerboeuf, D.; Ciordia, H.; Hubert, J.; Broussard, S. D.; Plue, R. E.; Alva-Valdes, R.; Baggott, D. G.; Pinkall, N.; Eagleson, J. S.
Citation
American Journal of Veterinary Research, 1997, 58, 4, pp 379-383

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