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VetMed Resource

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

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Abstract

A total of 41 cows and their calves were used to evaluate the effect of midsummer treatment (August 3) with ivermectin (IVOMEC) in Oklahoma, USA. August-October weight gains in calves (119 lbs in 21 controls compared with 143 lbs in 20 treated animals) were significantly improved by treatment....

Author(s)
Smith, S. C.; Kelley, J. W.
Citation
Animal Science Research Report, Agricultural Experiment Station, Oklahoma State University, 1991, MP-134, pp 201-203
Abstract

Forty autumn born (mostly October and November) nursing calves were used to evaluate a winter treatment (December 8) with ivermectin (Ivomec) in southeast Oklahoma, USA. This treatment had no statistically significant effect on weight gain when calves were weighed 151 days after treatment (in May).

Author(s)
Smith, S. C.
Citation
Animal Science Research Report, Agricultural Experiment Station, Oklahoma State University, 1991, MP-134, pp 204-205
Abstract

There are currently 4 major options for control of ostertagiasis and other ruminant gastrointestinal parasites. These are the traditional, suppressive, integrated and strategic approaches. Strategic dosing is the most realistic and beneficial approach for most regions of the world, including the...

Author(s)
Herd, R. P.
Citation
Veterinary Parasitology, 1988, 27, 1, pp 111-123
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

The efficacy of netobimin in removing naturally acquired gastrointestinal nematode infections was evaluated in 10 treated and 10 untreated yearling beef heifers. The anthelmintic was administered as an oral drench at a dose level of 7.5 mg/kg bwt. Faecal egg counts were reduced with netobimin by...

Author(s)
Richards, L. S.; Zimmerman, G. L.; Weber, D. W.; Dawley, S. W.; Nelson, M. J.; Schons, D. J.
Citation
Veterinary Parasitology, 1987, 26, 1-2, pp 79-85
Abstract

Boluses of morantel tartrate, administered on May 3, 1982 effectively reduced the gastrointestinal nematode population in 35 calves grazed for 185 days on pastures in Idaho, USA. 35 untreated calves were grazed on adjacent pastures. An 83% reduction of worm burden at the end of the pasture season...

Author(s)
Hoover, R. C.; Lincoln, S. D.; Newby, T. J.; Bliss, D. H.
Citation
Veterinary Medicine & Small Animal Clinician, 1984, 79, 8, pp 1082, 1084-1086
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

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

The efficacy of febantel at a dosage of 5 mg/kg (45.5% paste formulation) against inhibited early 4th-stage larvae (EL4) of Ostertagia ostertagi, other nematodes of the abomasum, and Dictyocaulus viviparus was investigated in 4- to 6-month-old Holstein calves that grazed on pasture heavily...

Author(s)
Williams, J. C.; Marbury, K. S.; Eddi, C. S.; Willis, E. R.; Luther, D. G.
Citation
American Journal of Veterinary Research, 1988, 49, 12, pp 2085-2089
Abstract

3 groups of 17 Angus × Hereford steers were used to evaluate effects of strategic anthelmintic treatment on safe (group 1) and contaminated (group 2) pasture (in Louisiana, USA) in comparison with minimal treatment at weaning and contaminated pasture (group 3). The investigation extended from...

Author(s)
Williams, J. C.; Knox, J. W.; Marbury, K. S.; Kimball, M. D.; Scheide, S. W.; Snider, T. G.
Citation
Research in Veterinary Science, 1988, 45, 1, pp 31-40

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