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Abstract

Efficacy of a spring strategic treatment programme with fenbendazole (FBZ) to reduce the accumulation of Ostertagia ostertagi inhibited early fourth-stage larvae (EL4) was investigated in two groups of crossbred beef heifers in Louisiana, USA, which were 7-9 months of age and ranged in weight from...

Author(s)
Williams, J. C.; Loyacano, A. F.; Broussard, S. D.; Coombs, D. F.; DeRosa, A.; Bliss, D. H.
Citation
Veterinary Parasitology, 1995, 59, 2, pp 127-137
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

The anthelmintic effectiveness of moxidectin, administered topically at the rate of 500 µg/kg bwt, was determined for lactating dairy cows in Arkansas, USA. Naturally infected animals were given either topical vehicle or moxidectin (Cydectin Pour-On) at the rate of 1 ml/10 kg bwt (10...

Author(s)
Yazwinski, T. A.; Tucker, C.; Copeland, S.; Yazwinski, T.; Guerino, F.
Citation
Veterinary Parasitology, 1999, 86, 4, pp 223-228
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

Forty yearling calves were assigned to four equal groups; three of the groups were treated with oxfendazole at dose rates of 6.75 mg/kg, 4.50 mg/kg, or 2.25 mg/kg body weight, while the fourth group served as an untreated control. The calves were native to north-east Mississippi, USA, and harboured ...

Author(s)
Couvillion, C. E.; Herschler, R. C.; Boyle, C. R.; Hawkins, J. A.
Citation
Veterinary Record, 1989, 124, 17, pp 462-464
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

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

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