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VetMed Resource

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Abstract

Efficacy of ivermectin in a topical formulation was evaluated in cattle against adult gastrointestinal and pulmonary nematode infections (experiment 1, n = 24), the 2nd- and 3rd-stage larvae of Hypoderma spp. (experiment 2, n = 12), and the biting louse Damalinia bovis [Bovicola bovis] (experiment...

Author(s)
Alva-Valdes, R.; Wallace, D. H.; Holste, J. E.; Egerton, J. R.; Cox, J. L.; Wooden, J. W.; Barrick, R. A.
Citation
American Journal of Veterinary Research, 1986, 47, 11, pp 2389-2392
Abstract

Ivermectin dosages which permitted ≤ 1% of infected control calf worm populations to establish ranged from < 2.5 µg/kg/day, which totally prevented infection with Dictyocaulus viviparus and Oesophagostomum radiatum, to ∼ 30 µg/kg/day required to suppress Nematodirus helvetianus to the same...

Author(s)
Egerton, J. R.; Suhayda, D.; Eary, C. H.
Citation
Veterinary Parasitology, 1986, 22, 1/2, pp 67-75
Abstract

The anthelmintic efficacy of ivermectin in oral paste formulation was evaluated against the 4th-stage larvae of 8 gastrointestinal nematodes and Dictyocaulus viviparus in 14 experimentally inoculated calves. Two groups consisting of 7 calves each were formed by restricted randomization on body...

Author(s)
Alva-Valdes, R.; Benz, G. W.; Wallace, D. H.; Egerton, J. R.; Gross, S. J.; Wooden, J. W.
Citation
American Journal of Veterinary Research, 1984, 45, 4, pp 685-686
Abstract

Eighteen calves about 3 months old were inoculated with 3000 D. viviparus infective larvae. Three groups of 6 calves each were formed. Thirteen days after inoculations, 3 of the 6 group 1 control calves were given vehicle s/c and the group 2 calves were given ivermectin at the dose rate of 200...

Author(s)
Benz, G. W.; Ernst, J. V.; Egerton, J. R.
Citation
American Journal of Veterinary Research, 1984, 45, 4, pp 771-772
Abstract

The Bla component of the avermectins is an alpha -L-oleandrosyl- alpha -L-oleandroside macrocyclic lactone. When given to sheep as a single oral dose at 0.1 mg/kg it caused a reduction of >95% in the numbers of Haemonchus contortus, Ostertagia circumcincta (including inhibited 4th-stage larvae),...

Author(s)
Egerton, J. R.; Ostlind, D. A.; Blair, L. S.; Eary, C. H.; Suhayda, D.; Cifelli, S.; Riek, R. F.; Campbell, W. C.
Citation
Antimicrobial Agents and Chemotherapy, 1979, 15, 3, pp 372-378
Abstract

The 22,23-dihydro derivative (ivermectin) of the major B1 components of the avermectins was evaluated, by oral and parenteral routes, for anthelmintic activity in cattle experimentally infected with 7 gastro-intestinal nematode species and lungworm. Treatment at three dosages was administered when...

Author(s)
Egerton, J. R.; Eary, C. H.; Suhayda, D.
Citation
Veterinary Parasitology, 8, 1, pp 59-70

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