Abstract |
The efficacy of the benzimidazole, oxfendazole, and the organophosphate, caviphos, against gastrointestinal parasites of ponies was evaluated by the critcial test method. Oxfendazole (10 mg/kg of body weight) given in single oral doses was 100% effective against adult large strongylids (Strongylus vulgaris, Strongylus edentatus, and Strongylus equinus), 99% effective against adult small strongylids, and 97% effective against 4th-stage small strongylids (genera identified in order of frequency: Cylicostephanus, Cyathostomum, Cylicocyclus, Triodontophorus, Poteriostomum, Oesophagodontus, Cylicodontophorus, Gyalocephalus, and Craterostomum). Caviphos (40 mg/kg of body weight) admixed in the grain ration (horse crunch) was 89% effective against adult large strongylids (S vulgaris and S edentatus) and 99% effective against adult small strongylids (genera identified earlier in order of frequency above), but only 35% effective against 4th-stage small strongylids. Both drugs were effective (100%) against adult and immature pinworms (Oxyuris equi) but ineffective against Habronema spp and Draschia megastoma. Oxfendazole was only 11% effective against stomach bots (Gasterophilus spp); caviphos was 73% effective against these species. During a three-day pretreatment interval, about 34% of the total population of small strongylids was lost spontaneously from the 29 ponies.
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Authors | M L Colglazier |
Journal | American journal of veterinary research
(Am J Vet Res)
Vol. 40
Issue 3
Pg. 384-6
(Mar 1979)
ISSN: 0002-9645 [Print] United States |
PMID | 475090
(Publication Type: Journal Article)
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Chemical References |
- Anthelmintics
- Benzimidazoles
- Carbamates
- Insecticides
- Organophosphorus Compounds
- Dichlorvos
- caviphos
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Topics |
- Animals
- Anthelmintics
(therapeutic use)
- Benzimidazoles
(therapeutic use)
- Carbamates
(therapeutic use)
- Dichlorvos
(analogs & derivatives)
- Diptera
- Female
- Horses
- Insecticides
(therapeutic use)
- Male
- Organophosphorus Compounds
- Parasitic Diseases
(drug therapy)
- Parasitic Diseases, Animal
- Strongyle Infections, Equine
(drug therapy)
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