Efficacy of coumaphos crumbles and naftalofos boluses against nematodes of cattle.

Abstract

Coumaphos crumbles (0.32%) administered to cattle at the dose level of 2 mg of active ingredient per kilogram of body weight each day for 6 days reduced fecal egg counts by 98.4%. The compound was highly efficacious in removing adult worms of the genera Haemonchus, Ostertagia, Trichostrongylus, Cooperia, Oesophagostomum, and Trichuris, removing 99.8, 86.7, 95.9, 99.8, 74.8, and 90.9% of the worms, respectively. The overall efficacy of coumaphos crumbles against the adult forms of the 6 genera was 91.3%. Naftalofos boluses administered to cattle at the dose level of 50 mg of active ingredient per kilogram of body weight reduced fecal egg counts by 83.5%. The efficacies against adult nematodes were as follows: Haemonchus, 99.8%; Ostertagia, 86.9%; Trichostrongylus, 74.0%; Cooperia, 71.9%; Oesophagostomum, 40.1%; and Trichuris, 87.9%. The overall efficacy of naftalofos boluses against the nematodes was 76.8%.

• Authors: S J Zeakes, J O Mozier, R G White, M F Hansen
• Journal: American journal of veterinary research (Am J Vet Res) Vol. 37 Issue 6 Pg. 709-10 (Jun 1976) ISSN: 0002-9645 [Print] United States
• PMID: 937791 (Publication Type: Journal Article)

Chemical References

• Insecticides
• Naphthalenes
• Organophosphorus Compounds
• naftalofos
• Coumaphos

Topics

• Animals
• Cattle
• Cattle Diseases (drug therapy)
• Coumaphos (administration & dosage, therapeutic use)
• Female
• Insecticides (therapeutic use)
• Male
• Naphthalenes (administration & dosage, therapeutic use)
• Nematode Infections (drug therapy, veterinary)
• Organophosphorus Compounds (administration & dosage, therapeutic use)