Critical tests of morantel-trichlorfon paste formulation against internal parasites of the horse

Veterinary Parasitology
J H DrudgeS C Tolliver

Abstract

Critical tests were completed on six horses to evaluate the antiparasitic activity of a paste formulation mixture of morantel citrate and trichlorfon, administered intraorally at the dose rate of 6 mg morantel base kg-1 and trichlorfon at 30 mg kg-1. Aggregate average removals were: 78% for two horses infected with 2nd instar Gasterophilus intestinalis; 100% for one infected with 2nd instar G. nasalis; 96% for six infected with 3rd instar G. intestinalis; 100% for four infected with 3rd instar G. nasalis; 100% for five infected with Parascaris equorum; 100% for one infected with mature Oxyuris equi; 100% for five infected with Strongylus vulgaris; 72% for five infected with S. edentatus; and partial removal (25%) of Anoplocephala perfoliata infection from one infected animal. Pre- and post-treatment EPG and LPG data indicated a reduction of 97% of the mature small strongyle infections. Evidence of toxicosis was not observed in any of the horses.

References

Jan 1, 1978·Annual Review of Microbiology·H O Lobel, I G Kagan
Jul 28, 1973·The Veterinary Record·R L CornwellJ M Pott
Aug 16, 1969·The Veterinary Record·R L Cornwell, R M Jones
Sep 1, 1969·New Zealand Veterinary Journal·R C MacKay

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