PMID: 7027848Aug 1, 1981Paper

Controlled evaluation of ivermectin in Shetland ponies

American Journal of Veterinary Research
T M Craig, J M Kunde

Abstract

Ivermectin was injected IM into 12 yearling Shetland ponies. The following reactions in percentages of parasites recovered from ponies given 200 microgram/kg or 300 microgram/kg, as compared with the parasitic population in those given the vehicle at 1 week after injection, were as follows: Otobius megnini nymphs--no reduction; Gasterophilus intestinalis--100% and 99.9%; G nasalis--100% and 99.9%; Parascaris equorum adults--100% and 96%; Strongylus vulgaris adults--100% and 100%; S edentatus adults--100% and 100%; cyathostome adults of the genera Gyalocephalus, Cylicocyclus, Cyathostomum, Cylicostephanus, and Poteriostomum--99.9% and 100%; 4th-stage larvae--97.3% and 96.8%; Oesophagodontus robustus adults--100% and 100%; Triodontophorus spp--adults--100% and 100%, 4th-stage larvae--95.1% and 100%; and Oxyuris equi adult males--66.7% and 77.7%, adult females--96.5% and 100%, and 4th-stage larvae--94.1% and 96.9%. Other parasites encountered were too few in number to estimate drug efficacy.

Related Concepts

Related Feeds

Anthelmintics

Anthelmintics or antihelminthics are a group of antiparasitic drugs that expel parasitic worms (helminths) and other internal parasites from the body by either stunning or killing them and without causing significant damage to the host. Discover the latest research on anthelmintics here.

Anthelmintics (ASM)

Anthelmintics or antihelminthics are a group of antiparasitic drugs that expel parasitic worms (helminths) and other internal parasites from the body by either stunning or killing them and without causing significant damage to the host. Discover the latest research on anthelmintics here.