title: The reappearance of strongyle eggs in faeces of horses treated with pyrantel embonate.
abstract: The reappearance of strongyle eggs in the faeces of horses treated with pyrantel embonate was studied. The horses (103) were divided in 11 groups on 8 different farms. The efficacy of pyrantel embonate against strongyles, based on egg count reduction tests, was 99.8%. Mean weekly egg counts performed between week 2 and week 9 after treatment showed that 5 weeks after treatment the egg output passed the 90% reduction level. It is concluded that strategic treatments of horses with pyrantel embonate for the prevention of strongylosis should be administered with intervals of 6 weeks.
authors.affiliation: Utrecht University, Faculty of Veterinary Medicine, Department of Parasitology and Tropical Veterinary Medicine, The Netherlands.
authors.forename: J H
authors.initials: JH
authors.lastname: Boersema
authors.forename: F H
authors.initials: FH
authors.lastname: Borgsteede
authors.forename: M
authors.initials: M
authors.lastname: Eysker
authors.forename: I
authors.initials: I
authors.lastname: Saedt
mesh_terms: D000818:Animals; D005243:Feces / Q000469:parasitology*; D006736:Horses; D010270:Parasite Egg Count / Q000662:veterinary; D011716:Pyrantel Pamoate / Q000627:therapeutic use*; D012008:Recurrence; D013319:Strongyle Infections, Equine / Q000188:drug therapy* / Q000209:etiology; D013323:Strongylus / Q000187:drug effects / Q000302:isolation & purification
chemical_list: D011716:Pyrantel Pamoate