title: Ivermectin treatment of horses: effect on the distribution of lawns and roughs in horse pastures.
abstract: A study was carried out to assess the feasibility of determining the grazing patterns of horses bimonthly via aerial survey and standard cartographic techniques. The grazing patterns in pastures with equivalent stocking rates of horses treated bimonthly with 200 micrograms of ivermectin kg-1 or 10 mg of oxibendazole kg-1 was assessed using aerial survey mapping performed three times during a grazing season. The distribution patterns of lawns and roughs in pastures were similar at all times during the study. Aerial survey was determined to be a very efficient and objective method of determining the composition of pastures grazed by horses.
authors.affiliation: Department of Pathobiology, College of Veterinary Medicine, University of Illinois, Urbana 61801.
authors.forename: J A
authors.initials: JA
authors.lastname: DiPietro
authors.forename: K E
authors.initials: KE
authors.lastname: Ewert
authors.forename: K S
authors.initials: KS
authors.lastname: Todd
mesh_terms: D000818:Animals; D000871:Anthelmintics / Q000494:pharmacology / Q000627:therapeutic use; D001359:Aviation; D001562:Benzimidazoles / Q000494:pharmacology / Q000627:therapeutic use; D005260:Female; D005843:Geography; D006734:Horse Diseases / Q000517:prevention & control*; D006736:Horses; D007559:Ivermectin / Q000494:pharmacology / Q000627:therapeutic use*; D010272:Parasitic Diseases / Q000517:prevention & control; D010273:Parasitic Diseases, Animal; D006109:Poaceae / Q000187:drug effects / Q000254:growth & development*; D011897:Random Allocation
chemical_list: D000871:Anthelmintics; D001562:Benzimidazoles; C011321:oxibendazole; D007559:Ivermectin