title: Potential avermectin resistance in a cattle herd.
authors.forename: Peter
authors.initials: P
authors.lastname: Orpin
mesh_terms: D000818:Animals; D000871:Anthelmintics / Q000494:pharmacology* / Q000627:therapeutic use; D002417:Cattle; D002418:Cattle Diseases / Q000188:drug therapy*; D004351:Drug Resistance; D005243:Feces / Q000469:parasitology; D007559:Ivermectin / Q000031:analogs & derivatives* / Q000494:pharmacology / Q000627:therapeutic use; D014254:Trichostrongylus / Q000187:drug effects / Q000302:isolation & purification*
chemical_list: D000871:Anthelmintics; D007559:Ivermectin; C019264:avermectin