Parasite control methods used by horse owners: factors predisposing to the development of anthelmintic resistance in nematodes.

摘要: One hundred and fifty horse owners, primarily private owners riding schools, replied to a questionnaire concerning the practices they used control parasites. Twenty-seven had experienced parasite problem. Faecal samples from 188 horses selected at random showed that worm were generally successful; however, many not following recommendations for slowing development of resistant In 1996, 86 per cent using either three or two classes anthelmintic year, median six doses with range one 11. Approximately half more commonly up five horses, picked their horses' faeces least once week, but these also year than who did pick faeces. One-third manually removed Gasterophilus species eggs hairs, 94 them ivermectin. Many treated specifically Anoplocephala species, cyathostome larvae most likely use year. One-hundred-and-seven second asking information about factors influenced practices. particularly by cost anthelmintic. For timing frequency treatment, choice drug, advertisements, magazine articles veterinary surgeons. magazines aimed brands drugs frequently advertised in recommended drug These results are discussed relation influence on anthelmintic-resistant nematodes.