[Gastrointestinal helminths in horses. Anthelmintic resistance in equine small strongylus and epidemiological aspects of Parascaris equorum and Anoplocephala perfoliata infections]

anoplocephala anthelminthique anthelmintics benzimidazole benzimidazoles caballos cerdo cheval epidemiologia epidemiologie epidemiology helminthe helminths helmintos horses in vitro experimentation intestin intestines intestinos ivermectin ivermectina ivermectine noruega norway parascaris equorum pirantel porcin pyrantel resistance to chemicals rumiante ruminant ruminants soil types strongylus swine symptome symptoms terapia therapy tipos de suelos type de sol