title: A telephone survey of internal parasite control practices on sheep farms in Spain.
abstract: A telephone survey of farmers was conducted to determine current internal parasite control practices on sheep farms in Spain; the farmers were interviewed by their veterinarians. Anthelmintic choice was largely on veterinary advice and dominated by benzimidazoles and macrocyclic lactones. Anthelmintic rotation was separated into: no rotation (42% of farms); annual rotation (36%); rotate within year (20%); and rotate every second year (2%). The mean annual number of treatments varied subtly by region; ewes and rams 1.6-2.1, replacement lambs 1.7-2.1. Anthelmintics are administered primarily during spring and early summer (47% of treatments), and autumn (41%). Thirty-two percent of farmers introduced sheep to their properties and more than half did not quarantine drench the arrivals.
authors.affiliation: Department of Sanidad Animal, Facultad de Veterinaria, Universidad de León and Instituto de Ganadería de Montaña, León, Spain.
authors.forename: Francisco A
authors.initials: FA
authors.lastname: Rojo-Vázquez
authors.forename: Barry C
authors.initials: BC
authors.lastname: Hosking
mesh_terms: D000822:Animal Husbandry; D000818:Animals; D000871:Anthelmintics / Q000008:administration & dosage*; D003625:Data Collection; D003710:Demography; D004351:Drug Resistance; D005260:Female; D008297:Male; D009349:Nematode Infections / Q000469:parasitology / Q000517:prevention & control / Q000662:veterinary*; D010273:Parasitic Diseases, Animal / Q000469:parasitology / Q000517:prevention & control*; D012621:Seasons; D012756:Sheep; D012757:Sheep Diseases / Q000469:parasitology / Q000517:prevention & control*; D013030:Spain; D013689:Telephone
chemical_list: D000871:Anthelmintics