title: Clinical use of dichlorvos (Nuvan) and trichlorfon (Neguvon) in the treatment of salmon louse, Lepeophtheirus salmonis. Compliance with the recommended treatment procedures.
abstract: Veterinarians representing one third of the Norwegian fish farms were asked about the clinical use of dichlorvos and trichlorfon by use of a questionnaire. A total of 45 veterinarians had experience in treatment of salmon lice with these organophosphates. Fourty-nine percent of the veterinarians reported that the fish farmers in their region solely used the recommended treatment equipment when delousing the fish, of these 1/4 always oxygenated the treatment solution. Repeated treatment were always prescribed by 24% of the veterinarians, while 44% did this occasionally. Of the 45 veterinarians 7% were often present and 44% were occasionally present at the fish farms in connection with the treatment. The answers showed that compliance with the recommended treatment procedures was unsatisfactory.
authors.affiliation: Department of Pharmacology and Toxicology, Norwegian College of Veterinary Medicine/National Veterinary Institute, Oslo.
authors.forename: K
authors.initials: K
authors.lastname: Grave
authors.forename: M
authors.initials: M
authors.lastname: Engelstad
authors.forename: N E
authors.initials: NE
authors.lastname: Søli
authors.forename: E L
authors.initials: EL
authors.lastname: Toverud
mesh_terms: D000818:Animals; D003445:Crustacea; D004006:Dichlorvos / Q000627:therapeutic use*; D004478:Ectoparasitic Infestations / Q000188:drug therapy / Q000662:veterinary*; D005393:Fish Diseases / Q000188:drug therapy*; D009664:Norway; D012474:Salmon / Q000469:parasitology*; D011795:Surveys and Questionnaires; D014236:Trichlorfon / Q000627:therapeutic use*
chemical_list: D004006:Dichlorvos; D014236:Trichlorfon