title: Control of bovine leukosis virus in a dairy herd by a change in dehorning.
abstract: Following the demonstration that bovine leukosis virus was transmitted in calves by gouge dehorning, electrical dehorning at a younger age was implemented in a commercial Holstein herd. Subsequently, annual testing of the herd revealed a decline in the prevalence of bovine leukosis virus antibodies as older cattle dehorned by the former method were replaced by younger cattle dehorned by the latter method.
authors.affiliation: Department of Epidemiology, School of Public Health and Community Medicine, University of Washington, Seattle 98195.
authors.forename: R F
authors.initials: RF
authors.lastname: DiGiacomo
authors.forename: S G
authors.initials: SG
authors.lastname: Hopkins
authors.forename: R L
authors.initials: RL
authors.lastname: Darlington
authors.forename: J F
authors.initials: JF
authors.lastname: Evermann
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control* / Q000635:transmission; D005260:Female; D006733:Horns / Q000601:surgery*; D007938:Leukemia / Q000517:prevention & control / Q000635:transmission / Q000662:veterinary*; D001909:Leukemia Virus, Bovine / Q000276:immunology
chemical_list: D000914:Antibodies, Viral