title: Acquisition of resistance to the bont tick Amblyomma hebraeum (Acarina: Ixodidae) by goats.
abstract: Goats acquired resistance to larvae of Amblyomma hebraeum following three repeated infestations. Resistance was associated with immediate Type I hypersensitivity reactions following intradermal skin tests using crude egg extracts. In a separate experiment, the inoculation of tick-naive goats with extracts of the larvae of A. hebraeum failed to induce observable effects on feeding larvae despite the development of anti-larval antibodies.
authors.affiliation: Department of Zoology and Entomology, Rhodes University, Grahamstown, South Africa.
authors.forename: D
authors.initials: D
authors.lastname: Adamson
authors.forename: B H
authors.initials: BH
authors.lastname: Fivaz
authors.forename: T N
authors.initials: TN
authors.lastname: Petney
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D015511:Goat Diseases / Q000276:immunology*; D006041:Goats; D007110:Immunity, Active; D007114:Immunization / Q000662:veterinary; D005779:Immunodiffusion; D007428:Intradermal Tests / Q000662:veterinary; D007814:Larva / Q000276:immunology; D008297:Male; D009758:Nymph / Q000276:immunology; D013984:Tick Infestations / Q000276:immunology / Q000662:veterinary*; D013987:Ticks / Q000276:immunology*