title: Studies on feeding of Argas (Persicargas) miniatus larvae (Acari: Argasidae) on naive chicks.
abstract: The histology of skin responses to infestation with Argas (Persicargas) miniatus Koch, 1844, larvae was investigated on previously unexposed 1-mo-old chicks. An amorphous, acidophilic substance, referred to as cement, was observed from 24 h after infestation until the ticks had detached. The morphology of the lesions changed gradually during the time of infestation. Initially, dissociation of collagen fibers and a mild infiltration with heterophil and mononuclear cells (12-24 h) was observed. Then, fibroblastic cords, mononuclear cell focuses, erythrocytes, and some heterophils (48-72 h) could be observed. Finally, predominance of fibroblast proliferation was noted.
authors.affiliation: Departamento de Parasitologia, Universidade de São Paulo, Brasil.
authors.forename: T T
authors.initials: TT
authors.lastname: Schumaker
authors.forename: M R
authors.initials: MR
authors.lastname: Baccaro
authors.forename: N
authors.initials: N
authors.lastname: Kasai
mesh_terms: D000818:Animals; D002645:Chickens / Q000469:parasitology*; D005247:Feeding Behavior / Q000502:physiology; D007814:Larva / Q000502:physiology; D011201:Poultry Diseases / Q000469:parasitology* / Q000473:pathology; D013984:Tick Infestations / Q000473:pathology / Q000662:veterinary*; D013987:Ticks / Q000502:physiology*