title: Dispharynx nasuta (Nematoda:Acuariidae) infection causing proventricular lesions and death in three captive rosellas (Psittaciformes:Psittacidae).
abstract: Two adult male Crimson rosellas (Platycercus elegans) and an adult female eastern rosella (Platycercus eximius) were found dead in their cages in a private aviary in March 2009, April 2010, and February 2010, respectively, without premonitory signs. Their postmortem examination showed pectoral muscle atrophy and a distended proventriculus. The proventricular mucosal surface was covered with a gelatinous, whitish material, where a large number of nematode parasites identified as Dispharynx nasuta were present. A histologic examination revealed a hyperplastic mucosa, spirurid nematodes in the mucosal layer and inflammatory mononuclear cells in the lamina propria. This is the first report of a D. nasuta infection associated with proliferative proventriculitis and subsequent death in psittacine birds.
authors.affiliation: Cátedra de Patología de Aves y Pilíferos, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata (UNLP), calle 60 y 118 s/n, La Plata (CC 296 B1900AVW), Buenos Aires Province, Argentina. danielgornatti@fcv.unlp.edu.ar
authors.forename: Carlos Daniel Gornatti
authors.initials: CD
authors.lastname: Churria
authors.forename: Eugenia
authors.initials: E
authors.lastname: Spinsanti
authors.forename: Javier
authors.initials: J
authors.lastname: Origlia
authors.forename: Hugo
authors.initials: H
authors.lastname: Marcantoni
authors.forename: Miguel
authors.initials: M
authors.lastname: Piscopo
authors.forename: Miguel Herrero
authors.initials: MH
authors.lastname: Loyola
authors.forename: Miguel
authors.initials: M
authors.lastname: Petruccelli
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000469:parasitology*; D017809:Fatal Outcome; D005260:Female; D008297:Male; D009349:Nematode Infections / Q000469:parasitology / Q000662:veterinary*; D010311:Parrots; D011531:Proventriculus / Q000469:parasitology* / Q000473:pathology