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Dispharynx nasuta (Nematoda: Acuariidae) Infection Causing Proventricular Lesions and Death in Three Captive Rosellas (Psittaciformes: Psittacidae)

2011; American Association of Zoo Veterinarians; Volume: 42; Issue: 1 Linguagem: Inglês

10.1638/2010-0143.1

1937-2825

Carlos Daniel Gornatti Churria, Eugenia Spinsanti, Javier Origlia, H. Marcantoni, Miguel V. Píscopo, Miguel Herrero Loyola, Miguel Ángel Petruccelli,

Helminth infection and control

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.