Proventricular dilatation disease (PDD) outbreak in blue-and-gold macaws (Ara ararauna) in the State of Santa Catarina, southern Brazil

ABSTRACT: Proventricular dilatation disease (PDD) is a lethal and important disease of captive psittacine birds, and affects a wide range of species, including endangered ones, and lacks an effective treatment. This report describes PDD in three blue-and-gold macaws (Ara ararauna) in southern Brazil. All three macaws originated from the same aviary and presented similar clinical signs including anorexia, apathy, emaciation and prostration. At necropsy, one of the macaws presented an enlarged proventriculus. Histologically, lymphoplasmacytic infiltrates was observed in the ganglia and nerves of the esophagus, crop, proventriculus, ventriculus, heart, adrenal glands, and adrenal medulla of all three cases. Two macaws had meningoencephalomyelitis and one had myocarditis. Immunohistochemistry identified PaBV antigen in the brain, proventricular, ventricular ganglia, and epicardial ganglia, and cardiomyocytes of all three macaws.

Bibliographic Details

Main Authors:	Araujo,Jeann Leal de, Cristo,Thierry Grima de, Morais,Raissa Moreira de, Costa,Leonardo Silva da, Biezus,Giovana, Müller,Thiago Rinaldi, Rech,Raquel Rubia, Casagrande,Renata Assis
Format:	Digital revista
Language:	English
Published:	Colégio Brasileiro de Patologia Animal - CBPA 2017
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-736X2017001101331
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