Results 121 to 130 of about 593 (144)

The pathogenesis of proventricular dilatation disease

Animal Health Research Reviews, 2016
AbstractBornaviruses cause neurologic diseases in several species of birds, especially parrots, waterfowl and finches. The characteristic lesions observed in these birds include encephalitis and gross dilatation of the anterior stomach — the proventriculus. The disease is thus known as proventricular dilatation disease (PDD).
Ian Tizard, H. L. Shivaprasad, Jianhua Guo, Samer Hameed, Judith Ball, Susan Payne   +5 more
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Peripheral neuritis in psittacine birds with proventricular dilatation disease

Avian Pathology, 2001
Necropsies were performed on 14 psittacine birds of various species suspected to have proventricular dilatation disease (PDD). Eight of the birds exhibited neurological signs (seizures, ataxia, tremors and uncoordinated movements) and digestive tract signs (crop stasis, regurgitation, inappetance and presence of undigested food in the faeces).
Y, Berhane, D A, Smith, S, Newman, M, Taylor, E, Nagy, B, Binnington, B, Hunter   +6 more
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Fatal Proventricular Dilatation Disease in Captive Native Psittacines in Brazil

Avian Diseases, 2014
An outbreak of proventricular dilatation disease (PDD), a fatal inflammatory disease of psittacines (Aves: Psittaciformes), is described in native Brazilian psittacines. Twenty captive psittacines that died of suspected PDD were necropsied and 10 were submitted to histopathology, reverse transcriptase PCR (RT-PCR), and immunohistochemistry (IHC) for ...
Rogério Venâncio, Donatti, Maurício, Resende, Francisco Carlos Júnior, Ferreira, Marcus Vinícius Romero, Marques, Roselene, Ecco, H L, Shivaprasad, José Sérgio, de Resende, Nelson Rodrigo da Silva, Martins   +7 more
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Detection of an antigen specific for proventricular dilation disease in psitticine birds

Veterinary Record, 2008
PROVENTRICULAR dilation disease (pdd) affects many species of birds, especially large psittacines such as macaws ([Gregory 1994][1]). The classical presenting sign is paralysis and dilation of the proventriculus secondary to nerve damage. pdd is believed to be caused by a virus. [Grund and others (
I, Villanueva, P, Gray, I, Tizard
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Proventricular Dilatation Disease in Cockatiels (Nymphicus hollandicus) After Infection With a Genotype 2 Avian Bornavirus

Journal of Avian Medicine and Surgery, 2011
An isolate of genotype 2 avian bornavirus (ABV) was recovered from a cockatiel (Nymphicus hollandicus) that was euthanatized for an unrelated lesion and showing no clinical evidence of proventricular dilatation disease (PDD). On histopathologic examination, mild inflammatory lesions were present in the heart and brain, but gastrointestinal lesions ...
Negin, Mirhosseini, Patricia L, Gray, Sharman, Hoppes, Ian, Tizard, H L, Shivaprasad, Susan, Payne   +5 more
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First finding of proventricular dilatation disease in Croatia

2007
The poster documents the first finding of proventricular dilatation disease in farm-reared psittacine birds in Croatia. According to clinical signs, gross lesions and histopathologic examination the disease was confirmed in a medium sulphur-creasted cockatoo (Cacatua galerita eleonora) and a blue and gold macaw (Ara ararauna).
Tišljar, Marina, Gottstein, Željko, Bauer Šegvić, Anamarija, Ljubanović, Danica, Horvatek, Danijela, Prukner-Radovčić, Estella   +5 more
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Blindness as a sign of proventricular dilatation disease in a grey parrot (Psittacus erithacus erithacus)

Journal of Small Animal Practice, 2008
An approximately eight‐year‐old female grey parrot (Psittacus erithacus erithacus) was presented with a two months history of blindness. The radiographic examination showed a dilatation of the proventriculus, ventriculus and gut. Ophthalmoscopy and electroretinography revealed degeneration of the retina.
A, Steinmetz, M, Pees, V, Schmidt, M, Weber, M-E, Krautwald-Junghanns, G, Oechtering   +5 more
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Identification of Mixed Infections with Different Genotypes of Avian Bornaviruses in Psittacine Birds with Proventricular Dilatation Disease

Avian Diseases Digest, 2012
Proventricular dilatation disease (PDD) is a fatal, progressive neurological disorder of psittacine birds, which is caused by a single-stranded RNA virus, the avian bornavirus (ABV). The disease pattern includes lymphoplasmacytic inflammation of the central, peripheral and autonomic nervous system.
N, Nedorost, C A, Maderner, J, Kolodziejek, H, Lussy, N, Nowotny, H, Weissenböck   +5 more
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[Proventricular dilatation disease and Avian Bornavirus as a possible cause].

Tierarztliche Praxis. Ausgabe K, Kleintiere/Heimtiere, 2012
Proventricular Dilatation Disease (PDD) is a very important letal disease in parrots. It affects several psittacine species and is a high risk factor for the health of breeding collections, but is rarely observed in other avian families. To date, the etiology of the disease remained unclear, though a virus infection was always assumed.
M, Lierz, C, Herden, S, Herzog, A, Piepenbring   +3 more
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Avian bornavirus and proventricular dilatation disease: diagnostics, pathology, prevalence, and control.

The veterinary clinics of North America. Exotic animal practice, 2013
Avian bornavirus (ABV) has been shown the cause of proventricular dilatation disease (PDD) in psittacines. Many healthy birds are infected with ABV, and the development of PDD in such cases is unpredictable. As a result, the detection of ABV in a sick bird is not confirmation that it is suffering from PDD. Treatment studies are in their infancy. ABV is
Sharman M, Hoppes, Ian, Tizard, H L, Shivaprasad   +2 more
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