Results 21 to 30 of about 646 (171)

Occurrence of bornaviruses, circoviruses and polyomaviruses in necropsy samples from parrots in Poland (2014–2024) [PDF]

Journal of Veterinary Research
Proventricular dilatation disease (PDD) is a disease of parrots which has been known for many years, but only in 2008 was it confirmed that its cause is avian bornavirus (ABV).
Szotowska Ines, Ledwoń Aleksandra
doaj   +2 more sources

The Effects of Human Presence, Restraint, and Stressed Neighbors on Corticosterone Levels in Domesticated Budgerigars (Melopsittacus undulatus) [PDF]

Zoo Biology, Volume 45, Issue 1, Page 37-45, January/February 2026.
Female budgerigars (Melopsittacus undulatus) did not significantly elevate their plasma corticosterone levels in response to human presence at the beginning of the experiment. However, plasma corticosterone was significantly elevated by restraint stress, the return of a neighbor that received restraint stress, and human presence at the end of the ...
Dustin G. Reichard, Kelly V. Summers
wiley   +2 more sources

Clinical profile of microsporidial keratoconjunctivitis in healthy individuals of China —new species and neglected risk factors [PDF]

Journal of Ophthalmic Inflammation and Infection
Objective To characterize microsporidial keratoconjunctivitis (MKC) in immunocompetent individuals in Mainland China, including novel etiologies and risk factors.
Yingnan Xu, Xuguang Sun, Shanshan Xu, Shijing Deng, Yang Zhang   +4 more
doaj   +2 more sources

Avian Pox in Native Captive Psittacines, Brazil, 2015

Emerging Infectious Diseases, 2017
To investigate an outbreak of avian pox in psittacines in a conservation facility, we examined 94 birds of 10 psittacine species, including sick and healthy birds. We found psittacine pox virus in 23 of 27 sick birds and 4 of 67 healthy birds.
Felipe C.B. Esteves, Sandra Y. Marín, Maurício Resende, Aila S.G. Silva, Hannah L.G. Coelho, Mayara B. Barbosa, Natália S. D’Aparecida, José S. de Resende, Ana C.D. Torres, Nelson R.S. Martins   +9 more
doaj   +1 more source

Equações de predição dos valores energéticos dos alimentos para papagaios verdadeiros (Amazona aestiva) Predition equation of energetic values of feeds for blue-fronted parrot (Amazona aestiva)

Ciência e Agrotecnologia, 2007
Objetivou-se com este trabalho estimar, a partir dos resultados encontrados nos ensaios biológicos e análises químicas de 16 alimentos (semente de girassol, aveia, gema de ovo, ovo integral, clara de ovo, germe de trigo, farelo de trigo, milho moído ...
Carlos Eduardo do Prado Saad, Walter Motta Ferreira, Flávia Maria de Oliveira Borges, Leonardo Boscoli Lara   +3 more
doaj   +1 more source

Energia metabolizável de alimentos utilizados na formulação de rações para papagaios-verdadeiros (Amazona aestiva) Metabolizable energy of raw feeds utilized in commercial rations for blue-fronted parrot (Amazona aestiva)

Ciência e Agrotecnologia, 2008
Para avaliar a energia metabolizável de 16 alimentos comumente utilizados em rações para psitacídeos, foram utilizados 34 papagaios-verdadeiros alojados em gaiolas metabólicas e distribuídos em blocos ao acaso em 17 tratamentos (T1 - ração referência, T2
Carlos Eduardo do Prado Saad, Walter Motta Ferreira, Flávia Maria de Oliveira Borges, Leonardo Boscoli Lara   +3 more
doaj   +1 more source

An outbreak of chlamydiosis in captive psittacines

Brazilian Journal of Veterinary Pathology, 2009
This paper describes an outbreak of chlamydiosis in psittacines recovered in Minas Gerais, Brazil, from illegal trade in the Brazilian Southeastern Region.
Roselene Ecco, Ingred S Preis, Nelson R. S. Martins, Daniel A. R. Vilela, Hulimangala L. Shivaprasad   +4 more
doaj   +1 more source

Avaliação nutricional de rações comerciais e semente de girassol para papagaios-verdadeiros (Amazona aestiva) Nutricional evaluation of commercial foods and sunflower seed for blue-fronted parrot (Amazona aestiva)

Ciência e Agrotecnologia, 2007
Neste experimento utilizou-se de 12 papagaios adultos, distribuídos em blocos ao acaso em seis tratamentos (T1-Ração extrusada para psitacídeos - A, T2 -Ração peletizada para psitacídeos-B, T3 - Ração extrusada para psitacídeos-C, T4 - Ração para cães ...
Carlos Eduardo do Prado Saad, Walter Motta Ferreira, Flávia Maria de Oliveira Borges, Leonardo Boscoli Lara   +3 more
doaj   +1 more source

Pathogenesis of Avian Bornavirus in Experimentally Infected Cockatiels

Emerging Infectious Diseases, 2012
Avian bornavirus (ABV) is the presumed causative agent of proventricular dilatation disease (PDD), a major fatal disease in psittacines. However, the influencing factors and pathogenesis of PDD are not known and natural ABV infection exhibits remarkable ...
Anne K. Piepenbring, Dirk Enderlein, Sibylle Herzog, Erhard F. Kaleta, Ursula Heffels-Redmann, Saskia Ressmeyer, Christiane Herden, Michael Lierz   +7 more
doaj   +1 more source

Avian Bornavirus in Free-Ranging Psittacine Birds, Brazil

Emerging Infectious Diseases, 2014
Avian bornavirus (ABV) has been identified as the cause of proventricular dilatation disease in birds, but the virus is also found in healthy birds. Most studies of ABV have focused on captive birds.
Nuri Encinas-Nagel, Dirk Enderlein, Anne Piepenbring, Christiane Herden, Ursula Heffels-Redmann, Paulo A.N. Felippe, Clarice Arns, Hafez M. Hafez, Michael Lierz   +8 more
doaj   +1 more source