Avian polyomavirus (APV) infection, also called as budgerigar fledgling disease (BFD) causes various health problems in many psittacine species which may cause untimely death. The aims of this study were to investigate, for the first time, the detection, molecular characterization and phylogenetic analysis of avian polyomavirus (APV) in Pakistani psittacine birds. In an aviary a disease similar to APV was found and 90% of the nestlings died within a few weeks. Seven to ten-day-old parrot nestlings (n = 3) from the aviary were presented with feather abnormalities, plumage defect and were clinically depressed. Birds died at 11th, 14th and 16th day of age. Samples of hearts, livers, spleen, feathers and kidneys were collected from the dead birds. Samples were analyzed for the presence of APV DNA by using PCR. APV VP1 gene was partially sequenced, and phylogenetic analysis was performed. The APV strain was similar to those previously reported in other areas of the world. The results of this investigation indicate presence of a high frequency of APV infections in psittacine birds in Pakistan.
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http://dx.doi.org/10.1007/s11259-019-09759-7 | DOI Listing |
Virol J
November 2024
Institute of Biotechnology, Life Sciences Center, Vilnius University, Saulėtekio al. 7, Vilnius, LT-10257, Lithuania.
Comp Immunol Microbiol Infect Dis
December 2024
Department of Veterinary Biomedical Sciences, Faculty of Veterinary and Animal Sciences PMAS-Arid Agriculture University, Rawalpindi, Pakistan.
J Exp Zool A Ecol Integr Physiol
January 2025
School of Life Sciences, Arizona State University, Tempe, Arizona, USA.
Expression of vibrant plumage color plays important communication roles in many avian clades, ranging from penguins to passerines, but comparatively less is known about color signals in parrots (order Psittaciformes). We measured variation in coloration from three plumage patches (red face, blue rump, red tail) in an introduced population of rosy-faced lovebirds (Agapornis roseicollis) in Phoenix, Arizona, USA and examined color differences between the sexes and ages as well as relationships with several indices of quality, including disease presence/absence (infection with beak and feather disease, Circovirus parrot, and a polyomavirus, Gammapolyomavirus avis), nutritional state (e.g.
View Article and Find Full Text PDFJ Avian Med Surg
April 2024
Biotechnology, Faculty of Veterinary Medicine, Amol University of Special Modern Technologies, Aftab 24, Amol, Iran.
Avian polyomavirus (APV) infection causes various health problems in psittacine species, including death. The present study was conducted to investigate the prevalence of APV among psittacine birds in Iran. We also aimed to evaluate the impact of age, sex, species, season, and origin of the birds on the prevalence of APV.
View Article and Find Full Text PDFArch Virol
April 2024
School of Biological Sciences, The University of Hong Kong, Pok Fu Lam Road, Hong Kong, China.
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