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beak
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- Author:
- Roy, Parimal; Dhillon, A.S.; Lauerman, Lloyd; Shivaprasad, H.L.
- Source:
- Avian diseases 2003 v.47 no.1 pp. 218-222
- ISSN:
- 0005-2086
- Subject:
- Aspergillus; Chicken anemia virus; DNA; DNA primers; Escherichia coli; Escherichia infections; Pasteurella; Pigeon circovirus; Salmonella; beak; bird diseases; bursa of Fabricius; candidiasis; capillariasis; histopathology; liver; mixed infection; pigeons; polymerase chain reaction; spleen; transmission electron microscopy; virion; viruses
- Abstract:
- ... Pigeon circovirus was identified by polymerase chain reaction (PCR) in young pigeons belonging to 12 different lofts. Viral DNA was extracted from formalin-fixed, paraffin-imbedded tissues containing primarily bursa and occasionally liver and spleen with a commercial kit. PCR primers were selected from a published sequence for columbid circovirus and evaluated in a PCR assay. The histopathologic e ...
- DOI:
- 10.1637/0005-2086(2003)047[0218:DOPCBP]2.0.CO;2
- https://doi.org/10.1637/0005-2086(2003)047[0218:DOPCBP]2.0.CO;2
- Author:
- Monroe, A.D.; Latimer, K.S.; Pesti, G.M.; Bakalli, R.I.
- Source:
- Avian diseases 2003 v.47 no.4 pp. 1393-1398
- ISSN:
- 0005-2086
- Subject:
- batteries; battery cages; beak; bird diseases; blood proteins; broiler chickens; chicks; coprophagy; corn; corn gluten meal; diet; environmental factors; gelatin; heterophils; histology; inflammation; nose; tryptophan
- Abstract:
- ... The purpose of this experiment was to characterize a lesion of the rhamphotheca associated with tryptophan (TRP) deficiency, search for other histological abnormalities, and determine whether bird size and housing conditions are contributing factors to these lesions. Day-old broiler chicks (Ross × Ross 308) were placed in either floor pens with fresh pine shavings or Petersime battery brooders wit ...
- DOI:
- 10.1637/7039
- https://doi.org/10.1637/7039
- Author:
- Owen, H.C.; Doneley, R.J.T.; Schmidt, R.E.; Patterson-Kane, J.C.
- Source:
- Avian pathology 2007 v.36 no.6 pp. 499-502
- ISSN:
- 0307-9457
- Subject:
- budgerigars; ornamental birds; neoplasms; bird diseases; beak; hypertrophy; histopathology; cell differentiation; epithelial cells; keratinization; new host records
- Abstract:
- ... This report describes a keratoacanthoma causing abnormal maxillary beak growth in a 6-year-old male budgerigar (Melopsittacus undulates). Although the bird was still capable of eating, it had recently been demonstrating signs of respiratory distress and euthanasia was recommended. On histological examination, the neoplasm was dramatically effacing the normal structure of the maxilla and infiltrati ...
- DOI:
- 10.1080/03079450701697275
- PubMed:
- 17994330
- https://doi.org/10.1080/03079450701697275
- Author:
- C. Van Hemert; A. G. Armién; J. E. Blake; C. M. Handel; T. M. O’Hara
- Source:
- Veterinary pathology v.50 no.3 pp. 500-513
- ISSN:
- 1544-2217
- Subject:
- Poecile atricapillus; adults; alopecia; animal pathology; beak; bird diseases; claws; epithelium; epizootic diseases; etiology; fungi; histology; histopathology; hyperkeratosis; hyperplasia; keratin; keratinization; mandible (bone); wild birds; Alaska
- Abstract:
- ... An epizootic of beak abnormalities (avian keratin disorder) was recently detected among wild birds in Alaska. Here we describe the gross, histologic, and ultrastructural features of the disease in 30 affected adult black-capped chickadees (Poecile atricapillus). Grossly, there was elongation of the rhamphotheca, with varying degrees of lateral deviation, crossing, and gapping between the upper and ...
- DOI:
- 10.1177/0300985812469637
- PubMed:
- 23399850
- PubMed Central:
- PMC4445976
- https://doi.org/10.1177/0300985812469637
- Author:
- Circella Elena; Legretto Marilisa; Pugliese Nicola; Caroli Anna; Bozzo Giancarlo; Accogli Gianluca; Lavazza Antonio; Camarda Antonio
- Source:
- Avian diseases 2014 v.58 no.3 pp. 482-487
- ISSN:
- 1938-4351
- Subject:
- beak; sequence analysis; immunosuppression; Circovirus; flocks; Psittaciformes; amino acids; viruses; genes; bird diseases; Erythrura gouldiae; birds
- Abstract:
- ... Beak and feather disease virus (BFDV) is a member of the genus Circovirus and causes psittacine beak and feather disease (PBFD) in Psittaciformes. PBFD is a severe disease generally characterized by immunodeficiency and beak and feather disorders. Although Circovirus spp. have been detected in several nonpsittacine species, little is known about the symptoms and the disease associated with this in ...
- DOI:
- 10.1637/10745-121113Case.1
- https://doi.org/10.1637/10745-121113Case.1
- Author:
- Jingjiao Ma; Ye Tian; Min Zhang; Weili Wang; Yujie Li; Fulin Tian; Yuqiang Cheng; Yaxian Yan; Jianhe Sun
- Source:
- Transboundary and emerging diseases 2019 v.66 no.5 pp. 1827-1833
- ISSN:
- 1865-1674
- Subject:
- Beak and feather disease virus; beak; bird diseases; breeding; budgerigars; emerging diseases; feces; genes; genotype; monitoring; phylogeny; China
- Abstract:
- ... Psittacine beak and feather disease (PBFD) is a common disease in psittacine bird that caused by beak and feather disease virus (BFDV). BFDV is widely spread and threatening psittacine birds worldwide. However, the BFDV infection in China remains largely unknown. In this study, a surveillance study of BFDV was conducted in three budgerigar breeding facilities, which showed that 66.6% of collected ...
- DOI:
- 10.1111/tbed.13274
- https://doi.org/10.1111/tbed.13274
- Author:
- Susan Cockerham; Becky Lee; Rachael A. Orben; Robert M. Suryan; Leigh G. Torres; Pete Warzybok; Russell Bradley; Jaime Jahncke; Hillary S. Young; Cleber Ouverney; Scott A. Shaffer
- Source:
- Microbial ecology 2019 v.78 no.3 pp. 665-676
- ISSN:
- 0095-3628
- Subject:
- Actinobacteria; Bacteroidetes; DNA; Firmicutes; Larus; Proteobacteria; bacteria; beak; bird diseases; breeding; cloaca; coasts; feet; human population; immunity; metabolism; microbial communities; microbiome; mortality; ribosomal RNA; seabirds; sequence analysis; surveys; virulent strains; California; Oregon
- Abstract:
- ... Avian species host diverse communities of microorganisms which have important roles in the life of birds, including increased metabolism, protection from disease, and immune system development. Along with high human populations and a diversity of human uses of coastal zones, anthropogenic food sources are becoming increasingly available to some species, including gulls. Anthropogenic associations ...
- DOI:
- 10.1007/s00248-019-01352-4
- https://doi.org/10.1007/s00248-019-01352-4
- Author:
- Gisela González-Hein; Isabel Aguirre Gil; Rodolfo Sanchez; Bernardo Huaracan
- Source:
- Journal of avian medicine and surgery 2019 v.33 no.2 pp. 141-149
- ISSN:
- 1082-6742
- Subject:
- Aves polyomavirus 1; Beak and feather disease virus; beak; bird diseases; birds; feathers; genes; genetic variation; hosts; polymerase chain reaction; Chile
- Abstract:
- ... Avian polyomavirus disease and psittacine beak and feather disease (PBFD) are both contagious viral diseases in psittacine birds with similar clinical manifestations and characterized by abnormal feathers. To determine the prevalence of Aves polyomavirus 1 (APyV) and beak and feather disease virus (BFDV) in captive, exotic psittacine birds in Chile, feathers from 250 psittacine birds, representing ...
- DOI:
- 10.1647/2018-349
- https://doi.org/10.1647/2018-349
- Author:
- Shilong Chen; Tiehui Fang; Shifeng Xiao; Fengqiang Lin; Xiaoxia Cheng; Shao Wang; Xiaoli Zhu; Xiuqin Chen; Min Zheng; Muhammad Munir; Meiqing Huang; Fusong Yu; Shaoying Chen
- Source:
- Microbial pathogenesis 2020 v.138 pp. 103816
- ISSN:
- 0882-4010
- Subject:
- Anseriform dependoparvovirus 1; Toll-like receptor 1; Toll-like receptor 2; Toll-like receptor 3; Toll-like receptor 4; Toll-like receptor 5; Toll-like receptor 7; beak; bird diseases; double-stranded RNA; ducklings; dwarfing; fibroblasts; gene expression; gene expression regulation; genes; genomics; immune response; industry; innate immunity; interferon-beta; messenger RNA; pathogen-associated molecular patterns; pathogenesis; single-stranded DNA; viruses; waterfowl
- Abstract:
- ... Duckling short beak and dwarfism syndrome virus (SBDSV), a newly identified goose parvovirus, causes devastating disease in domestic waterfowl and considerable economic losses to Chinese waterfowl industry. The molecular pathogenesis of SBDSV infection, nature and dynamics of host immune responses against SBDSV infection remained elusive. In this study, we systematically explored the relative mRNA ...
- DOI:
- 10.1016/j.micpath.2019.103816
- https://doi.org/10.1016/j.micpath.2019.103816