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Lee SH, Park SJ, Kwak D, Kim KT. Sudden death of an Indian peafowl (Pavo cristatus) at a zoo due to non-pigmented Serratia marcescens infection. J Vet Med Sci 2017; 79:2048-2051. [PMID: 29081475 PMCID: PMC5745189 DOI: 10.1292/jvms.17-0207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A 16-year-old female Indian peafowl (Pavo cristatus) died two days after
recognition of conjunctivitis in the right eye, anorexia and depression. Gross necropsy
revealed a thick pseudomembrane under the eyelid and hydropericardium. Histopathological
examination revealed hepatocellular necrosis, sinusoidal and vascular congestion and
infiltrated inflammatory cells. Infiltration by inflammatory cells was noted in the
epicardium. The lungs had mild interstitial pneumonia with the extensive congestion within
the capillaries of the air sacs. Tubular interstitial congestion and necrosis was noted in
the kidneys. Bacterial culture and nucleotide sequencing of the inflammatory specimens
identified the causative agent as Serratia marcescens, an uncommon
bacterium in birds. In summary, this study describes the sudden death of an Indian peafowl
due to S. marcescens infection, which is rarely seen in animals.
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Affiliation(s)
- Seung-Hun Lee
- College of Veterinary Medicine, Kyungpook National University, Bukgu, Daegu 41566, Korea.,National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Sang-Joon Park
- College of Veterinary Medicine, Kyungpook National University, Bukgu, Daegu 41566, Korea
| | - Dongmi Kwak
- College of Veterinary Medicine, Kyungpook National University, Bukgu, Daegu 41566, Korea
| | - Kyoo-Tae Kim
- Animal Health Center of Zoo Land, Daejeon O-World Theme Park, Junggu, Daejeon 35073, Korea
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Pegoraro N, Calado R, Duarte LN, Manco SC, Fernandes FJ, Polónia ARM, Cleary DFR, Gomes NCM. Molecular analysis of skin bacterial assemblages from codfish and pollock after dry-salted fish production. J Food Prot 2015; 78:983-9. [PMID: 25951394 DOI: 10.4315/0362-028x.jfp-14-390] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Dry-salted codfish and pollock are commercially important food products with a relatively long shelf life. To date, bacterial assemblages present in these products that are relevant for food safety have been monitored using only classical molecular and/or cultivation methods. The present study employed a rapid and accurate identification method involving PCR with denaturing gradient gel electrophoresis and pyrosequencing to characterize the bacterial assemblages in the skin of three closely related fishes: Gadus morhua, Gadus macrocephalus, and Theragra chalcogramma. This methodology can be crucial for timely identification of food spoilage, hazard analysis, and monitoring of critical control points during food production. Although all specimens were processed in the same factory, there were significant compositional differences in their skin bacterial communities. In general, the bacterial community was dominated by gram-negative species of the Gammaproteobacteria. Pyrosequencing yielded 90, 69, and 245 operational taxonomic units associated with G. morhua, G. macrocephalus, and T. chalcogramma, respectively. The most dominant operational taxonomic units were assigned in order to Pseudomonas sp., Serratia marcescens, Salinisphaera sp., and Psychrobacter pulmonis. Spoilage and pathogenic bacterial groups were detected in all the studied salted gadoid samples.
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Affiliation(s)
- Natália Pegoraro
- Department of Biology, CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Ricardo Calado
- Department of Biology, CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Letícia N Duarte
- Department of Biology, CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Sónia C Manco
- Department of Biology, CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Fernando J Fernandes
- Department of Biology, CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Ana R M Polónia
- Department of Biology, CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Daniel F R Cleary
- Department of Biology, CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Newton C M Gomes
- Department of Biology, CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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