A case of natural co-infection of Tilapia Lake Virus and Aeromonas veronii in a Malaysian red hybrid tilapia (Oreochromis niloticus × O. mossambicus) farm experiencing high mortality
This paper reports a case of natural co-infection of Tilapia Lake Virus (TiLV) and Aeromonas veronii in a Malaysian red hybrid tilapia (Oreochromis niloticus × O. mossambicus) farm. In May 2017, a tilapia farm operator reported a mass mortality among cultured red hybrid tilapia juveniles, approximat...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/54470/1/A%20case%20of%20natural%20co-infection%20of%20Tilapia%20Lake%20Virus%20.pdf |
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| author | Azmai, Mohammad Noor Amal Koh, Chik Boon Mohd Yaakob, Nurliyana Suhaiba, M. S. Z., Nor Amalina Santha, Silvaraj K.P., Diyana Nadhirah Yusof, Mohd Termizi Md Yasin, Ina Salwany Saad, Mohd Zamri |
| author_facet | Azmai, Mohammad Noor Amal Koh, Chik Boon Mohd Yaakob, Nurliyana Suhaiba, M. S. Z., Nor Amalina Santha, Silvaraj K.P., Diyana Nadhirah Yusof, Mohd Termizi Md Yasin, Ina Salwany Saad, Mohd Zamri |
| author_sort | Azmai, Mohammad Noor Amal |
| collection | UPM |
| description | This paper reports a case of natural co-infection of Tilapia Lake Virus (TiLV) and Aeromonas veronii in a Malaysian red hybrid tilapia (Oreochromis niloticus × O. mossambicus) farm. In May 2017, a tilapia farm operator reported a mass mortality among cultured red hybrid tilapia juveniles, approximately 45 days after introduction into earthen ponds. Affected fish showed lethargy, loss of appetite, swim near the pond edge, pale and isolated from schooling group. There were skin redness and haemorrhages, particularly at the operculum area and at the base of dorsal, caudal and anal fins. Histopathological examinations revealed swollen hepatocytes, haemorrhagic spleens and perivascular cuffing consisted of mononuclear cells in the brains. PCR and sequence analyses confirmed the presence of TiLV and A. veronii in the diseased fish. Phylogenetic tree revealed that Malaysian's TiLV strain was more closely related with the virus isolated in Israel than in Egypt or Thailand, while Malaysian's A. veronii strain 5L was closely related with strains from China. TiLV infection is a significant threat to global tilapia industry. However, synergistic co-infection of TiLV and other bacterial might aggravate the problem. |
| first_indexed | 2024-03-06T09:20:46Z |
| format | Article |
| id | upm.eprints-54470 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:20:46Z |
| publishDate | 2018 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-544702020-02-20T08:02:13Z http://psasir.upm.edu.my/id/eprint/54470/ A case of natural co-infection of Tilapia Lake Virus and Aeromonas veronii in a Malaysian red hybrid tilapia (Oreochromis niloticus × O. mossambicus) farm experiencing high mortality Azmai, Mohammad Noor Amal Koh, Chik Boon Mohd Yaakob, Nurliyana Suhaiba, M. S. Z., Nor Amalina Santha, Silvaraj K.P., Diyana Nadhirah Yusof, Mohd Termizi Md Yasin, Ina Salwany Saad, Mohd Zamri This paper reports a case of natural co-infection of Tilapia Lake Virus (TiLV) and Aeromonas veronii in a Malaysian red hybrid tilapia (Oreochromis niloticus × O. mossambicus) farm. In May 2017, a tilapia farm operator reported a mass mortality among cultured red hybrid tilapia juveniles, approximately 45 days after introduction into earthen ponds. Affected fish showed lethargy, loss of appetite, swim near the pond edge, pale and isolated from schooling group. There were skin redness and haemorrhages, particularly at the operculum area and at the base of dorsal, caudal and anal fins. Histopathological examinations revealed swollen hepatocytes, haemorrhagic spleens and perivascular cuffing consisted of mononuclear cells in the brains. PCR and sequence analyses confirmed the presence of TiLV and A. veronii in the diseased fish. Phylogenetic tree revealed that Malaysian's TiLV strain was more closely related with the virus isolated in Israel than in Egypt or Thailand, while Malaysian's A. veronii strain 5L was closely related with strains from China. TiLV infection is a significant threat to global tilapia industry. However, synergistic co-infection of TiLV and other bacterial might aggravate the problem. Elsevier 2018-02 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/54470/1/A%20case%20of%20natural%20co-infection%20of%20Tilapia%20Lake%20Virus%20.pdf Azmai, Mohammad Noor Amal and Koh, Chik Boon and Mohd Yaakob, Nurliyana and Suhaiba, M. S. and Z., Nor Amalina and Santha, Silvaraj and K.P., Diyana Nadhirah and Yusof, Mohd Termizi and Md Yasin, Ina Salwany and Saad, Mohd Zamri (2018) A case of natural co-infection of Tilapia Lake Virus and Aeromonas veronii in a Malaysian red hybrid tilapia (Oreochromis niloticus × O. mossambicus) farm experiencing high mortality. Aquaculture, 485. pp. 12-16. ISSN 0044-8486; ESSN: 1873-5622 https://www.sciencedirect.com/science/article/pii/S004484861731390X 10.1016/j.aquaculture.2017.11.019 |
| spellingShingle | Azmai, Mohammad Noor Amal Koh, Chik Boon Mohd Yaakob, Nurliyana Suhaiba, M. S. Z., Nor Amalina Santha, Silvaraj K.P., Diyana Nadhirah Yusof, Mohd Termizi Md Yasin, Ina Salwany Saad, Mohd Zamri A case of natural co-infection of Tilapia Lake Virus and Aeromonas veronii in a Malaysian red hybrid tilapia (Oreochromis niloticus × O. mossambicus) farm experiencing high mortality |
| title | A case of natural co-infection of Tilapia Lake Virus and Aeromonas veronii in a Malaysian red hybrid tilapia (Oreochromis niloticus × O. mossambicus) farm experiencing high mortality |
| title_full | A case of natural co-infection of Tilapia Lake Virus and Aeromonas veronii in a Malaysian red hybrid tilapia (Oreochromis niloticus × O. mossambicus) farm experiencing high mortality |
| title_fullStr | A case of natural co-infection of Tilapia Lake Virus and Aeromonas veronii in a Malaysian red hybrid tilapia (Oreochromis niloticus × O. mossambicus) farm experiencing high mortality |
| title_full_unstemmed | A case of natural co-infection of Tilapia Lake Virus and Aeromonas veronii in a Malaysian red hybrid tilapia (Oreochromis niloticus × O. mossambicus) farm experiencing high mortality |
| title_short | A case of natural co-infection of Tilapia Lake Virus and Aeromonas veronii in a Malaysian red hybrid tilapia (Oreochromis niloticus × O. mossambicus) farm experiencing high mortality |
| title_sort | case of natural co infection of tilapia lake virus and aeromonas veronii in a malaysian red hybrid tilapia oreochromis niloticus o mossambicus farm experiencing high mortality |
| url | http://psasir.upm.edu.my/id/eprint/54470/1/A%20case%20of%20natural%20co-infection%20of%20Tilapia%20Lake%20Virus%20.pdf |
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