Retrospective identification of bacterial depository revealed that Streptococcus iniae was responsible for some of the streptococcosis cases in cultured red tilapia in Malaysia since 2006
This paper reports the identification of Streptococcus iniae from a large collection of isolates previously identified as Streptococcus sp., Lactococcus lactis subsp. lactis or Leuconostoc sp. A total of 204 bacterial isolates recovered either from the brain, eye, or kidney of red tilapias in previo...
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| Format: | Article |
| Language: | English |
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Universiti Putra Malaysia Press
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/36936/ http://psasir.upm.edu.my/id/eprint/36936/1/10%20JTAS-1967-2020.pdf |
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| author | Mohamad Ali, Siti Hawa Mohammad Ridzuan, Mohd Syafiq Abdullah, Siti Zahrah Mansor, Nur Nazifah Nawi, Mohd Firdaus Saad, Mohd Zamri Azmai, Mohammad Noor Amal |
| author_facet | Mohamad Ali, Siti Hawa Mohammad Ridzuan, Mohd Syafiq Abdullah, Siti Zahrah Mansor, Nur Nazifah Nawi, Mohd Firdaus Saad, Mohd Zamri Azmai, Mohammad Noor Amal |
| author_sort | Mohamad Ali, Siti Hawa |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This paper reports the identification of Streptococcus iniae from a large collection of isolates previously identified as Streptococcus sp., Lactococcus lactis subsp. lactis or Leuconostoc sp. A total of 204 bacterial isolates recovered either from the brain, eye, or kidney of red tilapias in previous disease outbreaks and disease monitoring in Malaysia from 2006 to 2008 were used. PCR identification revealed that 34 (16.7%) of the isolates were confirmed as S. iniae. Our records showed that S. iniae-infected fish exhibited lethargy, exophthalmia, and erratic swimming patterns. Pathological lesions including generalised congestion of the internal organs, splenic infarction with soft and oedematous brain. Histopathological examination revealed multifocal encephalitis as one of the major findings. However, 44% and 26.5% of the tilapias from which S. iniae was isolated did not manifest any clinical sign and pathological lesion, respectively. This study revealed that S. iniae was responsible for streptococcosis in cultured red tilapia in Malaysia since 2006. |
| first_indexed | 2025-11-15T09:35:01Z |
| format | Article |
| id | upm-36936 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:35:01Z |
| publishDate | 2020 |
| publisher | Universiti Putra Malaysia Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-369362020-06-16T06:41:26Z http://psasir.upm.edu.my/id/eprint/36936/ Retrospective identification of bacterial depository revealed that Streptococcus iniae was responsible for some of the streptococcosis cases in cultured red tilapia in Malaysia since 2006 Mohamad Ali, Siti Hawa Mohammad Ridzuan, Mohd Syafiq Abdullah, Siti Zahrah Mansor, Nur Nazifah Nawi, Mohd Firdaus Saad, Mohd Zamri Azmai, Mohammad Noor Amal This paper reports the identification of Streptococcus iniae from a large collection of isolates previously identified as Streptococcus sp., Lactococcus lactis subsp. lactis or Leuconostoc sp. A total of 204 bacterial isolates recovered either from the brain, eye, or kidney of red tilapias in previous disease outbreaks and disease monitoring in Malaysia from 2006 to 2008 were used. PCR identification revealed that 34 (16.7%) of the isolates were confirmed as S. iniae. Our records showed that S. iniae-infected fish exhibited lethargy, exophthalmia, and erratic swimming patterns. Pathological lesions including generalised congestion of the internal organs, splenic infarction with soft and oedematous brain. Histopathological examination revealed multifocal encephalitis as one of the major findings. However, 44% and 26.5% of the tilapias from which S. iniae was isolated did not manifest any clinical sign and pathological lesion, respectively. This study revealed that S. iniae was responsible for streptococcosis in cultured red tilapia in Malaysia since 2006. Universiti Putra Malaysia Press 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/36936/1/10%20JTAS-1967-2020.pdf Mohamad Ali, Siti Hawa and Mohammad Ridzuan, Mohd Syafiq and Abdullah, Siti Zahrah and Mansor, Nur Nazifah and Nawi, Mohd Firdaus and Saad, Mohd Zamri and Azmai, Mohammad Noor Amal (2020) Retrospective identification of bacterial depository revealed that Streptococcus iniae was responsible for some of the streptococcosis cases in cultured red tilapia in Malaysia since 2006. Pertanika Journal of Tropical Agricultural Science, 43 (2). pp. 231-238. ISSN 1511-3701; ESSN: 2231-8542 http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JTAS%20Vol.%2043%20(2)%20May.%202020/10%20JTAS-1967-2020.pdf |
| spellingShingle | Mohamad Ali, Siti Hawa Mohammad Ridzuan, Mohd Syafiq Abdullah, Siti Zahrah Mansor, Nur Nazifah Nawi, Mohd Firdaus Saad, Mohd Zamri Azmai, Mohammad Noor Amal Retrospective identification of bacterial depository revealed that Streptococcus iniae was responsible for some of the streptococcosis cases in cultured red tilapia in Malaysia since 2006 |
| title | Retrospective identification of bacterial depository revealed that Streptococcus iniae was responsible for some of the streptococcosis cases in cultured red tilapia in Malaysia since 2006 |
| title_full | Retrospective identification of bacterial depository revealed that Streptococcus iniae was responsible for some of the streptococcosis cases in cultured red tilapia in Malaysia since 2006 |
| title_fullStr | Retrospective identification of bacterial depository revealed that Streptococcus iniae was responsible for some of the streptococcosis cases in cultured red tilapia in Malaysia since 2006 |
| title_full_unstemmed | Retrospective identification of bacterial depository revealed that Streptococcus iniae was responsible for some of the streptococcosis cases in cultured red tilapia in Malaysia since 2006 |
| title_short | Retrospective identification of bacterial depository revealed that Streptococcus iniae was responsible for some of the streptococcosis cases in cultured red tilapia in Malaysia since 2006 |
| title_sort | retrospective identification of bacterial depository revealed that streptococcus iniae was responsible for some of the streptococcosis cases in cultured red tilapia in malaysia since 2006 |
| url | http://psasir.upm.edu.my/id/eprint/36936/ http://psasir.upm.edu.my/id/eprint/36936/ http://psasir.upm.edu.my/id/eprint/36936/1/10%20JTAS-1967-2020.pdf |