Annual dynamics of the plasma sex steroid hormones of the Malaysian walking catfish Clarias batrachus (Linnaeus 1758)
Malaysia is one of the countries in Asia with higher scarcity of Clarias batrachus. Consequently, to arrive at better ways of handling the situation the reproductive endocrinology of the species was investigated. Testosterone (T), 11-ketotestosterone (11KT) and 17β-estradiol (E2) were the plasma sex...
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| Format: | Article |
| Language: | English |
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Academic Journals
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/43777/ http://psasir.upm.edu.my/id/eprint/43777/1/Annual%20dynamics%20of%20the%20plasma%20sex%20steroid%20hormones%20of%20the%20Malaysian%20Walking%20Catfish%20.pdf |
| _version_ | 1848850319959654400 |
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| author | Alkali, Argungu Lawali Christianus, Annie Nurul Amin, Sanker Mohammad Daud, Siti Khalijah Siraj, Siti Shapor |
| author_facet | Alkali, Argungu Lawali Christianus, Annie Nurul Amin, Sanker Mohammad Daud, Siti Khalijah Siraj, Siti Shapor |
| author_sort | Alkali, Argungu Lawali |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Malaysia is one of the countries in Asia with higher scarcity of Clarias batrachus. Consequently, to arrive at better ways of handling the situation the reproductive endocrinology of the species was investigated. Testosterone (T), 11-ketotestosterone (11KT) and 17β-estradiol (E2) were the plasma sex steroid hormones monitored monthly throughout the reproductive cycles. Several peak levels were observed in the annual profiles of all the steroid hormones, implying that C. batrachus is a non-seasonal breeder, signifying that the species could spawn several times during the reproductive cycle. Most of the scholars who earlier worked on the breeding of this fish concentrated on a particular period (May to August) assuming that was the only season successful induced breeding of the species could be achieved. The present study has enhanced the understanding of the reproduction of C. batrachus. It has provided a platform for the optimization of reproduction and breeding program of the species. |
| first_indexed | 2025-11-15T10:04:24Z |
| format | Article |
| id | upm-43777 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:04:24Z |
| publishDate | 2015 |
| publisher | Academic Journals |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-437772016-09-20T09:27:12Z http://psasir.upm.edu.my/id/eprint/43777/ Annual dynamics of the plasma sex steroid hormones of the Malaysian walking catfish Clarias batrachus (Linnaeus 1758) Alkali, Argungu Lawali Christianus, Annie Nurul Amin, Sanker Mohammad Daud, Siti Khalijah Siraj, Siti Shapor Malaysia is one of the countries in Asia with higher scarcity of Clarias batrachus. Consequently, to arrive at better ways of handling the situation the reproductive endocrinology of the species was investigated. Testosterone (T), 11-ketotestosterone (11KT) and 17β-estradiol (E2) were the plasma sex steroid hormones monitored monthly throughout the reproductive cycles. Several peak levels were observed in the annual profiles of all the steroid hormones, implying that C. batrachus is a non-seasonal breeder, signifying that the species could spawn several times during the reproductive cycle. Most of the scholars who earlier worked on the breeding of this fish concentrated on a particular period (May to August) assuming that was the only season successful induced breeding of the species could be achieved. The present study has enhanced the understanding of the reproduction of C. batrachus. It has provided a platform for the optimization of reproduction and breeding program of the species. Academic Journals 2015 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/43777/1/Annual%20dynamics%20of%20the%20plasma%20sex%20steroid%20hormones%20of%20the%20Malaysian%20Walking%20Catfish%20.pdf Alkali, Argungu Lawali and Christianus, Annie and Nurul Amin, Sanker Mohammad and Daud, Siti Khalijah and Siraj, Siti Shapor (2015) Annual dynamics of the plasma sex steroid hormones of the Malaysian walking catfish Clarias batrachus (Linnaeus 1758). Journal of Fisheries and Aquatic Science, 10 (1). pp. 24-34. ISSN 1816-4927; ESSN: 1996-0751 10.3923/jfas.2015.24.34 |
| spellingShingle | Alkali, Argungu Lawali Christianus, Annie Nurul Amin, Sanker Mohammad Daud, Siti Khalijah Siraj, Siti Shapor Annual dynamics of the plasma sex steroid hormones of the Malaysian walking catfish Clarias batrachus (Linnaeus 1758) |
| title | Annual dynamics of the plasma sex steroid hormones of the Malaysian walking catfish Clarias batrachus (Linnaeus 1758) |
| title_full | Annual dynamics of the plasma sex steroid hormones of the Malaysian walking catfish Clarias batrachus (Linnaeus 1758) |
| title_fullStr | Annual dynamics of the plasma sex steroid hormones of the Malaysian walking catfish Clarias batrachus (Linnaeus 1758) |
| title_full_unstemmed | Annual dynamics of the plasma sex steroid hormones of the Malaysian walking catfish Clarias batrachus (Linnaeus 1758) |
| title_short | Annual dynamics of the plasma sex steroid hormones of the Malaysian walking catfish Clarias batrachus (Linnaeus 1758) |
| title_sort | annual dynamics of the plasma sex steroid hormones of the malaysian walking catfish clarias batrachus (linnaeus 1758) |
| url | http://psasir.upm.edu.my/id/eprint/43777/ http://psasir.upm.edu.my/id/eprint/43777/ http://psasir.upm.edu.my/id/eprint/43777/1/Annual%20dynamics%20of%20the%20plasma%20sex%20steroid%20hormones%20of%20the%20Malaysian%20Walking%20Catfish%20.pdf |