Spawning behaviour and induced breeding of an estuarine catfish, Mystus gulio (Ham.)
Spawning behaviour of hormone induced estuarine catfish, Mystus gulio was observed in captive condition. Spawning activities that include pairing, chasing and resting, nudging, and twisting, started about 5 hours post injection and ended with release of eggs within 1-2 hours of courtship. Three different dosages of "ovaprim" (1 ml/kg, 1.5 ml/kg, and 2 ml/kg in a single dose) were used in induced breeding of M gulio. The latency period was less (6-7 hours) with the dose of 1.5 and 2 ml/kg, while it was more (7-8 hours) with that of 1 ml/kg. However, all females spawned successfully with each of three different dosages, without any significant differences in the rate of fertilization and hatching. Eggs under all hormone dosages hatched between 18-20 hours after spawning. The hatching rate with 1, 1.5, and 2 ml/kg varied from 71.3-72.7%, corresponding to the fertilization rate of 80.7-84.7%.
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Format: | article biblioteca |
Language: | English |
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2006
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Subjects: | Aquaculture, Biology, spawning behaviour, induced breeding, Mystus gulio, nona tengra, Bangladesh, India, |
Online Access: | http://hdl.handle.net/1834/34191 |
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dig-aquadocs-1834-341912021-07-12T02:16:22Z Spawning behaviour and induced breeding of an estuarine catfish, Mystus gulio (Ham.) Alam, M.J. Begum, M. Islam, M.A. Pal, H.K. Aquaculture Biology spawning behaviour induced breeding Mystus gulio nona tengra Bangladesh India Spawning behaviour of hormone induced estuarine catfish, Mystus gulio was observed in captive condition. Spawning activities that include pairing, chasing and resting, nudging, and twisting, started about 5 hours post injection and ended with release of eggs within 1-2 hours of courtship. Three different dosages of "ovaprim" (1 ml/kg, 1.5 ml/kg, and 2 ml/kg in a single dose) were used in induced breeding of M gulio. The latency period was less (6-7 hours) with the dose of 1.5 and 2 ml/kg, while it was more (7-8 hours) with that of 1 ml/kg. However, all females spawned successfully with each of three different dosages, without any significant differences in the rate of fertilization and hatching. Eggs under all hormone dosages hatched between 18-20 hours after spawning. The hatching rate with 1, 1.5, and 2 ml/kg varied from 71.3-72.7%, corresponding to the fertilization rate of 80.7-84.7%. 2021-06-24T17:35:42Z 2021-06-24T17:35:42Z 2006 article 1026-6690 http://hdl.handle.net/1834/34191 en application/pdf application/pdf 101-109 http://aquaticcommons.org/id/eprint/18871 12051 2015-11-26 12:37:13 18871 Bangladesh Fisheries Research Institute |
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Aquaculture Biology spawning behaviour induced breeding Mystus gulio nona tengra Bangladesh India Aquaculture Biology spawning behaviour induced breeding Mystus gulio nona tengra Bangladesh India |
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Aquaculture Biology spawning behaviour induced breeding Mystus gulio nona tengra Bangladesh India Aquaculture Biology spawning behaviour induced breeding Mystus gulio nona tengra Bangladesh India Alam, M.J. Begum, M. Islam, M.A. Pal, H.K. Spawning behaviour and induced breeding of an estuarine catfish, Mystus gulio (Ham.) |
description |
Spawning behaviour of hormone induced estuarine catfish, Mystus gulio was observed in captive condition. Spawning activities that include pairing, chasing and resting, nudging, and twisting, started about 5 hours post injection and ended with release of eggs within 1-2 hours of courtship. Three different dosages of "ovaprim" (1 ml/kg, 1.5 ml/kg, and 2 ml/kg in a single dose) were used in induced breeding of M gulio. The latency period was less (6-7 hours) with the dose of 1.5 and 2 ml/kg, while it was more (7-8 hours) with that of 1 ml/kg. However, all females spawned successfully with each of three different dosages, without any significant differences in the rate of fertilization and hatching. Eggs under all hormone dosages hatched between 18-20 hours after spawning. The hatching rate with 1, 1.5, and 2 ml/kg varied from 71.3-72.7%, corresponding to the fertilization rate of 80.7-84.7%. |
format |
article |
topic_facet |
Aquaculture Biology spawning behaviour induced breeding Mystus gulio nona tengra Bangladesh India |
author |
Alam, M.J. Begum, M. Islam, M.A. Pal, H.K. |
author_facet |
Alam, M.J. Begum, M. Islam, M.A. Pal, H.K. |
author_sort |
Alam, M.J. |
title |
Spawning behaviour and induced breeding of an estuarine catfish, Mystus gulio (Ham.) |
title_short |
Spawning behaviour and induced breeding of an estuarine catfish, Mystus gulio (Ham.) |
title_full |
Spawning behaviour and induced breeding of an estuarine catfish, Mystus gulio (Ham.) |
title_fullStr |
Spawning behaviour and induced breeding of an estuarine catfish, Mystus gulio (Ham.) |
title_full_unstemmed |
Spawning behaviour and induced breeding of an estuarine catfish, Mystus gulio (Ham.) |
title_sort |
spawning behaviour and induced breeding of an estuarine catfish, mystus gulio (ham.) |
publishDate |
2006 |
url |
http://hdl.handle.net/1834/34191 |
work_keys_str_mv |
AT alammj spawningbehaviourandinducedbreedingofanestuarinecatfishmystusgulioham AT begumm spawningbehaviourandinducedbreedingofanestuarinecatfishmystusgulioham AT islamma spawningbehaviourandinducedbreedingofanestuarinecatfishmystusgulioham AT palhk spawningbehaviourandinducedbreedingofanestuarinecatfishmystusgulioham |
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1756079192443715584 |