Growth of heat-shock induced triploids of blue tilapia, Oreochromis aureus, reared in tanks and in ponds in Eastern Congo: feeding regimes and compensatory growth response of triploid females
In this study, triploids of Oreochromis aureus were obtained via the heat-shocking method. Triploid fishes were effectively sterile and predominantly female (80%). Diploid and triploid fishes were reared in tanks or ponds receiving organic manure. In tanks, the survival rate was 65.3% and 60.7% for...
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Language: | English |
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2001
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Online Access: | https://lirias.kuleuven.be/handle/123456789/178593 https://doi.org/10.1016/S0044-8486(00)00605-0 https://lirias.kuleuven.be/bitstream/123456789/178593/1//Byamungu+et+al._2001_Aquaculture_vol198_p109-122.pdf |
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ftunivleuven:oai:lirias.kuleuven.be:123456789/178593 2023-05-15T14:30:11+02:00 Growth of heat-shock induced triploids of blue tilapia, Oreochromis aureus, reared in tanks and in ponds in Eastern Congo: feeding regimes and compensatory growth response of triploid females Byamungu, N Darras, Veerle Kühn, Eduard 2001 https://lirias.kuleuven.be/handle/123456789/178593 https://doi.org/10.1016/S0044-8486(00)00605-0 https://lirias.kuleuven.be/bitstream/123456789/178593/1//Byamungu+et+al._2001_Aquaculture_vol198_p109-122.pdf en eng Aquaculture vol:198 issue:1-2 pages:109-122 https://lirias.kuleuven.be/handle/123456789/178593 0044-8486 doi:10.1016/S0044-8486(00)00605-0 https://lirias.kuleuven.be/bitstream/123456789/178593/1//Byamungu+et+al._2001_Aquaculture_vol198_p109-122.pdf 323611;intranet growth Orenchromis aureus heat shock diploids and triploids tanks and ponds feeding regimes compensatory growth response Salmo-Gairdneri Richardson Rainbow-Trout Oncorhynchus-Mykiss Salvelinus-Alpinus Sex Determination Thyroid-Function Arctic Charr Niloticus L Induction Fish Article IT 323611;Article 2001 ftunivleuven https://doi.org/10.1016/S0044-8486(00)00605-0 2015-12-22T15:35:34Z In this study, triploids of Oreochromis aureus were obtained via the heat-shocking method. Triploid fishes were effectively sterile and predominantly female (80%). Diploid and triploid fishes were reared in tanks or ponds receiving organic manure. In tanks, the survival rate was 65.3% and 60.7% for diploids and triploids, respectively. Triploids, mostly females, grew slower (P < 0.05) than diploids consisting of almost equal number of females and males. In ponds, a significant difference in body weight (P < 0.05) in favour of diploids was also recorded, but both lines grew slower than in tanks. In another tank trial, growth of diploid and triploid females was compared using a normal feeding regime (7 days/week of feeding) or a restricted feeding regime (5 days/week of feeding). A little difference in growth was recorded in favour of triploids under the normal feeding regime. However, a high significant difference (P < 0.001) between diploids (71.8 +/- 5.8 g) and triploids (118.5 +/- 8.9 g) was recorded under the restricted feeding regime. While the diploids under the restricted feeding regime grew slower than diploids under the normal feeding regime, no difference in growth between triploids in the normal and restricted feeding regime was observed. (C) 2001 Elsevier Science B.V. All rights reserved. status: published Article in Journal/Newspaper Arctic charr Arctic Salvelinus alpinus KU Leuven: Lirias Arctic Aquaculture 198 1-2 109 122 |
institution |
Open Polar |
collection |
KU Leuven: Lirias |
op_collection_id |
ftunivleuven |
language |
English |
topic |
growth Orenchromis aureus heat shock diploids and triploids tanks and ponds feeding regimes compensatory growth response Salmo-Gairdneri Richardson Rainbow-Trout Oncorhynchus-Mykiss Salvelinus-Alpinus Sex Determination Thyroid-Function Arctic Charr Niloticus L Induction Fish |
spellingShingle |
growth Orenchromis aureus heat shock diploids and triploids tanks and ponds feeding regimes compensatory growth response Salmo-Gairdneri Richardson Rainbow-Trout Oncorhynchus-Mykiss Salvelinus-Alpinus Sex Determination Thyroid-Function Arctic Charr Niloticus L Induction Fish Byamungu, N Darras, Veerle Kühn, Eduard Growth of heat-shock induced triploids of blue tilapia, Oreochromis aureus, reared in tanks and in ponds in Eastern Congo: feeding regimes and compensatory growth response of triploid females |
topic_facet |
growth Orenchromis aureus heat shock diploids and triploids tanks and ponds feeding regimes compensatory growth response Salmo-Gairdneri Richardson Rainbow-Trout Oncorhynchus-Mykiss Salvelinus-Alpinus Sex Determination Thyroid-Function Arctic Charr Niloticus L Induction Fish |
description |
In this study, triploids of Oreochromis aureus were obtained via the heat-shocking method. Triploid fishes were effectively sterile and predominantly female (80%). Diploid and triploid fishes were reared in tanks or ponds receiving organic manure. In tanks, the survival rate was 65.3% and 60.7% for diploids and triploids, respectively. Triploids, mostly females, grew slower (P < 0.05) than diploids consisting of almost equal number of females and males. In ponds, a significant difference in body weight (P < 0.05) in favour of diploids was also recorded, but both lines grew slower than in tanks. In another tank trial, growth of diploid and triploid females was compared using a normal feeding regime (7 days/week of feeding) or a restricted feeding regime (5 days/week of feeding). A little difference in growth was recorded in favour of triploids under the normal feeding regime. However, a high significant difference (P < 0.001) between diploids (71.8 +/- 5.8 g) and triploids (118.5 +/- 8.9 g) was recorded under the restricted feeding regime. While the diploids under the restricted feeding regime grew slower than diploids under the normal feeding regime, no difference in growth between triploids in the normal and restricted feeding regime was observed. (C) 2001 Elsevier Science B.V. All rights reserved. status: published |
format |
Article in Journal/Newspaper |
author |
Byamungu, N Darras, Veerle Kühn, Eduard |
author_facet |
Byamungu, N Darras, Veerle Kühn, Eduard |
author_sort |
Byamungu, N |
title |
Growth of heat-shock induced triploids of blue tilapia, Oreochromis aureus, reared in tanks and in ponds in Eastern Congo: feeding regimes and compensatory growth response of triploid females |
title_short |
Growth of heat-shock induced triploids of blue tilapia, Oreochromis aureus, reared in tanks and in ponds in Eastern Congo: feeding regimes and compensatory growth response of triploid females |
title_full |
Growth of heat-shock induced triploids of blue tilapia, Oreochromis aureus, reared in tanks and in ponds in Eastern Congo: feeding regimes and compensatory growth response of triploid females |
title_fullStr |
Growth of heat-shock induced triploids of blue tilapia, Oreochromis aureus, reared in tanks and in ponds in Eastern Congo: feeding regimes and compensatory growth response of triploid females |
title_full_unstemmed |
Growth of heat-shock induced triploids of blue tilapia, Oreochromis aureus, reared in tanks and in ponds in Eastern Congo: feeding regimes and compensatory growth response of triploid females |
title_sort |
growth of heat-shock induced triploids of blue tilapia, oreochromis aureus, reared in tanks and in ponds in eastern congo: feeding regimes and compensatory growth response of triploid females |
publishDate |
2001 |
url |
https://lirias.kuleuven.be/handle/123456789/178593 https://doi.org/10.1016/S0044-8486(00)00605-0 https://lirias.kuleuven.be/bitstream/123456789/178593/1//Byamungu+et+al._2001_Aquaculture_vol198_p109-122.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Salvelinus alpinus |
op_relation |
Aquaculture vol:198 issue:1-2 pages:109-122 https://lirias.kuleuven.be/handle/123456789/178593 0044-8486 doi:10.1016/S0044-8486(00)00605-0 https://lirias.kuleuven.be/bitstream/123456789/178593/1//Byamungu+et+al._2001_Aquaculture_vol198_p109-122.pdf |
op_rights |
323611;intranet |
op_doi |
https://doi.org/10.1016/S0044-8486(00)00605-0 |
container_title |
Aquaculture |
container_volume |
198 |
container_issue |
1-2 |
container_start_page |
109 |
op_container_end_page |
122 |
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1766304081978064896 |