Preliminary studies on the effects of light duration on the growth and performance of Clarias gariepinus fingerlings
The effects of light duration on the growth and performance of Clarias gariepinus fingerlings were investigated using artificial methods to simulate continuous day length and absolute darkness. The normal day length (12-H Light and 12-H Darkness) served as the control. Among some of the factors affected by the varying photoperiods there were body coloration, feeding efficiency, survival rate and Specific Growth Rate (SGR). There was notably no significant difference between the SGR of the 0-photoperiod culture and the control (P>0.05) but there was significant difference between the 0-photoperiod and the 24-H photoperiod experiment (P<0.05). The haematological profile analysed showed various degrees of changes in the blood parameters of fish cultured under different photoperiods. These changes however, did not show significant differences when subjected to statistical analysis
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Format: | conference_item biblioteca |
Language: | English |
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2003
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Subjects: | Biology, Aquaculture, Nigeria, blood cells, experimental culture, fingerlings, freshwater fish, growth, light effects, photoperiods, Clarias gariepinus, |
Online Access: | http://hdl.handle.net/1834/21329 |
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dig-aquadocs-1834-213292021-06-28T02:11:13Z Preliminary studies on the effects of light duration on the growth and performance of Clarias gariepinus fingerlings Odunze, F.C. Ibiwoye, T.I.I. Ladu, B.M.B. Iyolyoon, P.A. Biology Aquaculture Nigeria blood cells experimental culture fingerlings freshwater fish growth light effects photoperiods Clarias gariepinus The effects of light duration on the growth and performance of Clarias gariepinus fingerlings were investigated using artificial methods to simulate continuous day length and absolute darkness. The normal day length (12-H Light and 12-H Darkness) served as the control. Among some of the factors affected by the varying photoperiods there were body coloration, feeding efficiency, survival rate and Specific Growth Rate (SGR). There was notably no significant difference between the SGR of the 0-photoperiod culture and the control (P>0.05) but there was significant difference between the 0-photoperiod and the 24-H photoperiod experiment (P<0.05). The haematological profile analysed showed various degrees of changes in the blood parameters of fish cultured under different photoperiods. These changes however, did not show significant differences when subjected to statistical analysis 2021-06-24T15:54:08Z 2021-06-24T15:54:08Z 2003 conference_item http://hdl.handle.net/1834/21329 en http://fison.org.ng/ application/pdf application/pdf 189-194 http://aquaticcommons.org/id/eprint/3617 424 2011-09-29 17:03:30 3617 Fisheries Society of Nigeria |
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Biology Aquaculture Nigeria blood cells experimental culture fingerlings freshwater fish growth light effects photoperiods Clarias gariepinus Biology Aquaculture Nigeria blood cells experimental culture fingerlings freshwater fish growth light effects photoperiods Clarias gariepinus |
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Biology Aquaculture Nigeria blood cells experimental culture fingerlings freshwater fish growth light effects photoperiods Clarias gariepinus Biology Aquaculture Nigeria blood cells experimental culture fingerlings freshwater fish growth light effects photoperiods Clarias gariepinus Odunze, F.C. Ibiwoye, T.I.I. Ladu, B.M.B. Iyolyoon, P.A. Preliminary studies on the effects of light duration on the growth and performance of Clarias gariepinus fingerlings |
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The effects of light duration on the growth and performance of Clarias gariepinus fingerlings were investigated using artificial methods to simulate continuous day length and absolute darkness. The normal day length (12-H Light and 12-H Darkness) served as the control. Among some of the factors affected by the varying photoperiods there were body coloration, feeding efficiency, survival rate and Specific Growth Rate (SGR). There was notably no significant difference between the SGR of the 0-photoperiod culture and the control (P>0.05) but there was significant difference between the 0-photoperiod and the 24-H photoperiod experiment (P<0.05). The haematological profile analysed showed various degrees of changes in the blood parameters of fish cultured under different photoperiods. These changes however, did not show significant differences when subjected to statistical analysis |
format |
conference_item |
topic_facet |
Biology Aquaculture Nigeria blood cells experimental culture fingerlings freshwater fish growth light effects photoperiods Clarias gariepinus |
author |
Odunze, F.C. Ibiwoye, T.I.I. Ladu, B.M.B. Iyolyoon, P.A. |
author_facet |
Odunze, F.C. Ibiwoye, T.I.I. Ladu, B.M.B. Iyolyoon, P.A. |
author_sort |
Odunze, F.C. |
title |
Preliminary studies on the effects of light duration on the growth and performance of Clarias gariepinus fingerlings |
title_short |
Preliminary studies on the effects of light duration on the growth and performance of Clarias gariepinus fingerlings |
title_full |
Preliminary studies on the effects of light duration on the growth and performance of Clarias gariepinus fingerlings |
title_fullStr |
Preliminary studies on the effects of light duration on the growth and performance of Clarias gariepinus fingerlings |
title_full_unstemmed |
Preliminary studies on the effects of light duration on the growth and performance of Clarias gariepinus fingerlings |
title_sort |
preliminary studies on the effects of light duration on the growth and performance of clarias gariepinus fingerlings |
publishDate |
2003 |
url |
http://hdl.handle.net/1834/21329 |
work_keys_str_mv |
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