Effects of seawater pH on survival, growth, energy budget and oxidative stress parameters of juvenile turbot Scophthalmus maximus
This study aimed to elucidate the influence of environment pH on survival, growth, energy allocation and oxidative damage of juvenile Scophthalmus maximus (19.89±0.25 g). Six pH treatments (6.3±0.2, 6.8±0.2, 7.3±0.2, 7.8±0.2, 8.3±0.2, 8.8±0.2) lasting for eight weeks were included. Measurements of s...
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ftoceandocs:oai:aquadocs.org:1834/40330 2023-05-15T18:15:41+02:00 Effects of seawater pH on survival, growth, energy budget and oxidative stress parameters of juvenile turbot Scophthalmus maximus Shuangyao, W. Zhiqiang, J. Mingguang, M. Shoukang, M. Yang, S. Youzhen, S. 2018 application/pdf 675-689 http://hdl.handle.net/1834/40330 en eng http://jifro.ir 1562-2916 http://hdl.handle.net/1834/40330 http://aquaticcommons.org/id/eprint/25998 18721 2018-10-19 17:52:04 25998 Iranian Fisheries Science Research Institute Aquaculture China Juvenile turbot Scophthalmus maximus pH Water Survival Growth Energy allocation Oxidative SODdamage Stress Parameters FCR SGR WGR CAT article TRUE 2018 ftoceandocs 2023-04-06T17:06:39Z This study aimed to elucidate the influence of environment pH on survival, growth, energy allocation and oxidative damage of juvenile Scophthalmus maximus (19.89±0.25 g). Six pH treatments (6.3±0.2, 6.8±0.2, 7.3±0.2, 7.8±0.2, 8.3±0.2, 8.8±0.2) lasting for eight weeks were included. Measurements of survival (SR), feed conversion ratio (FCR), specific growth rate (SGR), weight gain rate (WGR), energy allocation, liver superoxide dismutase activity (SOD), catalase activity (CAT), and malondialdehyde concentration (MDA) were done. Results show that SR did not vary from pH 6.3 to 7.8, but reduced then significantly (p<0.05); FCR rose remarkably (p<0.05) while SGR and WGR decreased pronouncedly (p<0.05). Most of the food energy was used in metabolism, followed by growth, feces loss and nitrogenous excretion. Energy deposited for growth showed a decreasing tendency when pH rose; while for metabolism showed a reverse trend. SOD showed insignificant difference from pH 6.3 to 7.8, but the activities then elevated obviously (p<0.05) though a slight decrease was found from pH 8.3 to 8.8 (p>0.05). CAT kept stable between pH 6.3 and 7.3, then sharply increased (p<0.05), but no significant differences were found between pH 8.3 and 8.8 (p>0.05). Subsequent decrease in MDA was found from pH 6.3 to 8.3 then the concentration smoothly increased. Overall, our results indicate that a pH in the range of 6.8 to 7.8 is recommended in the growth environment in cultivation of juvenile turbot. Article in Journal/Newspaper Scophthalmus maximus Turbot IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
institution |
Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
English |
topic |
Aquaculture China Juvenile turbot Scophthalmus maximus pH Water Survival Growth Energy allocation Oxidative SODdamage Stress Parameters FCR SGR WGR CAT |
spellingShingle |
Aquaculture China Juvenile turbot Scophthalmus maximus pH Water Survival Growth Energy allocation Oxidative SODdamage Stress Parameters FCR SGR WGR CAT Shuangyao, W. Zhiqiang, J. Mingguang, M. Shoukang, M. Yang, S. Youzhen, S. Effects of seawater pH on survival, growth, energy budget and oxidative stress parameters of juvenile turbot Scophthalmus maximus |
topic_facet |
Aquaculture China Juvenile turbot Scophthalmus maximus pH Water Survival Growth Energy allocation Oxidative SODdamage Stress Parameters FCR SGR WGR CAT |
description |
This study aimed to elucidate the influence of environment pH on survival, growth, energy allocation and oxidative damage of juvenile Scophthalmus maximus (19.89±0.25 g). Six pH treatments (6.3±0.2, 6.8±0.2, 7.3±0.2, 7.8±0.2, 8.3±0.2, 8.8±0.2) lasting for eight weeks were included. Measurements of survival (SR), feed conversion ratio (FCR), specific growth rate (SGR), weight gain rate (WGR), energy allocation, liver superoxide dismutase activity (SOD), catalase activity (CAT), and malondialdehyde concentration (MDA) were done. Results show that SR did not vary from pH 6.3 to 7.8, but reduced then significantly (p<0.05); FCR rose remarkably (p<0.05) while SGR and WGR decreased pronouncedly (p<0.05). Most of the food energy was used in metabolism, followed by growth, feces loss and nitrogenous excretion. Energy deposited for growth showed a decreasing tendency when pH rose; while for metabolism showed a reverse trend. SOD showed insignificant difference from pH 6.3 to 7.8, but the activities then elevated obviously (p<0.05) though a slight decrease was found from pH 8.3 to 8.8 (p>0.05). CAT kept stable between pH 6.3 and 7.3, then sharply increased (p<0.05), but no significant differences were found between pH 8.3 and 8.8 (p>0.05). Subsequent decrease in MDA was found from pH 6.3 to 8.3 then the concentration smoothly increased. Overall, our results indicate that a pH in the range of 6.8 to 7.8 is recommended in the growth environment in cultivation of juvenile turbot. |
format |
Article in Journal/Newspaper |
author |
Shuangyao, W. Zhiqiang, J. Mingguang, M. Shoukang, M. Yang, S. Youzhen, S. |
author_facet |
Shuangyao, W. Zhiqiang, J. Mingguang, M. Shoukang, M. Yang, S. Youzhen, S. |
author_sort |
Shuangyao, W. |
title |
Effects of seawater pH on survival, growth, energy budget and oxidative stress parameters of juvenile turbot Scophthalmus maximus |
title_short |
Effects of seawater pH on survival, growth, energy budget and oxidative stress parameters of juvenile turbot Scophthalmus maximus |
title_full |
Effects of seawater pH on survival, growth, energy budget and oxidative stress parameters of juvenile turbot Scophthalmus maximus |
title_fullStr |
Effects of seawater pH on survival, growth, energy budget and oxidative stress parameters of juvenile turbot Scophthalmus maximus |
title_full_unstemmed |
Effects of seawater pH on survival, growth, energy budget and oxidative stress parameters of juvenile turbot Scophthalmus maximus |
title_sort |
effects of seawater ph on survival, growth, energy budget and oxidative stress parameters of juvenile turbot scophthalmus maximus |
publishDate |
2018 |
url |
http://hdl.handle.net/1834/40330 |
genre |
Scophthalmus maximus Turbot |
genre_facet |
Scophthalmus maximus Turbot |
op_source |
http://aquaticcommons.org/id/eprint/25998 18721 2018-10-19 17:52:04 25998 Iranian Fisheries Science Research Institute |
op_relation |
http://jifro.ir 1562-2916 http://hdl.handle.net/1834/40330 |
_version_ |
1766188865373077504 |