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Effects of different dietary carbohydrate levels on growth, feed utilization and body composition of juvenile grouper Epinephelus akaara
Year:
2016
Source of publication :
aquaculture (source)
Authors :
Harpaz, Sheenan
;
.
Volume :
459
Co-Authors:
Wang, J., Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
Li, X., Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
Han, T., Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
Yang, Y., Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
Jiang, Y., Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
Yang, M., Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
Xu, Y., Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
Harpaz, S., Department of Aquaculture, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, Israel
Facilitators :
From page:
143
To page:
147
(
Total pages:
5
)
Abstract:
Six isoproteic and isolipidic diets were designated to investigate the effects of dietary carbohydrate level (from 0% to 30%) on growth performance, feed utilization and body composition of juvenile grouper Epinephelus akaara (initially weighing, 7.79 ± 0.01 g/fish). Each diet was given to triplicate groups (20 juvenile grouper per cage) for 8-weeks. The weight gain (WG) and final body weight (FBW) were quadratically and linearly related to the increase of dietary carbohydrate level (P < 0.05). The weight gain (WG) values increased with increasing dietary carbohydrate from 0% to 6% while at higher levels WG values decreased. Feed conversion ratio (FCR), protein efficiency ratio (PER) and daily feed intake (DFI) were found to be not significantly related to the dietary carbohydrate (P > 0.05). As the level of dietary carbohydrate increased both quadratic and linear responses were observed on the intraperitoneal fat ratio (IPF). The whole body and muscle lipid content were relatively lower in fish fed the 30% dietary carbohydrate diet compared with the other treatments. Liver glycogen content generally increased with increasing dietary carbohydrate levels. Energy retention (ER) and lipid retention (LR) decreased significantly with increasing dietary carbohydrate levels. Based on second-order polynomial regression analysis of WG, this study suggests that 7.64% dietary carbohydrate level provides a maximum growth for juvenile E. akaara. Statement of relevance: The main aim of this study is to determine the effects of dietary carbohydrate levels on growth performance, feed utilization and body composition of juvenile E. akaara. The research outcomes will develop formulated diets for E. akaara and will have good potential of being commercialized. © 2016.Published by Elsevier B.V.
Note:
Related Files :
body composition
Carbohydrate level
Epinephelinae
Epinephelus akaara
Growth performance
Juvenile grouper Epinephelus akaara
Show More
Related Content
More details
DOI :
10.1016/j.aquaculture.2016.03.034
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
29882
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:50
Scientific Publication
Effects of different dietary carbohydrate levels on growth, feed utilization and body composition of juvenile grouper Epinephelus akaara
459
Wang, J., Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
Li, X., Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
Han, T., Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
Yang, Y., Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
Jiang, Y., Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
Yang, M., Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
Xu, Y., Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
Harpaz, S., Department of Aquaculture, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, Israel
Effects of different dietary carbohydrate levels on growth, feed utilization and body composition of juvenile grouper Epinephelus akaara
Six isoproteic and isolipidic diets were designated to investigate the effects of dietary carbohydrate level (from 0% to 30%) on growth performance, feed utilization and body composition of juvenile grouper Epinephelus akaara (initially weighing, 7.79 ± 0.01 g/fish). Each diet was given to triplicate groups (20 juvenile grouper per cage) for 8-weeks. The weight gain (WG) and final body weight (FBW) were quadratically and linearly related to the increase of dietary carbohydrate level (P < 0.05). The weight gain (WG) values increased with increasing dietary carbohydrate from 0% to 6% while at higher levels WG values decreased. Feed conversion ratio (FCR), protein efficiency ratio (PER) and daily feed intake (DFI) were found to be not significantly related to the dietary carbohydrate (P > 0.05). As the level of dietary carbohydrate increased both quadratic and linear responses were observed on the intraperitoneal fat ratio (IPF). The whole body and muscle lipid content were relatively lower in fish fed the 30% dietary carbohydrate diet compared with the other treatments. Liver glycogen content generally increased with increasing dietary carbohydrate levels. Energy retention (ER) and lipid retention (LR) decreased significantly with increasing dietary carbohydrate levels. Based on second-order polynomial regression analysis of WG, this study suggests that 7.64% dietary carbohydrate level provides a maximum growth for juvenile E. akaara. Statement of relevance: The main aim of this study is to determine the effects of dietary carbohydrate levels on growth performance, feed utilization and body composition of juvenile E. akaara. The research outcomes will develop formulated diets for E. akaara and will have good potential of being commercialized. © 2016.Published by Elsevier B.V.
Scientific Publication
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