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Effect of dietary lipid level on growth, feed utilization and body composition of juvenile giant croaker Nibea japonica

Five isoproteic diets were designated to investigate the effects of dietary lipid levels (from 5% to 21%) on the growth performance, body composition and nutrition utilization of juvenile giant croaker, Nibea japonica (initially weighing, 6.67±0.18g per fish). Each diet was fed to triplicate tanks (... Full description

Journal Title: Aquaculture 20 October 2014, Vol.434, pp.145-150
Main Author: Han, Tao
Other Authors: Li, Xinyu , Wang, Jiteng , Hu, Shuixin , Jiang, Yudong , Zhong, Xiaodong
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0044-8486 ; DOI: 10.1016/j.aquaculture.2014.08.012
Link: http://dx.doi.org/10.1016/j.aquaculture.2014.08.012
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recordid: sciversesciencedirect_elsevierS0044-8486(14)00404-9
title: Effect of dietary lipid level on growth, feed utilization and body composition of juvenile giant croaker Nibea japonica
format: Article
creator:
  • Han, Tao
  • Li, Xinyu
  • Wang, Jiteng
  • Hu, Shuixin
  • Jiang, Yudong
  • Zhong, Xiaodong
subjects:
  • Giant Croaker Nibea Japonica
  • Lipid Level
  • Growth
  • Body Composition
ispartof: Aquaculture, 20 October 2014, Vol.434, pp.145-150
description: Five isoproteic diets were designated to investigate the effects of dietary lipid levels (from 5% to 21%) on the growth performance, body composition and nutrition utilization of juvenile giant croaker, Nibea japonica (initially weighing, 6.67±0.18g per fish). Each diet was fed to triplicate tanks (15 fish per tank) for 8-weeks. Fish fed diets with low lipid levels (5–13%) showed significantly higher weight gain (WG) and special growth ratio (SGR) than those fed high lipid diets (17–21%) (P
language: eng
source:
identifier: ISSN: 0044-8486 ; DOI: 10.1016/j.aquaculture.2014.08.012
fulltext: fulltext
issn:
  • 00448486
  • 0044-8486
url: Link


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titleEffect of dietary lipid level on growth, feed utilization and body composition of juvenile giant croaker Nibea japonica
creatorHan, Tao ; Li, Xinyu ; Wang, Jiteng ; Hu, Shuixin ; Jiang, Yudong ; Zhong, Xiaodong
ispartofAquaculture, 20 October 2014, Vol.434, pp.145-150
identifierISSN: 0044-8486 ; DOI: 10.1016/j.aquaculture.2014.08.012
subjectGiant Croaker Nibea Japonica ; Lipid Level ; Growth ; Body Composition
descriptionFive isoproteic diets were designated to investigate the effects of dietary lipid levels (from 5% to 21%) on the growth performance, body composition and nutrition utilization of juvenile giant croaker, Nibea japonica (initially weighing, 6.67±0.18g per fish). Each diet was fed to triplicate tanks (15 fish per tank) for 8-weeks. Fish fed diets with low lipid levels (5–13%) showed significantly higher weight gain (WG) and special growth ratio (SGR) than those fed high lipid diets (17–21%) (P<0.05). A decreased trend of feed intake (FI) and daily feed intake (DFI) was observed in Nibea japonica fed diets with lipid level from 5% to 21%. Diets with 9–13% lipid level could improve the protein utilization in this species. Fish fed diets with 5% and 9% lipid level had significantly lower viscerosomatic index (VSI), hepatosomatic index (HSI) and intraperitoneal fat ratio (IPF) than those fed with high lipid diets (13–21%) (P<0.05). Fish fed diet with lowest lipid level showed significantly lower whole body lipid level than other treatments (P<0.05). The liver lipid content had a trend to increase with dietary lipid level increased (P<0.05), while liver protein and moisture level decreased with an increase in dietary lipid level (P<0.05). Based on the second order polynomial regression analysis of WG, this study suggested that 8.22% dietary lipid level was appropriated for N. japonica. •8.22% dietary lipid level was appropriated for Nibea japonica.•9–13% dietary lipid level could improve the protein utilization.•13–21% dietary lipid led to a lipid accumulation in visceral organs.
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titleEffect of dietary lipid level on growth, feed utilization and body composition of juvenile giant croaker Nibea japonica
descriptionFive isoproteic diets were designated to investigate the effects of dietary lipid levels (from 5% to 21%) on the growth performance, body composition and nutrition utilization of juvenile giant croaker, Nibea japonica (initially weighing, 6.67±0.18g per fish). Each diet was fed to triplicate tanks (15 fish per tank) for 8-weeks. Fish fed diets with low lipid levels (5–13%) showed significantly higher weight gain (WG) and special growth ratio (SGR) than those fed high lipid diets (17–21%) (P<0.05). A decreased trend of feed intake (FI) and daily feed intake (DFI) was observed in Nibea japonica fed diets with lipid level from 5% to 21%. Diets with 9–13% lipid level could improve the protein utilization in this species. Fish fed diets with 5% and 9% lipid level had significantly lower viscerosomatic index (VSI), hepatosomatic index (HSI) and intraperitoneal fat ratio (IPF) than those fed with high lipid diets (13–21%) (P<0.05). Fish fed diet with lowest lipid level showed significantly lower whole body lipid level than other treatments (P<0.05). The liver lipid content had a trend to increase with dietary lipid level increased (P<0.05), while liver protein and moisture level decreased with an increase in dietary lipid level (P<0.05). Based on the second order polynomial regression analysis of WG, this study suggested that 8.22% dietary lipid level was appropriated for N. japonica. •8.22% dietary lipid level was appropriated for Nibea japonica.•9–13% dietary lipid level could improve the protein utilization.•13–21% dietary lipid led to a lipid accumulation in visceral organs.
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abstractFive isoproteic diets were designated to investigate the effects of dietary lipid levels (from 5% to 21%) on the growth performance, body composition and nutrition utilization of juvenile giant croaker, Nibea japonica (initially weighing, 6.67±0.18g per fish). Each diet was fed to triplicate tanks (15 fish per tank) for 8-weeks. Fish fed diets with low lipid levels (5–13%) showed significantly higher weight gain (WG) and special growth ratio (SGR) than those fed high lipid diets (17–21%) (P<0.05). A decreased trend of feed intake (FI) and daily feed intake (DFI) was observed in Nibea japonica fed diets with lipid level from 5% to 21%. Diets with 9–13% lipid level could improve the protein utilization in this species. Fish fed diets with 5% and 9% lipid level had significantly lower viscerosomatic index (VSI), hepatosomatic index (HSI) and intraperitoneal fat ratio (IPF) than those fed with high lipid diets (13–21%) (P<0.05). Fish fed diet with lowest lipid level showed significantly lower whole body lipid level than other treatments (P<0.05). The liver lipid content had a trend to increase with dietary lipid level increased (P<0.05), while liver protein and moisture level decreased with an increase in dietary lipid level (P<0.05). Based on the second order polynomial regression analysis of WG, this study suggested that 8.22% dietary lipid level was appropriated for N. japonica. •8.22% dietary lipid level was appropriated for Nibea japonica.•9–13% dietary lipid level could improve the protein utilization.•13–21% dietary lipid led to a lipid accumulation in visceral organs.
pubElsevier B.V.
doi10.1016/j.aquaculture.2014.08.012
eissn18735622
date2014-10-20