Effects of dietary digestible protein and energy levels on growth performance, feed utilization, and body composition of juvenile permit, Trachinotus falcatus (Linnaeus, 1758)

Huy Quang Nguyen*, Thiet Chi Chu, Thuy Thi Le Nguyen, Ivar Lund

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

A 9-wk study was conducted to evaluate the effect of dietary protein and energy on growth performance of juvenile permit, Trachinotus falcatus, growing from approximately 30 to 150g. Nine experimental diets were formulated to contain three levels of crude protein (400, 450, and 500g/kg dry matter [DM]); and three levels of crude lipid (100, 200, and 300g/kg DM) in a 3 x 3 factorial design. Growth rate and feed efficiency were significantly improved with increasing dietary protein levels from 400 to 500g/kg and with dietary lipid levels from 100 to 200g/kg. Fish body protein content was positively correlated with dietary ratio of digestible protein (DP) to digestible energy (DE) (P<0.01, R2=0.83), while body lipid was negatively correlated with dietary DP/DE (R2=0.55, P<0.05) but positively correlated with dietary DE levels (R2=0.66, P<0.01). Results showed a protein-sparing effect, as protein retention was significantly increased by increasing dietary lipid level. In conclusion, the diet containing DP of 392.7g/kg and DE of 18.8 MJ/kg (DM), corresponding to a DP/DE of 20.9g/MJ, is suggested as an optimal feed for growth and feed efficiency in juvenile permit.
Original languageEnglish
JournalJournal of the World Aquaculture Society
Volume49
Issue number5
Pages (from-to)943-952
ISSN0893-8849
DOIs
Publication statusPublished - 2018

Keywords

  • Body composition
  • Feed efficiency
  • Formulated diet
  • Growth performance
  • Permit

Cite this

@article{eda43216ba81486d85cf78bd6544d747,
title = "Effects of dietary digestible protein and energy levels on growth performance, feed utilization, and body composition of juvenile permit, Trachinotus falcatus (Linnaeus, 1758)",
abstract = "A 9-wk study was conducted to evaluate the effect of dietary protein and energy on growth performance of juvenile permit, Trachinotus falcatus, growing from approximately 30 to 150g. Nine experimental diets were formulated to contain three levels of crude protein (400, 450, and 500g/kg dry matter [DM]); and three levels of crude lipid (100, 200, and 300g/kg DM) in a 3 x 3 factorial design. Growth rate and feed efficiency were significantly improved with increasing dietary protein levels from 400 to 500g/kg and with dietary lipid levels from 100 to 200g/kg. Fish body protein content was positively correlated with dietary ratio of digestible protein (DP) to digestible energy (DE) (P<0.01, R2=0.83), while body lipid was negatively correlated with dietary DP/DE (R2=0.55, P<0.05) but positively correlated with dietary DE levels (R2=0.66, P<0.01). Results showed a protein-sparing effect, as protein retention was significantly increased by increasing dietary lipid level. In conclusion, the diet containing DP of 392.7g/kg and DE of 18.8 MJ/kg (DM), corresponding to a DP/DE of 20.9g/MJ, is suggested as an optimal feed for growth and feed efficiency in juvenile permit.",
keywords = "Body composition, Feed efficiency, Formulated diet, Growth performance, Permit",
author = "Nguyen, {Huy Quang} and Chu, {Thiet Chi} and Nguyen, {Thuy Thi Le} and Ivar Lund",
year = "2018",
doi = "10.1111/jwas.12433",
language = "English",
volume = "49",
pages = "943--952",
journal = "Journal of the World Aquaculture Society",
issn = "0893-8849",
publisher = "Wiley-Blackwell",
number = "5",

}

Effects of dietary digestible protein and energy levels on growth performance, feed utilization, and body composition of juvenile permit, Trachinotus falcatus (Linnaeus, 1758). / Nguyen, Huy Quang; Chu, Thiet Chi; Nguyen, Thuy Thi Le; Lund, Ivar.

In: Journal of the World Aquaculture Society, Vol. 49, No. 5, 2018, p. 943-952.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Effects of dietary digestible protein and energy levels on growth performance, feed utilization, and body composition of juvenile permit, Trachinotus falcatus (Linnaeus, 1758)

AU - Nguyen, Huy Quang

AU - Chu, Thiet Chi

AU - Nguyen, Thuy Thi Le

AU - Lund, Ivar

PY - 2018

Y1 - 2018

N2 - A 9-wk study was conducted to evaluate the effect of dietary protein and energy on growth performance of juvenile permit, Trachinotus falcatus, growing from approximately 30 to 150g. Nine experimental diets were formulated to contain three levels of crude protein (400, 450, and 500g/kg dry matter [DM]); and three levels of crude lipid (100, 200, and 300g/kg DM) in a 3 x 3 factorial design. Growth rate and feed efficiency were significantly improved with increasing dietary protein levels from 400 to 500g/kg and with dietary lipid levels from 100 to 200g/kg. Fish body protein content was positively correlated with dietary ratio of digestible protein (DP) to digestible energy (DE) (P<0.01, R2=0.83), while body lipid was negatively correlated with dietary DP/DE (R2=0.55, P<0.05) but positively correlated with dietary DE levels (R2=0.66, P<0.01). Results showed a protein-sparing effect, as protein retention was significantly increased by increasing dietary lipid level. In conclusion, the diet containing DP of 392.7g/kg and DE of 18.8 MJ/kg (DM), corresponding to a DP/DE of 20.9g/MJ, is suggested as an optimal feed for growth and feed efficiency in juvenile permit.

AB - A 9-wk study was conducted to evaluate the effect of dietary protein and energy on growth performance of juvenile permit, Trachinotus falcatus, growing from approximately 30 to 150g. Nine experimental diets were formulated to contain three levels of crude protein (400, 450, and 500g/kg dry matter [DM]); and three levels of crude lipid (100, 200, and 300g/kg DM) in a 3 x 3 factorial design. Growth rate and feed efficiency were significantly improved with increasing dietary protein levels from 400 to 500g/kg and with dietary lipid levels from 100 to 200g/kg. Fish body protein content was positively correlated with dietary ratio of digestible protein (DP) to digestible energy (DE) (P<0.01, R2=0.83), while body lipid was negatively correlated with dietary DP/DE (R2=0.55, P<0.05) but positively correlated with dietary DE levels (R2=0.66, P<0.01). Results showed a protein-sparing effect, as protein retention was significantly increased by increasing dietary lipid level. In conclusion, the diet containing DP of 392.7g/kg and DE of 18.8 MJ/kg (DM), corresponding to a DP/DE of 20.9g/MJ, is suggested as an optimal feed for growth and feed efficiency in juvenile permit.

KW - Body composition

KW - Feed efficiency

KW - Formulated diet

KW - Growth performance

KW - Permit

U2 - 10.1111/jwas.12433

DO - 10.1111/jwas.12433

M3 - Journal article

VL - 49

SP - 943

EP - 952

JO - Journal of the World Aquaculture Society

JF - Journal of the World Aquaculture Society

SN - 0893-8849

IS - 5

ER -