Growth performance and body composition of hybrid red tilapia (Oreochromis mossambicus × O. aureus) fed with different protein levels raised in saltwater

ABSTRACT The present study evaluated the growth performance and whole-body composition of the hybrid red tilapia (Oreochromis mossambicus × O. aureus) raised in saltwater and fed three experimental diets containing different protein levels (25.6, 30.8 and 35.6% CP; crude protein). The hybrid red til...

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Autores principales:	Correia,Daniel, Escarcega-Miranda,Brandon, Barreto-Curiel,Fernando, Mata-Sotres,José, Del-Rio-Zaragoza,Oscar, Viana,María Teresa, Rombenso,Artur Nishioka
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2019
Materias:	hybrid red tilapia protein nutrition whole-body composition saltwater aquaculture
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2019000500853
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spelling	oai:scielo:S0718-560X20190005008532019-12-05Growth performance and body composition of hybrid red tilapia (Oreochromis mossambicus × O. aureus) fed with different protein levels raised in saltwaterCorreia,DanielEscarcega-Miranda,BrandonBarreto-Curiel,FernandoMata-Sotres,JoséDel-Rio-Zaragoza,OscarViana,María TeresaRombenso,Artur Nishioka hybrid red tilapia protein nutrition whole-body composition saltwater aquaculture ABSTRACT The present study evaluated the growth performance and whole-body composition of the hybrid red tilapia (Oreochromis mossambicus × O. aureus) raised in saltwater and fed three experimental diets containing different protein levels (25.6, 30.8 and 35.6% CP; crude protein). The hybrid red tilapia showed a high production performance across all dietary treatments: specific growth rate (SGR) = 3.12-3.51% body weight d-1; weight gain = 391-503%; feed conversion ratio (FCR) = 0.90-1.07; thermal growth coefficient (TGC) = 1.50-1.67; condition factor (CF) = 0.19-0.26. Dietary protein content significantly affected feed intake; fish fed the 30.8% CP diets displayed higher feed intake than those fed the 25.6% CP diet. Although the protein efficiency ratio (PER) was not significantly affected by dietary treatments, fish fed 25.6% CP diet demonstrated numerically higher values than those fed the other dietary treatments (4.34 vs. 3.06-3.35). The viscerosomatic index was significantly reduced in the 25.6% CP group compared to 30.8 and 35.6% CP groups. Regarding the whole-body composition, dietary protein affected all parameters, except lipid content. Fish fed the 30.8% CP diet exhibited significantly reduced relative protein content and elevated ash content in the whole-body in comparison to other dietary groups. The results of the present study indicated that juveniles of hybrid red tilapia accepted all dietary treatments. However, according to polynomial regression analyses based on PER and the high ash content in tilapias fed the 30.8% CP, it is suggested that the optimum dietary protein content for juvenile hybrid red tilapia was 25.6%.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.47 n.5 20192019-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2019000500853en10.3856/vol47-issue5-fulltext-15
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	hybrid red tilapia protein nutrition whole-body composition saltwater aquaculture
spellingShingle	hybrid red tilapia protein nutrition whole-body composition saltwater aquaculture Correia,Daniel Escarcega-Miranda,Brandon Barreto-Curiel,Fernando Mata-Sotres,José Del-Rio-Zaragoza,Oscar Viana,María Teresa Rombenso,Artur Nishioka Growth performance and body composition of hybrid red tilapia (Oreochromis mossambicus × O. aureus) fed with different protein levels raised in saltwater
description	ABSTRACT The present study evaluated the growth performance and whole-body composition of the hybrid red tilapia (Oreochromis mossambicus × O. aureus) raised in saltwater and fed three experimental diets containing different protein levels (25.6, 30.8 and 35.6% CP; crude protein). The hybrid red tilapia showed a high production performance across all dietary treatments: specific growth rate (SGR) = 3.12-3.51% body weight d-1; weight gain = 391-503%; feed conversion ratio (FCR) = 0.90-1.07; thermal growth coefficient (TGC) = 1.50-1.67; condition factor (CF) = 0.19-0.26. Dietary protein content significantly affected feed intake; fish fed the 30.8% CP diets displayed higher feed intake than those fed the 25.6% CP diet. Although the protein efficiency ratio (PER) was not significantly affected by dietary treatments, fish fed 25.6% CP diet demonstrated numerically higher values than those fed the other dietary treatments (4.34 vs. 3.06-3.35). The viscerosomatic index was significantly reduced in the 25.6% CP group compared to 30.8 and 35.6% CP groups. Regarding the whole-body composition, dietary protein affected all parameters, except lipid content. Fish fed the 30.8% CP diet exhibited significantly reduced relative protein content and elevated ash content in the whole-body in comparison to other dietary groups. The results of the present study indicated that juveniles of hybrid red tilapia accepted all dietary treatments. However, according to polynomial regression analyses based on PER and the high ash content in tilapias fed the 30.8% CP, it is suggested that the optimum dietary protein content for juvenile hybrid red tilapia was 25.6%.
author	Correia,Daniel Escarcega-Miranda,Brandon Barreto-Curiel,Fernando Mata-Sotres,José Del-Rio-Zaragoza,Oscar Viana,María Teresa Rombenso,Artur Nishioka
author_facet	Correia,Daniel Escarcega-Miranda,Brandon Barreto-Curiel,Fernando Mata-Sotres,José Del-Rio-Zaragoza,Oscar Viana,María Teresa Rombenso,Artur Nishioka
author_sort	Correia,Daniel
title	Growth performance and body composition of hybrid red tilapia (Oreochromis mossambicus × O. aureus) fed with different protein levels raised in saltwater
title_short	Growth performance and body composition of hybrid red tilapia (Oreochromis mossambicus × O. aureus) fed with different protein levels raised in saltwater
title_full	Growth performance and body composition of hybrid red tilapia (Oreochromis mossambicus × O. aureus) fed with different protein levels raised in saltwater
title_fullStr	Growth performance and body composition of hybrid red tilapia (Oreochromis mossambicus × O. aureus) fed with different protein levels raised in saltwater
title_full_unstemmed	Growth performance and body composition of hybrid red tilapia (Oreochromis mossambicus × O. aureus) fed with different protein levels raised in saltwater
title_sort	growth performance and body composition of hybrid red tilapia (oreochromis mossambicus × o. aureus) fed with different protein levels raised in saltwater
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2019000500853
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Growth performance and body composition of hybrid red tilapia (Oreochromis mossambicus × O. aureus) fed with different protein levels raised in saltwater

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