Effect of feeding frequency on growth and survival in juvenile gar Atractosteus tropicus Gill, 1863, in culture conditions

ABSTRACT: The gar, Atractosteus tropicus is a native fish distributed in fluvial systems of the Mexican southeast, which presents aquaculture potential in the food industry and as ornamental species. However, it is necessary to deepen the knowledge for the optimization of its culture. The present st...

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Autores principales:	Martínez-Cárdenas,Leonardo, Parra-Parra,Valeria G., Ramos-Resendiz,Silvia, Hernández-González,Crisantema, Espinosa-Chaurand,Daniel, Soria-Barreto-Carlos,Miriam, Álvarez-González,A., Martínez-García,Rafael
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2018
Materias:	aquarium pellets condition carbon nitrogen rate moisture content aquaculture
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2018000501034
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spelling	oai:scielo:S0718-560X20180005010342019-04-03Effect of feeding frequency on growth and survival in juvenile gar Atractosteus tropicus Gill, 1863, in culture conditionsMartínez-Cárdenas,LeonardoParra-Parra,Valeria G.Ramos-Resendiz,SilviaHernández-González,CrisantemaEspinosa-Chaurand,DanielSoria-Barreto-Carlos,MiriamÁlvarez-González,A.Martínez-García,Rafael aquarium pellets condition carbon nitrogen rate moisture content aquaculture ABSTRACT: The gar, Atractosteus tropicus is a native fish distributed in fluvial systems of the Mexican southeast, which presents aquaculture potential in the food industry and as ornamental species. However, it is necessary to deepen the knowledge for the optimization of its culture. The present study examined the effect of three feeding frequencies on the growth, survival, and condition of juveniles. The fish (90) were placed in nine 35 L tanks, (n = 10; three replicates per treatment). The feed (44% protein, 15% fat) was supplied to 2% of the biomass, divided into 2, 4 and 6 servings throughout 10 h for eight weeks. After eight weeks the standard length, wet weight, survival, Fulton K, specific growth rate, nitrogen carbon rate, the coefficient of variation and size heterogeneity were recorded, which were analyzed with a one-way ANOVA. There were no significant differences among treatments for any of the response variables. The overall results indicated that in general both the culture conditions and the three food frequencies tested were adequate for the species. The results indicate the high flexibility of the species to be cultured with minimum requirements of the food supply, which can translate into the optimization of production costs.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.46 n.5 20182018-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2018000501034en10.3856/vol46-issue5-fulltext-16
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	aquarium pellets condition carbon nitrogen rate moisture content aquaculture
spellingShingle	aquarium pellets condition carbon nitrogen rate moisture content aquaculture Martínez-Cárdenas,Leonardo Parra-Parra,Valeria G. Ramos-Resendiz,Silvia Hernández-González,Crisantema Espinosa-Chaurand,Daniel Soria-Barreto-Carlos,Miriam Álvarez-González,A. Martínez-García,Rafael Effect of feeding frequency on growth and survival in juvenile gar Atractosteus tropicus Gill, 1863, in culture conditions
description	ABSTRACT: The gar, Atractosteus tropicus is a native fish distributed in fluvial systems of the Mexican southeast, which presents aquaculture potential in the food industry and as ornamental species. However, it is necessary to deepen the knowledge for the optimization of its culture. The present study examined the effect of three feeding frequencies on the growth, survival, and condition of juveniles. The fish (90) were placed in nine 35 L tanks, (n = 10; three replicates per treatment). The feed (44% protein, 15% fat) was supplied to 2% of the biomass, divided into 2, 4 and 6 servings throughout 10 h for eight weeks. After eight weeks the standard length, wet weight, survival, Fulton K, specific growth rate, nitrogen carbon rate, the coefficient of variation and size heterogeneity were recorded, which were analyzed with a one-way ANOVA. There were no significant differences among treatments for any of the response variables. The overall results indicated that in general both the culture conditions and the three food frequencies tested were adequate for the species. The results indicate the high flexibility of the species to be cultured with minimum requirements of the food supply, which can translate into the optimization of production costs.
author	Martínez-Cárdenas,Leonardo Parra-Parra,Valeria G. Ramos-Resendiz,Silvia Hernández-González,Crisantema Espinosa-Chaurand,Daniel Soria-Barreto-Carlos,Miriam Álvarez-González,A. Martínez-García,Rafael
author_facet	Martínez-Cárdenas,Leonardo Parra-Parra,Valeria G. Ramos-Resendiz,Silvia Hernández-González,Crisantema Espinosa-Chaurand,Daniel Soria-Barreto-Carlos,Miriam Álvarez-González,A. Martínez-García,Rafael
author_sort	Martínez-Cárdenas,Leonardo
title	Effect of feeding frequency on growth and survival in juvenile gar Atractosteus tropicus Gill, 1863, in culture conditions
title_short	Effect of feeding frequency on growth and survival in juvenile gar Atractosteus tropicus Gill, 1863, in culture conditions
title_full	Effect of feeding frequency on growth and survival in juvenile gar Atractosteus tropicus Gill, 1863, in culture conditions
title_fullStr	Effect of feeding frequency on growth and survival in juvenile gar Atractosteus tropicus Gill, 1863, in culture conditions
title_full_unstemmed	Effect of feeding frequency on growth and survival in juvenile gar Atractosteus tropicus Gill, 1863, in culture conditions
title_sort	effect of feeding frequency on growth and survival in juvenile gar atractosteus tropicus gill, 1863, in culture conditions
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2018000501034
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Effect of feeding frequency on growth and survival in juvenile gar Atractosteus tropicus Gill, 1863, in culture conditions

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