Effects of frequency and feeding time on growth, food utilization, somatic indexes and survival of juvenile white snook Centropomus viridis

The Pacific white snook, Centropomus viridis, is considered a species with high farming potential in Mexico due to its high economic value and overall demand in the national market. Growth in farmed fish is largely determined by the dietary regimen, which includes feeding frequency, rate, time, and...

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Main Authors:	Abdo-de la Parra, María Isabel, Rodríguez-Ibarra, Luz Estela, Ibarra-Castro, Leonardo, Martínez-Brown, Juan Manuel, Velasco-Blanco, Gabriela
Format:	info:eu-repo/semantics/article
Language:	eng
Published:	Iniversidad Autónoma de Baja California 2020
Subjects:	feeding regimen growth juvenile snooks Centropomus viridis régimen alimenticio crecimiento juveniles de robalo blanco
Online Access:	https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3089
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id	repositorioinstitucional-20.500.12930-7577
record_format	dspace
institution	Repositorio Institucional
collection	DSpace
language	eng
topic	feeding regimen growth juvenile snooks Centropomus viridis régimen alimenticio crecimiento juveniles de robalo blanco Centropomus viridis
spellingShingle	feeding regimen growth juvenile snooks Centropomus viridis régimen alimenticio crecimiento juveniles de robalo blanco Centropomus viridis Abdo-de la Parra, María Isabel Rodríguez-Ibarra, Luz Estela Ibarra-Castro, Leonardo Martínez-Brown, Juan Manuel Velasco-Blanco, Gabriela Effects of frequency and feeding time on growth, food utilization, somatic indexes and survival of juvenile white snook Centropomus viridis
description	The Pacific white snook, Centropomus viridis, is considered a species with high farming potential in Mexico due to its high economic value and overall demand in the national market. Growth in farmed fish is largely determined by the dietary regimen, which includes feeding frequency, rate, time, and cycle. The aim of the present study was to determine the feeding frequency and appropriate feeding time for farmed C. viridis juveniles in order to optimize growth and survival. Juveniles weighing 0.36 ± 0.01 g were used to evaluate 1 and up to 5 ad-libitum feeding frequencies per day, with 3 to 24-h intervals, for 6 weeks. Gained weight (GW), growth rate (GR), specific growth rate (SGR), food conversion ratio (FCR), feeding efficiency rate (FER), coefficient of variation (CV), hepatosomatic index (HI), peritoneal fat index (PFI), and survival (S) were determined for juveniles. Regardless of the feeding hours, no significant differences were found in the GR and SGR values between juveniles fed 3 times a day and those fed 5 times a day. FCR was significantly higher and FER significantly lower in treatments with juveniles fed only once a day compared with the rest of the treatments. No significant differences were found in CV, HI, and S between treatments. PFI was significantly different only between juveniles fed once and 5 times a day. Considering the results obtained in this study, we suggest feeding C. viridis juveniles 3 times a day at 6-h intervals between doses. These results will contribute to the development of biotechnology for farming this species.
format	info:eu-repo/semantics/article
author	Abdo-de la Parra, María Isabel Rodríguez-Ibarra, Luz Estela Ibarra-Castro, Leonardo Martínez-Brown, Juan Manuel Velasco-Blanco, Gabriela
author_facet	Abdo-de la Parra, María Isabel Rodríguez-Ibarra, Luz Estela Ibarra-Castro, Leonardo Martínez-Brown, Juan Manuel Velasco-Blanco, Gabriela
author_sort	Abdo-de la Parra, María Isabel
title	Effects of frequency and feeding time on growth, food utilization, somatic indexes and survival of juvenile white snook Centropomus viridis
title_short	Effects of frequency and feeding time on growth, food utilization, somatic indexes and survival of juvenile white snook Centropomus viridis
title_full	Effects of frequency and feeding time on growth, food utilization, somatic indexes and survival of juvenile white snook Centropomus viridis
title_fullStr	Effects of frequency and feeding time on growth, food utilization, somatic indexes and survival of juvenile white snook Centropomus viridis
title_full_unstemmed	Effects of frequency and feeding time on growth, food utilization, somatic indexes and survival of juvenile white snook Centropomus viridis
title_sort	effects of frequency and feeding time on growth, food utilization, somatic indexes and survival of juvenile white snook centropomus viridis
publisher	Iniversidad Autónoma de Baja California
publishDate	2020
url	https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3089
_version_	1792609855545016320
spelling	repositorioinstitucional-20.500.12930-75772023-05-09T14:30:49Z Effects of frequency and feeding time on growth, food utilization, somatic indexes and survival of juvenile white snook Centropomus viridis Efecto de la frecuencia y hora de alimentación sobre el crecimiento, la eficiencia alimenticia, los índices somáticos y la supervivencia en juveniles de robalo blanco Centropomus viridis Abdo-de la Parra, María Isabel Rodríguez-Ibarra, Luz Estela Ibarra-Castro, Leonardo Martínez-Brown, Juan Manuel Velasco-Blanco, Gabriela feeding regimen growth juvenile snooks Centropomus viridis régimen alimenticio crecimiento juveniles de robalo blanco Centropomus viridis The Pacific white snook, Centropomus viridis, is considered a species with high farming potential in Mexico due to its high economic value and overall demand in the national market. Growth in farmed fish is largely determined by the dietary regimen, which includes feeding frequency, rate, time, and cycle. The aim of the present study was to determine the feeding frequency and appropriate feeding time for farmed C. viridis juveniles in order to optimize growth and survival. Juveniles weighing 0.36 ± 0.01 g were used to evaluate 1 and up to 5 ad-libitum feeding frequencies per day, with 3 to 24-h intervals, for 6 weeks. Gained weight (GW), growth rate (GR), specific growth rate (SGR), food conversion ratio (FCR), feeding efficiency rate (FER), coefficient of variation (CV), hepatosomatic index (HI), peritoneal fat index (PFI), and survival (S) were determined for juveniles. Regardless of the feeding hours, no significant differences were found in the GR and SGR values between juveniles fed 3 times a day and those fed 5 times a day. FCR was significantly higher and FER significantly lower in treatments with juveniles fed only once a day compared with the rest of the treatments. No significant differences were found in CV, HI, and S between treatments. PFI was significantly different only between juveniles fed once and 5 times a day. Considering the results obtained in this study, we suggest feeding C. viridis juveniles 3 times a day at 6-h intervals between doses. These results will contribute to the development of biotechnology for farming this species. El robalo blanco del pacífico, Centropomus viridis, se considera como una especie con alto potencial para su cultivo en México por su alto valor económico y gran demanda en el mercado nacional. El crecimiento de los peces en cultivo depende, en gran medida, del régimen alimenticio, el cual incluye, frecuencia, tasa, tiempo y ritmo de alimentación. El presente trabajo tuvo como objetivo determinar la frecuencia y la hora apropiada de alimentación de juveniles de C. viridis en cultivo para optimizar el crecimiento y la supervivencia. Se utilizaron juveniles de 0.36 ± 0.01 g para evaluar de 1 a 5 frecuencias de alimentación ad libitum por día, con intervalos de 3 a 24 h, durante 6 semanas. Se determinó el peso ganado (PG), la tasa de crecimiento (TC), la tasa específica de crecimiento (TEC), la tasa de conversión alimenticia (TCA), la tasa de eficiencia alimenticia (TEA), el coeficiente de variación (CV), el índice hepatosomático (IH), el índice de grasa peritoneal (IGP) y la supervivencia (S) de los juveniles. La TC y la TEC de los juveniles alimentados 3 veces al día, independientemente de las horas de alimentación, no presentaron diferencias significativas con respecto a los resultados obtenidos para los juveniles alimentados 5 veces al día. La TCA fue significativamente mayor y la TEA significativamente menor en los tratamientos con juveniles alimentados una sola vez al día en comparación con el resto de los tratamientos. No se encontraron diferencias significativas en CV, IH y S entre los tratamientos. El IGP solo presentó diferencias significativas entre los juveniles alimentados 1 y 5 veces al día. Con base en los resultados obtenidos en el presente estudio, se sugiere que los juveniles de C. viridis se alimenten 3 veces al día, con un intervalo de 6 h entre cada toma. Estos resultados ayudarán en el desarrollo de la biotecnología de cultivo de esta especie. 2020-09-28 2021-06-03T03:55:44Z 2021-06-03T03:55:44Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3089 10.7773/cm.v46i3.3089 https://hdl.handle.net/20.500.12930/7577 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3089/420420504 Copyright (c) 2020 Ciencias Marinas application/pdf Iniversidad Autónoma de Baja California Ciencias Marinas; Vol. 46 No. 3 (2020); 155–163 Ciencias Marinas; Vol. 46 Núm. 3 (2020); 155–163 2395-9053 0185-3880

Effects of frequency and feeding time on growth, food utilization, somatic indexes and survival of juvenile white snook Centropomus viridis

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