Effect of stocking density of juvenile Arapaima gigas on rearing water quality hematological and biochemical profile, and productive performance

ABSTRACT At inadequate stocking density, fish generally show different physiological responses. The effects of stocking density on Arapaima gigas larvae productive parameters have been determined in a previous study. This study aimed to evaluate the effect of the stocking density on the water qualit...

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Autores principales:	Paredes-López,Daniel, Robles-Huaynate,Rizal, Rebaza-Alfaro,Carmela, Delgado-Ramírez,José, Aldava-Pardave,Uriel
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2021
Materias:	Arapaima gigas fish farming fish performance intensive rearing aquaculture
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000200193
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spelling	oai:scielo:S0718-560X20210002001932021-06-10Effect of stocking density of juvenile Arapaima gigas on rearing water quality hematological and biochemical profile, and productive performanceParedes-López,DanielRobles-Huaynate,RizalRebaza-Alfaro,CarmelaDelgado-Ramírez,JoséAldava-Pardave,Uriel Arapaima gigas fish farming fish performance intensive rearing aquaculture ABSTRACT At inadequate stocking density, fish generally show different physiological responses. The effects of stocking density on Arapaima gigas larvae productive parameters have been determined in a previous study. This study aimed to evaluate the effect of the stocking density on the water quality, hematological and biochemical profile, and productive performance of juvenile A. gigas. One hundred and eighty twelve months old, A. gigas were distributed into tanks using initial densities of 103.90, 157.95 and 220.11 kg m-3 with three replicates. Ammoniacal nitrogen, carbon dioxide, dissolved oxygen pH, alkalinity, and hardness were determined using a LaMotte Fish Farm 9, AQ-2 model, Maryland, USA, freshwater test kit. Blood samples were taken at 13, 14, and 15 months old by pricking the caudal vein and profiles of glucose (Glu), total protein (TP), albumin, aspartate transaminase (AST), alanine transaminase (ALT), and urea, were determined in blood serum. Rearing water was saturated in ammoniac nitrogen, carbon dioxide, and dissolved oxygen but have not changed with the increase of stocking density (P < 0.05), Erythrocyte's count (EC) diminished (P < 0.05), nonetheless, hemoglobin, mean concentration hemoglobin (MCH) and mean cell volume (MCV) increased (P < 0.05). Albumin, AST, ALT and urea diminished at 220.11 kg m-3 stocking density (P < 0.05). The feed intake increased, final biomass gain was 100.26 ± 19.00, 119.10 ± 13.95, and 130.24 ± 08.07 kg m-3, but did not change as density increased (P < 0.05). Juveniles of A. gigas showed no variation in productive performance with an increase in the stocking density. Furthermore, hematological and biochemical adapting profile to high stocking densities characterized this species.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.49 n.2 20212021-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000200193en10.3856/vol49-issue2-fulltext-2588
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Arapaima gigas fish farming fish performance intensive rearing aquaculture
spellingShingle	Arapaima gigas fish farming fish performance intensive rearing aquaculture Paredes-López,Daniel Robles-Huaynate,Rizal Rebaza-Alfaro,Carmela Delgado-Ramírez,José Aldava-Pardave,Uriel Effect of stocking density of juvenile Arapaima gigas on rearing water quality hematological and biochemical profile, and productive performance
description	ABSTRACT At inadequate stocking density, fish generally show different physiological responses. The effects of stocking density on Arapaima gigas larvae productive parameters have been determined in a previous study. This study aimed to evaluate the effect of the stocking density on the water quality, hematological and biochemical profile, and productive performance of juvenile A. gigas. One hundred and eighty twelve months old, A. gigas were distributed into tanks using initial densities of 103.90, 157.95 and 220.11 kg m-3 with three replicates. Ammoniacal nitrogen, carbon dioxide, dissolved oxygen pH, alkalinity, and hardness were determined using a LaMotte Fish Farm 9, AQ-2 model, Maryland, USA, freshwater test kit. Blood samples were taken at 13, 14, and 15 months old by pricking the caudal vein and profiles of glucose (Glu), total protein (TP), albumin, aspartate transaminase (AST), alanine transaminase (ALT), and urea, were determined in blood serum. Rearing water was saturated in ammoniac nitrogen, carbon dioxide, and dissolved oxygen but have not changed with the increase of stocking density (P < 0.05), Erythrocyte's count (EC) diminished (P < 0.05), nonetheless, hemoglobin, mean concentration hemoglobin (MCH) and mean cell volume (MCV) increased (P < 0.05). Albumin, AST, ALT and urea diminished at 220.11 kg m-3 stocking density (P < 0.05). The feed intake increased, final biomass gain was 100.26 ± 19.00, 119.10 ± 13.95, and 130.24 ± 08.07 kg m-3, but did not change as density increased (P < 0.05). Juveniles of A. gigas showed no variation in productive performance with an increase in the stocking density. Furthermore, hematological and biochemical adapting profile to high stocking densities characterized this species.
author	Paredes-López,Daniel Robles-Huaynate,Rizal Rebaza-Alfaro,Carmela Delgado-Ramírez,José Aldava-Pardave,Uriel
author_facet	Paredes-López,Daniel Robles-Huaynate,Rizal Rebaza-Alfaro,Carmela Delgado-Ramírez,José Aldava-Pardave,Uriel
author_sort	Paredes-López,Daniel
title	Effect of stocking density of juvenile Arapaima gigas on rearing water quality hematological and biochemical profile, and productive performance
title_short	Effect of stocking density of juvenile Arapaima gigas on rearing water quality hematological and biochemical profile, and productive performance
title_full	Effect of stocking density of juvenile Arapaima gigas on rearing water quality hematological and biochemical profile, and productive performance
title_fullStr	Effect of stocking density of juvenile Arapaima gigas on rearing water quality hematological and biochemical profile, and productive performance
title_full_unstemmed	Effect of stocking density of juvenile Arapaima gigas on rearing water quality hematological and biochemical profile, and productive performance
title_sort	effect of stocking density of juvenile arapaima gigas on rearing water quality hematological and biochemical profile, and productive performance
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000200193
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Effect of stocking density of juvenile Arapaima gigas on rearing water quality hematological and biochemical profile, and productive performance

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