Effect of a commercial probiotic on bacterial and phytoplankton concentration in intensive shrimp farming (Litopenaeus vannamei) recirculation systems

The aim of this study was to evaluate the effect of a commercial probiotic on the bacterial and phytoplankton concentration in intensive shrimp farming (Litopenaeus vannamei) with a recirculation system, for one culture period in Rio Grande do Norte, Brazil. Ponds, with mean area of 2.6 ha, were sto...

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Autores principales:	de Paiva-Maia,Enox, Alves-Modesto,George, Otavio-Brito,Luis, Olivera,Alfredo, Vasconcelos-Gesteira,Tereza Cristina
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2013
Materias:	Litopenaeus vannamei heterotrophic bacteria Vibrio microalgae aquaculture Brazil
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2013000100010
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spelling	oai:scielo:S0718-560X20130001000102013-08-01Effect of a commercial probiotic on bacterial and phytoplankton concentration in intensive shrimp farming (Litopenaeus vannamei) recirculation systemsde Paiva-Maia,EnoxAlves-Modesto,GeorgeOtavio-Brito,LuisOlivera,AlfredoVasconcelos-Gesteira,Tereza Cristina Litopenaeus vannamei heterotrophic bacteria Vibrio microalgae aquaculture Brazil The aim of this study was to evaluate the effect of a commercial probiotic on the bacterial and phytoplankton concentration in intensive shrimp farming (Litopenaeus vannamei) with a recirculation system, for one culture period in Rio Grande do Norte, Brazil. Ponds, with mean area of 2.6 ha, were stocked with a density of 98 shrimp m-2. A commercial probiotic was prepared following the manufacture's specifications and sprayed on the surface of the ponds seven days prior to stocking and then on a weekly basis until harvest. The same procedures were used with all treatments (control and probiotic), with regard to feeding, liming, fertilization, use of molasses and monitoring of water quality. Field data were analyzed using ANOVA, the Tukey test and Chi-square tests. No significant differences between treatments were found for water quality data, but treatment means showed significant differences for total heterotrophic bacteria in the sediment (5.181 ± 0.34x10(4) cfu g-1 and 5.749 ± 0.67x10(4) cfu g-1), total heterotrophic bacteria in surface water (4.514 ± 0.95x 10(4) cfu m L-1 and 4.136 ± 0.81x10(4) cfu m L-1) and positive sucrose in surface water (2.438 ± 0.72x10(4) cfu m L-1 and 2.203 ± 0.76x10(4) cfu m L-1), respectively, for the control and probiotic treatment. Significant differences were also observed throughout the weeks for total heterotrophic bacteria in the sediment, positive and negative sucrose in the sediment, total heterotrophic bacteria in surface and bottom water, and Pyrrophyta percentage values between 10 and 16 weeks. These results showed that the probiotic causes changes in the total heterotrophic bacteria in the sediment and percentage values of Pyrrophyta concentration, improving the environmental quality of the sediment and water in ponds with closed recirculation systems.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.41 n.1 20132013-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2013000100010en103856/vol41-issue1-fulltext-10
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Litopenaeus vannamei heterotrophic bacteria Vibrio microalgae aquaculture Brazil
spellingShingle	Litopenaeus vannamei heterotrophic bacteria Vibrio microalgae aquaculture Brazil de Paiva-Maia,Enox Alves-Modesto,George Otavio-Brito,Luis Olivera,Alfredo Vasconcelos-Gesteira,Tereza Cristina Effect of a commercial probiotic on bacterial and phytoplankton concentration in intensive shrimp farming (Litopenaeus vannamei) recirculation systems
description	The aim of this study was to evaluate the effect of a commercial probiotic on the bacterial and phytoplankton concentration in intensive shrimp farming (Litopenaeus vannamei) with a recirculation system, for one culture period in Rio Grande do Norte, Brazil. Ponds, with mean area of 2.6 ha, were stocked with a density of 98 shrimp m-2. A commercial probiotic was prepared following the manufacture's specifications and sprayed on the surface of the ponds seven days prior to stocking and then on a weekly basis until harvest. The same procedures were used with all treatments (control and probiotic), with regard to feeding, liming, fertilization, use of molasses and monitoring of water quality. Field data were analyzed using ANOVA, the Tukey test and Chi-square tests. No significant differences between treatments were found for water quality data, but treatment means showed significant differences for total heterotrophic bacteria in the sediment (5.181 ± 0.34x10(4) cfu g-1 and 5.749 ± 0.67x10(4) cfu g-1), total heterotrophic bacteria in surface water (4.514 ± 0.95x 10(4) cfu m L-1 and 4.136 ± 0.81x10(4) cfu m L-1) and positive sucrose in surface water (2.438 ± 0.72x10(4) cfu m L-1 and 2.203 ± 0.76x10(4) cfu m L-1), respectively, for the control and probiotic treatment. Significant differences were also observed throughout the weeks for total heterotrophic bacteria in the sediment, positive and negative sucrose in the sediment, total heterotrophic bacteria in surface and bottom water, and Pyrrophyta percentage values between 10 and 16 weeks. These results showed that the probiotic causes changes in the total heterotrophic bacteria in the sediment and percentage values of Pyrrophyta concentration, improving the environmental quality of the sediment and water in ponds with closed recirculation systems.
author	de Paiva-Maia,Enox Alves-Modesto,George Otavio-Brito,Luis Olivera,Alfredo Vasconcelos-Gesteira,Tereza Cristina
author_facet	de Paiva-Maia,Enox Alves-Modesto,George Otavio-Brito,Luis Olivera,Alfredo Vasconcelos-Gesteira,Tereza Cristina
author_sort	de Paiva-Maia,Enox
title	Effect of a commercial probiotic on bacterial and phytoplankton concentration in intensive shrimp farming (Litopenaeus vannamei) recirculation systems
title_short	Effect of a commercial probiotic on bacterial and phytoplankton concentration in intensive shrimp farming (Litopenaeus vannamei) recirculation systems
title_full	Effect of a commercial probiotic on bacterial and phytoplankton concentration in intensive shrimp farming (Litopenaeus vannamei) recirculation systems
title_fullStr	Effect of a commercial probiotic on bacterial and phytoplankton concentration in intensive shrimp farming (Litopenaeus vannamei) recirculation systems
title_full_unstemmed	Effect of a commercial probiotic on bacterial and phytoplankton concentration in intensive shrimp farming (Litopenaeus vannamei) recirculation systems
title_sort	effect of a commercial probiotic on bacterial and phytoplankton concentration in intensive shrimp farming (litopenaeus vannamei) recirculation systems
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2013000100010
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Effect of a commercial probiotic on bacterial and phytoplankton concentration in intensive shrimp farming (Litopenaeus vannamei) recirculation systems

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