Dextrose as carbon source in the culture of Litopenaeus vannamei (Boone, 1931) in a zero exchange system

This work compared the use of dextrose and molasses as carbon sources for biofloc development, water quality maintenance, microorganism composition and growth performance of Litopenaeus vannamei juveniles in biofloc technology (BFT). Two treatments, dextrose and molasses, were tested with four repli...

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Autores principales:	Suita,Sabrina M, Ballester,Eduardo L.C, Abreu,Paulo C, Wasielesky Jr,Wilson
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2015
Materias:	Litopenaeus vannamei bioflocs nitrogen microorganisms microalgae aquaculture
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000300013
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spelling	oai:scielo:S0718-560X20150003000132015-09-29Dextrose as carbon source in the culture of Litopenaeus vannamei (Boone, 1931) in a zero exchange systemSuita,Sabrina MBallester,Eduardo L.CAbreu,Paulo CWasielesky Jr,Wilson Litopenaeus vannamei bioflocs nitrogen microorganisms microalgae aquaculture This work compared the use of dextrose and molasses as carbon sources for biofloc development, water quality maintenance, microorganism composition and growth performance of Litopenaeus vannamei juveniles in biofloc technology (BFT). Two treatments, dextrose and molasses, were tested with four replicates each. Carbon was added to achieve a C:N-AT (N-(NH3+NH4+)) ratio of 6:1. Physical and chemical water quality variables were monitored daily, and shrimp growth was estimated through periodic biometry. After 30 days, survival, final biomass, and feeding conversion rate (FCR) were determined. Dissolved organic carbon, chlorophyll-a, floc volume, total ammonia, nitrite, nitrate and phosphate concentrations, and microorganisms (qualified by groups), were measured every three days. Water quality variables remained within acceptable levels throughout the experimental period, except for nitrite, which reached higher levels than recommended for this species. The use of dextrose resulted in higher water transparency, which influenced the remaining centric diatoms. A superior shrimp performance was observed at this treatment, presumably because of variations on the microbial community. Therefore, it is concluded that the addition of dextrose results in a superior growth performance of L. vannamei when cultured in BFT 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.43 n.3 20152015-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000300013en10.3856/vol43-issue3-fulltext-13
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Litopenaeus vannamei bioflocs nitrogen microorganisms microalgae aquaculture
spellingShingle	Litopenaeus vannamei bioflocs nitrogen microorganisms microalgae aquaculture Suita,Sabrina M Ballester,Eduardo L.C Abreu,Paulo C Wasielesky Jr,Wilson Dextrose as carbon source in the culture of Litopenaeus vannamei (Boone, 1931) in a zero exchange system
description	This work compared the use of dextrose and molasses as carbon sources for biofloc development, water quality maintenance, microorganism composition and growth performance of Litopenaeus vannamei juveniles in biofloc technology (BFT). Two treatments, dextrose and molasses, were tested with four replicates each. Carbon was added to achieve a C:N-AT (N-(NH3+NH4+)) ratio of 6:1. Physical and chemical water quality variables were monitored daily, and shrimp growth was estimated through periodic biometry. After 30 days, survival, final biomass, and feeding conversion rate (FCR) were determined. Dissolved organic carbon, chlorophyll-a, floc volume, total ammonia, nitrite, nitrate and phosphate concentrations, and microorganisms (qualified by groups), were measured every three days. Water quality variables remained within acceptable levels throughout the experimental period, except for nitrite, which reached higher levels than recommended for this species. The use of dextrose resulted in higher water transparency, which influenced the remaining centric diatoms. A superior shrimp performance was observed at this treatment, presumably because of variations on the microbial community. Therefore, it is concluded that the addition of dextrose results in a superior growth performance of L. vannamei when cultured in BFT systems.
author	Suita,Sabrina M Ballester,Eduardo L.C Abreu,Paulo C Wasielesky Jr,Wilson
author_facet	Suita,Sabrina M Ballester,Eduardo L.C Abreu,Paulo C Wasielesky Jr,Wilson
author_sort	Suita,Sabrina M
title	Dextrose as carbon source in the culture of Litopenaeus vannamei (Boone, 1931) in a zero exchange system
title_short	Dextrose as carbon source in the culture of Litopenaeus vannamei (Boone, 1931) in a zero exchange system
title_full	Dextrose as carbon source in the culture of Litopenaeus vannamei (Boone, 1931) in a zero exchange system
title_fullStr	Dextrose as carbon source in the culture of Litopenaeus vannamei (Boone, 1931) in a zero exchange system
title_full_unstemmed	Dextrose as carbon source in the culture of Litopenaeus vannamei (Boone, 1931) in a zero exchange system
title_sort	dextrose as carbon source in the culture of litopenaeus vannamei (boone, 1931) in a zero exchange system
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000300013
work_keys_str_mv	AT suitasabrinam dextroseascarbonsourceinthecultureoflitopenaeusvannameiboone1931inazeroexchangesystem AT ballestereduardolc dextroseascarbonsourceinthecultureoflitopenaeusvannameiboone1931inazeroexchangesystem AT abreupauloc dextroseascarbonsourceinthecultureoflitopenaeusvannameiboone1931inazeroexchangesystem AT wasieleskyjrwilson dextroseascarbonsourceinthecultureoflitopenaeusvannameiboone1931inazeroexchangesystem
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Dextrose as carbon source in the culture of Litopenaeus vannamei (Boone, 1931) in a zero exchange system

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