Primary Nutritional Content of Bio-Flocs Cultured with Different Organic Carbon Sources and Salinity

Application of bio-flocs technology (BFT) in aquaculture offers a solution to avoid environmental impact of high nutrient discharges and to reduce the use of artificial feed. In BFT, excess of nutrients in aquaculture systems are converted into microbial biomass, which can be consumed by the culture...

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Main Authors: JULIE EKASARI, ROSELIEN CRAB, WILLY VERSTRAETE
Format: Article
Language:English
Published: Bogor Agricultural University 2010-09-01
Series:Hayati Journal of Biosciences
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1978301916301899
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author JULIE EKASARI
ROSELIEN CRAB
WILLY VERSTRAETE
author_facet JULIE EKASARI
ROSELIEN CRAB
WILLY VERSTRAETE
author_sort JULIE EKASARI
collection DOAJ
description Application of bio-flocs technology (BFT) in aquaculture offers a solution to avoid environmental impact of high nutrient discharges and to reduce the use of artificial feed. In BFT, excess of nutrients in aquaculture systems are converted into microbial biomass, which can be consumed by the cultured animals as a food source. In this experiment, upconcentrated pond water obtained from the drum filter of a freshwater tilapia farm was used for bio-flocs reactors. Two carbon sources, sugar and glycerol, were used as the first variable, and two different levels of salinity, 0 and 30 ppt, were used as the second variable. Bio-flocs with glycerol as a carbon source had higher total n-6 PUFAs (19.1 ± 2.1 and 22.3 ± 8.6 mg/g DW at 0 and 30 ppt, respectively) than that of glucose (4.0 ± 0.1 and 12.6 ± 2.5 mg/g DW at 0 and 30 ppt). However, there was no effect of carbon source or salinity on crude protein, lipid, and total n-3 PUFAs contents of the bio-flocs.
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spelling doaj.art-0da69e033e624133848c575aa446af5d2022-12-21T23:27:57ZengBogor Agricultural UniversityHayati Journal of Biosciences1978-30192010-09-0117312513010.4308/hjb.17.3.125Primary Nutritional Content of Bio-Flocs Cultured with Different Organic Carbon Sources and SalinityJULIE EKASARI0ROSELIEN CRAB1WILLY VERSTRAETE2Department of Aquaculture, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Darmaga Campus, Bogor 16680, IndonesiaLaboratory of Microbial Ecology and Technology (LabMET), Ghent University, Coupure Links 653, B-9000 Ghent, BelgiumLaboratory of Microbial Ecology and Technology (LabMET), Ghent University, Coupure Links 653, B-9000 Ghent, BelgiumApplication of bio-flocs technology (BFT) in aquaculture offers a solution to avoid environmental impact of high nutrient discharges and to reduce the use of artificial feed. In BFT, excess of nutrients in aquaculture systems are converted into microbial biomass, which can be consumed by the cultured animals as a food source. In this experiment, upconcentrated pond water obtained from the drum filter of a freshwater tilapia farm was used for bio-flocs reactors. Two carbon sources, sugar and glycerol, were used as the first variable, and two different levels of salinity, 0 and 30 ppt, were used as the second variable. Bio-flocs with glycerol as a carbon source had higher total n-6 PUFAs (19.1 ± 2.1 and 22.3 ± 8.6 mg/g DW at 0 and 30 ppt, respectively) than that of glucose (4.0 ± 0.1 and 12.6 ± 2.5 mg/g DW at 0 and 30 ppt). However, there was no effect of carbon source or salinity on crude protein, lipid, and total n-3 PUFAs contents of the bio-flocs.http://www.sciencedirect.com/science/article/pii/S1978301916301899bio-flocscarbon sourceproteinfatty acidsglucoseglycerol
spellingShingle JULIE EKASARI
ROSELIEN CRAB
WILLY VERSTRAETE
Primary Nutritional Content of Bio-Flocs Cultured with Different Organic Carbon Sources and Salinity
Hayati Journal of Biosciences
bio-flocs
carbon source
protein
fatty acids
glucose
glycerol
title Primary Nutritional Content of Bio-Flocs Cultured with Different Organic Carbon Sources and Salinity
title_full Primary Nutritional Content of Bio-Flocs Cultured with Different Organic Carbon Sources and Salinity
title_fullStr Primary Nutritional Content of Bio-Flocs Cultured with Different Organic Carbon Sources and Salinity
title_full_unstemmed Primary Nutritional Content of Bio-Flocs Cultured with Different Organic Carbon Sources and Salinity
title_short Primary Nutritional Content of Bio-Flocs Cultured with Different Organic Carbon Sources and Salinity
title_sort primary nutritional content of bio flocs cultured with different organic carbon sources and salinity
topic bio-flocs
carbon source
protein
fatty acids
glucose
glycerol
url http://www.sciencedirect.com/science/article/pii/S1978301916301899
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AT roseliencrab primarynutritionalcontentofbioflocsculturedwithdifferentorganiccarbonsourcesandsalinity
AT willyverstraete primarynutritionalcontentofbioflocsculturedwithdifferentorganiccarbonsourcesandsalinity