FN Archimer Export Format
PT J
TI Evaluation of Aurantiochytrium mangrovei Biomass Grown on Digestate as a Sustainable Feed Ingredient of Sea Bass, Dicentrarchus labrax, Juveniles and Larvae
BT 
AF SOUDANT, Philippe
   VENTURA, Mariana
   CHAUCHAT, Luc
   Guerreiro, Mauean
   MATHIEU-RESUGE, Margaux
   LE GRAND, Fabienne
   SIMON, Victor
   COLLET, Sophie
   ZAMBONINO INFANTE, Jose-Luis
   Le Goïc, Nelly
   LAMBERT, Christophe
   Fernandes, Fleuriane
   Sillkina, Alla
   Fernandes de Souza, Marcella
   De la Broise, Denis
AS 1:1,5;2:1;3:1;4:1;5:1;6:1,5;7:4;8:4;9:4;10:1,5;11:1,5;12:2;13:2;14:3;15:1;
FF 1:;2:;3:;4:;5:;6:;7:PDG-RBE-PFOM-LARN;8:PDG-RBE-PFOM-LARN;9:PDG-RBE-PFOM;10:;11:;12:;13:;14:;15:;
C1 Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
   AlgaeWales Research Group, Centre for Sustainable Aquatic Research (CSAR), College of Science, Bioscience Department, Swansea University, Singleton Park, Swansea SA2 8PP, UK
   Department of Green Chemistry & Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
   Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
   Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
C2 UBO, FRANCE
   UNIV SWANSEA, UK
   UNIV GHENT, BELGIUM
   IFREMER, FRANCE
   CNRS, FRANCE
SI BREST
SE PDG-RBE-PFOM-LARN
   PDG-RBE-PFOM
UM LEMAR
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-europe
   copubli-univ-france
IF 3.9
TC 5
UR https://archimer.ifremer.fr/doc/00801/91331/97146.pdf
   https://archimer.ifremer.fr/doc/00801/91331/97147.zip
LA English
DT Article
DE ;aquaculture;nutrition;sustainability;n-3 long-chain polyunsaturated fatty acids;Thraustochytrids;microalgae;fish oil
AB The use of microalgae as a sustainable source of n-3 long-chain polyunsaturated fatty acids (LC-PUFA) as an alternative to fish oils from small pelagic fish (e.g., anchovy, sardine) has received growing interest in the past few years. The present study aimed to: (i) produce Aurantiochytrium mangrovei biomass by heterotrophic fermentation using a medium containing anaerobic digestion liquid effluent, and (ii) evaluate a biomass rich in n-3 LC-PUFA and good quality proteins as a feed ingredient for sea bass juveniles and larvae. Two 800 L bioreactors were used to produce Aurantiochytrium biomass in non-axenic conditions. Biomass was then filtered through a crossflow filtration system (300 Kda ceramic membrane) and freeze-dried. Sea bass juveniles (32.7 ± 4.2 g) were fed both a control diet and a diet containing 15% of freeze-dried A. mangrovei biomass for 38 days. Juvenile survival percentage was 90% on average in both dietary conditions. Similar growth was observed between fish fed with both diets, demonstrating the feasibility to replace 15% of a standard fish feed by Aurantiochytrium biomass. The liver of sea bass juveniles fed with the A. mangrovei diet contained significantly higher proportions of 22:6n-3, 22:5n-6, and 20:4n-6 than those fed with the control diet, while the proportions of 16:0, 16:1n-7, and 18:1n-9 were significantly lower. The secondary oxidation, as measured by malonylaldehyde (MDA) content, in the liver and muscle of juveniles fed with the microalgae diet tended to be higher than in fish fed the control diet, but the differences were not statistically significant. Although the larvae survival percentage was low for all the tanks after 41 days of rearing, the inclusion of 15% of hydrolyzed A. mangrovei biomass in the larvae micro-diet did not impair the development of sea bass larvae and only marginally affected their lipid composition. In the future, we have to further optimize a sustainable workflow between Aurantiochytrium cultivation and fish feed production and confirm the zootechnical and biochemical results. 
PY 2022
PD NOV
SO Sustainability
SN 2071-1050
PU MDPI
VL 14
IS 21
UT 000884012300001
DI 10.3390/su142114573
ID 91331
ER

EF