FN Archimer Export Format
PT J
TI Changes in biochemical and hemocyte parameters of the pacific oysters Crassostrea gigas fed T-Iso supplemented with lipid emulsions rich in eicosapentaenoic acid
BT 
AF DELAPORTE, Maryse
   CHU, Fu-Lin
   LANGDON, Chris
   MOAL, Jeanne
   LAMBERT, Christophe
   SAMAIN, Jean-Francois
   SOUDANT, Philippe
AS 1:2;2:3;3:4;4:2;5:1;6:2;7:1;
FF 1:PDG-DOP-DCB-PFOM-PI;2:;3:;4:PDG-DOP-DCB-PFOM-PI;5:;6:PDG-DOP-DCB-PFOM-PI;7:;
C1 Univ Bretagne Occidentale, LEMAR, UMR 6539, Inst Univ Europeen Mer,Lab Sci Environm Marin, F-29280 Plouzane, France.
   IFREMER, Ctr Brest, UMR Ecophysiol & Physiol Mollusques Marins, F-29280 Plouzane, France.
   Virginia Inst Marine Sci, Sch Marine Sci, Gloucester Point, VA 23062 USA.
   Oregon State Univ, Coastatl Oregon Marine Expt Stn, Newport, OR 97365 USA.
C2 UBO, FRANCE
   IFREMER, FRANCE
   VIRGINIA INST MARINE SCI, USA
   UNIV OREGON STATE, USA
SI BREST
SE PDG-DOP-DCB-PFOM-PI
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
IF 1.75
TC 21
UR https://archimer.ifremer.fr/doc/2007/publication-2604.pdf
LA English
DT Article
DE ;Polyunsaturated fatty acids;Immunology;Hemocytes;Eicosapentaenoic acid 20 : 5n 3;Crassostrea gigas;Bivalves
AB The aim of this study was to assess the effect of dietary eicosapentaenoic acid (20:5n-3) on hemocyte parameters such as hemocyte concentration, phagocytosis, and non-stimulated reactive oxygen species (ROS) production in Pacific oysters Crassostrea gigas, as well on proximate biochemical and fatty acid compositions. One-year-old oysters (C. gigas) were fed T-Isochrysis aff. galbana(T-Iso), which is low in 20:5n-3, either alone or with supplements of a lipid emulsion rich in 20:5n-3 at 1%, 10% or 50% (dry weight of the algal ration) for up to 7 weeks. Changes in gill fatty acid composition demonstrated that the lipid emulsion was well ingested by oysters during the dietary conditioning. Biochemical analysis indicated that oysters fed supplements of 50% and, to a lesser extent, 10% lipid emulsions had a higher total lipid content compared with oysters fed other diets, suggesting a more advanced reproductive status for the oysters fed high doses of lipid emulsion. Moreover, some oysters in these two treatment groups spawned during the last three weeks of the seven-week feeding experiment. Lipid supplements had a significant influence on hemocyte concentration, phagocytic index and non-stimulated hemocyte ROS production. After 4 weeks, highest hemocyte concentrations were found in oysters fed on a supplement of 50% lipid emulsion compared with those fed on other diets but the hemocytes derived from these oysters had the lowest short-term phagocytic index. After 7 weeks of dietary conditioning, the ROS production in non-stimulated hemocytes of oysters fed 10% and 50% lipid emulsion declined. These results suggested that 20:5n-3, and perhaps its eicosanoid metabolites, affected oyster hemocyte functions; however, the reproductive status of oysters may also have interfered with the 20:5n-3 dietary effect. (c) 2007 Elsevier B.V. All rights reserved.
PY 2007
PD MAY
SO Journal of Experimental Marine Biology and Ecology
SN 0022-0981
PU Elsevier
VL 343
IS 2
UT 000245690500012
BP 261
EP 275
DI 10.1016/j.jembe.2006.12.021
ID 2604
ER

EF