FN Archimer Export Format
PT J
TI Reduced lipid intake leads to changes in digestive enzymes in the intestine but has minor effect on key enzymes of hepatic intermediary metabolism in rainbow trout (Oncorhynchus mykiss)
BT 
AF DUCASSE CABANOT, S
   ZAMBONINO-INFANTE, Jose-Luis
   RICHARD, N
   MEDALE, Francoise
   CORRAZE, Genevieve
   MAMBRINI, M
   ROBIN, Jean
   CAHU, Chantal
   KAUSHIK, Sadasivam
   PANSERAT, S
AS 1:1;2:2;3:1;4:1;5:1;6:3;7:2;8:2;9:1;10:1;
FF 1:;2:PDG-DOP-DCB-PFOM-ARN;3:;4:;5:;6:;7:PDG-DOP-DCB-PFOM-ARN;8:PDG-DOP-DCB-PFOM;9:;10:;
C1 INRA, UMR1067 Nutr Aquaculture & Genom, F-64310 St Pee Sur Nivelle, France.
   IFREMER, UMR1067 Nutr Aquaculture & Genom, Plouzane, France.
   INRA, Lab Genet Poissons, F-78350 Jouy En Josas, France.
C2 INRA, FRANCE
   IFREMER, FRANCE
   INRA, FRANCE
SI BREST
   ST PEE SUR NIVELLE
SE PDG-DOP-DCB-PFOM-ARN
   PDG-DOP-DCB-PFOM
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-p187
IF 0.994
TC 38
UR https://archimer.ifremer.fr/doc/2007/publication-3506.pdf
LA English
DT Article
DE ;Rainbow trout;Metabolism;Fish oil;Digestion;Aquaculture
AB For sustainable aquaculture, the removal of marine resource ingredients in fish diets is an important objective. While most studies focus on the replacement of fish oil by vegetable oil, little is known on the nutritional effects of presence (which corresponds to the control diet) or absence of dietary fish oil. We studied fatty acid composition of brush-border membranes and digestive enzyme activities of the intestine and measured the expression and activities of several enzymes involved in the hepatic intermediary metabolism of rainbow trout (Oncorhynchus mykiss) fed for 7 weeks with or without fish oil. The diets were pair-fed to ensure that fish fed either diet had comparable carbohydrate and protein intakes. Absence of fish oil significantly reduced growth rate, protein efficiency and plasma lipid components. Activities of intestinal digestive enzymes were significantly decreased in the anterior intestine in fish fed without fish oil. In liver, dietary fish oil removal did not affect the transcript levels or activities of the main enzymes involved in lipogenesis (fatty acid synthase) and fatty acid p-oxidation (3-hydroxyacyl-CoA dehydrogenase), glycolysis or amino acid oxidation. It lowered the expression of the genes coding for gluconeogenic enzymes (glucose-6-phosphatase and phosphoenolpyruvate carboxykinase), but their enzyme activities were not affected. The activities, but not gene expression of lipogenic enzymes, involved in NADPH and malonyl-CoA formation were also modified after fish oil removal as reflected by higher activities of isocitrate dehydrogenaselglucose-6-phosphate dehydrogenase and acetyl-CoA carboxylase enzymes. Overall, our results indicate that the intestinal digestive capacity was strongly modified by dietary fish oil removal, while hepatic intermediary metabolism was only marginally affected, in fed rainbow trout.
PY 2007
PD OCT
SO Animal
SN 1751-7311
PU Cambridge University Press
VL 1
IS 9
UT 000250857500006
BP 1272
EP 1282
DI 10.1017/S1751731107000596
ID 3506
ER

EF