TY - JOUR T1 - Regulation of feed intake, growth, nutrient and energy utilisation in European sea bass (Dicentrarchus labrax) fed high fat diets A1 - Boujard,Thierry A1 - Gelineau,Anne A1 - Coves,Denis A1 - Corraze,Genevieve A1 - Dutto,Gilbert A1 - Gasset,Eric A1 - Kaushik,Sadasivam AD - IFREMER, Stn Expt Aquaculture, Lab Rech Piscicole Mediterraneee, F-34250 Palavas Les Flots, France. AD - INRA, Stn Hydrobiol, IFREMER, Unite Mixte,Lab Nutr Poissons, F-64310 St Pee Sur Nivelle, France. UR - https://archimer.ifremer.fr/doc/00000/392/ DO - 10.1016/j.aquaculture.2003.11.010 KW - Phosphorus excretion KW - Feed intake KW - Lipid KW - Digestible energy KW - European sea bass KW - Dicentrarchus labrax N2 - Three practical isoproteic (54% protein) diets were formulated to contain graded levels of crude fat (diet L: 10%, diet M: 20% and diet H: 30%). Each diet was assigned unrestrictedly to three and restrictedly to two replicate groups of fish (IBW 243 g). In unrestricted groups, increasing the dietary lipid level led to a significant decrease in voluntary feed intake without affecting growth rate. In the feed-restricted groups, daily growth rates increased with increasing dietary fat levels. There was a significant and inverse effect of the dietary fat content on whole body moisture and fat levels, with highest lipid (ca. 20%) and lowest moisture (ca. 58%) contents in sea bass fed diet containing the highest lipid level; muscle lipid concentration was however not affected. Nitrogen retention was significantly increased by an increase in lipid concentration in the diets, with better efficiencies observed in unrestricted (ca. 31%) than in restricted groups (ca. 27%). Nitrogen loss was significantly affected by both the feeding level and the diet composition, with lowest values (ca. 60 g kg(-1)) in groups fed diet H unrestrictedly and highest values (ca. 90 g kg(-1)) in groups fed diet L at a restricted level. Soluble phosphorus excretion in H groups was less than half that in L groups, regardless of the feeding level. Y1 - 2004/03 PB - Elsevier JF - Aquaculture SN - 0044-8486 VL - 231 IS - 1-4 SP - 529 EP - 545 ID - 392 ER -