PMID- 18586542
OWN - NLM
STAT- MEDLINE
DCOM- 20080915
LR  - 20131121
IS  - 1531-4332 (Electronic)
IS  - 1095-6433 (Linking)
VI  - 151
IP  - 1
DP  - 2008 Sep
TI  - Effect of water temperature and dietary starch on growth and metabolic 
      utilization of diets in gilthead sea bream (Sparus aurata) juveniles.
PG  - 45-50
LID - 10.1016/j.cbpa.2008.05.013 [doi]
AB  - We evaluated the effect of dietary starch level on growth performance, feed 
      utilization, whole-body composition and activity of selected key enzymes of 
      intermediary metabolism in gilthead sea bream juveniles reared at 18 and 25 
      degrees C. A diet was formulated to contain 48% crude protein, 12% lipids and 30% 
      gelatinized maize starch (diet 30GS). Two other diets were formulated to include 
      the same level of ingredients as diet 30GS except for the gelatinized starch, 
      which was included at 20% (diet 20GS) or 10% (diet 10GS). No adjustment to diet 
      composition was otherwise made. Each diet was fed to triplicate groups of 
      gilthead sea bream (30 g initial mass) for 8 weeks, on a pair-feeding scheme. The 
      higher temperature improved growth performance but the opposite was true for feed 
      efficiency and protein efficiency ratio. Independently of temperature, growth 
      performance, feed efficiency and protein efficiency ratio were lower in fish fed 
      diet 30GS. No effect of temperature or dietary starch level on whole-body 
      composition was noticed. Hepatosomatic index and liver glycogen were higher at 18 
      degrees C and, within each temperature, in fish fed diet 30GS. Glycemia was not 
      affected by temperature, but was lower in fish fed diet 10GS. Data on enzyme 
      activities showed that increasing water temperature enhances liver glucokinase 
      (GK) and pyruvate kinase (PK) activities, suggesting that gilthead sea bream is 
      more apt to use dietary starch at higher temperatures. No effect of temperature 
      was noticed on hexokinase (HK), fructose-1,6-bisphosphatase (FBPase), 
      glucose-6-phosphate dehydrogenase (G6PD) and glutamate dehydrogenase (GDH) 
      activities. Dietary starch enhanced PK and FBPase activities while depressed GDH 
      activity, suggesting a lack of significant regulation of hepatic glucose 
      utilization and production in this species. HK, GK and G6PD activities were 
      unaffected by dietary composition. Irrespectively of water temperature, 
      gelatinized starch may be included up to 20% in diets for gilthead sea bream 
      juveniles; at higher dietary levels, growth and efficiency of feed utilization 
      are depressed.
FAU - Couto, A
AU  - Couto A
AD  - Departamento de Zoologia e Antropologia, Faculdade de Ciencias, Universidade do 
      Porto, 4099-002 Porto, Portugal.
FAU - Enes, P
AU  - Enes P
FAU - Peres, H
AU  - Peres H
FAU - Oliva-Teles, A
AU  - Oliva-Teles A
LA  - eng
PT  - Clinical Trial
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20080630
PL  - United States
TA  - Comp Biochem Physiol A Mol Integr Physiol
JT  - Comparative biochemistry and physiology. Part A, Molecular & integrative 
      physiology
JID - 9806096
RN  - 0 (Amino Acids)
RN  - 0 (Blood Glucose)
RN  - 0 (Dietary Carbohydrates)
RN  - 059QF0KO0R (Water)
RN  - 9005-25-8 (Starch)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Amino Acids/metabolism
MH  - Analysis of Variance
MH  - Animals
MH  - Blood Glucose/metabolism
MH  - Body Composition/drug effects
MH  - *Diet
MH  - Dietary Carbohydrates/*pharmacology
MH  - Energy Metabolism/drug effects
MH  - Gluconeogenesis/drug effects
MH  - Glycolysis/drug effects
MH  - Lipogenesis/drug effects
MH  - Nitrogen/metabolism
MH  - Sea Bream/*growth & development/*metabolism
MH  - Starch/*pharmacology
MH  - *Temperature
MH  - Water/*physiology
EDAT- 2008/07/01 09:00
MHDA- 2008/09/16 09:00
CRDT- 2008/07/01 09:00
PHST- 2008/01/08 00:00 [received]
PHST- 2008/05/23 00:00 [revised]
PHST- 2008/05/24 00:00 [accepted]
PHST- 2008/07/01 09:00 [pubmed]
PHST- 2008/09/16 09:00 [medline]
PHST- 2008/07/01 09:00 [entrez]
AID - S1095-6433(08)00783-6 [pii]
AID - 10.1016/j.cbpa.2008.05.013 [doi]
PST - ppublish
SO  - Comp Biochem Physiol A Mol Integr Physiol. 2008 Sep;151(1):45-50. doi: 
      10.1016/j.cbpa.2008.05.013. Epub 2008 Jun 30.