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Nutritional homeostasis in carnivorous southern catfish (Silurus meridionalis): is there a mechanism for increased energy expenditure during carbohydrate overfeeding?
S.J. Fu; X.J. Xie; Xie, XJ, SW China Normal Univ, Inst Fisheries Sci, Chongqing 400715, Peoples R China
2004
Source PublicationCOMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY
Volume139Issue:3Pages:359-363
AbstractIn previous growth experiments with carnivorous southern catfish (Silurus meridionalis), the non-fecal energy lose was positively related to dietary. carbohydrate level. To test whether metabolic energy expenditure accounts for such energy loss, an experiment was performed with southern catfish juveniles (33.2-71.9 g) to study the effect of dietary carbohydrate level on fasting metabolic rate and specific dynamic action (SDA) at 27.5 degreesC. The fasting metabolic rate in this catfish was increased with dietary carbohydrate level, and the specific dynamic action (SDA) coefficient (energy expended on SDA as percent of assimilated energy) was not affected by dietary carbohydrate level. The results suggest that in southern catfish, carbohydrate overfeeding increases metabolic rate to oxidize unwanted assimilated carbohydrate. A discussion on the poor capacity of intermediate metabolism for adapting dietary carbohydrate in carnivorous fish and its possible relationship with facultative component of SDA was also documented in this paper. (C) 2004 Elsevier Inc. All rights reserved.
KeywordCarbohydrate Overfeeding Carnivorous Fish Diet-induced Thermogenesis Fasting Metabolic Rate Silurus Meridionalis Chen Nutritional Homeostasis Specific Dynamic Action Substrate Cycling
DepartmentSW China Normal Univ, Inst Fisheries Sci, Chongqing 400715, Peoples R China; Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Subject AreaBiochemistry & Molecular Biology ; Physiology ; Zoology
Indexed BySCI
WOS IDWOS:000225613300012
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Cited Times:35[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9368
Collection期刊论文
Corresponding AuthorXie, XJ, SW China Normal Univ, Inst Fisheries Sci, Chongqing 400715, Peoples R China
Recommended Citation
GB/T 7714
S.J. Fu,X.J. Xie,Xie, XJ, SW China Normal Univ, Inst Fisheries Sci, Chongqing 400715, Peoples R China. Nutritional homeostasis in carnivorous southern catfish (Silurus meridionalis): is there a mechanism for increased energy expenditure during carbohydrate overfeeding?[J]. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY,2004,139(3):359-363.
APA S.J. Fu,X.J. Xie,&Xie, XJ, SW China Normal Univ, Inst Fisheries Sci, Chongqing 400715, Peoples R China.(2004).Nutritional homeostasis in carnivorous southern catfish (Silurus meridionalis): is there a mechanism for increased energy expenditure during carbohydrate overfeeding?.COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY,139(3),359-363.
MLA S.J. Fu,et al."Nutritional homeostasis in carnivorous southern catfish (Silurus meridionalis): is there a mechanism for increased energy expenditure during carbohydrate overfeeding?".COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY 139.3(2004):359-363.
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