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学科主题: Biochemistry & Molecular Biology; Physiology; Zoology
题名: Nutritional homeostasis in carnivorous southern catfish (Silurus meridionalis): is there a mechanism for increased energy expenditure during carbohydrate overfeeding?
作者: Fu, SJ; Xie, XJ
通讯作者: Xie, XJ, SW China Normal Univ, Inst Fisheries Sci, Chongqing 400715, Peoples R China
关键词: carbohydrate overfeeding ; carnivorous fish ; diet-induced thermogenesis ; fasting metabolic rate ; Silurus meridionalis Chen ; nutritional homeostasis ; specific dynamic action ; substrate cycling
刊名: COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY
发表日期: 2004-11-01
DOI: 10.1016/j.cbpb.2004.10.003
卷: 139, 期:3, 页:359-363
收录类别: SCI
文章类型: Article
部门归属: SW 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
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Biochemistry & Molecular Biology ; Physiology ; Zoology
研究领域[WOS]: Biochemistry & Molecular Biology ; Physiology ; Zoology
摘要: In 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.
英文摘要: In 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.
关键词[WOS]: TROUT ONCORHYNCHUS-MYKISS ; DIET-INDUCED THERMOGENESIS ; BASS DICENTRARCHUS-LABRAX ; DYNAMIC ACTION ; METABOLIC-RATE ; MICROPTERUS-SALMOIDES ; SWIMMING PERFORMANCE ; LARGEMOUTH BASS ; HEAT INCREMENT ; PROTEIN
语种: 英语
WOS记录号: WOS:000225613300012
ISSN号: 1095-6433
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/9368
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.SW China Normal Univ, Inst Fisheries Sci, Chongqing 400715, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China

Recommended Citation:
S.J. Fu; X.J. Xie.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,2004,139(3):359-363
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