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学科主题: Fisheries; Marine & Freshwater Biology
题名: Effect of ration and body size on the energy budget of juvenile white sturgeon
作者: Cui, Y ; Hung, SSO ; Zhu, X
关键词: growth ; energy budget ; ration ; body size ; Acipenser transmontanus
刊名: JOURNAL OF FISH BIOLOGY
发表日期: 1996
卷: 49, 期:5, 页:863-876
收录类别: SCI
部门归属: UNIV CALIF DAVIS,DEPT ANIM SCI,DAVIS,CA 95616; WUHAN UNIV,INST HYDROBIOL,WUHAN 430072,HUBEI,PEOPLES R CHINA
摘要: Growth and energy budget were measured for three sizes(2.4, 11.1 and 22.5 g) of juvenile white sturgeon Acipenser transmontanus held at 18.5 degrees C and fed tubificid worms at different levels ranging from starvation to ad libitum. For each size-class, specific growth rate increased linearly with increasing ration, and conversion efficiency was highest at the maximum ration. Growth rate decreased with increasing fish size at the maximum ration, but increased with size al each restricted ration. Conversion efficiency increased with increasing ration for each size-class and was usually highest at the maximum ration. Faecal production accounted for 3.2-5.2% of food energy. The proportion of food energy lost in nitrogenous excretion decreased with increasing ration. With increases in ration, the allocation of metabolizable energy to metabolism decreased, while that to growth increased. Fish size had no significant effect on the allocation of metabolizable energy to metabolism or growth. Al the maximum ration, on average 64.9% of metabolizable energy was spent on metabolism, and 35.1% on growth. (C) 1996 The Fisheries Society of the British Isles
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/10286
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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Cui, Y; Hung, SSO; Zhu, X.Effect of ration and body size on the energy budget of juvenile white sturgeon,JOURNAL OF FISH BIOLOGY,1996,49(5):863-876
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