Influence of stocking density on growth, body composition and energy budget of Atlantic salmon Salmo salar L. in recirculating aquaculture systems

IOCAS-IR

	Influence of stocking density on growth, body composition and energy budget of Atlantic salmon Salmo salar L. in recirculating aquaculture systems
	Liu BL(刘宝良); Liu Y(刘鹰); Liu ZY(刘子毅); Chou DG(仇登高); Sun GX(孙国祥); Li X(李贤)
发表期刊	Chinese Journal of Oceanology and Limnology
ISSN	0254-4059
	2014-09-15
出版年	2014
卷号	v.32 期号:05 页码:12-20
文献类型	CNKI期刊论文
摘要	Atlantic salmon Salmo salar were reared at four stocking densities—high density D 1(final density ~39 kg/m 3), medium densities D 2(~29 kg/m 3) and D 3(~19 kg/m 3), and low density D 4(~12 kg/m 3)—for 40 days to investigate the effect of stocking density on their growth performance, body composition and energy budgets. Stocking density did not significantly affect specific growth rate in terms of weight(SGR w) but did affect specific growth rate in terms of energy(SGR e). Stocking density significantly influenced the ration level(RL w and RL e), feed conversion ratio(FCR w and FCR e) and apparent digestibility rate(ADR). Ration level and FCR w tended to increase with increasing density. Fish at the highest density D 1 and lowest density D 4 showed lower FCR e and higher ADR than at medium densities. Stocking density significantly affected protein and energy contents of the body but did not affect its moisture, lipid, or ash contents. The expenditure of energy for metabolism in the low-density and high-density groups was lower than that in the medium-density groups. Stocking density affected energy utilization from the feces but had no effect on excretion rate. The greater energy allocation to growth at high density and low density may be attributed to reduced metabolic rate and increased apparent digestibility rate. These findings provide information that will assist selection of suitable stocking densities in the Atlantic-salmon-farming industry.
关键词	stocking density Atlantic salmon growth body composition energy budget recirculating aquaculture system
CNKI专辑号	A;D;
CNKI专辑名称	基础科学;农业科技;
CNKI专题号	D052;
CNKI专题名称	水产和渔业;
分类号	S965.232
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	Supported by the National Natural Science Foundation of China(No.31240012) ; the Earmarked Fund for Modern Agro-industry Technology Research System ; the Special Foundation for Postdoctoral Innovative Projects of Shandong Province(No.201101009) ; the National Key Technology R&D Program of China(No.2011BAD13B04) ; The Key Laboratory of Mariculture(KLM),Ministry of Education,Ocean University of China(OUC)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/190312
专题	中国科学院海洋研究所
作者单位	InstituteofOceanology,ChineseAcademyofSciences
推荐引用方式 GB/T 7714	Liu BL,Liu Y,Liu ZY,et al. Influence of stocking density on growth, body composition and energy budget of Atlantic salmon Salmo salar L. in recirculating aquaculture systems. 2014.