Effects of feeding and stocking density on digestion of cultured Atlantic salmon Salmo salar L.

doi:10.1007/s00343-015-3358-9

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	Effects of feeding and stocking density on digestion of cultured Atlantic salmon Salmo salar L.
	Sun Guoxiang 1,2; Zheng Jimeng1,2 ; Liu Baoliang 1; Liu Ying1 ; Liu, Y (reprint author), Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China.
	2014-11-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
卷号	32 期号:6 页码:1320-1328
文章类型	Article
摘要	The combined effects of feeding rate (0.8%, 1.0%, and 1.2% initial body weight/day), feeding frequency (two, three, and four times/day) and stocking density (10, 15, and 20 kg/m(3)) in recirculating aquaculture systems (RAS) on growth performance, digestion and waste generation of Atlantic salmon (Salmo salar L.) were investigated in an 8-week orthogonal experiment (L9(3)(3)) with a constant daily water renewal at 7.50% of total volume. No mortality occurred during the experimental period. Feed conversion ratio (FCR) varied from 0.90 to 1.13 and specific growth rate (SGR) ranged from 0.48% to 0.69%/day. SGR, thermal growth coefficient (TGC) and FCR were not significantly (P>0.05) affected by the three factors, while net protein utilization (NPU) was significantly (P<0.05) affected. Apparent digestibility coefficients (ADC) of dry matter in the present study were in the range 66.12%-73.55%. ADC in protein, lipid and energy were statistically different among all treatments and in the range of 90.07%-93.67%, 81.54%-89.15%, and 67.55%-71.87%, respectively. The proportion of mean total ammonia nitrogen excreted ranged from 1.37% to 1.64% of feed nitrogen at steady state, and the concentration of nitrogenous and phosphorus compounds were differently correlated to the three factors. The results will provide valuable reference data for culture management decisions in the Atlantic salmon farming industry.
关键词	AtL.ntic SaL.on SaL.o SaL.r L. Aquaculture Feeding Strategy Stocking Density Growth Digestion
学科领域	Marine & Freshwater Biology ; Oceanography
DOI	10.1007/s00343-015-3358-9
收录类别	SCI
语种	英语
WOS记录号	WOS:000344541900013
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/24211
专题	海洋生物技术研发中心
通讯作者	Liu, Y (reprint author), Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China.
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Sun Guoxiang,Zheng Jimeng,Liu Baoliang,et al. Effects of feeding and stocking density on digestion of cultured Atlantic salmon Salmo salar L.[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2014,32(6):1320-1328.
APA	Sun Guoxiang,Zheng Jimeng,Liu Baoliang,Liu Ying,&Liu, Y .(2014).Effects of feeding and stocking density on digestion of cultured Atlantic salmon Salmo salar L..CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,32(6),1320-1328.
MLA	Sun Guoxiang,et al."Effects of feeding and stocking density on digestion of cultured Atlantic salmon Salmo salar L.".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 32.6(2014):1320-1328.

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