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Growth and energy budget of juvenile lenok Brachymystax lenok in relation to ration level
Liu Yang1,2,3; Li Zhongjie1; Zhang Tanglin1; Yuan Jing1; Mou Zhenbo3; Liu Jiashou1; Liu, JS (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
2015-03-01
Source PublicationCHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN0254-4059
Volume33Issue:2Pages:347-355
AbstractWe evaluated the effect of ration level (RL) on the growth and energy budget of lenok Brachymystax lenok. Juvenile lenok (initial mean body weight 3.06 +/- 0.13 g) were fed for 21 d at five different ration levels: starvation, 2%, 3%, 4% bwd (body weight per day, based on initial mean values), and apparent satiation. Feed consumption, apparent digestibility, and growth were directly measured. Specific growth rates in terms of wet weight, dry weight, protein, and energy increased logarithmically with an increase in ration levels. The relationship between specific growth rate in terms of wet weight (SGR(w), %/d) and RL (%) was characterized by a decelerating curve: SGR(w)=-1.417+3.166ln(RL+1). The apparent digestibility coefficients of energy exhibited a decreasing pattern with increasing ration level, and there was a significant difference among different RLs. Body composition was significantly affected by ration size. The relationship between feed efficiency rate in terms of energy (FERe) and RL was: FERe=-14.167+23.793RL-3.367(RL)(2), and the maximum FERe was observed at a 3.53% ration. The maintenance requirement for energy of juvenile lenok was 105.39 kJ BW (kg)(-0.80)/d, the utilization efficiency of DE for growth was 0.496. The energy budget equation at satiation was: 100IE=29.03FE+5.78(ZE+UE)+39.56 HE+25.63 RE, where IE is feed energy, FE is fecal energy, ZE+UE is excretory energy, HE is heat production, and RE is recovered energy. Our results suggest that the most suitable feeding rate for juvenile lenok aquaculture for wet weight growth is 2.89% bwd, whereas for energy growth, the suggested rate is 3.53% bwd at this growth stage.
SubtypeArticle
KeywordRation Level Growth Energy Budget Brachymystax Lenok
Department[Liu Yang ; Li Zhongjie ; Zhang Tanglin ; Yuan Jing ; Liu Jiashou] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China ; [Liu Yang] Univ Chinese Acad Sci, Beijing 100049, Peoples R China ; [Liu Yang ; Mou Zhenbo] Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Harbin 150070, Peoples R China
DOI10.1007/s00343-015-3349-x
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS IDWOS:000351156800007
WOS KeywordSALMO-TRUTTA L ; FOOD-CONSUMPTION ; NITROGENOUS EXCRETION ; OREOCHROMIS-NILOTICUS ; RAINBOW-TROUT ; NILE TILAPIA ; BODY-SIZE ; TEMPERATURE ; BIOENERGETICS ; CATFISH
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/23865
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorLiu, JS (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Harbin 150070, Peoples R China
Recommended Citation
GB/T 7714
Liu Yang,Li Zhongjie,Zhang Tanglin,et al. Growth and energy budget of juvenile lenok Brachymystax lenok in relation to ration level[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2015,33(2):347-355.
APA Liu Yang.,Li Zhongjie.,Zhang Tanglin.,Yuan Jing.,Mou Zhenbo.,...&Liu, JS .(2015).Growth and energy budget of juvenile lenok Brachymystax lenok in relation to ration level.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,33(2),347-355.
MLA Liu Yang,et al."Growth and energy budget of juvenile lenok Brachymystax lenok in relation to ration level".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 33.2(2015):347-355.
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