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Quantitative dietary lysine requirement for juvenile Sebastes schlegeli
Yan Quan-Gen; Xie Shou-Qi (sqxie@ihb.ac.cn); Lei Wu; Zhu Xiao-Ming; Yang Yun-Xia; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2006
Source PublicationActa Hydrobiologica Sinica
ISSN1000-3207
Volume30Issue:4Pages:459-465
AbstractA 8-week growth trial was conducted to determine the quantitative dietary lysine requirement for juvenile Sebastes schlegeli Semipurified diets were formulated to be isonitrogenous and isoenergetic (48.50% crude protein and 18.04kJ/g gross energy) Crystalline L-amino acids were use to provide part of dietary protein. The amino acid pattern except lysine of the muscle protein of Sebastes schlegeli was used as reference. Six diets were formulated to contain 15.4, 20.4, 25.4, 30.4, 35.4 or 40.4g lysine kg(-1) dry matter. The experiment was conducted in triplicates in 84-1 indoor flow-through circular conical tanks at 19.5 +/- 0.5 degrees C and 30 parts per thousand - 34 parts per thousand salinity. The results showed that dietary lysine level significantly affected weight gain ( WG), food conversion ratio ( FCR), protein retention efficiency ( PREI) and activity of serum glutamic-oxalacetic transaminase (AST) and glutamic-pyruvic transaminase (ALT). With increase in dietary lysine level, weight gain increased while highest value was observed at 3.54% dietary lysine level. Protein retention efficiency was lower in the fish fed the basal diet ( P < 0.05). Food conversion ratio decreased with increasing dietary lysine and showed lowest value at 3.54% dietary lysine group( P < 0.05). No significant difference ( P > 0. 05) was found in feeding rate ( FR), energy retention efficiency ( ERE), hepatosomatic index (HSI), content of serum triglyceride and cholesterol, body composition of protein, lipid, ash, dry matter and energy. By regression, the optimal dietary lysine requirement for maximum growth of Sebastes schlegeli was 2.99% of dry matter of 6.16% of protein.
Indexed By其他
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/18347
Collection期刊论文
Corresponding AuthorYan Quan-Gen; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Yan Quan-Gen,Xie Shou-Qi ,Lei Wu,et al. Quantitative dietary lysine requirement for juvenile Sebastes schlegeli[J]. Acta Hydrobiologica Sinica,2006,30(4):459-465.
APA Yan Quan-Gen,Xie Shou-Qi ,Lei Wu,Zhu Xiao-Ming,Yang Yun-Xia,&Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2006).Quantitative dietary lysine requirement for juvenile Sebastes schlegeli.Acta Hydrobiologica Sinica,30(4),459-465.
MLA Yan Quan-Gen,et al."Quantitative dietary lysine requirement for juvenile Sebastes schlegeli".Acta Hydrobiologica Sinica 30.4(2006):459-465.
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