Effect of dietary lipid on growth, body composition, serum biochemistry and hepatic metabolite alteration in Chinese rice field eel (Monopterus albus) fingerlings
文献类型： 外文期刊
作者： Yue, Huamei 1 ; Huang, Xianquan 1 ; Ruan, Rui 1 ; Ye, Huan 1 ; Li, Zhong 1 ; Li, Chuangju 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Peoples R China
2.Minist Agr & Rural Affairs China, Key Lab Freshwater Biodivers Conservat, Wuhan, Peoples R China
3.Bur Agr & Rural Affairs Zizhong Cty, Neijiang, Sichuan, Peoples R China
关键词： GC-MS; growth performance; hepatic metabolomics; lipid requirement; Monopterus albus; serum biochemistry
期刊名称：AQUACULTURE NUTRITION （ 影响因子：3.497； 五年影响因子：3.78 ）
ISSN： 1353-5773
年卷期：
页码：
收录情况： SCI
摘要： Five isonitrogenous and isocaloric diets containing dietary lipid concentrations from 71.90 to 142.70 g/kg were formulated and fed to Chinese rice field eelMonopterus albusfingerlings (5.00 +/- 0.50 g). The highest values of weight gain, specific growth rate (SGR), together with the lowest feed conversion ratio (FCR) were found in fish fed with 89.10 g/kg lipid diet. Fish fed with 71.90 g/kg diet (F1) had higher hepatosomatic index, viscerosomatic index and whole-body crude lipid than fish in the other four treatments (p < .05). Plasma concentration of triacylglycerol and the activity of alanine aminotransferase were also higher in fish fed with F1 diet. Whole-body fatty acid profile varied exclusively, but with a stable value of n-3/n-6 ratio. Gas chromatography-mass spectrometry-based metabolomics identified eighteen differential metabolites (including idose, alanine, glutamic acid, serine and hypotaurine) in liver affected by dietary lipid content using PLS-DA analysis. The subsequent pathway enrichment revealed ten affected pathways, with the top three pathways being glycine, serine and threonine metabolism; starch and sucrose metabolism; and D-glutamine and D-glutamate metabolism. The broken-line model of SGR suggested that a dietary lipid concentration of 83.50 g/kg was appropriate forM. albusfingerlings.
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