Effect of glutamine supplementation against soybean meal-induced growth retardation, hepatic metabolomics and transcriptome alterations in hybrid sturgeon Acipenser baerii?? A. schrenckii ?
文献类型： 外文期刊
作者： Yue, Huamei 1 ; Wu, Jinping 1 ; Fu, Peng 1 ; Ruan, Rui 1 ; Ye, Huan 1 ; Hu, Bin 2 ; Chen, Xihua 1 ; Li, Chuangju 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Key Lab Freshwater Biodivers Conservat, Minist Agr & Rural Affairs China, Wuhan 430223, Peoples R China
2.Fujian Tianma Sci & Technol Grp Co Ltd, Fujian Prov Key Lab Special Aquat Formula Feed, Fuqing 350308, Peoples R China
关键词： Soybean meal; Glutamine; Liver morphology; Metabolomics; Transcriptome
期刊名称：AQUACULTURE REPORTS （ 影响因子：3.385； 五年影响因子：3.645 ）
ISSN： 2352-5134
年卷期： 2022 年 24 卷
页码：
收录情况： SCI
摘要： This study aimed to evaluate the effects of glutamine supplementation to soybean meal (SBM) diet in hybrid sturgeon (25.00 +/- 1.00 g). Three diets, including fishmeal (FM) diet, SBM diet, and SBMG diet (glutamine addition to SBM diet), were formulated to feed sturgeons for 8 weeks. Growth parameters and muscular crude lipid content were reduced by SBM substitution, and were further increased in SBMG-diet group. In liver morphology detection, moderate lipid droplets accumulation in hepatocytes found in fish fed SBM diet were partially retrieved by glutamine addition. Hepatic gas chromatography-mass spectrometry analysis detected 156 up-regulated metabolites and 15 related KEGG pathways affected by SBM replacement. Glutamine addition resulted in 102 down-regulated metabolites, together with 9 KEGG pathways enriched. In liver transcriptome sequencing analysis, 1074 and 1564 differentially expressed unigenes (DEGs) were detected by SBM/FM and SBMG/SBM pairwise comparisons, respectively. The least number of DEGs (143) was present in pairwise comparison of SBMG /FM. Our results indicated that glutamine addition attenuated the SBM-based negative effect including growth retardation, and muscle proximate composition alteration. Glutamine supplementation alleviated the liver damage caused by SBM substitution possibly through down regulating the elevated levels of metabolites or gene as well as related metabolic pathways.
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