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Effects of arginine and/or N-carbamylglutamate supplementation on growth, biochemical composition and expression of growth-regulating factors of hybrid sturgeon (Acipenser schrenckii ? ? A. baerii ?) juveniles fed an arginine-deficient diet

文献类型： 外文期刊

作者： Li, Jinnan 1 ; Zhang, Yuanyuan 1 ; Fan, Ze 1 ; Wu, Di 1 ; Wang, Chang 'an 1 ; Xu, Qiyou 1 ; Liu, Hongbai 1 ; Li, Hongqin 3 ; Wang, Liansheng 1 ;

作者机构： 1.Heilongjiang River Fisheries Res Inst, Chinese Acad Fishery Sci, Key Lab Aquat Anim Dis & Immune Technol Heilongjia, Harbin 150070, Peoples R China

2.Huzhou Univ, Sch Life Sci, Huzhou, Peoples R China

3.New Hope Liuhe Co Ltd, Anim Feed Sci Res Inst, Chengdu 610101, Peoples R China

关键词： Hybrid sturgeon; N-carbamylglutamate; Arginine; Growth; GH; IGF -I gene expression

期刊名称：ANIMAL FEED SCIENCE AND TECHNOLOGY （ 影响因子：3.313； 五年影响因子：3.914 ）

ISSN： 0377-8401

年卷期： 2022 年 285 卷

页码：

收录情况： SCI

摘要： A 2 x 3 factorial experiment was carried out to determine the roles of arginine (Arg) and/or Ncarbamylglutamate (NCG) supplemented in diet on growth, biochemical composition as well as mRNA expression levels of growth hormone/insulin-like growth factor-I (GH/IGF-I) in the hybrid sturgeon (Acipenser schrenckii female xA. baerii male) juveniles raised by the Arg-deficient diet. 30 fish pre tank was fed with each diet (Arg levels: 0% and 1%; NCG levels: 0%, 0.05% and 0.1%) for 8 weeks with three replications for each group. Fish supplemented with 0.1% NCG showed significantly increased final body weight, weight gain rate and protein efficiency ratio, whereas decreased feed conversion ratio compared with those supplemented with 0% NCG (P < 0.05). Dietary Arg or NCG reduced the body moisture but elevated the body crude lipid (P < 0.05). Body crude protein content was significantly increased by the addition of 0.05% NCG (P < 0.05). The Arg concentration of the carcass was significantly affected by dietary Arg and NCG levels (P < 0.05). Dietary NCG supplementation significantly increased the NO concentrations (P < 0.05). The hepatic nitric oxide synthase (NOS) activity in fish supplemented with 0.1% NCG significantly increased relative to that in those supplemented with 0% NCG (P < 0.05). Dietary NCG supplementation markedly increased IGF-I mRNA expression level(P < 0.05). Besides, GH mRNA expression level in 0.1% NCG groups evidently increased relative to those in 0% NCG groups. These results indicated that dietary supplementation with 1% Arg and/or 0.1% NCG could improve growth performance and increase Arg concentration and the GH/IGF-1 gene expression of hybrid sturgeon fed an Arg-deficient diet.

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