动物营养学报 >

2020 , Vol. 32 >Issue 2: 836 - 846

DOI: https://doi.org/10.3969/j.issn.1006-267x.2020.02.039

水产动物营养与饲料 AQUATIC ANIMAL NUTRITION AND FEED

儿茶素对草鱼生长性能、血清抗氧化指标和肌肉品质的影响

  • 徐禛 ,
  • 杨航 ,
  • 姜维波 ,
  • 李小勤 ,
  • 冷向军
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  • 1. 上海海洋大学水产科学国家级实验教学示范中心, 上海 201306;
    2. 上海海洋大学农业部鱼类营养与环境生态研究中心, 上海 201306;
    3. 上海海洋大学水产动物遗传育种中心上海市协同创新中心, 上海 201306
徐禛(1992-),男,河北秦皇岛人,博士研究生,从事水产动物营养与饲料方面的研究。E-mail:981428643@qq.com

收稿日期: 2019-07-31

  网络出版日期: 2020-02-21

基金资助

国家自然科学基金项目（31772858）；卓越农林人才教育培养计划（A1-0201-00-0001）

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Effects of Catechin on Growth Performance, Serum Anti-Oxidation Indicators and Muscle Quality of Grass Carp (Ctenopharyngodon idella)

  • XU Zhen ,
  • YANG Hang ,
  • JIANG Weibo ,
  • LI Xiaoqin ,
  • LENG Xiangjun
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  • 1. National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China;
    2. Centre for Research on Environmental Ecology and Fish Nutrition(CREEFN) of the Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China;
    3. Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai 201306, China

Received date: 2019-07-31

  Online published: 2020-02-21

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摘要

本试验旨在研究儿茶素对草鱼生长性能、血清抗氧化指标和肌肉品质的影响。试验选取平均体质量为（18.5±0.2）g的草鱼360尾，随机分为6组，分别饲喂在基础饲料中添加0（对照组）、0.1、0.3、0.5、0.7和0.9 g/kg儿茶素的6种饲料，每组3个重复，每个重复20尾。试验期60 d。结果表明：1）随着儿茶素的添加，各组间鱼体增重率和饲料系数无显著差异（P>0.05），添加0.5、0.7和0.9 g/kg儿茶素显著提高了鱼体肥满度（P<0.05），显著降低了血清丙二醛含量（P<0.05）。除0.1 g/kg组外，其余各儿茶素添加组血清超氧化物歧化酶活性均显著高于对照组（P<0.05），各组间在血清碱性磷酸酶和过氧化氢脱氢酶活性上无显著差异（P>0.05）。2）在肌肉游离氨基酸和脂肪酸组成方面，0.5、0.7 g/kg组的总氨基酸、呈味氨基酸含量和C20：5、n-3不饱和脂肪酸含量显著高于对照组（P<0.05）。3）各组间在肌肉水分、粗蛋白质、粗脂肪、粗灰分含量及肌肉质构特性、肌肉失水率以及肌纤维密度和直径上差异均不显著（P>0.05），但0.7和0.9 g/kg组的肌肉胶原蛋白含量显著高于对照组（P<0.05）。上述结果显示，儿茶素对草鱼生长性能没有显著影响，可提高血清抗氧化能力，在一定程度上改善肌肉品质。草鱼饲料中儿茶素的推荐添加量为0.5~0.7 g/kg。

关键词： 草鱼; 儿茶素; 生长性能; 抗氧化; 肌肉品质

本文引用格式

徐禛 , 杨航 , 姜维波 , 李小勤 , 冷向军 . 儿茶素对草鱼生长性能、血清抗氧化指标和肌肉品质的影响[J]. 动物营养学报, 2020 , 32(2) : 836 -846 . DOI: 10.3969/j.issn.1006-267x.2020.02.039

Abstract

To investigate the effects of catechin on the growth performance, anti-oxidation indicators and muscle quality of grass carp (Ctenopharyngodon idella), a total of 360 grass carp with an initial body weight of (18.5±0.2) g were selected and randomly divided into six groups, fed six diets with 0 (control diet), 0.1, 0.3, 0.5, 0.7, 0.9 g/kg catechin, respectively, with three replicates per group and 20 fish per replicate. The experimental period was 60 d. The results showed as follows:1) the weight gain and feed conversion ratio showed no significant difference among groups (P>0.05), while the condition factor was significantly increased and serum malondialdehyde (MDA) content was significantly decreased by the addition of 0.5 and 0.7 g/kg catechin (P<0.05). Dietary catechin significantly increased serum superoxide gasification enzyme (SOD) activity (P<0.05) except the addition of 0.1 g/kg catechin, while alkaline phosphatase (AKP) and hydrogen peroxide dehydrogenase (CAT) activities showed no significant difference among groups (P>0.05). 2) The inclusion of 0.5 and 0.7 g/kg catechin significantly increased the total free amino acids and the delicious free amino acids contents in muscle, and the C20:5 and polyunsaturated fatty acids (n-3PUFA) contents were also significantly increased compared with the control group (P<0.05). 3) No significant differences were observed in muscle proximate composition, texture characteristics, water-holding capacity and muscle histology among all groups (P>0.05), but muscle collagen content was significantly increased by the addition of 0.7 and 0.9 g/kg catechin (P<0.05). In conclusion, dietary catechin has no significant effect on growth performance, but can improve the serum anti-oxidant ability and muscle quality of grass carp, and the recommended addition of catechin are 0.5 to 0.7 g/kg.

Key words： grass carp; catechin; growth performance; anti-oxidation; muscle quality

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