水产营养 Aquaculture Nutrition

投喂频率对团头鲂幼鱼生长性能、肌肉品质和血浆生化指标的影响

  • 林艳 ,
  • 缪凌鸿 ,
  • 戈贤平 ,
  • 刘波 ,
  • 谢骏
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  • 1. 南京农业大学渔业学院, 无锡 214081;
    2. 中国水产科学研究院淡水渔业研究中心, 农业部淡水鱼类遗传育种和养殖生物学重点开放实验室, 无锡 214081

收稿日期: 2015-03-23

  网络出版日期: 2015-09-12

基金资助

国家自然科学基金项目(31472289);现代农业产业技术体系建设专项资金资助(CARS-46);公益性行业(农业)科研专项经费资助(201003020)

Effects of Feeding Frequency on Growth Performance, Muscle Quality and Plasma Biochemical Indices of Megalobrama amblycephala Juvenile

  • LIN Yan ,
  • MIAO Linghong ,
  • GE Xianping ,
  • LIU Bo ,
  • XIE Jun
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  • 1. Fishery college, Nanjing Agriculture University, Wuxi 214081, China;
    2. Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China

Received date: 2015-03-23

  Online published: 2015-09-12

摘要

为了探讨团头鲂幼鱼的适宜投喂频率,试验选用初始均重为(1.007±0.004) g的团头鲂幼鱼540尾,随机分为6组(每天分别投喂1、2、3、4、5和6次),每组3个重复,每个重复30尾。在循环流水控温养殖系统中饲养10周后,测定鱼体生长指标、肌肉常规营养成分和血浆生化指标。结果表明:1)与每天投喂1、2、6次相比,每天投喂5次能够显著提高增重率、特定生长率(P<0.05);与每天投喂2、6次相比,每天投喂1和5次可显著降低饲料系数(P<0.05)。2)与每天投喂1、3次相比,每天投喂4次能够显著降低鱼体肌肉中水分含量(P<0.05);与每天投喂1、2、3次相比,每天投喂5次可显著提高鱼体肌肉中粗脂肪含量(P<0.05)。3)随着投喂频率的增加,血浆总蛋白、总胆固醇、低密度脂蛋白和高密度脂蛋白含量均呈现先上升后下降的趋势,且均以每天投喂5次时最高,且此时血浆葡萄糖含量最低。根据本试验结果得出,在循环流水水控温养殖方式下,投喂频率为每天5次时团头鲂幼鱼可获得快速、健康的生长,且依然可保持鱼体肌肉品质,因此建议团头鲂幼鱼养殖的投喂频率为每天5次。

本文引用格式

林艳 , 缪凌鸿 , 戈贤平 , 刘波 , 谢骏 . 投喂频率对团头鲂幼鱼生长性能、肌肉品质和血浆生化指标的影响[J]. 动物营养学报, 2015 , 27(9) : 2749 -2756 . DOI: 10.3969/j.issn.1006-267x.2015.09.013

Abstract

In order to study the optimum feeding frequency of Megalobrama amblycephala juvenile, a total of 540 individuals of Megalobrama amblycephala juvenile with the initial average weight of (1.007±0.004) g were divided into 6 groups (feeding 1, 2, 3, 4, 5 and 6 times everyday, respectively), and each group has 3 replicates with 30 juvenile per replicate which were cultured in closed aquarium with automatic temperature control culturing system with recycling water for 10 weeks. After that, fish growth indices, muscle common components and plasma biochemical indices were measured. The results showed as follows: 1) feeding 5 times one day could significantly improve the weight gain rate and specific growth rate compared with feeding 1, 2 and 6 times one day (P<0.05), while feeding 1 and 5 times one day could significantly reduce feed conversation ratio compared with feeding 2 and 6 times one day (P<0.05). 2) Feeding 4 times one day could significantly reduce the muscle moisture content of fish compared with feeding 1 and 3 times one day (P<0.05), and feeding 5 times one day could significantly increase muscle crude lipid content of fish compared with feeding 1, 2 and 3 times one day (P<0.05). 3) With the feeding frequency increasing, plasma total protein, total cholesterol, low-density lipoprotein cholesterol and high-density lipoprotein cholesterol contents were firstly increased and then decreased, and the highest values of them were found when feeding frequency was 5 times one day, at the same time, the plasma glucose content was the lowest. According to the results of this experiment, the feeding frequency of feeding 5 times one day can make a fast and healthy growth of Megalobrama amblycephala juvenile cultured in closed aquarium with automatic temperature control culturing system with recycling water, and the mucle quality can be still keeped. So we suggest the feeding frequency for Megalobrama amblycephala juvenile is 5 times one day.

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