动物营养学报 >

2014 , Vol. 26 >Issue 1: 153 - 160

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.01.020

水产营养 Aquaculture Nutrition

饲料糖脂比对方格星虫稚虫生长、体成分和消化酶活性的影响

  • 张琴 ,
  • 许明珠 ,
  • 童潼 ,
  • 童万平 ,
  • 董兰芳 ,
  • 程光平 ,
  • 邹杰 ,
  • 蒋艳
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  • 1. 广西壮族自治区海洋研究所, 广西海洋生物技术重点实验室, 北海 536000;
    2. 广西大学动物科学技术学院, 南宁 530005

收稿日期: 2013-07-16

  网络出版日期: 2013-12-24

基金资助

广西自然科学基金项目（2011GXNSFB018057）；广西科学研究与技术开发计划（桂科攻11107011-6，桂科合1346011-12）；北海市科学研究与技术开发计划项目（北科合201153009）；广西创新计划专项经费项目（2012cxjhA014）

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Effects of Dietary Carbohydrate/Lipid Ratio on Growth, Body Composition and Digestive Enzyme Activities of Juvenile Peanut Worm, Sipunculus nudus Linnaeus

  • ZHANG Qin ,
  • XU Mingzhu ,
  • TONG Tong ,
  • TONG Wanping ,
  • DONG Lanfang ,
  • CHENG Guangping ,
  • ZOU Jie ,
  • JIANG Yan
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  • 1. Guangxi Institute of Oceanology, Key Laboratory of Marine Biotechnology of Guangxi, Beihai 536000, China;
    2. Animal Science and Technology College, Guangxi University, Nanning 530005, China

Received date: 2013-07-16

  Online published: 2013-12-24

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摘要

本试验旨在研究饲料糖脂比对方格星虫稚虫生长、体成分和消化酶活性的影响。配制5种不同糖脂比（0.68、1.02、1.62、2.61和4.35）的等氮等能饲料，分别饲喂初始体重为（16.77±0.40） mg的5组方格星虫稚虫8周。每组3个重复，每个重复400条。结果表明：饲料糖脂比对方格星虫稚虫的成活率没有显著影响（P>0.05），对增重率和特定生长率有显著影响（P<0.05）。方格星虫稚虫的增重率和特定生长率随饲料糖脂比的增大先升后降，当饲料糖脂比为2.61（糖含量为20.64%，粗脂肪含量为7.92%）时，方格星虫稚虫的增重率和特定生长率最高，分别为451.78%和3.41%/d。饲料糖脂比对虫体水分、粗蛋白质和粗脂肪含量均有显著影响（P<0.05），而对虫体粗灰分含量没有显著影响（P>0.05）。当饲料糖脂比为4.35（糖含量为24.56%，粗脂肪含量为5.64%）时，水分、粗蛋白质含量最高，粗脂肪含量最低，并与饲料糖脂比为0.68（糖含量为10.48%，粗脂肪含量为15.43%）时有显著差异（P<0.05）。饲料糖脂比对淀粉酶和脂肪酶活性有显著影响（P<0.05），对蛋白酶活性无显著影响（P>0.05）。以增重率为评价指标，经回归分析得出方格星虫稚虫饲料中最适糖脂比为2.42。

关键词： 方格星虫稚虫; 糖脂比; 生长; 体成分; 消化酶活性

本文引用格式

张琴 , 许明珠 , 童潼 , 童万平 , 董兰芳 , 程光平 , 邹杰 , 蒋艳 . 饲料糖脂比对方格星虫稚虫生长、体成分和消化酶活性的影响[J]. 动物营养学报, 2014 , 26(1) : 153 -160 . DOI: 10.3969/j.issn.1006-267x.2014.01.020

Abstract

This experiment was conducted to investigate the effects of dietary carbohydrate/lipid ratio on growth, body composition and digestive enzyme activities of juvenile peanut worm, Sipunculus nudus Linnaeus. Five groups of juvenile peanut worms with an average body weight of (16.77±0.40) mg were fed 5 isonitrogenous and isoenergetic diets with different carbohydrate/lipid ratios (0.68, 1.02, 1.62, 2.61 and 4.35, respectively) for 8 weeks. Each group had 3 replicates and 400 juvenile peanut worms in each replicate. The results showed that dietary carbohydrate/lipid ratio had no significant effect on survival ratio of juvenile peanut worm (P>0.05), but had significant effects on weight gain rate (WGR) and specific gain rate (SGR) (P<0.05). With the dietary carbohydrate/lipid ratio increasing, the WGR and SGR of juvenile peanut worm were firstly increased and then decreased. When the dietary carbohydrate/lipid ratio was 2.61 (carbohydrate content was 20.64%, and crude lipid content was 7.92%), both WGR and SGR reached the maximum values, they were 451.78% and 3.41%/d, respectively. Dietary carbohydrate/lipid ratio had significant effects on the contents of body moisture, crude protein and crude lipid (P<0.05), but had no significant effect on body ash content of juvenile peanut worm (P>0.05). The contents of moisture and crude protein were the highest and the crude lipid content was the lowest when the dietary carbohydrate/lipid ratio was 4.35 (carbohydrate content was 24.56%, and crude lipid content was 5.64%), and there were significant differences compared with the dietary carbohydrate/lipid ratio was 0.68 (carbohydrate content was 10.48%, and crude lipid content was 15.43%). Dietary carbohydrate/lipid ratio had significant effects on the activities of amylase and lipase of juvenile peanut worm (P<0.05), but had no significant effect on protease activity (P>0.05). The regression model analysis indicates that the most suitable dietary carbohydrate/lipid ratio which can make juvenile peanut worm acquire the best WGR is 2.42.

Key words： juvenile peanut worm, Sipunculus nudus Linnaeus; carbohydrate/lipid ratio; growth; body composition; digestive enzyme activities

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