动物营养学报 >

2014 , Vol. 26 >Issue 7: 1880 - 1887

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.07.021

水产营养 Aquaculture Nutrition

褐藻糖胶对黄颡鱼幼鱼生长性能和消化酶活性的影响

  • 杨晴 ,
  • 杨锐 ,
  • 周歧存 ,
  • 陈健 ,
  • 梁雄培
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  • 1. 宁波大学海洋学院, 应用海洋生物技术教育部重点实验室, 宁波 315211;
    2. 宁波大学海洋学院, 鱼类营养研究室, 宁波 315211

收稿日期: 2014-02-25

  网络出版日期: 2014-07-01

基金资助

国家星火计划课题（2013GA701001）；国家自然科学基金（31272670）

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Effects of Fucoidan on Growth Performance and Digestive Enzyme Activities of Juvenile Yellow Catfish (Pelteoobagrus fulvidraco)

  • YANG Qing ,
  • YANG Rui ,
  • ZHOU Qicun ,
  • CHEN Jian ,
  • LIANG Xiongpei
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  • 1. Key Laboratory of Applied Marine Biotechnology, School of Marine Sciences, Ningbo University, Ningbo 315211, China;
    2. Laboratory of Fish Nutrition, School of Marine Sciences, Ningbo University, Ningbo 315211, China

Received date: 2014-02-25

  Online published: 2014-07-01

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摘要

本试验旨在研究褐藻糖胶对黄颡鱼幼鱼生长性能和消化酶活性的影响。选取大小、体重均一的黄颡鱼幼鱼420尾，随机分为7组，每组3个重复，每个重复20尾。对照组饲喂不添加褐藻糖胶的基础饲料，试验组分别饲喂添加从铜藻中自提的褐藻糖胶和从市场上购买的商品褐藻糖胶的基础饲料，饲料中褐藻糖胶的有效浓度分别为0.05%、0.10%、0.20%。试验期为12周。结果表明：饲料中添加有效浓度为0.10%的自提褐藻糖胶可显著提高黄颡鱼幼鱼的终末体重、增重率和特定生长率（P0.05），对胃中淀粉酶和胃蛋白酶及肠道中淀粉酶活性亦无显著影响（P>0.05）。饲料中添加2种褐藻糖胶后黄颡鱼幼鱼胃和肠道中脂肪酶活性均有不同程度的升高，其中添加有效浓度为0.10%的自提褐藻糖胶和有效浓度为0.05%~0.20%的商品褐藻糖胶时胃中脂肪酶活性显著升高（P<0.05），添加有效浓度为0.05%~0.20%的自提褐藻糖胶和有效浓度为0.20%的商品褐藻糖胶时肠道中脂肪酶活性显著升高（P<0.05）。由此得出，饲料中添加有效浓度为0.10%的自提褐藻糖胶能显著促进黄颡鱼幼鱼的生长；在一定有效浓度范围内，无论是商品褐藻糖胶还是自提褐藻糖胶，都能提高黄颡鱼幼鱼胃和肠道中脂肪酶活性。

关键词： 黄颡鱼幼鱼; 褐藻糖胶; 生长性能; 脂肪酶

本文引用格式

杨晴 , 杨锐 , 周歧存 , 陈健 , 梁雄培 . 褐藻糖胶对黄颡鱼幼鱼生长性能和消化酶活性的影响[J]. 动物营养学报, 2014 , 26(7) : 1880 -1887 . DOI: 10.3969/j.issn.1006-267x.2014.07.021

Abstract

This experiment was conducted to investigate the effects of fucoidan on growth performance and digestive enzyme activities of juvenile yellow catfish (Pelteoobagrus fulvidraco). A total of 420 individuals of juvenile yellow catfish with similar size and body weight were randomly allocated to 7 groups with 3 replicates per group and 20 fish per replicate. The fish in control group were fed a basal diet without fucoidan, and those in experimental groups were fed the basal diet supplemented with fucoidan extracted from Sargassum horneri and commercial fucoidan purchased from the market, and the effective concentrations added in diets were 0.05%, 0.10% and 0.20%, respectively. The experiment was carried on for 12 weeks. The results showed as follows: adding the extractive fucoidan at the effective concentration of 0.10% could significantly increase the final body weight (FBW), weight gain ratio (WGR) and specific growth rate (SGR) of yellow catfish (P0.05). Adding 2 kinds of fucoidan had no significant effects on the feed conversion ratio (FCR) and protein efficiency rate (PER) (P>0.05), and had no significant effects on the activities of amylase and pepsin in stomach and amylase in intestine (P>0.05). The activity of lipase in stomach and intestine increased more or less when the fish were fed diets with the two kinds of fucoidan. There was a significant improvement in gastric lipase activity when the fish were fed diets with extractive fucoidan at the effective concentration of 0.10% and commercial fucoidan at the effective concentrations of 0.05% to 0.20% (P<0.05). And, adding extractive fucoidan at the effective concentrations of 0.05% to 0.20% and commercial fucoidan at the effective concentration of 0.20% could significantly increase the intestinal lipase activity. The results indicate that adding the extractive fucoidan at the effective concentration of 0.10% can significantly promote the growth of juvenile yellow catfish; both the extractive fucoidan and commercial fucoidan can improve the gastrointestinal lipase activity at a certain effective concentration.

Key words： juvenile yellow catfish (Pelteoobagrus fulvidraco); fucoidan; growth performance; lipase

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