动物营养学报 >

2015 , Vol. 27 >Issue 12: 3968 - 3974

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.12.039

研究简报 Short Communications

罗非鱼低鱼粉饲料中桑叶发酵蛋白替代鱼粉的研究

  • 陈文燕 ,
  • 陈拥军 ,
  • 彭祥和 ,
  • 林仕梅 ,
  • 黄先智 ,
  • 李云
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  • 1. 西南大学动物科技学院, 重庆 400716;
    2. 西南大学淡水鱼类资源与生殖发育教育部重点实验室, 重庆 400716;
    3. 西南大学蚕学与系统生物学研究所, 重庆 400716

收稿日期: 2015-06-12

  网络出版日期: 2015-12-14

基金资助

公益性行业(农业)科研专项(201303053);重庆市特色效益水产业关键技术集成示范项目(40808513)

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Replacement of Fish Meal with Fermented Mulberry Leaves Protein in Low Fish Meal Diets for Tilapia(Oreochromis niloticus)

  • CHEN Wenyan ,
  • CHEN Yongjun ,
  • PENG Xianghe ,
  • LIN Shimei ,
  • HUANG Xianzhi ,
  • LI Yun
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  • 1. College of Animal Science and Technology, Southwest University, Chongqing 400716, China;
    2. Key Laboratory of Freshwater Fish Reproduction and Development of Ministry of Education, Southwest University, Chongqing 400716, China;
    3. Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China

Received date: 2015-06-12

  Online published: 2015-12-14

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摘要

在实用饲料(含5%鱼粉)的基础上,用桑叶发酵蛋白分别替代0(对照)、40%和80%的鱼粉,相应的桑叶发酵蛋白添加水平为0、4%和8%,配制成3种等氮(粗蛋白质含量32%)等能(总能15 MJ/kg)的试验饲料,饲喂初重约为40 g的吉富罗非鱼8周,以研究罗非鱼低鱼粉饲料中桑叶发酵蛋白替代鱼粉的可行性。每种饲料设3个重复,每个重复饲喂30尾鱼。结果显示:与对照组相比,40%替代水平不影响罗非鱼的生长(P>0.05),而80%替代水平显著降低罗非鱼的末重、特定生长率和蛋白质效率(P<0.05)。各组饲料系数和摄食率均无显著差异(P>0.05)。80%替代水平组罗非鱼的脏体比、肝体比以及血清中总胆固醇、甘油三酯、低密度脂蛋白胆固醇和全血中葡萄糖(血糖)含量最低,血清高密度脂蛋白胆固醇含量及高密度脂蛋白胆固醇/总胆固醇、高密度脂蛋白胆固醇/低密度脂蛋白胆固醇最高,且与40%替代水平组和对照组均有显著差异(P<0.05)。各组罗非鱼肥满度以及全鱼水分、粗蛋白质、粗脂肪和粗灰分含量均无显著差异(P>0.05)。由此可见,在低鱼粉饲料(含5%鱼粉)中,桑叶发酵蛋白替代40%的鱼粉不会影响罗非鱼的生长,替代80%鱼粉会抑制罗非鱼的生长,但可以降低罗非鱼的血脂和血糖含量。

关键词： 桑叶发酵蛋白; 鱼粉; 罗非鱼; 生长

本文引用格式

陈文燕 , 陈拥军 , 彭祥和 , 林仕梅 , 黄先智 , 李云 . 罗非鱼低鱼粉饲料中桑叶发酵蛋白替代鱼粉的研究[J]. 动物营养学报, 2015 , 27(12) : 3968 -3974 . DOI: 10.3969/j.issn.1006-267x.2015.12.039

Abstract

In order to study the feasibility of replacement of fish meal with fermented mulberry leaves protein in low fish meal diets for tilapia(Oreochromis niloticus), three isonitrogenous(crude protein content was 32%) and isoenergetic(gross energy was 15 MJ/kg) experimental diets were formulated by replacing 0(control), 40% and 80% fish meal with fermented mulberry leaves protein on basis of a practical diet(fish meal content was 5%), and the corresponding supplemental levels of fermented mulberry leaves protein were 0, 4% and 8%, respectively. Each diet was randomly assigned to 3 replicates of 30 genetically improved farmed tilapia(average body weight about 40 g). The experiment lasted for 8 weeks. The results showed as follows:the final body weight, specific growth rate(SGR) and protein efficiency ratio(PER) in the 80% replacement level group were significantly lower than those in the control group(P<0.05), but there were no significant differences between the 40% replacement level group and the control group(P>0.05). No significant differences were found in feed conversion ratio(FCR) and feeding rate(FR). The fish in the 80% replacement level group had the lowest values of viscera somatic index(VSI), hepatopancreas somatic index(HSI) and serum total cholesterol(TC), triglyceride(TG), low density lipoprotein cholesterol(LDL-C) and blood glucose contents and the highest values of high density lipoprotein cholesterol(HDL-C) content, HDL-C/CHO and HDL-C/LDL-C, and the differences in those indices reached significance level between 80% replacement level group and 40% replacement level group or control group(P<0.05). There were no significant differences in condition factor(CF), and the contents of moisture, crude protein, ether extract and ash in whole body among all groups(P>0.05). In conclusion, the growth is not affected when 40% fish meal replacement with fermented mulberry leaves protein in the low fish meal diet(fish meal content is 5%), and 80% replacement level can inhibit growth, but effectively reduce blood glucose and lipid contents.

Key words： fermented mulberry leaves protein; fish meal; tilapia; growth

参考文献

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