动物营养学报 >

2015 , Vol. 27 >Issue 1: 147 - 153

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.01.018

水产营养 Aquaculture Nutrition

亚麻籽油对罗非鱼生长性能及肉品质的影响

  • 彭祥和 ,
  • 李法见 ,
  • 林仕梅 ,
  • 朱旺明 ,
  • 关勇
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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. 广州信豚水产饲料科技有限公司, 广州 510642

收稿日期: 2014-07-11

  网络出版日期: 2015-01-10

基金资助

重庆市基础与前沿研究计划(cstc2013jcyjA80037);广州信豚水产饲料科技有限公司资助项目

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Effects of Linseed Oil on Growth Performance and Meat Quality of Tilapia (Oreochromis niloticus)

  • PENG Xianghe ,
  • LI Fajian ,
  • LIN Shimei ,
  • ZHU Wangming ,
  • GUAN Yong
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  • 1. College of Animal Science and Technology, Southwest University, Chongqing 400716, China;
    2. Key Laboratory of Freshwater Fish Resources and Reproductive Development of Ministry of Education, Chongqing 400716, China;
    3. Guangzhou Sintun Aqua-Tech Co., Ltd., Guangzhou 510642, China

Received date: 2014-07-11

  Online published: 2015-01-10

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摘要

本试验旨在研究亚麻籽油对罗非鱼的生长性能及肉品质的影响。在1种实用饲料配方的基础上,分别添加0(对照)、1.5%、3.0%、4.5%亚麻籽油,配制4种等氮(粗蛋白质含量为33.5%)的试验饲料。选取初始均重(9.15±0.03) g的吉富罗非鱼360尾,随机分成4组,每组3个重复,每个重复30尾鱼,饲喂8周。结果表明:3.0%、4.5%组罗非鱼的末重和特定生长率显著高于对照组和1.5%组(P<0.05),而3.0%、4.5%组饲料系数则显著低于对照组(P<0.05)。4.5%组的蛋白质效率显著高于其他各组(P<0.05)。4.5%组罗非鱼全鱼粗脂肪含量显著高于其他各组(P<0.05),3.0%、4.5%组罗非鱼全鱼粗蛋白质含量显著低于对照组(P<0.05)。3.0%、4.5%组罗非鱼肌肉C20: 5n-3(EPA)、n-3多不饱和脂肪酸(PUFA)含量和n-3/n-6 PUFA显著高于对照组(P<0.05),且其肌肉C22: 6n-3(DHA)含量显著高于对照组和1.5%组(P<0.05)。3.0%组罗非鱼肌肉C22: 5n-3(DPA)含量显著高于对照组和1.5%组(P<0.05)。4.5%组罗非鱼肌肉PUFA含量显著高于对照组(P<0.05),而与1.5%、3.0%组无显著差异(P>0.05)。由此可见,饲料中添加亚麻籽油可改善罗非鱼的生长性能和肉品质,且亚麻籽油的适宜添加水平为3.0%。

关键词： 罗非鱼; 亚麻籽油; 生长性能; 体组成; 肉品质

本文引用格式

彭祥和 , 李法见 , 林仕梅 , 朱旺明 , 关勇 . 亚麻籽油对罗非鱼生长性能及肉品质的影响[J]. 动物营养学报, 2015 , 27(1) : 147 -153 . DOI: 10.3969/j.issn.1006-267x.2015.01.018

Abstract

An 8-week feeding experiment was conducted to investigate the effects of linseed oil on growth performance and meat quality of tilapia (Oreochromis niloticus). Four isonitrogenous (crude protein content was 33.5%) experimental diets were formulated to contain 0 (control), 1.5%, 3.0% and 4.5% linseed oil based on a practical diet, respectively. A total of 360 GIFT strain tilapia with the initial average body weight of (9.15±0.03) g were randomly allocated into 4 groups with 3 replicates per group and 30 fish per replicate. The results showed as follows: the final body weight and specific growth rate in the 3.0% and 4.5% groups were significantly higher than those in the control group and 1.5% group (P<0.05), while the feed conversion ratio in the 3.0% and 4.5% groups was significantly lower than that in the control group (P<0.05). The protein efficiency rate in 4.5% group was significantly higher than that in the other groups (P<0.05). The content of whole-body crude lipid in the 4.5% group was significantly higher than that in the other groups (P<0.05), while the content of whole-body crude protein in the 3.0% and 4.5% groups was significantly lower than that in the control group (P<0.05). The contents of C20: 5n-3 (eicosapentaenoic acid, EPA) and n-3 polyunsaturated fatty acids (PUFA), and n-3/n-6 PUFA in muscle in the 3.0% and 4.5% groups were significantly higher than those in the control group (P<0.05), and the content of C22: 6n-3 (docosahexaenoic acid, DHA) in muscle in the 3.0% and 4.5% groups was significantly higher than that in the control group and 1.5% group (P<0.05). The content of C22: 5n-3 (docosapentaenoic acid, DPA) in muscle in the 3.0% group was significantly higher than that in the control group and 1.5% group (P<0.05). The content of PUFA in muscle in the 4.5% group was significantly higher than that in the control group (P<0.05), while no significant difference was found among 1.5%, 3.0% and 4.5% groups (P>0.05). The results indicate that linseed oil supplementation can improve the growth performance and meat quality of tilapia, and the suitable supplemental level is 3.0%.

Key words： tilapia; linseed oil; growth performance; body composition; meat quality

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