动物营养学报 >

2018 , Vol. 30 >Issue 10: 4012 - 4019

DOI: https://doi.org/10.3969/j.issn.1006-267x.2018.10.026

特种经济动物营养 Special economic animal nutrition

饲粮添加维生素E和硒对育成期水貂生长性能、营养物质消化率及血清生化指标的影响

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  • 中国农业科学院特产研究所, 吉林省特种经济动物分子生物学省部共建实验室, 长春 130112
张婷(1988-),女,吉林长春人,硕士,研究方向为野生动植物保护与利用。E-mail:zhangting542118@163.com

收稿日期: 2018-03-13

  网络出版日期: 2018-10-20

基金资助

中国农业科学院科技创新工程（CAAS-ASTIP-2018-ISAPS）

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Effects of Dietary Vitamin E and Selenium on Growth Performance, Nutrient Digestibility and Serum Biochemical Indices of Growing Minks (Mustela vison)

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  • State Key Laboratory of Special Economic Animal Molecular Biology, Institute of Special Animal and Plant Science, Chinese Academy of Agricultural Science, Changchun 130112, China

Received date: 2018-03-13

  Online published: 2018-10-20

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摘要

本试验旨在研究饲粮添加维生素E（VE）和硒（Se）对育成期水貂生长性能、营养物质消化率及血清生化指标的影响。选取60只70日龄、平均体重为（1 030.64±85.50）g的健康雄性短毛黑水貂，随机分成4组，每组15个重复，每个重复1只，分别饲喂基础饲粮（对照组）、基础饲粮＋200 mg/kg VE（以DL-α-生育酚乙酸酯为VE源，含量为50%）（VE组）、基础饲粮＋0.2 mg/kg Se（以甘氨酸纳米硒为Se源，含量为1%）（Se组），基础饲粮＋200 mg/kg VE＋0.2 mg/kg Se（VE+Se组）。试验从2017年7月14日开始，至2017年9月14日结束。结果显示：1）与对照组相比，VE组和VE+Se组水貂平均日增重显著增加而料重比显著下降（P<0.05）。2）VE+Se组水貂脂肪消化率极显著高于对照组（P<0.01），但与VE组和Se组差异不显著（P>0.05）。3）VE+Se组水貂血清超氧化物歧化酶（SOD）和谷胱甘肽过氧化物酶（GSH-Px）活性显著或极显著高于对照组（P<0.05或P<0.01），但与VE组和Se组差异不显著（P>0.05）；与对照组相比，饲粮单独添加VE或同时添加VE和Se极显著降低水貂血清活性氧（ROS）水平（P<0.01）。4）VE+Se组水貂血清免疫球蛋白G（IgG）水平显著高于VE组和Se组（P<0.05），但与对照组差异不显著（P>0.05）。与对照组相比，饲粮同时添加VE和Se显著提高水貂血清白介素-2（IL-2）水平（P<0.05）。综合考虑得出，本试验条件下，饲粮中同时添加200 mg/kg VE和0.2 mg/kg Se可促进育成期水貂生长，提高脂肪消化率，同时增强机体抗氧化能力及免疫力。

关键词： 水貂; 维生素E; 硒; 生长性能; 营养物质消化率; 血清生化指标

本文引用格式

张婷, 杨雅涵, 李仁德, 王静, 刘可园, 刘学庆, 郭肖兰, 李光玉 . 饲粮添加维生素E和硒对育成期水貂生长性能、营养物质消化率及血清生化指标的影响[J]. 动物营养学报, 2018 , 30(10) : 4012 -4019 . DOI: 10.3969/j.issn.1006-267x.2018.10.026

Abstract

This experiment was conducted to study the effects of dietary vitamin E (VE) and selenium (Se) on the growth performance, nutrient digestibility and serum biochemical indices of growing minks. Sixty 70-day-old male standard dark minks with an average body weight of (1 030.64±85.50) g were randomly divided into 4 groups with 15 replicates per group and 1 mink per replicate. They were fed diets as follows:a basal diet (control group), the basal diet+200 mg/kg VE (50% DL-α-tocopheryl acetate as VE source, 50%) (VE group), the basal diet+0.2 mg/kg Se (glycine nano-selenium as Se source, 1%) (Se group), and the basal diet+200 mg/kg VE+0.2 mg/kg Se (VE+Se group). The experiment began on 14th July, 2017, and ended on 14th September, 2017. The results showed as follows:1) the average daily gain (ADG) was significantly increased and the feed/gain (F/G) was significantly decreased in VE and VE+Se groups compared with the control group (P<0.05). 2) The fat digestibility in VE+Se group was extremely significantly increased compared with the control group (P<0.01), but no significant difference was found between VE and Se groups (P>0.05). 3) The activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in serum in VE+Se group were significantly or extremely significantly higher than those in the control group (P<0.05 or P<0.01), but had no significant difference compared with VE and Se groups (P>0.05). Compared with the control group, only adding VE or both adding VE and Se in diets extremely significantly decreased serum reactive oxygen level (P<0.01). 4) The serum immunoglobulin G level in VE+Se group was significantly higher than that in VE and Se groups (P<0.05), but had no significant difference compared with the control group (P>0.05). Compared with the control group, both adding VE and Se in diets significantly increased serum interleukin-2 level (P<0.05). Considering all the factors, both adding 200 mg/kg VE and 0.2 mg/kg Se in diets can improve the growth, increase the fat digestibility, and enhance the antioxidant capacity and immunity of growing minks under this experimental condition.

Key words： minks; vitamin E; selenium; growth performance; nutrient digestibility; serum biochemical indices

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