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

ZHANG Ting, YANG Yahan, LI Rende, WANG Jing, LIU Keyuan, LIU Xueqing, GUO Xiaolan, LI Guangyu

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

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

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

Molecular Nutrition

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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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

Cite this article

ZHANG Ting, YANG Yahan, LI Rende, WANG Jing, LIU Keyuan, LIU Xueqing, GUO Xiaolan, LI Guangyu . Effects of Dietary Vitamin E and Selenium on Growth Performance, Nutrient Digestibility and Serum Biochemical Indices of Growing Minks (Mustela vison)[J]. Chinese Journal of Animal Nutrition, 2018 , 30(10) : 4012 -4019 . DOI: 10.3969/j.issn.1006-267x.2018.10.026

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