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Effects of selenium source and level on growth performance, antioxidative ability and meat quality of broilers

文献类型： 外文期刊

作者： Wang Chuan-long 1 ; Xing Guan-zhong 1 ; Wang Li-sai 3 ; Li Su-fen 3 ; Zhang Li-yang 1 ; Lu Lin 1 ; Luo Xu-gang 2 ; Liao X 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Anim Sci, Mineral Nutr Res Div, Beijing 100193, Peoples R China

2.Yangzhou Univ, Coll Anim Sci & Technol, Poultry Mineral Nutr Lab, Yangzhou 225000, Jiangsu, Peoples R China

3.Hebei Normal Univ Sci & Technol, Dept Anim Sci, Qinhuangdao 066004, Hebei, Peoples R China

关键词： selenium source; growth performance; meat quality; antioxidative ability; broiler

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：2.848； 五年影响因子：2.979 ）

ISSN： 2095-3119

年卷期： 2021 年 20 卷 1 期

页码：

收录情况： SCI

摘要： This experiment was conducted to investigate the effects of selenium (Se) source and level on growth performance, carcass traits, antioxidative ability and meat quality of broilers. A total of 320 one-d-old Arbor Acres commercial broilers were randomly assigned to 1 of 5 treatments with 8 replicates in a completely randomized design involving a 2x2 factorial arrangement of treatments plus one Se-unsupplemented basal diet control for 42 d. The two Se sources were sodium selenite and Se yeast, and the two supplemental Se levels were 0.20 and 0.40 mg Se kg(-1). The results showed that broilers fed the Se-supplemented diets had higher (P<0.05) average daily gain and average daily feed intake from 22 to 42 d of age, eviscerated yield and abdominal fat percentages, Se concentrations and glutathione peroxidase (GSH-Px) activities in breast and thigh muscles on d 42, and lower (P<0.05) feed/gain from 1 to 21 and 22 to 42 d of age, mortality from 22 to 42 d of age and malondialdehyde (MDA) concentration in thigh muscle on d 42 than those fed the control diet. Broilers fed the diets supplemented with Se yeast had higher (P<0.05) pH value and lower (P<0.05) shear force in thigh muscle than those fed the diets supplemented with sodium selenite. Additionally, broilers fed the diets supplemented with 0.40 mg Se kg(-1) had lower (P<0.05) shear force in thigh muscle and higher (P<0.05) GSH-Px activities in breast and thigh muscles than those fed the diets supplemented with 0.20 mg Se kg(-1). Furthermore, broilers fed the diet supplemented with Se yeast at 0.40 mg Se kg(-1) had higher (P<0.05) Se concentrations in breast and thigh muscles than those fed the diet supplemented with Se yeast at 0.20 mg Se kg-1, but no differences (P<0.05) were observed in these indices of broilers fed the diets supplemented with sodium selenite between 0.20 and 0.40 mg Se kg(-1). The results from the present study indicated that supplemental Se could increase the growth performance, muscle Se concentration and antioxidative ability of broilers; and the Se from Se yeast was more effective than the Se from sodium selenite in improving meat quality of broilers.

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