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

作　　者：WANG Chuan-long XING Guan-zhong WANG Li-sai LI Su-fen ZHANG Li-yang LU Lin LUO Xu-gang LIAO Xiu-dong 

机构地区：[1]Mineral Nutrition Research Division,Institute of Animal Sciences,Chinese Academy of Agricultural Sciences,Beijing 100193,P.R.China [2]Poultry Mineral Nutrition Laboratory,College of Animal Science and Technology,Yangzhou University,Yangzhou 225000,P.R.China [3]Department of Animal Science,Hebei Normal University of Science and Technology,Qinhuangdao 066004,P.R.China

出　　处：《Journal of Integrative Agriculture》2021年第1期227-235,共9页农业科学学报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (31601956);the Agricultural Science and Technology Innovation Program,China (ASTIP-IAS09);the earmarked fund for the China Agriculture Research System (CARS-41);the earmarked fund for Hebei Chicken Innovation Team of Modern Agro-industry Technology Research System,China (HBCT2018150203 and HBCT2018150206)。

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 2×2 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) p H 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 th

关 键 词：selenium source growth performance meat quality antioxidative ability BROILER 

分 类 号：S831.5[农业科学—畜牧学]