酵母硒对肉仔鸡生长性能、屠宰性能及血清抗氧化指标的影响  

The effect of yeast selenium on the growth performance,slaughter performance,and serum antioxidant indicators of broiler chickens

作　　者：高庚渠[1] 夏广英 张虽栓[1] GAO Gengqu;XIA Guangying;ZHANG Suishuan(Henan Quality Engineering Vocational College,Pingdingshan,Henan Province 467000,China)

机构地区：[1]河南质量工程职业学院,河南平顶山467000

出　　处：《中国饲料》2024年第20期55-58,共4页China Feed

基　　金：河南省科技厅2023年度重点研发与推广专项(232400410459)。

摘　　要：文章旨在研究酵母硒对肉仔鸡生长性能、屠宰性能及血清抗氧化指标的影响。试验将1600羽1日龄的白羽肉鸡随机分为4组,每组8个重复,每个重复50羽。试验分1~21 d和22~42 d两阶段进行饲养,试验日粮分别添加0、0.1、0.2和0.4 mg/kg酵母硒。结果表明:1~21 d,与对照组相比,0.2 mg/kg的酵母硒组肉鸡末体重(FBW)显著提高5.59%,平均日增重(ADG)显著提高5.80%,料重比显著降低5.93%(P<0.05);22~42 d,与对照组相比,0.2 mg/kg酵母硒组肉鸡FBW显著提高4.25%,ADG显著提高3.62%(P<0.05);1~42 d,与对照组相比,0.2 mg/kg酵母硒组肉鸡ADG显著提高4.29%,料重比显著降低4.66%(P<0.05);此外,酵母硒对肉鸡全阶段ADFI均无显著影响(P>0.05)。0.2mg/kg酵母硒组肉鸡屠宰率显著提高(P<0.05);0.2mg/kg酵母硒组肉鸡胸肌率显著提高(P<0.05);0.2和0.4 mg/kg的酵母硒组肉鸡腿肌滴水损失显著降低(P<0.05);0.2 mg/kg酵母硒组肉鸡腿肌亮度显著降低(P<0.05)。21 d,0.2和0.4mg/kg酵母硒组肉鸡血清总超氧化物歧化酶(T-SOD)和总抗氧化能力(T-AOC)活性显著提高(P<0.05),丙二醛(MDA)含量显著降低(P<0.05),0.2 mg/kg酵母硒组肉鸡血清谷胱甘肽过氧化物酶(GSH-Px)活性显著提高(P<0.05);42 d,0.2和0.4mg/kg酵母硒组肉鸡血清谷胱甘肽过氧化物酶(GSH-Px)活性显著提高(P<0.05),0.2 mg/kg酵母硒组肉鸡血清丙二醛(MDA)含量显著降低(P<0.05)。综上所述,本试验发现,添加0.2 mg/kg的酵母硒可通过提升肉鸡血清抗氧化能力促进肉鸡生长发育。The aim of this experiment is to investigate the effects of yeast selenium on the growth performance,slaughter performance,and serum antioxidant indicators of broiler chickens.16001-day-old white feathered broiler chickens were randomly divided into 4 groups,with 1 group consisting of 8 replicates and 50 chickens per replicate.The experiment was conducted in two stages:1~21 days and 22~42 days,with 0,0.1,0.2,and 0.4 mg/kg yeast selenium added as the experimental diet.The results showed that after 1~2 days,compared with the control group,the SY group with 0.2 mg/kg significantly increased FBW by 5.59%,ADG by 5.80%,and feed to weight ratio by 5.93%(P<0.05);From 22 to 42 days,compared with the control group,the SY group with 0.2 mg/kg significantly increased FBW by 4.25%and ADG by 3.62%(P<0.05);After 1~42 days,compared with the control group,the SY group with 0.2 mg/kg significantly increased ADG by 4.29%and significantly reduced feed to weight ratio by 4.66%(P<0.05);In addition,SY had no significant effect on the ADFI of broiler chickens throughout the entire stage(P>0.05).The addition of 0.2 mg/kg SY significantly increased the slaughter rate of broiler chickens(P<0.05);The addition of 0.2 mg/kg SY significantly increased the breast muscle rate of broiler chickens(P<0.05);The addition of 0.2 and 0.4 mg/kg SY significantly increased the dripping loss of leg muscles in broiler chickens(P<0.05);The addition of 0.2 mg/kg SY significantly decreased the brightness of chicken leg muscles(P<0.05).After 21 days,the T-SOD and GSH Px activities in the serum of broiler chickens were significantly increased(P<0.05)with the addition of 0.2 and 0.4 mg/kg SY,while the T-AOC ability in the serum of broiler chickens with the addition of 0.2 and 0.4 mg/kg SY was significantly increased(P<0.05),and the MDA content was significantly reduced(P<0.05);After 42 days,the serum GSH Px activity of broiler chickens was significantly increased(P<0.05)with the addition of 0.2 and 0.4 mg/kg SY,while the serum MDA content of broiler chickens with

关 键 词：酵母硒 肉鸡 生长性能 屠宰性能 抗氧化 

分 类 号：S816.7[农业科学—饲料科学]