大豆异黄酮和抗生素对文昌鸡生长性能、肉品质和血浆抗氧化指标的影响  

Effects of soybean isoflavone and antibiotics on growth performance, meat quality and plasma antioxidant indexes of Wenchang chickens

作　　者：林厦菁 蒋守群 林哲敏[2] 刘圈炜[2] 黄丹红 LIN Xiajing;JIANG Shouqun;LIN Zemin;LIU Quanwei;HUANG Danhong(Institute of Animal Science, Guangdong Academy of Agricultural Sciences/State Key Laboratory of Livestock and Poultry Breeding/Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture/Guangdong Public Laboratory of Animal Breeding and Nutrition/Guangdong Key La;Institute of Animal Husbandry and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou 570100, China)

机构地区：[1]广东省农业科学院动物科学研究所/畜禽育种国家重点实验室/农业部动物营养与饲料(华南)重点开放实验室/广东省动物育种与营养公共实验室/广东省畜禽育种与营养研究重点实验室,广东广州510640 [2]海南省农业科学院畜牧兽医研究所,海南海口570100

出　　处：《华南农业大学学报》2018年第1期1-6,共6页Journal of South China Agricultural University

基　　金：国家肉鸡产业技术体系项目(CARS-42);国家"十二五"科技支撑计划项目子课题(2014BAD13B02);广东省科技攻关项目(2013B020306002)

摘　　要：【目的】对比大豆异黄酮和抗生素对文昌鸡生长性能、肉品质及血浆抗氧化指标的影响,为大豆异黄酮在文昌鸡生产中的实际应用提供参考。【方法】选用1日龄文昌鸡母雏540只。试验分3组,包括空白对照组、抗生素组和大豆异黄酮组,每组4个重复,每个重复45羽。分小鸡、中鸡和大鸡3个阶段进行试验。【结果】生长性能结果显示,1~30日龄小鸡各组之间的平均日增质量、平均日采食量和料重比均无显著差异(P>0.05);31~80日龄阶段,大豆异黄酮组的平均日增质量显著高于对照组(P<0.05);81~120日龄阶段,大豆异黄酮组的平均日采食量显著高于对照组(P<0.05)。肉品质结果显示,各组的肉色L*、a*、b*和pH差异均不显著(P>0.05);与对照组相比,大豆异黄酮组的熟肉率显著提高(P<0.05)。血浆抗氧化指标结果显示,31~80日龄阶段,大豆异黄酮组的总抗氧化能力(Total antioxidant capacity,T-AOC)活性显著高于抗生素组(P<0.05);81~120日龄阶段,大豆异黄酮组的肌酸激酶(Creatine kinase,CK)活性显著低于抗生素组,谷胱甘肽(Glutathione,GSH)含量显著高于抗生素组,抗生素组和大豆异黄酮组的T-AOC活性显著高于对照组(P<0.05)。【结论】中鸡阶段饲粮中添加20 mg·kg^(–1)大豆异黄酮可以提高鸡日增质量和抗氧化水平;大鸡阶段饲粮中添加15 mg·kg^(–1)大豆异黄酮能够提高鸡采食量、熟肉率和抗氧化水平。【Objective】To study the effects of soy isoflavone on growth performance,meat quality and plasma antioxidant indexes of Wenchang chickens,and provide references for application of soy isoflavone in Wenchang chicken production.【Method】A total of540one-day-old Wenchang chickens were randomly divided into three treatments with four replicates per treatment and45chickens per replicate.The three treatment groups included the control group,antibiotics group and soy isoflavone group.The trial was performed in three stages including young,medium and old chicken stages.【Result】Growth performance results showed that the average daily gain(ADG),average daily food intake(ADFI)and feed gain ratio(F/G)were not significantly different among three groups from1to30days(P>0.05).ADG was significantly higher in soy isoflavone group than that in control group from31to80days(P<0.05).From81to120days,ADFI was significantly higher in soy isoflavone group than that in control group(P<0.05).Meat quailty results showed that meat color represented with L*,a*and b*values and meat pH were not significantly different among three groups(P>0.05).Soy isoflavone group had a significantly higher cooked meat percentage than that of the control group(P<0.05).Analysis of the plasma antioxidant indexes showed that soy isoflavone group had significantly higher total antioxidant capacity(T-AOC)compared with antibiotics group from31to80days(P<0.05).From81to120days,creatine kinase(CK)activity was significantly lower in soy isoflavone group than that in antibiotics group,glutathione(GSH)content was significantly higher in soy isoflavone group than that in antibiotics group,and T-AOC was significantly higher in antibiotics and soy isoflavone groups than that in control group(P<0.05).【Conclusion】Dietary supplementation with20mg·kg–1soy isoflavone can increase ADG and antioxidantion of chickens from31to80days,dietary supplementation with15mg·kg–1soy isoflavone can increase ADFI,cooked meat percentage and antioxidant level of chickens from81

关 键 词：文昌鸡 大豆异黄酮 抗生素 生长性能 肉品质 抗氧化作用 

分 类 号：S831.5[农业科学—畜牧学]