动物营养学报Issue(1)：191-197,7.DOI:10.3969/j.issn.1006-267x.2016.01.025
大豆素对湘中黑牛育肥牛胴体性能和肉品质的影响
Effects of Daidzein on Carcass Performance and Meat Quality of Fattening Xiangzhong Black Cattle
摘要
Abstract
This study was to investigate the effects of dietary supplementation of daidzein on carcass perform-ance and meat quality of Fattening Xiangzhong Black cattle.Fourteen healthy castrated Hunan black cattle aged about 2 years with similar body weight [(450±20) kg] were randomly divided into two groups (n=7).Con-trol group was fed a basal diet while test group was fed the basal diet added 500 mg/kg daidzein.The experi-ment lasted for 120 days.The results showed as follows:compared with control group, 1) the supplementation of daidzein had no significant effects on live weight before slaughter, hot carcass weight and dressing percent-age, and carcass fat content and backfat thickness tended to decrease with an insignificant difference ( P>0.05);2) daidzein supplementation significantly increased ether extract content and marbling score of longissi-mus dorsi by 8.34%and 1.93 ( P<0.05) , respectively, pH after aging for 24 h and moisture content in muscle were significantly reduced ( P<0.05) , and redness value of muscle was significantly increased ( P<0.05);3) daidzein supplementation significantly reduced serum concentrations of glucose, urea nitrogen, triglyceride, to-tal cholesterol, non-esterified fatty acid, high density lipoprotein cholesterol ( HDL-C) and low density lipo-protein cholesterol( LDL-C) ( P<0.05); 4) daidzein supplementation significantly increased and reduced the activities of isocitrate dehydrogenase and glucose 6 phosphate dehydrogenase ( P<0.05) , respectively.The re-sults indicate that dietary supplementation of daidzein can affect fat metabolism, promote intramuscular fat dep-osition, and improve beef marbling and meat quality of fattening cattle.关键词
大豆素/湘中黑牛/肉品质/肌肉脂肪/胴体性能Key words
daidzein/Xiangzhong black cattle/meat quality/intramuscular fat/carcass performance分类
农业科技引用本文复制引用
许兰娇,包淋斌,赵向辉,王灿宇,瞿明仁,欧阳克蕙,熊小文,祝远魁..大豆素对湘中黑牛育肥牛胴体性能和肉品质的影响[J].动物营养学报,2016,(1):191-197,7.基金项目
国家公益性行业（农业）科研专项（201303143）；国家现代肉牛牦牛产业技术体系项目（CARS-38）；江西省赣鄱555工程领军人才计划（赣才字［2012］1号）；江西省自然科学基金计划 （）
