水果提取物对羔羊生长性能、抗氧化及肉品质的影响

本研究旨在研究日粮添加水果提取物对羔羊生长和屠宰性能、组织器官抗氧化及肉品质的影响.试验将60只体重接近的羔羊随机分为2组,每组6个重复,每个重复5只.在为期4周的饲养期间,对照组饲喂基础日粮,处理组饲喂基础日粮+150?mg/kg水果提取物.结果:粮添加150?mg/kg水果提取物对羔羊屠宰率、热胴体重、冷胴体重、内...

Effects of fruit extracts on growth performance,anti-oxidation and meat quality of lambs

The purpose of this study was to investigate the effects of fruit extracts on growth and slaughter performance,tissue and organ antioxidant and meat quality of lambs.Sixty lambs with similar body weight were randomly divided into 2 groups with 6 replicates per group and 5 lambs per replicate.During the 4-week feeding process,the control group was fed a basal diet,and the treatment group was fed a basal diet+150 mg/kg fruit extract.Results:Dietary 150 mg/kg fruit extract had no significant effects on dressing percentage,hot carcass weight,cold carcass weight,relative weight of internal organs,leg length and chest width of lambs(P>0.05).Compared with the control group,the final weight and carcass length of lambs in fruit extract group were significantly increased by 3.54%and 3.61%(P<0.05),respectively.The muscle hydraulics,juiciness and meat color L and B values in fruit extract group were significantly higher than those in control group(P<0.05),but the drip loss and meat color A values in fruit extract group were significantly lower than those in control group(P<0.05).The contents of thiobarbituric acid reactants in muscle and serum of lambs in fruit extract group were significantly decreased by 41.27%and 17.86%compared with control group(P<0.05),respectively.However,the activities of superoxide dismutase,glutathione peroxidase and catalase in muscle and serum were significantly increased by 104.40%,46.71%,156.68%,40.38%and 43.83%(P<0.05),respectively.Conclusion:Under the conditions of this study,dietary 150 mg/kg fruit extract can increase the weight of lambs,improve meat quality,decrease the content of lipid peroxides in muscle and serum,and increase the activity of antioxidant enzymes.