桑叶黄酮对肉羊生长性能、肉品质、屠宰性能和血清抗氧化指标的影响  

Effect of mulberry leaf flavonoids on growth performance,meat quality,slaughter traits,and serum antioxidant indexes of mutton sheep

作　　者：苏晓月[1] 吕转平[1] 王艳萍[1] 刘英玉[2] SU Xiaoyue;LÜZhuanping;WANG Yanping;LIU Yingyu

机构地区：[1]新疆巴音郭楞职业技术学院,新疆库尔勒841000 [2]新疆农业大学动物医学学院,新疆乌鲁木齐830052

出　　处：《饲料研究》2025年第2期22-26,共5页Feed Research

基　　金：巴音郭楞职业技术学院2022年院级质量工程项目。

摘　　要：试验旨在探究桑叶黄酮对肉羊生长性能、肉品质、屠宰性能和血清抗氧化指标的影响。选取体重(39.15±1.27) kg健康状况良好的杜寒杂交育肥羊96只,平均分为4组,每组6个重复,每个重复4只肉羊。对照组饲喂基础饲粮,试验组分别在基础饲粮中添加200、400和600 mg/kg桑叶黄酮。预试期3 d,正式试验期30 d。结果显示,与对照组相比,饲粮中添加400 mg/kg和600 mg/kg桑叶黄酮可以显著提高肉羊末重和平均日增重(P<0.05),显著降低料重比(P<0.05)。饲粮中添加400 mg/kg和600 mg/kg桑叶黄酮可以显著提高肉羊肌肉pH24h值和系水力(P<0.05),显著降低滴水损失(P<0.05);显著提高肉羊屠宰前活重、胴体重、净肉重和眼肌面积(P<0.05)。饲粮中添加200、400和600 mg/kg桑叶黄酮均可以显著提高肉羊血清中谷胱甘肽过氧化物酶(GSH-Px)、超氧化物歧化酶(SOD)的活性和总抗氧化能力(T-AOC)(P<0.05),显著降低丙二醛(MDA)的含量(P<0.05);饲粮中添加400 mg/kg和600 mg/kg桑叶黄酮可以显著提高肉羊血清中过氧化氢酶(CAT)的活性(P<0.05)。研究表明,饲粮中添加桑叶黄酮可以提高肉羊生长性能、肉品质、屠宰性能及血清抗氧化能力,综合考虑养殖的经济效益,桑叶黄酮在肉羊养殖中的推荐添加量为400 mg/kg。The experiment aimed to investigate the effects of mulberry leaf flavonoids on the growth performance,meat quality,slaughter traits,and antioxidant indexes of mutton sheep.A total of 96 healthy Du-Han hybrid fattening sheep with body weight(39.15±1.27)kg were evenly divided into four groups,with six replicates per group and four mutton sheep per replicate.The control group was fed a basal diet,while the experimental groups were supplemented with 200,400,and 600 mg/kg mulberry leaf flavonoids in the basal diet.The pre-test lasted for three days and the formal test lasted for 30 days.The results showed that compared with the control group,the addition of 400 and 600 mg/kg mulberry leaf flavonoids significantly increased the final weight and average daily weight gain of mutton sheep(P<0.05),and significantly reduced the feed to weight ratio(P<0.05).The addition of 400 and 600 mg/kg mulberry leaf flavonoids significantly improved the pH24h value and water-holding capacity(P<0.05),and significantly reduced drip loss(P<0.05),the live weight,carcass weight,net meat weight and eye muscle area were significantly increased(P<0.05).The addition of 200,400,and 600 mg/kg mulberry leaf flavonoids significantly increased the activities of glutathione peroxidase(GSH-Px)and superoxide dismutase(SOD),and the total antioxidant capacity(T-AOC)(P<0.05),and significantly reduced the content of malondialdehyde(MDA)(P<0.05).The addition of 400 and 600 mg/kg mulberry leaf flavonoids significantly increased the activity of catalase(CAT)(P<0.05).The study indicates that the addition of mulberry leaf flavonoids in the diet can improve the growth performance,meat quality,slaughter traits,and antioxidant index of mutton sheep.Considering the economic benefits of breeding,the recommended addition level of mulberry leaf flavonoids in mutton sheep breeding is 400 mg/kg.

关 键 词：桑叶黄酮 肉羊 生长性能 屠宰性能 抗氧化指标 

分 类 号：S826[农业科学—畜牧学]