杜仲叶提取物对湖羊生长性能、血清生化及抗氧化指标的影响

Effects of Eucommia ulmoides leaves extract on growth performance,serum biochemical and antioxidant indexes of hu sheep

文章旨在分析杜仲叶提取物对湖羊生长性能、血清生化及抗氧化指标的影响。试验将80只体重27.53 kg左右,健康状况良好的育肥湖羊随机分为4组,每组4个重复,每个重复5只。对照组湖羊参考《肉羊营养需要量(NY/T816-2021)》标准饲喂基础日粮,其余3组湖羊分别饲喂基础日粮+500、1000、1500 g/t杜仲叶提取物的试验日粮。预饲期7 d,正试期60 d。结果表明,(1)与对照组相比,基础日粮+1000 g/t杜仲叶提取物,湖羊末重显著提高8.56%(P<0.05);与对照组相比,基础日粮+1000、1500 g/t杜仲叶提取物,湖羊平均日增重显著提高29.25%、25.00%(P<0.05),湖羊平均日采食量显著提高22.33%、20.94%(P<0.05)。(2)与对照组相比,基础日粮+500、1000、1500 g/t杜仲叶提取物均显著提高湖羊血清中总蛋白、白蛋白含量(P<0.05),基础日粮+1000、1500 g/t杜仲叶提取物均显著降低湖羊血清中低密度脂蛋白含量(P<0.05)。(3)与对照组相比,基础日粮+500、1000、1500 g/t杜仲叶提取物均显著提高湖羊血清总抗氧化能力(T-AOC)及谷胱甘肽过氧化物酶(GSH-Px)活性(P<0.05),且显著降低了血清丙二醛(MDA)含量(P<0.05),基础日粮+1000、1500 g/t杜仲叶提取物均显著提高了湖羊血清过氧化氢酶(CAT)、超氧化物歧化酶(SOD)活性(P<0.05)。结论:杜仲叶提取物能提高湖羊生长性能,改善血清生化及抗氧化指标,且基础日粮中杜仲叶提取物的适宜添加量为1000 g/t。

To analyze the effects of Eucommia ulmoides leaves extract on growth performance,serum biochemical and antioxidant indicators of Hu sheep.Select 80 fattening Hu sheep weighing around 27.53kg and in good health,and randomly divide them into 4 groups,with 4 replicates in each group,with 5 sheep in each replicate.The control group of Hu sheep was fed a basic diet in accordance with the“Nutrient Requirements for Meat Sheep(NY/T816-2021)”standard,while the other three groups of Hu sheep were fed an experimental diet with a basic diet of+500,1000,and 1500 g/t of Eucommia ulmoides leaves extract.The pre trial period is 7 days,and the trial period is 60 days.The results showed that,(1)Compared with the control group,the basal diet+1000 g/t of Eucommia ulmoides leaves extract significantly increased the final weight of Hu sheep by 8.56%(P<0.05);Compared with the control group,the basal diet with 1000 and 1500 g/t Eucommia ulmoides leaves extract significantly increased the average daily gain of Hu sheep by 29.25%and 25.00%(P<0.05),and the average daily feed intake of Hu sheep was significantly increased by 22.33%and 20.94%(P<0.05).(2)Compared with the control group,the basal diet+500,1000,and 1500 g/t of Eucommia ulmoides leaves extract significantly increased the total protein and albumin content in the serum of Hu sheep(P<0.05),while the basal diet+1000,1500 g/t of Eucommia ulmoides leaves extract significantly reduced the low density lipoprotein content in the serum of Hu sheep(P<0.05).(3)Compared with the control group,the basal diet of+500,1000,and 1500 g/t Eucommia ulmoides leaves extract significantly increased the T-AOC and GSH-Px activities in the serum of Hu sheep(P<0.05),and significantly reduced the MDA content in the serum(P<0.05).The basal diet of+1000,1500 g/t Eucommia ulmoides leaves extract significantly increased the CAT and SOD activities in the serum of Hu sheep(P<0.05).Conclusion:Eucommia ulmoides leaves extract can improve the growth performance of Hu sheep,improve serum biochemical and antioxidant indicators,and the appropriate dosage of Eucommia ulmoides leaves extract in the basic diet is 1000 g/t.