沙棘黄酮对肉兔生长性能、屠宰性能、血清生化指标、抗氧化能力和免疫功能的影响  

Effects of Seabuckthorn Flavonoids on Growth Performance,Slaughtering Performance,Serum Biochemical Indexes,Antioxidant Capacity and Immune Function of Meat Rabbits

作　　者：杜新瑜 刘梅[1] 李建涛[1] 杨桂芹[1] 郭东新[1] 朱宇旌[1] 李方方 DU Xinyu;LIU Mei;LI Jiantao;YANG Guiqin;GUO Dongxin;ZHU Yujing;LI Fangfang(College of Animal Science and Medicine,Shenyang Agricultural University,Shenyang 110866,China)

机构地区：[1]沈阳农业大学动物科学与医学学院,沈阳110866

出　　处：《动物营养学报》2023年第6期3910-3920,共11页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：现代农业产业技术体系建设专项-兔(CARS-43-B-4)。

摘　　要：本试验旨在研究沙棘黄酮对肉兔生长性能、屠宰性能、血清生化指标、抗氧化能力和免疫功能的影响。选取(35±2)日龄、体重相近、健康状况良好的伊拉肉兔120只,随机分为5组,每组6个重复,每个重复4只兔(公母各占1/2)。对照组饲喂基础饲粮,试验组在基础饲粮中分别添加0.01%、0.02%、0.03%和0.04%的沙棘黄酮。预试期7 d,正试期35 d。结果表明:1)与对照组相比,0.02%沙棘黄酮组末重、平均日增重和平均日采食量显著提高(P<0.05),料重比显著降低(P<0.05);0.02%、0.03%和0.04%沙棘黄酮组肉兔腹泻率显著降低(P<0.05)。2)与对照组相比,0.02%沙棘黄酮组屠宰率显著提高(P<0.05),0.01%和0.02%沙棘黄酮组半净膛率和全净膛率显著提高(P<0.05)。3)与对照组相比,0.03%沙棘黄酮组血清总胆固醇、低密度脂蛋白和葡萄糖含量显著降低(P<0.05),0.02%、0.03%和0.04%沙棘黄酮组血清高密度脂蛋白含量显著提高(P<0.05)。4)与对照组相比,0.02%沙棘黄酮组血清和肝脏超氧化物歧化酶活性、总抗氧化能力显著提高(P<0.05),0.02%、0.03%和0.04%沙棘黄酮组血清和肝脏丙二醛含量显著降低(P<0.05)。5)与对照组相比,0.02%沙棘黄酮组胸腺指数和血清免疫球蛋白A、免疫球蛋白G、免疫球蛋白M、白细胞介素-2、白细胞介素-6含量显著提高(P<0.05),0.03%沙棘黄酮组脾脏指数和血清免疫球蛋白G、免疫球蛋白M、白细胞介素-2、白细胞介素-6含量显著提高(P<0.05)。综上所述,饲粮中添加沙棘黄酮能够提高肉兔生长性能,调控胆固醇的代谢,提高高密度脂蛋白和免疫因子含量,提高抗氧化能力,增强免疫功能。本试验条件下,饲粮中沙棘黄酮适宜添加水平为0.02%。This experiment was designed to investigate the effects of seabuckthorn flavonoids on growth per⁃formance,slaughtering performance,serum biochemical indexes,antioxidant capacity and immune function of meat rabbits.A total of 120 healthy(35±2)⁃day⁃old meat rabbits with similar body weight were randomly di⁃vided into 5 groups with 6 replicates per group and 4 rabbits per replicate.The rabbits in the control group were fed a basal diet,and the others in experimental groups were fed basal diets supplemented with 0.01%,0.02%,0.03%and 0.04%seabuckthorn flavonoids,respectively.The pre⁃experiment lasted for 7 days and the experi⁃ment lasted for 35 days.The results showed as follows:1)compared with the control group,the final weight,average daily gain and average daily feed intake of 0.02%seabuckthorn flavonoids group were significantly in⁃creased(P<0.05),and the ratio of feed to gain was significantly decreased(P<0.05);the diarrhea rate of 0.02%,0.03%and 0.04%seabuckthorn flavonoids groups was significantly decreased(P<0.05).2)Com⁃pared with the control group,the dressing rate of 0.02%seabuckthorn flavonoids group was significantly in⁃creased(P<0.05),and the half eviscerated rate and all eviscerated rate of 0.01%and 0.02%seabuckthorn fla⁃vonoids groups were significantly increased(P<0.05).3)Compared with the control group,the contents of total cholesterol,low density lipoprotein and glucose in serum of 0.03%seabuckthorn flavonoids group were significantly decreased(P<0.05),and the serum high density lipoprotein content of 0.02%,0.03%and 0.04%seabuckthorn flavonoids groups was significantly increased(P<0.05).4)Compared with the control group,the serum and liver superoxide dismutase activity and total antioxidant capacity of 0.02%seabuckthorn flavonoids group were significantly increased(P<0.05),and the serum and liver malondialdehyde content of 0.02%,0.03%and 0.04%seabuckthorn flavonoids groups was significantly decreased(P<0.05).5)Com⁃pared with the control group,the thymus index and contents of im

关 键 词：沙棘黄酮 生长性能 血清生化指标 抗氧化能力 免疫功能 肉兔 

分 类 号：S829.1[农业科学—畜牧学]