核黄素对羔羊生长性能、氮代谢及血清生化和抗氧化指标的影响  

Effects of Riboflavin on Growth Performance,Nitrogen Metabolism and Serum Biochemical and Antioxidant Indices of Lambs

作　　者：任娜 张暄梓 郝小燕 项斌伟 张建新[1] REN Na;ZHANG Xuanzi;HAO Xiaoyan;XIANG Binwei;ZHANG Jianxin(College of Animal Science,Shanxi Agricultural University,Taigu 030801,China;Modern Agricultural Development Service Centre in Youyu County,Youyu 037200,China)

机构地区：[1]山西农业大学动物科学学院,太谷030801 [2]右玉县现代农业发展服务中心,右玉037200

出　　处：《动物营养学报》2023年第5期3183-3189,共7页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家现代农业产业技术体系建设专项资金(CARS-38);山西省现代农业产业技术体系建设专项资金;山西省1331工程建设项目。

摘　　要：本试验旨在研究核黄素对羔羊生长性能、氮代谢及血清生化和抗氧化指标的影响。选取48只体重(18.80±0.83)kg的3月龄纯种湖羊公羔,随机分为4个组,每组12只。各组分别在基础饲粮中添加0(对照组)、15(LRF组)、30(MRF组)和45 mg/kg(HRF组)的核黄素。预试期15 d,正试期70 d。结果表明:1)MRF组平均日增重显著高于HRF组和对照组(P<0.05),MRF组料重比显著低于对照组(P<0.05)。2)MRF组可消化氮和沉积氮显著高于HRF组和对照组(P<0.05),MRF组氮的表观消化率显著高于对照组(P<0.05)。3)LRF组、MRF组和HRF组血清葡萄糖(GLU)和生长激素(GH)含量显著高于对照组(P<0.05),MRF组和HRF组血清核黄素含量显著高于对照组(P<0.05),MRF组和HRF组血清尿素氮(UN)含量显著低于对照组(P<0.05)。4)MRF组和HRF组血清总抗氧化能力(T-AOC)和过氧化氢酶(CAT)活性显著高于对照组(P<0.05),HRF组血清丙二醛(MDA)含量显著低于对照组(P<0.05)。由此可见,本试验条件下,饲粮添加30 mg/kg核黄素提高了羔羊生长性能,改善了氮代谢和血清生化、抗氧化指标。This experiment was conducted to study the effects of riboflavin on growth performance,nitrogen metabolism and serum biochemical and antioxidant indices of lambs.Forty-eight 3-month-old purebred Hu male lambs with body weight of(18.80±0.83)kg were randomly assigned to four groups with 12 lambs per group.Lambs in 4 groups were fed basal diets supplemented with 0(control group),15(LRF group),30(MRF group)and 45 mg/kg(HRF group)riboflavin,respectively.The pre-experimental period lasted for 15 days,and the experimental period lasted for 70 days.The results showed as follows:1)the average daily gain of MRF group was significantly higher than that of MRF group and control group(P<0.05),and the feed to gain ratio of MRF group was significantly lower than that of the control group(P<0.05).2)The digested nitrogen and retained nitrogen of MRF group were significantly higher than those of MRF group and control group(P<0.05),and the apparent digestibility of nitrogen of MRF group was significantly higher than that of the control group(P<0.05).3)The contents of glucose(GLU)and growth hormone(GH)in serum of LRF,MRF and HRF groups were significantly higher than those of the control group(P<0.05),the serum riboflavin content of MRF and HRF groups was significantly higher than that of the control group(P<0.05),and the serum urea nitrogen(UN)of MRF and HRF groups was significantly lower than that of the control group(P<0.05).4)The serum total antioxidant capacity(T-AOC)and catalase(CAT)activity of MRF and HRF groups were significantly higher than those of the control group(P<0.05),and the serum malondialdehyde(MDA)content of HRF group was significantly lower than that of the control group(P<0.05).In conclusion,dietary 30 mg/kg riboflavin can improve the growth performance,nitrogen metabolism and serum biochemical and antioxidant indices of lambs.

关 键 词：核黄素 羔羊 生长性能 氮代谢 抗氧化 

分 类 号：S826[农业科学—畜牧学]