饲粮中添加姜黄素对舍饲羔羊生长性能、营养物质表观消化率、能氮代谢和血清生化指标的影响  

Effects of Dietary Curcumin on Growth Performance,Nutrient Apparent Digestibility,Energy and Nitrogen Metabolism and Serum Biochemical Indices of Barn Feeding Lambs

作　　者：田光元 郝小燕 任国栋 张暄梓 王兴岗 张建新[1] TIAN Guangyuan;HAO Xiaoyan;REN Guodong;ZHANG Xuanzi;WANG Xinggang;ZHANG Jianxin(College of Animal Science,Shanxi Agricultural University,Jinzhong 030801,China)

机构地区：[1]山西农业大学动物科学学院,晋中030801

出　　处：《动物营养学报》2022年第9期5964-5973,共10页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：财政部和农业农村部国家现代肉羊产业技术体系资助(CARS-38);山西省1331工程建设项目。

摘　　要：本试验旨在研究饲粮中添加姜黄素(CUR)对舍饲羔羊生长性能、营养物质表观消化率、能氮代谢和血清生化指标的影响。采用单因素完全随机试验设计,将48只体重[(20.89±1.15)kg]相近的4月龄左右的杜泊×小尾寒羊杂交1代公羔随机分为4组,每组12只。各组分别在基础饲粮中添加0(对照组)、300(300CUR组)、600(600CUR组)、900 mg/kg(900CUR组)CUR。试验期90 d,其中预试期15 d,饲养试验60 d,消化代谢试验15 d。结果表明:1)300CUR组和600CUR组终末体重显著高于对照组(P<0.05),300CUR组平均日增重(ADG)显著高于对照组(P<0.05),300CUR组料重比(F/G)显著低于对照组和600CUR组(P<0.05)。以1~60 d总增重为评价指标,通过回归分析得出饲粮中CUR适宜添加量为487.5 mg/kg。2)300CUR组中性洗涤纤维(NDF)表观消化率显著高于对照组(P<0.05)。3)300CUR组沉积氮和氮表观消化率显著高于对照组(P<0.05)。4)300CUR组甲烷能显著低于对照组(P<0.05),300CUR组和600CUR组消化能和代谢能显著高于对照组(P<0.05),300CUR组总能代谢率显著高于对照组和900CUR组(P<0.05)。5)300CUR组血清甘油三酯含量显著低于对照组(P<0.05),600CUR组血清一氧化氮合酶活性显著低于对照组、300CUR组和900CUR组(P<0.05)。综上所述,饲粮中添加CUR可提高舍饲羔羊NDF表观消化率和氮代谢、能量代谢水平,降低血清甘油三酯含量,从而促进生长性能。通过回归分析得出,饲粮中CUR适宜添加量为487.5 mg/kg。This study was conducted to investigate the effects of dietary curcumin(CUR)on growth performance,nutrient apparent digestibility,energy and nitrogen metabolism and serum biochemical indices of barn feeding lambs.A single-factor completely randomized experimental design was adopted,and forty-eight 4-month-old Dorper×Thin-Tailed Han F 1 hybrid male lambs with similar body weight[(20.89±1.15)kg]were randomly divided into 4 groups with 12 lambs in each group.Lambs in 4 groups were fed basal diets supplemented with 0(CON),300(300CUR group),600(600CUR group)and 900 mg/kg(900CUR group)CUR,respectively.The experiment lasted for 90 days,the pre-experiment period was 15 days,the feeding experiment was 60 days,and the digestion and metabolism experiment was 15 days.The results showed as follows:1)the final body weight of 300CUR group and 600CUR group was significantly higher than that of the control group(P<0.05),the average daily gain(ADG)of 300CUR group was significantly higher than that of the control group(P<0.05),and the feed to gain ratio(F/G)of 300CUR group was significantly lower than that of control group and 600CUR group(P<0.05).According to the total weight gain during 1 to 60 d as the evaluation index,the dietary optimal supplemental level of CUR was 487.5 mg/kg by regression analysis.2)The neutral detergent fiber(NDF)apparent digestibility of 300CUR group was significantly higher than that of the control group(P<0.05).3)The nitrogen deposition,apparent digestibility of nitrogen of 300CUR group were significantly higher than those of the control group(P<0.05).4)The methane energy of 300CUR group was significantly lower than that of the control group(P<0.05),the digestible energy and metabolic energy of 300CUR group and 600CUR group were significantly higher than those of the control group(P<0.05),and the gross energy metabolic rate of 300CUR group was significantly higher than that of control group and 900CUR group(P<0.05).5)The serum triglyceride content of 300CUR group was significantly lower than that of t

关 键 词：姜黄素 生长性能 营养物质表观消化率 羔羊 血清生化指标 

分 类 号：S826[农业科学—畜牧学]