饲粮添加不同水平果胶寡糖螯合锌对肉仔鸡生长性能、免疫功能和血清抗氧化功能的影响  

Effects of Different Dietary Zinc-Pectic Oligosaccharide Chelate Supplemental Levels on Growth Performance,Immune Function and Serum Antioxidant Capacity of Broilers

作　　者：王中成[1] 吴学壮[2] 崔虎[1] 万春孟 张铁涛[3] 彭晴[1] 于会民[1] 高秀华[1] 

机构地区：[1]中国农业科学院饲料研究所农业部饲料生物技术重点实验室,北京100081 [2]遵义师范学院农业科技学院,遵义563002 [3]中国农业科学院特产研究所,长春130112

出　　处：《动物营养学报》2016年第6期1757-1764,共8页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：公益性行业科研专项"饲料中抗生素替代品关键研究与示范"(201403047);"948"重点项目"低碳氮"排放的饲料高效利用技术引进与开发(2011-G7);果胶寡糖及其络合物创新与应用(2014EG134239)

摘　　要：本试验旨在研究饲粮添加不同水平果胶寡糖螯合锌（zinc-pectic oligosaccharide chelate,Zn-POS）对爱拔益加（AA）肉仔鸡生长性能、免疫功能和血清抗氧化能力的影响。选用1日龄健康、体况较一致的AA肉仔鸡480只（公母各占1/2）,根据体重一致原则随机分为5组,每组6个重复,每个重复16只鸡。其中Ⅰ组为基础饲粮组;Ⅱ组为抗生素组,在基础饲粮中添加62.5 mg/kg黄霉素;Ⅲ、Ⅳ和Ⅴ组为Zn-POS组,在基础饲粮中分别添加300、600和900 mg/kg Zn-POS。试验期42 d。结果表明：1）1-21日龄,与Ⅰ组相比,Ⅲ、Ⅳ组平均日增重显著提高（P〈0.05）;与Ⅱ组相比,Ⅲ、Ⅳ组体重显著提高（P〈0.05）。22-42日龄,与Ⅰ组相比,Ⅲ、Ⅳ组平均日增重显著提高（P〈0.05）,Ⅳ组平均日采食量显著提高（P〈0.05）。1-42日龄,与Ⅰ组相比,Ⅳ组平均日增重极显著提高（P〈0.01）,Ⅲ、Ⅴ组平均日增重显著提高（P〈0.05）,Ⅳ组平均日采食量显著提高（P〈0.05）;Ⅱ组平均日增重极显著高于Ⅰ组（P〈0.01）。2）Ⅱ组法氏囊指数显著高于Ⅰ组（P〈0.05）,但Ⅱ组血清中免疫球蛋白G水平显著低于Ⅰ组（P〈0.05）。3）Ⅲ组血清总超氧化物歧化酶活性极显著高于Ⅰ组（P〈0.01）,Ⅲ、Ⅴ组血清过氧化氢酶活性显著高于Ⅰ组（P〈0.05）;Ⅳ、Ⅴ组血清丙二醛含量显著低于Ⅲ组（P〈0.05）。由此可见,饲粮中添加Zn-POS能改善1-42日龄AA肉仔鸡生长性能、免疫功能和血清抗氧化功能,以600 mg/kg添加水平较为适宜。This experiment was conducted to investigate the effects of different dietary zinc-pectic oligosaccharide chelate（ Zn-POS） supplemental levels on growth performance,immune function and serum antioxidant capacity of Arbor Acre（ AA） broilers. A total of 480 one-day-old AA broilers were randomly divided into 5groups with 6 replicates per group and 16 chicks per replicate. Group Ⅰ was a basal diet group,group Ⅱ was the antibiotics group supplemented with 62.5 mg / kg flavomycin,and groups Ⅲ,Ⅳ and Ⅴ were Zn-POS groups,which supplemented with 300,600 and 900 mg / kg Zn-POS,respectively. The whole experiment lasted for 42 d. The results showed as follow s： 1） from 1 to 21 days of age,compared with group Ⅰ,the average daily gain was significantly increased in groups Ⅲ and Ⅳ（ P〈0.05）. Compared with group Ⅱ,the body weight in groups Ⅲ and Ⅳ was significantly increased（ P〈0.05）. From 22 to 42 days of age,compared with group Ⅰ,the average daily gain in groups Ⅲ and Ⅳ was significantly increased（ P〈0.05）,and the average daily feed intake in group Ⅳ was significantly increased（ P〈0.05）. From 1 to 42 days of age,compared with group Ⅰ,the average daily gain in group Ⅳ was extremely significantly increased（ P〈0.01）,the average daily gain in groups Ⅲ and Ⅴ was significantly increased（ P〈0.05）,and the average daily feed intake in groupⅣ was significantly increased（ P〈0.05）.The average daily gain in group Ⅱ was extremely significantly higher than that in group Ⅰ（ P〈0.01）.2） Compared with group Ⅰ,the bursa of Fabricius index in group Ⅱ was significantly improved（ P〈0.05）,but the serum immunoglobulin G（ Ig G） level in group Ⅱ was significantly decreased（ P〈0.05）.3） Compared with group Ⅰ,the serum total superoxide dismutase activity in group Ⅲw as significantly increased（ P〈0.05）,and the serum catalase activity in groups Ⅲ and Ⅴ was significantly increased（ P〈0.05）,too. Compared with grou

关 键 词：果胶寡糖螯合锌 生长性能 免疫功能 血清抗氧化功能 AA肉仔鸡 

分 类 号：S816.7[农业科学—饲料科学]