饲粮中添加黄芪多糖对蛋鸡血清及蛋黄中脂肪性状的影响  

Effects of Dietary Astragalus Polysaccharides on Fat Traits in Serum and Yolk of Laying Hens

作　　者：杨秋霞[1] 王洪芳[2] 陈辉[1] 黄仁录[1] 王翠菊[1] 高杨[1] 

机构地区：[1]河北农业大学动物科技学院,保定071001 [2]沧州职业技术学院,沧州061001

出　　处：《动物营养学报》2011年第12期2143-2148,共6页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家蛋鸡产业技术体系(CARS-41-K18)

摘　　要：本试验旨在研究饲粮中添加不同水平黄芪多糖(APS)对蛋鸡脂肪性状的影响。试验选取生产性能相近的380日龄海兰灰蛋鸡1 440只,随机分为6组,每组4个重复,每个重复60只。Ⅰ组为对照组,饲喂玉米-豆粕型基础饲粮,Ⅱ、Ⅲ、Ⅳ、Ⅴ、Ⅵ组为试验组,分别饲喂在基础饲粮中添加50、100、150、200和250 mg/kg黄芪多糖的试验饲粮,预试期1周,试验期8周。结果表明:试验Ⅱ组和试验Ⅳ组蛋鸡料蛋比较低,显著低于对照组和试验Ⅴ组(P<0.05)。试验组蛋鸡血清总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)和高密度脂蛋白胆固醇(HDL-C)的含量均有不同程度的降低,其中试验Ⅳ组蛋鸡血清TC含量最低,与对照组差异显著(P<0.05);试验Ⅱ组蛋鸡血清TG含量最低,显著低于对照组和试验Ⅴ组(P<0.05);试验Ⅳ组蛋鸡血清LDL-C和HDL-C含量均最低,但各组间均差异不显著(P>0.05)。试验Ⅱ、Ⅴ、Ⅵ组蛋黄中TG含量较低,显著低于对照组(P<0.05),但与其他组差异不显著(P>0.05)。各试验组蛋黄中TC和LDL-C含量有所降低,HDL-C含量有所提高,但均差异不显著(P>0.05)。结果提示,黄芪多糖能够调节脂质代谢,以50～150 mg/kg为蛋鸡饲粮适宜添加量。The objective of this experiment was to study the effects of different dietary Astragalus polysaccharides（APS） levels on fat traits of laying hens.A total of 1 440 Hy-line laying hens at the age of 380 days with the same performance were randomly divided into 6 groups with 4 replicates per group and 60 hens per replicate.Laying hens in a control group（group Ⅰ） were fed a corn-soybean meal based diet,and others in experimental groups were fed the basal diet with 50（group Ⅱ）,100（group Ⅲ）,150（group Ⅳ）,200（group Ⅴ） and 250 mg/kg APS（group Ⅵ）,respectively.The experiment lasted for 9 weeks including one week preliminary trial.The results showed that the ratios of feed to egg of laying hens in groups Ⅱ and Ⅳ were significantly lower than those in the control group and group Ⅴ（P0.05）.APS could decrease the contents of total cholesterol（TC）,triglyceride（TG）,low-density lipoprotein cholesterol（LDL-C） and high-density lipoprotein cholesterol（HDL-C） in serum of laying hens to some extent.The TC content in serum of laying hens in group Ⅳ was the lowest of all groups,and there was a significant difference between group Ⅳ and the control group（P0.05）;the TC content in serum of laying hens in group Ⅱ was the lowest of all groups,and it was lower than that in the control group and group Ⅴ（P0.05）;the contents of LDL-C and HDL-C in serum of laying hens in group Ⅳ were the lowest of all groups,but there were no significant differences among all groups（P0.05）.The TG content in yolk of laying hens in groups Ⅱ,Ⅳ and Ⅵ was lower of all groups,and it was lower than that in the control group（P0.05）,but there was no significant difference between the three groups and the other groups（P0.05）.APS could decrease the contents of TG and LDL-C,increase the content of HDL-C in yolk to some extent,but there were no significant differences among all groups（P0.05）.In conclusion,APS can regulate lipid metabolism,and the range suitable for APS in

关 键 词：黄芪多糖 蛋鸡 脂质代谢 

分 类 号：S816.7[农业科学—饲料科学]