银杏叶复方制剂对AA肉仔鸡生长性能及免疫功能的影响  

Effects of a formulation containing Ginkgo biloba leaves on growth performance and immune function in Arbor Acres broilers

作　　者：岳稳 黄梅丹 李焰[1,2,4] 潘佳佳 李婷 黄杰 李状伟 YUE Wen;HUANG Meidan;LI Yan;PAN Jiajia;LI Ting;HUANG Jie;LI Zhuangwei(Collge of Life Science,Longyan University,Longyan 364000,China;College of Animal Science,Fujian Agriculture and Forestry University,Fuzhou 350000,China;Fujian Provincial Key Laboratory for the Prevention and Control of Animal Infectious Diseases and Biotechnology,Longyan 364000,China;Fujian Provincial Engineering&Technology Research Center for the Prevention and Control of Swine Diseases,Longyan 364000,China)

机构地区：[1]龙岩学院生命科学学院,福建龙岩364000 [2]福建农林大学动物科学学院,福州350000 [3]福建省家畜传染病防治与生物技术重点实验室,福建龙岩364000 [4]福建省生猪疫病防控工程技术研究中心,福建龙岩364000

出　　处：《黑龙江畜牧兽医》2019年第23期106-110,共5页Heilongjiang Animal Science And veterinary Medicine

基　　金：国家自然科学基金面上项目(31470129);龙岩市科技局农业类重点项目(2017LY27)

摘　　要：为研究银杏叶复方制剂对AA肉鸡生长性能及免疫功能的影响,试验将150只1日龄健康AA肉仔鸡随机分成5组,每组6个重复,每个重复5只鸡。空白组和金霉素组分别在基础日粮中添加0,90 mg/kg金霉素,试验组分别在基础日粮添加0.2%、0.3%、0.4%的银杏叶复方制剂,试验期为35 d,分别在不同日龄测定各组的生长性能及成活率,测定21,35日龄的免疫器官指数和35日龄血清免疫球蛋白含量及新城疫抗体效价。结果表明:1)0.2%组与金霉素组相比能降低29~35 d肉鸡的料重比(P<0.05)。2)与空白组和金霉素组比较,添加银杏叶复方制剂对肉鸡成活率影响均不显著(P>0.05),但相对金霉素组有升高趋势。3)与空白组和金霉素组相比,添加银杏叶复方制剂组的肉鸡免疫器官指数差异均不显著(P>0.05)。4)各银杏叶复方制剂组均能提高IgA含量(P>0.05);0.2%组和0.4%组能显著提高IgM含量(P<0.05);0.3%组能显著提高IgG含量(P<0.05),而0.2%组也有提高的趋势(P>0.05)。5)0.2%组能显著提高新城疫抗体效价(P<0.05)。说明日粮中添加0.2%银杏叶复方制剂有助于提高A A肉仔鸡的生长性能和免疫功能。:In order to investigate the effect of a formulation containing Ginkgo biloba leaves(GBLF)on growth performance and immune function in Arbor Acres(AA)broilers.Healthy 1-d-old broilers(n=150)were randomly allocated into 5 groups of 6 replicates each with 5 chickens per replicate.Broilers were fed a basal diet incorporated with 0 and 90 mg/kg of aureomycin served as the control and aureomycin groups,respectively.The broilers in the experimental groups were fed the basal diet supplemented with 0.2%,0.3%and 0.4%GBLF,respectively.All animals were fed for 35 d,the growth performance and survival rate of each group were measured at different ages,and the 21,35-d-old immune organ index and 35-d-old serum immunoglobulin content and Newcastle disease antibody titer were determined.The results showed as follows:1)Dietary supplementation of 0.2% GBLF reduced feed conversion ratio(FCR)between 28 d and 35 d of feeding compared with aureomycin(P<0.05).2)GBLF had no significant impact on the survival rate of broilers compared with the control and aureomycin groups(P>0.05),but the survival rate of GBLF groups was increased relative to aureomycin group.3)GBLF led to no significant differences in the investigated immune organ indexes compared with the control and aureomycin groups(P>0.05).4)GBLF at all doses increased IgA level(P>0.05);the level of IgM was significantly increased when supplemented at 0.2%and 0.4%GBLF groups(P<0.05)and GBLF increased the level of IgG in the group of 0.3%(P<0.05)and 0.2%GBLF(P>O.05).5)the supplementation of 0.2%GBLF significantly increased anti-newcastle disease virus antibody titer(P<O.05).Finally we concluded that dietary supplementation of 0.2% GBLF can improve growth performance and immune function in AA broilers.

关 键 词：银杏叶复方制剂 AA肉仔鸡 生长性能 免疫功能 成活率 

分 类 号：S816.7[农业科学—饲料科学] S831[农业科学—畜牧学]