约氏乳杆菌对产蛋鸡生产性能、蛋品质和免疫机能的影响  

Lactobacillus johnsonii: Effects on Performance,Egg Quality and Immune Function of Laying Hens

作　　者：鲍延娥[1] 汪攀[2] 董晓芳[1] 王安如[2] 佟建明[1] 王少璞[1] 张军[2] 胡婷[2] 

机构地区：[1]中国农业科学院北京畜牧兽医研究所,北京100193 [2]北京大北农科技集团股份有限公司,饲用微生物工程国家重点实验室,北京100080

出　　处：《动物营养学报》2013年第3期595-602,共8页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家蛋鸡产业技术体系建设专项经费(CARS-41-K16);“973”计划资助项目(2010CB35703)

摘　　要：本试验旨在研究饲粮中添加约氏乳杆菌对产蛋鸡生产性能、蛋品质和免疫机能的影响。试验选取体重和产蛋率相近的540只130日龄海兰褐产蛋鸡,随机分成6组(每组6个重复,每个重复15只):对照组饲喂基础饲粮,试验组饲喂在基础饲粮中分别添加1.0×104、1.0×105、1.0×106、1.0×107和1.0×108 CFU/g约氏乳杆菌的试验饲粮,试验期24周(168d)。结果表明:1)饲粮中添加1.0×105 CFU/g约氏乳杆菌可以在一定程度上改善产蛋鸡产蛋率、平均蛋重、平均日采食量和料蛋比,其中对试验17～24周时的料蛋比影响显著(P<0.05);2)饲粮中添加1.0×104～1.0×108 CFU/g约氏乳杆菌对产蛋鸡蛋壳强度、蛋白高度和哈氏单位均无显著影响(P>0.05),但能够显著提高鸡蛋的蛋黄颜色(P<0.05);3)仅饲粮中添加1.0×106 CFU/g约氏乳杆菌能够提高试验第35天时的血清新城疫抗体效价(P<0.01),但与添加1.0×105、1.0×107和1.0×108 CFU/g约氏乳杆菌一样会降低试验第7天和第35天时的免疫球蛋白A水平(P<0.01),同时可提高试验第28天时的免疫球蛋白A水平(P<0.01)。结果提示,饲粮中添加适量的约氏乳杆菌能够改善产蛋鸡的生产性能和蛋品质,调节机体的免疫功能。This experiment was conducted to study the effects of dietary Lactobacillus johnsonni （L. johnsonni） on performance, egg quality and immune function of laying hens. Five hundred and forty Hy-Line brown laying hens aged 130 days were randomly allocated into 6 groups with 6 replicates per group and 15 birds per replicate. Laying hens in control group were fed a basal diet, and those in trial groups were fed the basal diet supplemented with 1.0 10, 1.0 x 10^5, 1.0 x 10^6, 1.0 X 10^7 and 1.0 x 10^8 CFU/g L. johnsoni, respectively. The experiment lasted for 24 weeks （168 days）. The results showed as follows： 1 ） the laying rate, aver- age egg weight, average daily feed intake and feed/egg in 1.0 x 10^5 CFU/g L. johnsonii group were improved to a certain extent, in which feed/egg at 17 to 24 weeks of the experiment was significantly affected （P 〈 0.05） ; 2 ） dietary 1.0 x 10^4 to 1.0 x 10^8 CFU/g L. johnsonii significantly increased the yolk color （ P 〈 0.05 ） , but the shell strength, albumen height and Haugh unit were not significantly affected （ P 〉 0.05 ） ; 3 ） only 1.0 x 10^6 CFU/g L. johnsonii significantly increased the antibody titer to Newcastle disease on day 35 （ P 〈0.01 ） , but reduced the IgA level on days 7 and 35 and increased IgA level on day 28 like the supplementation of 1.0 x 10^5, 1.0 x 10v and 1.0 x 10^8 CFU/g L. johnsonii （ P 〈0.01 ）. It is concluded that dietary appropriate L. johnsonii can improve the performance and egg quality, andregulate the immunological function of laying hens.

关 键 词：约氏乳杆菌 产蛋鸡 生产性能 蛋品质 免疫机能 

分 类 号：S816.7[农业科学—饲料科学]