地顶孢霉培养物对蛋鸡生产性能、蛋品质、抗氧化能力、免疫功能和肠道形态的影响  

Effects of Acremonium terricola Culture on Performance,Egg Quality,Antioxidant Capacity,Immune Function and Intestinal Morphology of Laying Hens

作　　者：刘雅婷 陈贵才 张丽佳 简华锋 李燕[1] 牟天铭 董信阳[1] 邹晓庭[1] LIU Yating;CHEN Guicai;ZHANG Lijia;JIAN Huafeng;LI Yan;MOU Tianming;DONG Xinyang;ZOU Xiaoting(Key Laboratory of Animal Feed and Nutrition of Zhejiang Province,College of Animal Science,Zhejiang University,Hangzhou 310058,China;Zhejiang Esigma Biothchnology Co.,Ltd.,Haining 314422,China)

机构地区：[1]浙江大学动物科学学院,浙江省饲料与动物营养重点实验室,杭州310058 [2]浙江汇能生物股份有限公司,海宁314422

出　　处：《动物营养学报》2023年第4期2286-2295,共10页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：浙江省“尖兵”“领雁”研发攻关计划项目(2022C02073);海宁市协同创新示范项目(20210107)。

摘　　要：本试验旨在研究地顶孢霉培养物(ATC)对蛋鸡生产性能、蛋品质、抗氧化能力、免疫功能和肠道形态的影响。选取健康且体重相近的70周龄伊莎褐蛋鸡960只,随机分为5个组,每组6个重复,每个重复32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0.05%、0.10%、0.15%和0.20%ATC的饲粮。预试期1周,正试期9周。结果表明:1)与对照组相比,饲粮添加0.10%、0.15%和0.20%的ATC显著提高了平均日产蛋重(P<0.05),饲粮添加0.15%和0.20%的ATC显著降低了料蛋比(P<0.05)。2)与对照组相比,饲粮添加不同水平的ATC均显著提高了平均蛋重(P<0.05),饲粮添加0.05%的ATC显著提高了蛋白高度和哈氏单位(P<0.05)。3)与对照组相比,饲粮添加0.05%、0.10%和0.20%的ATC显著降低了血清尿素氮(UN)含量(P<0.05)。4)与对照组相比,饲粮添加0.15%的ATC显著提高了血清谷胱甘肽过氧化物酶(GSH-Px)活性(P<0.05),饲粮添加0.05%、0.10%和0.20%的ATC显著降低了血清丙二醛(MDA)含量(P<0.05);各ATC添加组血清过氧化氢酶(CAT)活性均显著提高(P<0.05)。5)与对照组相比,饲粮添加0.20%的ATC显著提高了血清免疫球蛋白G(IgG)含量(P<0.05),饲粮添加0.15%和0.20%的ATC显著提高了血清免疫球蛋白M(IgM)含量(P<0.05)。6)与对照组相比,在空肠中,饲粮添加0.20%的ATC显著提高了绒毛高度(P<0.05);各ATC添加组隐窝深度均显著降低(P<0.05),绒隐比(绒毛高度/隐窝深度)均显著提高(P<0.05)。与对照组相比,在回肠中,各ATC添加组绒毛高度和绒隐比均显著提高(P<0.05),隐窝深度均显著降低(P<0.05)。综上所述,饲粮添加ATC可增强蛋鸡的免疫功能和抗氧化能力,改善空肠和回肠形态结构,进而改善蛋品质,降低料蛋比,且以添加0.20%的ATC效果较佳。This experiment was conducted to investigate the effects of Acremonium terricola culture(ATC)on performance,egg quality,antioxidant capacity,immune function and intestinal morphology of laying hens.A total of 960 healthy 70-week-old Isa brown layers with similar body weight were randomly assigned into 5 groups with 6 replicates in each group and 32 hens in each replicate.Hens in the control group were fed a basal diet,and those in the experimental groups were fed the basal diet supplemented with 0.05%,0.10%,0.15%and 0.20%ATC,respectively.The trial pre-period was 1 week,and the formal period was 9 weeks.The results showed as follows:1)compared with the control group,dietary 0.10%,0.15%and 0.20%ATC significantly increased the average daily egg weight(P<0.05),and dietary 0.15%and 0.20%ATC significantly decreased the feed to egg ratio(P<0.05).2)Compared with the control group,different dietary levels of ATC significantly increased the average egg weight(P<0.05),and dietary 0.05%ATC significantly increased the protein height and Haugh unit(P<0.05).3)Compared with the control group,dietary 0.05%,0.10%and 0.20%ATC significantly decreased the serum urea nitrogen(UN)content(P<0.05).4)Compared with the control group,dietary 0.15%ATC significantly increased the serum glutathione peroxidase(GSH-Px)activity(P<0.05),dietary 0.05%,0.10%and 0.20%significantly decreased the serum malondialdehyde(MDA)content(P<0.05),and the serum catalase(CAT)activity in all ATC supplement groups was significantly increased(P<0.05).5)Compared with the control group,dietary 0.20%ATC significantly increased the serum immunoglobulin G(IgG)content(P<0.05),and dietary 0.15%and 0.20%ATC significantly increased the serum immunoglobulin M(IgM)content(P<0.05).6)Compared with the control group,in the jejunum,dietary 0.20%ATC significantly increased the villus height(P<0.05);the crypt depth in all ATC supplemental groups was significantly decreased(P<0.05),and the ratio of villus height to crypt depth was significantly increased(P<0.05).Compared with the con

关 键 词：地顶孢霉培养物 蛋鸡 生产性能 抗氧化能力 免疫功能 肠道形态 

分 类 号：S816.7[农业科学—饲料科学]