机构地区:[1]塔里木大学动物科学与技术学院,新疆阿拉尔843300 [2]塔里木大学生命科学与技术学院,新疆阿拉尔843300 [3]塔里木畜牧科技兵团重点实验室,新疆阿拉尔843300
出 处:《中国饲料》2024年第17期110-116,共7页China Feed
摘 要:为研究复方中草药添加剂对青年海兰褐蛋鸡生产性能、产蛋初期性能、抗氧化能力以及肠道菌群的影响,本试验选取12周龄健康青年海兰褐蛋鸡600只,随机分为3组,对照组饲喂基础饲粮,试验Ⅰ组和试验Ⅱ组分别在基础饲粮中添加0.2%和0.4%复方中草药添加剂,每组4个重复,每个重复50只鸡。预饲期2周,正饲期8周。结果表明:(1)饲粮中添加0.4%复方中草药可有效提高青年海兰褐蛋鸡的日增重、日均采食量,降低料重比(P <0.05),饲粮中添加0.2%和0.4%复方中草药均可有效提高青年海兰褐蛋鸡的产蛋初期产蛋率,降低料蛋比和破损蛋率(P <0.05),使开产日龄提前;(2)饲粮中添加0.2%和0.4%复方中草药均可显著提高海兰褐蛋鸡血清中谷胱甘肽过氧化物酶(GSH-Px)、过氧化氢酶(CAT)和总抗氧化能力(T-AOC)的含量,降低丙二醛(MDA)的含量(P <0.05);(3)添加0.2%、0.4%中草药添加剂组海兰褐蛋鸡盲肠微生物菌群在门水平上表现为拟杆菌门(Bacteroidetes)等有益菌丰度提高,变形菌门(Proteobacteria)等有害菌丰度得到了降低;(4)添加0.2%、0.4%中草药添加剂组海兰褐蛋鸡盲肠微生物菌群在属水平上表现为考拉杆菌属丰度较对照组降低(P <0.05),拟杆菌属、普拉梭菌属和颤螺菌属的丰度有所提升,瘤胃球菌属丰度降低(P> 0.05)。综上所述,在饲粮中添加0.4%的甘草、沙枣、石榴皮、枸杞(1:1:1:1)复方中草药添加剂能够提高青年海兰褐蛋鸡的生产性能、抗氧化能力,改善肠道菌群结构。This study was conducted to study the effects of compound Chinese herbal additives including licorice,jujube,pomegranate peel and wolfberry on growth performance,early laying performance,antioxidant capacity and intestinal flora of young Hyline brown laying hens.In this experiment,600 healthy young Hyline brown laying hens aged 12 weeks were randomly divided into 3 groups,with 4 replicates in each group and 50 chickens in each replicate.The control group was fed a basal diet,and trial group I and trial group II were fed the basal diet supplemented with 0.2% and 0.4% compound Chinese herbal additives,respectively.The pre-feeding period was 2 weeks and the normal feeding period was 8 weeks.The results showed that:(1)Dietary supplementation of 0.4%compound Chinese herbs effectively increased the daily gain,daily feed intake,and decreased the feed to weight ratio of Hyline brown laying hens(P>0.05).Dietary supplementation of 0.2% and 0.4% compound Chinese herbs effectively increased the initial laying rate of young Hyline brown laying hens,and decreased the ratio of feed to egg and the rate of broken eggs(P<0.05).Advance the starting age of labor;(2)Dietary supplementation of 0.2% and 0.4% compound Chinese herbs significantly increased the contents of glutathione peroxidase(GSH-Px),catalase(CAT)and total antioxidant capacity(T-AOC)in serum of Hyline Brown laying hens,and decreased the content of malondialdehyde(MDA)(P<0.05);(3)At the phylum level,the cecal microflora of Hy-line brown laying hens supplemented with 0.2%and 0.4%Chinese herbal additives showed that the abundance of beneficial bacteria such as Bacteroidetes was increased,while the abundance of harmful bacteria such as Proteobacteria was decreased;(4)At the genus level,the cecal microbiota of Hyline brown laying hens supplemented with 0.2% and 0.4% Chinese herbal medicine additives showed that the abundance of Koala was lower than that of the control group(P<0.05),the abundance of Bacteroides,Prasurella and Trispirillum was increased,and the abundance of R
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