日粮中添加沙棘果渣对蛋鸡生产性能及肠道菌群的影响

摘要

为研究沙棘果渣对蛋鸡生产性能及肠道菌群的影响，试验选取180只280日龄海兰褐蛋鸡，随机分为4组，每组3个重复，每个重复15只鸡。对照组饲喂玉米-豆粕型基础日粮，1、2、3组分别在基础日粮中添加0.5%、1%、2%的沙棘果渣，进行为期7周的饲养试验。结果表明：添加沙棘果渣对蛋鸡产蛋率和饲料转化率均有一定改善作用（P ＞0.05），与对照组相比，各试验组肠道中大肠杆菌数分别降低8.23%、5.13%、6.80%（P＜0.01）；双歧杆菌数均极显著增加（P＜0.01）。由此可见，日粮中添加沙棘果渣能够提高蛋鸡的生产性能，可显著改善蛋鸡的肠道环境，促进肠道中有益菌的生长繁殖，抑制有害细菌的生长。%The experiment was conducted to study the effects of the seabuckthorn marc on production performance and gut microflora in laying hens.A total of 180 laying hens of 280-day-old were randomly divided into 4 groups with 3 repli-cates of 15 each.Control group was fed basal diet,group 1,2,3 were fed with basal diet adding 0.5%,1.0% and 2.0%seabuckthorn marc,respectively.The trial lasted for 7 weeks.The results showed that the laying performance and feed conver-sion efficiency were improved with the seabuckthorn marc.Compared with the control group,coil from group 1,2,3 were sig-nificantly reduced by 8.23%,5.13%,6.80%(P<0.01).The amount of Bifidobaterium was significantly increased (P<0.01). The results indicated that basal diet supplemented with the seabuckthorn marc could increase production performance , im-prove the intestinal environment,promote the growth of intestinal benefit bacteria,inhibit the growth of harmful bacteria.