葡萄糖氧化酶对蛋鸡生产性能的影响

Effect of glucose oxidase on production performance of egg-laying hens

为探讨葡萄糖氧化酶对产蛋鸡生产性能的影响,试验采用单因子试验设计,选择26周龄海兰褐蛋鸡180只,随机分为5组,每组4个重复,每个重复9只鸡。试验Ⅰ(对照)、Ⅱ、Ⅲ、Ⅳ、Ⅴ组在基础日粮中分别添加0、0.1%、0.2%、0.3%、0.4%的葡萄糖氧化酶。预饲期1周,试验期为6周,统计各组产蛋率、料蛋比、平均蛋重、日均采食量、软破畸形蛋率。结果表明:蛋鸡日粮中添加葡萄糖氧化酶,可提高生产性能和经济效益。Ⅱ、Ⅲ、Ⅳ、Ⅴ组与Ⅰ(对照组)相比,产蛋率分别提高11.01%(P>0.05),12.34%(P>0.05),16.06%(P<0.01)和13.79%(P<0.05);破(软)蛋率分别比对照组降低32.77%(P>0.05),33.45%(P>0.05),49.66%(P<0.05)和33.11%(P>0.05)。0.3%和0.4%葡萄糖氧化酶添加组,显著提高了饲料转化率(P<0.05)。葡萄糖氧化酶添加组,显著降低了死淘率,以0.3%和0.4%添加组效果最明显(P<0.01)。0.2%葡萄糖氧化酶添加组,获得最高经济效益(P<0.05)。各试验组间平均蛋重、只日耗料量和只日产蛋量差异不显著(P>0.05)。

For investigating the effect of glucose oxidase on production performance of egg-laying hens,in this experiment,180 twenty-six-week-old Hyline layers were randomly allotted to 5 treatments,with each treatment represented by 4 replicates of 9 birds each.The Hens in treatment Ⅰ,Ⅱ,Ⅲ,Ⅳ and Ⅴ received basal diets with the addition of 0,0.1%,0.2%,0.3%,0.4% glucose oxidase.The experiment lasted six weeks.The egg production rates,feed conversion ratio,average egg weight,feed intake,broken（soft） eggshell were tested.The results were as follows： The hens fed with glucose oxidase can increase the production performance and economic efficiency.Compared with the control group,the egg production rats of group Ⅱ,Ⅲ,Ⅳand Ⅴ increased by 11.01%（（P〉）0.05）,12.34%（P〉0.05）,16.06%（P〈0.01）,13.79%（P〈0.05）,the broken（soft） eggshell rates decreased by 32.77%（P〉0.05）,33.45%（P〉0.05）,49.66%（P〈0.05）,33.11%（P〉0.05）.the additions of 0.3% and 0.4% glucose oxidase significantly enhance（P〈0.05） the feed conversion ratio.Birds fed with glucose oxidase significantly decrease the mortality,and the additions of 0.3% and 0.4% were better（P〈0.01） the trial groups increase the economic efficiency,and the addition of 0.2% glucose oxidase was the best（P〈0.05）.There were no significant effect on egg weight,the day-feed intakes,the day-egg yields among the groups.