日粮中添加沸石对蛋鸡生产性能的影响

Effect of Zeolite Supplement in ration on Performance of Layers

本试验选用本校牧场39周龄体健海兰商品蛋鸡1000只,随机分为五个组Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ,每组设四个重复,试验Ⅰ组为不含沸石的对照组,试验Ⅱ、Ⅲ、Ⅳ、Ⅴ组分别在其日粮中用1%,3%,5%,7%的沸石代替玉米或豆粕,每组200只鸡在同一鸡舍笼养(温度、湿度、光照均满足正常生产需要)。试验结果表明,除第Ⅴ组外,所有试验组的产蛋率分别高于对照组0.02%、3.09%、0.36%,饲料利用率分别提高0.84%、5.42%、2.50%。经统计分析,添加3%、5%沸石的两组产蛋率和料蛋比与对照组相比,差异极显著(P<0.01)。试验结果表明,产蛋鸡日粮中添加3%的沸石,生产性能和经济效益最佳。

Hy-line layers were divided into5groups(200layers,4replications in each group).Zeolite was supplemented at the same time mealie or bean cake were reduced in basal diets of the treatment groups(Ⅱ,Ⅲ,Ⅳ,Ⅴ)at the rate1%,3%,5%,7%respectively during the4-week test period.Temperature,humidity and illumination accord with the normal need of the layers.The results showed that the laying rate increased0.02%,3.09%,0.36%(P<0.05)in treatment groups(Ⅱ,Ⅲ,Ⅳ).With increasing utilization rate of the feedstuff(0.84%,5.42%,2.50%,respectively),(P<0.01).but it reduced in treament Ⅴ.It also indicated that groupⅢhad the best laying performance among the four treatment guoups.