日粮中添加铜对产蛋鸡生产性能及蛋品质的影响

Effect of diets supplemented with copper on perfor-mance and egg quality of laying hens

本试验选择五水硫酸铜作为饲料添加的铜源,以产蛋高峰期的海兰褐壳蛋鸡为试验动物,研究日粮中添加60mg/kg的铜对蛋鸡生产性能、蛋品质的影响。试验选取40周龄的海兰褐壳蛋鸡104只,设两个处理,每个处理4个重复,每个重复13只鸡。对照组饲喂基础日粮,试验组饲喂基础日粮+硫酸铜52mg/kg。试验结果表明:1)与对照组相比,试验组能够提高产蛋鸡的各项生产性能,日产蛋重、产蛋率、料蛋比、日采食量均有上升趋势(P>0.05)。2)与对照组相比,试验组的蛋形指数差异不显著(P>0.05),蛋壳厚度变厚(P>0.05),蛋白、蛋黄重以及蛋白蛋黄的比值差异不显著(P>0.05),破软蛋率下降(P>0.05)。

In the trial,104 40-week-old laying hens were alloted to two treatments to determine effects of capric sulphate(CuSO4·5H2O)supplement on performence and egg quality of laying hens.Each treatment was assigned four replicates.52 mg/kg capric sulphate was added in the basal diet,the main results were summarized as follows:1)Comparing with the control group,each group can improve different performance index including egg weight,egg production,feed/egg and intake(P > 0.05).2)Comparing with the control group,capric sulphate supplement have no significant effects on egg index,albumen and yolk weight and their ration(P > 0.05),while thickness of egg shell strengh increase.