摘要
文章旨在研究不同添加量下番茄红素对青壳 4 号蛋鸭生产性能和蛋品质的影响.试验将 360 只 280 日龄、产蛋期接近、机体健康且采食量正常的青壳 4 号蛋鸭随机分为 6 组,每组 4 个重复,每个重复 15 只蛋鸭.预饲期 7d,正试期 42 d.对照组仅饲喂基础日粮,不添加番茄红素.试验组(Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ组)在基础日粮中分别添加了 100、200、300、400、800 mg/kg的番茄红素.试验结果:各组间蛋鸭采食量差异不显著(P＞0.05);日粮中添加不同含量的番茄红素可显著提高蛋鸭的产蛋率、蛋重、料蛋比(P＜0.05);但试验组间各指标差异不显著(P＞0.05).各组间蛋壳强度与蛋壳厚度差异不显著(P＞0.05);试验组Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ间蛋黄颜色分别提高 1.69、2.06、1.95、1.44、2.14(P＜0.05),但试验组间的蛋黄颜色差异不显著(P＞0.05);试验组哈夫单位、蛋白高度、蛋形指数测定值均显著优于对照组(P＜0.05);但试验组间无显著差异(P＞0.05).试验结论:日粮中添加番茄红素可显著提高蛋鸭的生产性能和鸭蛋蛋品质,本试验适宜添加量为 100 mg/kg.
Abstract
To study the influences of lycopene on the production performance and egg quality of laying ducks under different additive amounts.A total of 360 280-day-old Qingke Ⅳ laying ducks,with good health conditions,normal feed intakes,and similar laying periods,were selected,randomly divided into 6 groups.Each group had 4 replicates,and each replicate 15 ducks.The pre-experiment period was 7 days and the formal experiment period 42.The control group was fed only a basal diet with no lycopene.The experimental groups(Ⅰ,Ⅱ,Ⅲ,Ⅳ,Ⅴ)were fed a basal diet supplemented with 100,200,300,400 and 800 mg/kg lycopene,respectively.(Experimental Result)There was no significant difference in feed intakes between the control group and the experimental groups,or between the experimental groups(P＞0.05).The addition of lycopene to the basal diet significantly increased the laying rate,egg weight ratio and feed-egg ratio of laying ducks(P＜0.05).There was no significant difference in strength and thickness of eggshells between the control group and the experimental groups,or between the experimental groups(P＞0.05).The colors of egg yolk in experimental groups Ⅰ,Ⅱ,Ⅲ,Ⅳ and Ⅴ improved by 1.69,2.06,1.95,1.44 and 2.14,respectively(P＜0.05),but there was no significant difference in egg yolk colors between experimental groups(P＞0.05).The measured values of Huff Unit,Albumen Height,and egg shape index of the experimental groups were significantly superior to those of the control group(P＜0.05),but there was no significant difference between the experimental groups(P＞0.05).Conclusion:The addition of lycopene to the basal diet could significantly improve the production performance and egg quality of laying ducks,and the appropriate dosage,as for this experiment,was 100 mg/kg.
维普
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