【作者】 李艳芝； 李茜； 侯海锋； 王彦超； 史万玉； 钟秀会； 郑长山；

【Author】 LI Yanzhi~1,LI Qian~2,WANG Yanchao~1,HOU Haifneg~3,SHI Wanyu~1,ZHONG Xiuhui~1 (1.College of Animal Science and Technology,Agricultural University of Hebei,Baoding,071001. 2.Hebei Animal Science and Veterinary Medicine Research Institute,Hebei,Baoding,071000. 3.Department of Husbandry and Veterinary,Baoding Vocational and Technical College,Hebei,Baoding,071051.)

【机构】 河北农业大学动物科技学院； 河北省畜牧兽医研究所； 保定职业技术学院畜牧兽医系；

【摘要】 本试验将45周龄体况一致的健康海兰灰蛋鸡400只,随机分为5个组,每组4个重复.对熙组饲喂基础日粮,1-4组为试验组,分别在基础日粮中添加0.5%、1%、1.5%、2%的构树叶.结果表明,在蛋鸡日粮中添加不同水平的构树叶均可增加蛋重,以2%添加组效果最佳(P<0.05),各试验对产蛋率有一定的改善,而对采食量和料蛋比无显著性影响(P<0.05);1.5%添加组的蛋黄颜色、蛋壳相对重、蛋壳厚度均显著优于对照组(P<0.05).提示日粮中添加1.5%-2%的构树叶即可保证蛋鸡良好的生产性能及蛋品质.更多还原

【Abstract】 Four hundred Hy-Line layers aged 45 weeks were randomly divided into five groups.Each group was assigned 4 replicates.The contrast group was fed with basal diet,Ⅰ,Ⅱ,Ⅲ,Ⅳgroup were fed with the basic diets containing 0.5%、1%、1.5%、2%leaves of Broussonetia papyrifera.The Results showed that each group with different levels of leaves could increase the egg weight,2%was the best one(P<0.05).Each treatment group could improve egg- laying rate,but it had no significant effect on feed intake and feed egg ratio(P>0.05).Yolk color,eggshell relative weight,eggshell thickness of 1.5%was significantly better than the control group(P<0.05).It is concluded that adding 1.5%-2%leaves of Broussonetia papyrifera to a normal diet of laying hens could be guaranteed a good performance and egg quality.更多还原