【摘要】 42周龄伊莎褐色蛋鸡2000只,随机分成4组,饲料中分别添加0．00%、0．03%、0．05%、0。07%的和美酵素进行饲喂试验。结果表明,添加和美酵素组的产蛋率显著高于对照组(P<0．05),添加量以0．03%经济效益最佳。更多还原

【Abstract】 2000 42th-week-old ISA Brown hens were randomly divided into 4 groups. The diet was supplemented with 0,0.03% ,0.05% and 0.07% hemicell. llie result showed that the laying rate of the groups added hemicell were higher t|han the control group (p < 0.05) .It could get best economic benefits when diet added 0.03% hemicell.更多还原