Effects of Chinese Herbal Feed Additives Qinjianbao on the Production Performance and Health Care in Laying Hens

2630 51-week-old Lohmann laying hens were randomly divided into Qinjianbao Additives group,Olaquindox group and control group.The trial period was 60 days.Qinjianbao and Olaquindox group were added 4 g/kg,35 mg/kg respectively in the Basic diet,the control group were not adding any drugs.The results showed that egg production rate were increased by 1% and 3.9% respectively in Qinjianbao and control group compared with Olaquindox group,death rates of hens in Olaquindox group and the control group were 0.11% and 0.91% respectively,higher than those in Qinjianbao group.Comparing Olaquindox and control group with Olaquindox group,feed to egg ratios were increased by 1.65% and 7.72% respectively,indicating that Chinese herbal feed additives Qinjianbao could not only improve the rate of egg laying and feed conversion efficiency,but also prevent disease in laying hens.