中草药添加剂对蛋鸡生产性能的影响

Experiment was conducted to study the effect of Chinese traditional herbal medicines on the production performance of hens,96 hens were randomly devided into 4 groups and each group consisted of 6 cages with 4 laying hens per cage.3 prescriptions formed with Chinese traditional herbal medicines at the dosage of 1％、2％、3％were added respectively into the diets of the hens from group I to group Ⅲ for a 28d period,The control group was fed with basal diet．The daily performance index, namely the 1aying rate and egg weight per day were studied．The results indicated that the 1aying rate in groupⅠwere 6.48％ higher than that of the control group(P<0．01);the laying rate in group Ⅲ were 4.51％ higher than that of the control group (P<0．05);the day-egg production in group Ⅱ and in group Ⅲ were 5.26％and 2.26％significantly higher than that of the control group,respectively(p<0．01);the feed conversion rate of groupⅠwas 7.49％ sharply 1ess than that of control group(P<0．01);the feed conversion rate of group Ⅲ was 5.88％ less than that of control group(P<0．05).No significant difference in other index was observed among the treatments (P>0．05). In conclusion, prescriptionⅠformulated by Dangguibuxuesan at the dosage of 1％can obviously improve the performance of aged laying hens.