Effects of Dry Powder of Dendrobium officinale Leaf on Production Performance,Egg Quality,Serum Biochemical Indexes,Hormone Level and Organ Index of Jinghong No.1 Laying Hens
In order to investigate the effect of Dendrobium officinale leaf on laying hens'production per-formance,egg quality,organ index and serum biochemical index,240 healthy 19-week-old Jinghong No.1 laying hens were randomly divided into three treatment groups:control group,1 200 mg/kg Dendrobium of ficinale leaf group,and 3 600 mg/kg Dendrobium officinale leaf group.The experimental period was 16 weeks.The results showed that compared with the control group,the addition of Dendrobium leaf dry powder to the diet had no significant effect on the egg production rate,average egg weight and feed-to-egg ratio of Jinghong No.1 laying hen,indicating that Dendrobium officinale leaves did not affect the egg-lay-ing performance of layer chickens;3 600 mg/kg Dendrobium officinale leaf could significantly reduce the daily average feed intake aged at 31～34 weeks and egg damage rate of laying hens aged 27 to 34 weeks,and significantly increase the yolk color,serum total protein level and globulin level of laying hens aged 19～22 weeks;1 200 mg/kg Dendrobium officinale leaves could significantly reduce the daily average feed in-take of laying hens aged 31～34 weeks,the egg damage rate of laying hens aged 31～34 weeks,and signifi-cantly increase the yolk color and yolk ratio of laying hens aged 27～30 weeks and the Haugh unit of laying hens aged 31～34 weeks.Compared with the other two groups,3 600 mg/kg Dendrobium officinale leaves significantly increased the spleen index.The results show that the dry powder of Dendrobium officinale leaves does not affect the laying performance of laying hens,however it could improve the egg quality and immune ability.
万方数据
维普
