Effects of Lonicera hypoglauca extract on laying performance and egg quality of laying hens
The experiment aimed to explore the effects of different levels of Lonicera hypoglauca extract on the egg production performance and egg quality of Hy-Line Brown laying hens.A total of 4 000 healthy 60-week-old Hy-Line Brown laying hens were randomly divided into four groups,with 10 replicates per group,each consisting of 100 Hy-Line Brown laying hens.The control group was fed a basal diet,while the group 1,group 2,and group 3 were fed the basal diet supplemented with 0.25,0.50,1.00 g/kg of Lonicera hypoglauca extract,respectively.The preliminary trial lasted for one week,followed by an 8-week formal experimental period.The results showed that compared to the control group,the addition of 0.50,1.00 g/kg Lonicera hypoglauca extract in the diet significantly increased the average daily egg weight,egg production rate,and average egg weight of Hy-Line Brown laying hens(P<0.05),and significantly reduced the feed-to-egg ratio(P<0.05).Compared to the control group,the addition of 0.50,1.00 g/kg Lonicera hypoglauca extract in the diet significantly improved eggshell strength,Haugh units,and the relative weight of the yolk(P<0.05).Compared to the control group,the addition of 0.50,1.00 g/kg Lonicera hypoglauca extract in the diet significantly reduced the cholesterol content in the yolk(P<0.05).The study indicates that the addition of an appropriate amount of Lonicera hypoglauca extract to the diet of Hy-Line Brown laying hens can improve laying performance and egg quality,and the optimal level of Lonicera hypoglauca extract addition is 0.5 g/kg.
Lonicera hypoglauca extractLaying performanceEgg qualityHy-Line Brown laying hens
万方数据
维普
