Effects of low-temperature degreased Camellia oleifera seed kernel powder on performance,egg quality and serum biochemical indices of laying hens
This experiment aimed to study the effects of low-temperature degreased Camellia oleifera seed kernel powder on the production performance,egg quality and serum biochemical indicators of laying hens.A total of 450 Hy-land grey laying hens with similar laying rate[(88.53±0.73)%]during the late laying period(70 weeks of age)were randomly divided into 3 groups with 6 replicates per group and 25 hens per replicate.Hens in the control group were fed a basal diet,and those in experimental groups were fed the basal diet supplemented with 500 mg/kg low-temperature defatted Camellia oleifera seed kernel powder(Camellia oleifera seed kernel powder group)or saccharicterpenin type I feed additive(saccharicterpenin group),respectively.The pre-feeding period was 7 days and the formal period was 56 days.The results showed as follows:(1)Compared with control group and saccharicterpenin group,the laying rate of laying hens in Camellia oleifera seed kernel powder group was increased by 3.14% and 4.06% respectively(P<0.05),and the feed to egg ratio was the lowest.(2)Compared with the control group,the albumen height and Haugh unit of eggs in Camellia oleifera seed kernel powder group were increased by 12.98% and 9.66%,respectively(P<0.05),and these two indicators in saccharicterpenin group were increased by 13.98% and 9.40%,respectively(P<0.05).(3)Compared with control group,the serum alanine aminotransferase content of laying hens in Camellia oleifera seed kernel powder group and saccharicterpenin group was decreased by 32.00% and 42.85%,respectively(P<0.05),and the serum alkaline phosphatase content of laying hens in Camellia oleifera seed kernel powder group was decreased by 21.59% (P<0.05).In conclusion,dietary low-temperature degreased Camellia oleifera seed kernel powder could improve the production performance and egg quality of laying hens,and improve their liver metabolic function.
万方数据
维普
