Effects of Soya Saponin on Immune Function of Laying Hens and Its Deposition Effect in Eggs
This study aimed to investigate the effects of soya saponin(SS)on immune function of laying hens,and to explore its deposition effect in eggs.A total of 270 twenty-one-week-old Hy-Line gray laying hens were randomly divided into 3 groups with 6 replicates in each group and 15 hens in each replicate.Birds in the control group(CTR group)were fed a basal diet,and others in 50 SS and 500 SS groups were fed the basal diets supplemented with 50 and 500 mg/kg SS,respectively.The trial lasted for 10 weeks.The results showed as follows:1)the serum β-defensin 1(β-DF1)content of 50 SS group was significantly higher than that of CTR group(P＜0.05).2)The gene expression levels of forkhead box protein 1(FOXO1)and interleukin-10(IL-10)in hypothalamus of 50 SS and 500 SS groups were significantly higher than those of CTR group(P＜0.05),and the gene expression levels of FOXO1,forkhead box protein 3(FOXO3)and IL-10 in spleen of 500 SS group were significantly higher than those of CTR group(P＜0.05).3)The blood hemoglobin(HGB)content of 500 SS group was significantly higher than that of CTR group(P＜0.05),and the blood mean corpuscular hemoglobin concentration(MCHC)of 50 SS group was significantly higher than that of CTR group(P＜0.05).4)The contents of soya saponin Ⅰ,soya saponin V,soya sapogenol A and soya sa-pogenol B in eggs of 500 SS group were significantly higher than those of CTR group(P＜0.05).In conclu-sion,dietary supplemented with 50 and 500 mg/kg SS can improve the immune function of laying hens.In ad-dition,dietary supplemented with 500 mg/kg SS can cause SS to deposit into eggs,and SS can be converted into soyasapogenol and deposited into eggs.[Chinese Journal of Animal Nutrition,2024,36(1):245-254]
万方数据
维普
