动物营养学报2025，Vol.37Issue(3)：1673-1686,14.DOI:10.12418/CJAN2025.142
饲粮中添加薏苡米糠对蛋鸡生产性能、肠道健康和免疫功能的影响
Effects of Dietary Coix Rice Bran on Performance,Intestine Health and Immune Function of Laying Hens
摘要
Abstract
This study was conducted to investigate the effects of dietary coix rice bran on performance,intes-tine health and immune function of laying hens.A total of 216 healthy 35-week-old Hy-Line brown laying hens with similar laying rate and body weight were randomly divided into 3 groups with 6 replicates per group and 12 hens per replicate.The hens in the control group were fed a corn-soybean meal type basal diet,and the oth-ers in the experimental groups were fed the basal diet supplemented with 2.5%and 5.0%coix rice bran,re-spectively.The pre-trial period was 1 week and the experimental period was 12 weeks.The results showed as follows:1)compared with the control group,dietary 2.5%coix rice bran significantly increased the laying rate of laying hens at all stages(P＜0.05),and dietary 5.0%coix rice bran significantly decreased the average dai-ly feed intake from weeks 1 to 4 and 1 to 12(P＜0.05).2)Dietary coix rice bran had no significant effects on egg quality of laying hens(P＞0.05).3)Compared with the control group,dietary 2.5%coix rice bran signif-icantly increased the contents of total protein,globulin and high-density lipoprotein cholesterol in serum of lay-ing hens(P＜0.05),and significantly decreased the low-density lipoprotein cholesterol content in serum(P＜0.05).4)Compared with the control group,dietary 2.5%and 5.0%coix rice bran significantly increased the villus height in ileum of laying hens(P＜0.05);at the same time,the villus height in ileum in 2.5%coix rice bran supplemental group was significantly higher than that in 5.0%coix rice bran supplemental group(P＜0.05).5)Compared with the control group,dietary 2.5%and 5.0%coix rice bran significantly decreased the tumor necrosis factor-α(TNF-α)content in serum of laying hens(P＜0.05),but had no significant effects on thymus index,spleen index and bursa of Fabricius index(P＞0.05).6)Compared with the control group,di-etary 2.5%and 5.0%coix rice bran significantly decreased the mRNA relative expression levels of induced ni-tric oxide synthase(iNOS)and interleukin-1β(IL-1β)in liver of laying hens(P＜0.05),dietary 2.5%coix rice bran significantly increased the interleukin-10(IL-10)mRNA relative expression level in liver(P＜0.05),and dietary 5.0%coix rice bran significantly decreased the TNF-α mRNA relative expression level in liver(P＜0.05).In conclusion,dietary 2.5%coix rice bran can increase the laying rate,improve the ileal morphology and lipid metabolism,and enhance immune function of laying hens.[Chinese Journal of Animal Nutrition,2025,37(3):1673-1686]关键词
薏苡米糠/蛋鸡/生产性能/肠道健康/免疫功能Key words
coix rice bran/laying hens/performance/intestine health/immune function分类
农业科技引用本文复制引用
张龙飞,李建伟,李俊,黎恒铭,刘天涛,陈鹏,全贵阳,武书庚..饲粮中添加薏苡米糠对蛋鸡生产性能、肠道健康和免疫功能的影响[J].动物营养学报,2025,37(3):1673-1686,14.基金项目
北京市家禽创新团队(BAIC06-2024) （BAIC06-2024）
国家自然科学基金项目(32272907) （32272907）
中国农业科学院农业科技创新工程(ASTIP) （ASTIP）
