动物营养学报2017，Vol.29Issue(3)：1030-1038,9.DOI:10.3969/j.issn.1006-267x.2017.03.037
饲粮添加酵母寡聚糖对高密度养殖条件下蛋鸡生产性能、蛋品质、血清生化指标和肠道健康的影响
Effects of Dietary Yeast Oligosaccharides Supplementation on Performance, Egg Quality, Serum Biochemical Indices and Intestine Health of Laying Hens under High Density Cultivation
摘要
Abstract
This trial was conducted to investigate the effects of dietary yeast oligosaccharides (YOS) supplementation on performance,egg quality,intestinal mucosal morphology and microflora distribution,serum biochemical indices and intestinal function related gene expression of laying hens under high density cultivation.A total of 864 twelve-week-old Hy-Line Brown hens were randomly allocated to 6 groups with 12 replicates per group,and each replicate with 3 cages and 3 (low density) or 5 (high density) birds per cage.Hens in control group were fed a basal diet,while in the other two experimental groups were fed the same basal diet supplemented with 250 and 500 g/t YOS,respectively.The experiment lasted for 18 weeks.The results showed as follows:1) dietary YOS supplementation significantly enhanced the uniformity of eggshell color (P＜0.05).2) Dietary YOS supplementation increased the ratio of villus height to crypt depth of intestinal mucosal of hens (P=0.059),which in 250 g/t YOS group was significantly higher than that in control group (P＜0.05).3) Lactobacillus population in jejunum of hens was significantly increased (P＜0.05),whereas Escherichia coli population was significantly decreased (P＜0.05) by dietary YOS supplementation and 250 g/t level got a better effect.4) Dietary YOS supplementation significantly decreased serum endotoxin content (P＜0.05),increased serum immunoglobulin A content (P =0.090) especially in 250 g/t YOS group,which was significantly higher than that in control group (P＜0.05).The results indicate that dietary YOS supplementation,more particularly the 250 g/t dosage,can increase the intestinal function of laying hens subjected to high-density.关键词
酵母寡聚糖/蛋鸡/生产性能/蛋品质/血清生化指标/肠道健康Key words
yeast oligosaccharides/laying hens/performance/egg quality/serum biochemical indices/intestinal health分类
农业科技引用本文复制引用
王玉,李恩凯,孟彦淼,丁祥文,杨家昶,胡希怡,张博,宋志刚..饲粮添加酵母寡聚糖对高密度养殖条件下蛋鸡生产性能、蛋品质、血清生化指标和肠道健康的影响[J].动物营养学报,2017,29(3):1030-1038,9.基金项目
山东省现代农业产业技术体系家禽创新团队项目(STAIT-13-011-08) （STAIT-13-011-08）
