饲料研究2026，Vol.49Issue(4)：34-40,7.DOI:10.13557/j.cnki.issn1002-2813.2026.04.007
褐藻寡糖对樱桃谷鸭生长性能、脂质代谢基因表达量和肠道免疫功能的影响
Effects of alginate oligosaccharide on growth performance,expression level of lipid metabolism genes,and intestinal immune function in Cherry Valley ducks
摘要
Abstract
This experiment aimed to investigate the effects of dietary supplemented with alginate oligosaccharide(AOS)on the growth performance,expression level of lipid metabolism genes,and intestinal immune function in Cherry Valley ducks.A total of 480 healthy one-day-old Cherry Valley ducks were randomly divided into four groups,with six replicates per group and 20 ducks per replicate.The control group fed a basal diet,while the experimental groups were fed the basal diet supplemented with 100,200,and 400 mg/kg AOS,respectively.The trial period lasted for 42 days.The results showed that compared with the control group,the final weight of Cherry Valley ducks in the 200 and 400 mg/kg groups was significantly increased(P<0.05),and the average daily gain(ADG)in the 400 mg/kg group was significantly increased(P<0.05).Compared with the control group,on the 42nd day,the serum total cholesterol(TC)content in the 100,200,and 400 mg/kg groups was significantly reduced(P<0.05),and the high-density lipoprotein cholesterol(HDL-C)content in the 200 and 400 mg/kg groups was significantly reduced(P<0.05).Compared with the control group,on the 42nd day,the relative mRNA expression levels of fatty acid binding protein(FABP),peroxisome proliferator-activated receptor α(PPAR-α),fatty acid synthase(FASN)and cholesterol 7α-hydroxylase(CYP7A1)in the liver tissues of the 200 and 400 mg/kg groups were significantly increased(P<0.05),and the relative mRNA expression levels of sterol regulatory element-binding protein 1c(SREBP-1c)in the 100 and 200 mg/kg groups was significantly increased(P<0.05).Compared with the control group,on the 42nd day,the concentrations of secretory immunoglobulin A(SIgA)and immunoglobulin Y(IgY)in the ileal mucosa of the 200 and 400 mg/kg groups were significantly increased(P<0.05),and the relative mRNA expression levels of interleukin-10(IL-10),Occludin and zonula occludens-1(ZO-1)were significantly increased(P<0.05),while the relative mRNA expression level of interleukin-2(IL-2)was significantly decreased(P<0.05).The study shows that dietary supplemented with 200 mg/kg AOS improves the growth performance,regulates expression level of lipid metabolism genes in hepatic,and enhances intestinal immune function of Cherry Valley ducks.关键词
褐藻寡糖/樱桃谷鸭/生长性能/脂质代谢/免疫功能Key words
alginate oligosaccharide/Cherry Valley ducks/growth performance/lipid metabolism/immune function分类
农业科技引用本文复制引用
于湘,刘砚涵,辛国省,孙黎明,韩艳,杨景晁..褐藻寡糖对樱桃谷鸭生长性能、脂质代谢基因表达量和肠道免疫功能的影响[J].饲料研究,2026,49(4):34-40,7.基金项目
山东省重点研发计划(农业良种工程)项目(项目编号:2024LZGC020) （农业良种工程）
山东省重点研发计划项目(项目编号:2022LZGCO14) （项目编号:2022LZGCO14）
