饲料工业2026，Vol.47Issue(12)：36-41,6.DOI:10.13302/j.cnki.fi.2026.12.005
互花米草提取物对白羽肉鸡免疫功能的影响
Effect of Spartina alterniflora Extract on Immune Function of White-Feather Broilers
摘要
Abstract
This experiment was conducted to study the effects of Spartina alterniflora extract on immune function of white feather broilers.A total of 288 1-day-old white-feathered male broilers were randomly divided into six groups with six replicates per group and eight chickens per replicate.The experiment lasted for 42 d.The experiment was divided into two stages:1-21 d old and 22-42 d old.Broilers in the blank con-trol group(CK group)were fed a basal diet.Broilers in the experimental groups were fed the basal diet supplemented with 500(S1 group),1 000(S2 group),1 500(S3 group)and 2 000 mg/kg(S4 group)Spartina alterniflora extract,respectively.Broilers in the positive control group(PC group)were fed the basal diet supplemented with 200 mg/kg chlortetracycline.Serum immune index,immune organ index,relative expres-sion of intestinal interleukin and tight junction pro-tein were measured,and single factor analysis of variance was performed.The results showed that at 21 d of age,the serum IgA contents of S2 group were significantly higher than those of CK,S4 and PC groups,the IgG content was significantly higher than that of S4 and PC groups,and the IFN-γ content of CK group was significantly higher than that of the other four groups except S1.At 42 d of age,serum IgM content in S3 group was significantly higher than that in S1 and PC groups,and IFN-γ content in CK and S1 groups was signifi-cantly higher than that in the other four groups.When the addition amount of Spartina alterniflora extract was 2 000 mg/kg,the thymus index was the highest,and the expression level of intestinal IL-10 mRNA was significantly higher than that of the control group.When the addition amount was 500 mg/kg,the expression of intestinal ZO-1 and Occludin protein was significantly higher than that of the control group.Collectively,Spartina alterniflora extract can enhance the immune function of white feather broilers.关键词
互花米草提取物/免疫功能/白羽肉鸡/细胞因子/紧密连接蛋白Key words
Spartina alterniflora extract/immune function/white-feather broiler/cytokines/tight junction proteins分类
农业科技引用本文复制引用
岳稳,缪伏荣,方桂友,林勤,林平冬,李忠荣,陈鑫珠,刘景..互花米草提取物对白羽肉鸡免疫功能的影响[J].饲料工业,2026,47(12):36-41,6.基金项目
福建省科技计划项目[2022R1026007] （）
福建省人民政府-中国农业科学院农业高质量发展超越"5511"协同创新工程项目[XTCXGC2021012] （）
