畜牧与兽医2025，Vol.57Issue(4)：36-44,9.
日粮添加桉叶素对肉鸡生长性能、血清抗氧化指标及肠道健康的影响
Effect of dietary cineole supplementation on growth performance,serum antioxidant index and intestinal health in broilers
摘要
Abstract
The aim was to investigate the effects of dietary supplementation with different levels of cineole on growth performance,serum antioxidant index and intestinal health of broilers.A total of 144 healthy 1-day-old AA broilers were selected for the experiment and were randomly divided into 3 groups with 6 replicates of 8 birds each.The CON group was fed with the basal diet,whilethe CIN-L group and the CIN-H group had their basal diets supplemented with cineole at 500 and 1 000 mg/kg,respectively.The total experimental period was 42 d.The results showed that the average daily gain was significantly higher in the CIN-L and CIN-H groups compared with the CON group(P＜0.05),and the feed-to-weight ratio was significantly lower in the CIN-H group(P＜0.05).The propylene glycol content was significantly lower in the CIN-L and CIN-H groups than in the CON group(P＜0.05).The total antioxidant capacity and total superoxide dismutase ac-tivity were significantly higher in the CIN-L group than in the CON group(P＜0.05).However,there were no significant differences in duo-denal and jejunal villus heights,crypt depths,and villus heights/crypt depths between the CIN-H group and the CON group(P＞0.05).The height of ileal villi in the CIN-H group was significantly increased compared with that of the CON group(P＜0.05),and the depth of crypts in the CIN-L group was significantly lower than those in the CON group and the CIN-H group(P＜0.05).The crypt depth of the CIN-L group was significantly lower than those of the CON group and the CIN-H group(P＜0.05),and villus height/crypt depth was significantly higher than that of the CON group(P＜0.05).In addition,the expression levels of Occludin and ZO-1 mRNA in the duodenum of broiler chickens in CIN-H group were significantly lower than those in the CON group(P＜0.05).The expression levels of Claudin-1 and MUC2 mRNA in the jejunum of the CIN-H group were significantly lower than those of the CIN-L group(P＜0.05).The expression levels of MUC2 in the jejunum of the CIN-L group were significantly lower than those in the CIN-H group(P＜0.05).The MUC5AC mRNA expres-sion levels were significantly lower in the CIN-H group compared with those in the CON group(P＜0.05).The ileum of the CIN-H group had significantly lower MUC2 and MUC5B mRNA expression levels than those in the CON group(P＜0.05).In conclusion,the dietary sup-plementation of cineole improved the growth performance and antioxidant capacity of broiler chickens,as well as the morphology and barrier function of the intestinal tract.Under the conditions of this test,the optimal inclusion level of cineole was to be 500 mg/kg.关键词
桉叶素/肉鸡/生长性能/抗氧化能力/肠道健康Key words
cineole/broiler/growth performance/antioxidant capacity/intestinal health分类
农业科技引用本文复制引用
单雯涵,薛昱凡,贺文静,上官康,李圆,李春梅..日粮添加桉叶素对肉鸡生长性能、血清抗氧化指标及肠道健康的影响[J].畜牧与兽医,2025,57(4):36-44,9.基金项目
江苏省大学生创新创业训练计划项目(202310307196Y) （202310307196Y）
