Effects of dietary oregano essential oil supplementation on growth performance, intestinal antioxidative capacity, immunity, and intestinal microbiota in yellow-feathered chickens

文献类型： 外文期刊

第一作者： Ruan, Dong

作者： Ruan, Dong;Fan, Qiuli;Fouad, Ahmed Mohamed;Sun, Yunyun;Lin, Chuxiao;Zhang, Chang;Jiang, Shouqun;Fouad, Ahmed Mohamed;Huang, Shengshu;Wu, Aiji;Kuang, Zhixiang

作者机构：

关键词： immunity; intestinal antioxidative capacity; ileal microbiota; oregano essential oil; yellow-feathered chickens

期刊名称：JOURNAL OF ANIMAL SCIENCE （ 影响因子：2.092； 五年影响因子：2.292 ）

ISSN： 0021-8812

年卷期： 2021 年 99 卷 2 期

页码：

收录情况： SCI

摘要： Essential oils are plant-derived aromatic volatile oils, and they contain bioactive compounds that have been shown to improve poultry nutrition. In this study, we investigated the effects of oregano essential oil (OEO) on intestinal antioxidative capacity, immunity, and gut microbiota of young yellow-feathered chickens. A total of nine hundred and sixty 1-d-old female Qingyuan partridge chickens were randomly allocated to four treatment groups with six replicates of 40 birds each, and the feeding trial was lasted for 30 d. The controls were fed on a basal diet without in-feed antibiotics; the birds in the antibiotic group were fed the basal diet supplemented with 20 mg/kg virginiamycin; the remaining birds were fed the basal diet containing 150 or 300 mg/kg OEO, respectively. Dietary supplementation with 150 or 300 mg/kg OEO increased average daily feed intake (P = 0.057) and average daily gain (P < 0.05). The activities of glutathione peroxidase and total antioxidative capacity in plasma, jejuna, and ileal mucosa were increased by OEO supplementation (P < 0.05), with a trend of lower jejunal content of malonaldehyde (P = 0.062). Moreover, dietary OEO increased the content of secretory immunoglobulin A (P = 0.078) and the relative expression of Claudin 1, Mucin 2, and Avain beta-defensin 1 in ileum (P < 0.05). Sequencing data of 16S rRNA indicated that dietary OEO increased the relative abundance of Firmicutes phylum, and Clostridium and Lactobacillus genera, and decreasing that of Romboutsia. Functional analyses indicated that microbial amino sugar and nucleotide sugar metabolism, replication, and repair systems were higher in OEO groups than those of controls and antibiotic treatment. In conclusion, dietary supplementation with OEO enhanced growth performance, alleviated local oxidative stress in intestine, improved production of natural antibodies, and favorably modulated intestinal microbiota composition.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序