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Dietary Stevia Residue Extract Supplementation Improves Antioxidant Capacity and Intestinal Microbial Composition of Weaned Piglets

文献类型： 外文期刊

作者： Liu, Shuai 1 ; Xiong, Yunxia 1 ; Cao, Shuting 1 ; Wen, Xiaolu 1 ; Xiao, Hao 1 ; Li, Yajing 2 ; Chi, Lei 2 ; He, Dongsheng 2 ; Jiang, Zongyong 1 ; Wang, Li 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Inst Anim Sci,Guangdong Key Lab Anim Breeding & N, Maoming Branch,Key Lab Anim Nutr & Feed Sci South, State Key Lab Livestock & Poultry Breeding,Minist, Guangzhou 510640, Peoples R China

2.Zhucheng Haotian Pharmaceut Co Ltd, Zhucheng 262218, Peoples R China

关键词： stevia residue extract; antioxidant; gut microbiota; weaned piglets

期刊名称：ANTIOXIDANTS （ 影响因子：7.675； 五年影响因子：7.886 ）

ISSN：

年卷期： 2022 年 11 卷 10 期

页码：

收录情况： SCI

摘要： This study aimed to investigate the effects of diet supplementation with stevia residue extract (SRE) on growth performance, intestinal health, and antioxidant capacity of weaned piglets. A total of 144 weaned piglets (body weight 6.8 +/- 0.5 kg) were randomly selected and allocated into four treatment groups with six replicates of six pigs/pen. The treatments consisted of a basal diet without SRE or basal diet supplemented with 100, 200, or 400 mg/kg SRE. The results showed that the addition of 200 mg/kg SRE to the diet significantly reduced (p < 0.05) the diarrhea rate of piglets compared with the control group. The supplementation of 400 mg/kg SRE in the diet significantly reduced the piglets' serum MDA content and significantly increased (p < 0.05) the T-AOC, T-SOD, and GSH-PX activity in the serum. The dietary supplementation with 400 mg/kg SRE significantly increased (p < 0.05) the CAT and GSH-PX activity in the liver. Moreover, the supplementation of 400 mg/kg SRE in the diet significantly increased (p < 0.05) the relative abundance of Prevotellaceae (genus) and Roseburia (genus) beneficial bacteria compared to the control group. Spearman's correlation analysis showed that Prevotella (genus) abundance was positively correlated with liver GSH-PX activity and acetic acid content of colon contents. In conclusion, the supplementation of 400 mg/kg SRE to the diet can improve piglet health by regulating antioxidant reduction homeostasis, which may also be associated with an increase in the relative numbers of potentially beneficial bacteria.

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