文献类型： 外文期刊

作者： Wang, Yuanyuan ¹ ; Wang, Baikui ¹ ; Zhan, Xiuan ¹ ; Wang, Yibing ² ; Li, Weifen ¹ ;

作者机构： 1.Zhejiang Univ, Inst Feed Sci, Coll Anim Sci, Key Lab Mol Anim Nutr Minist Educ, Hangzhou 310058, Peoples R China

2.Guangdong Acad Agr Sci, Inst Anim Sci, State Key Lab Livestock & Poultry Breeding, Key Lab Anim Nutr & Feed Sci South China, Guangzhou 510640, Peoples R China

3.Zhejiang Univ, Feed Sci Inst, Coll Anim Sci, 866 Yuhangtang Rd, Hangzhou 310058, Zhejiang, Peoples R China

关键词： Antioxidant capacity; Cytokines; Enzyme; Immune function; Probiotics

期刊名称：ANIMAL （ 影响因子：3.73； 五年影响因子：3.908 ）

ISSN： 1751-7311

年卷期： 2022 年 16 卷 3 期

页码：

收录情况： SCI

摘要： Glucose oxidase (GOD) is an aerobic dehydrogenase, which catalyses the oxidation of b-D-glucose to gluconic acid and hydrogen peroxide. This study aimed to investigate the effects of dietary glucose oxidase and its combined effects with Bacillus amyloliquefaciens SC06 (BaSC06) on the intestinal microbiota, immune function and antioxidant capacity of broilers. One-day-old male Lingnan yellow-feathered broilers (n = 720) were randomly assigned to four treatment groups: Control group (basal diet), Anti group (basal diet supplemented with 200 mg/kg enramycin), GOD group (basal diet supplemented with 75 U/ kg GOD), and combination of GOD and BaSC06 (GB) group (GOD diet (75 U/kg) supplemented with 1 x 10(8) colony-forming units BaSC06/kg feed), with six replicates per group and 30 birds per replicate. The experiment was conducted over 52 days. The results indicated a significant decrease in a-diversity (Observed species, Chao1, PD_whole_tree and Shannon) with GOD treatment, compared with the control group. GB treatment also significantly decreased the Shannon index of cecal microbiota. GOD treatment significantly decreased the a-diversity, whereas GB treatment significantly increased these indices except for the Chao1 index, compared with the Anti group. Compared with the control group, the relative abundance of Bacteroides in the GOD and GB groups was significantly increased, whereas a decrease in Firmicutes was observed. Compared with the Anti group, GOD treatment significantly increased the relative abundances of Bacteroides and Lactobacillales, while GB treatment significantly increased Lactobacillales and decreased Proteobacteria levels. In addition, GOD treatment significantly decreased interleukin-10 and interferon -7 levels, compared with the control group. In contrast, GB treatment significantly downregulated interferon -7 levels and upregulated secretory immunoglobulin A, transforming growth factor -beta and interleukin-2 expression in the jejunal mucosa. GOD treatment significantly decreased transforming growth factor -b and interleukin-10 levels, whereas GB treatment markedly increased interferon -7 expression in the jejunal mucosa compared with the Anti group. Furthermore, GB treatment significantly increased the total antioxidant capability levels and the total superoxide dismutase (T-SOD) and catalase (CAT) activities compared with the control group. Meanwhile, GOD treatment significantly increased glutathione peroxidase (GSH-Px) activity in the jejunal mucosa. Total superoxide dismutase, GSH-Px and CAT activities in the Anti group were higher than in the GOD and GB groups. The malondialdehyde levels in the control group were the highest among all groups. In conclusion, our results indicated that supplementation with GOD alone and its combination with BaSC06 in diet could increase antioxidant capacity, immune function and improve the intestinal microbiota composition of broilers. Combination treatment with GOD with BaSC06 exerted stronger effects than GOD treatment only. (C)& nbsp;2022 The Authors. Published by Elsevier B.V. on behalf of The Animal Consortium.& nbsp;