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首页> 外文期刊>Applied Microbiology and Biotechnology >Pyrodextrin enhances intestinal function through changing the intestinal microbiota composition and metabolism in early weaned piglets
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Pyrodextrin enhances intestinal function through changing the intestinal microbiota composition and metabolism in early weaned piglets

机译：吡糊精通过改变早期断奶仔猪中的肠道微生物群组成和代谢来增强肠功能

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Pyrodextrin (PD) is prepared from starch by heat treatment and is resistant to amylase. We hypothesized that PD might have prebiotic potential affecting the microbiota composition, because it contains a non-digestible portion that may behave as dietary fiber. This study investigated the effects of PD supplementation on growth performance, gut morphology, short-chain fatty acids (SCFAs), and the bacterial community in weaned piglets receiving dietary supplementation of 0.5% PD. The piglets in the PD (treated) groups showed greater antioxidant capacity and feed efficiency (P < 0.05), as well as improved intestinal morphology in comparison with the piglets in the weaned (control) group. Gut microbiota profiles were assessed through 16S rRNA sequencing on the ileum contents and feces of early weaned piglets. Several genus-level enrichments and depletions were observed in response to PD treatment. Of note, PD supplementation decreased the relative abundance of pathogenic organisms, including Defluviicoccus and Gardnerella, while markedly increasing that of commensal bacteria (genera Psychrobacter and Prevotella), which have important roles in nutrient absorption and immune response regulation. The most notable effect in the PD treatment groups was increased production of SCFAs in the feces of PD-treated weaned piglets. Correlation analysis revealed that the improvement in SCFAs was positively correlated with the increase in SCFA-producing bacteria. Overall, this study provides a more comprehensive understanding of the effects of PD supplementation on the fecal microbial community and the modulation of SCFA production in early weaned piglets, thus indicating that PD can be used to alleviate weaning stress in piglets.
机译：通过热处理由淀粉制备吡糊精（Pd）并耐淀粉酶。我们假设Pd可能具有影响微生物群组合物的益生元潜力，因为它含有可能表现为膳食纤维的不可消化部分。本研究研究了PD补充对生长性能，肠道形态，短链脂肪酸（SCFA）的影响，以及接受膳食补充0.5％Pd的断奶仔猪中的细菌群体。 Pd（处理）基团中的仔猪显示出更高的抗氧化能力和饲料效率（P <0.05），以及改善的肠形态与断奶（对照）组中的仔猪相比。通过16S rRNA测序对早期断奶仔猪的含量和粪便进行评估肠道微生物瘤。响应于PD治疗观察了几种属级富集和耗尽。值得注意的是，PD补充减少了致病生物的相对丰富，包括Defluviicccus和Gardnerella，同时显着增加了共生细菌（属心理杆菌和PREVotella）的促进，这具有重要作用的营养吸收和免疫应答调节。 PD治疗组中最值得注意的效果在PD处理的断奶仔猪的粪便中增加了SCFA的生产。相关性分析显示，与SCFA产生细菌的增加，SCFA的改善呈正相关。总体而言，该研究提供了更全面的了解PD补充对粪便微生物群落的影响以及早期断奶仔猪在SCFA生产的调节，因此表明PD可用于缓解仔猪中的断奶应力。

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