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首页> 美国卫生研究院文献>other >Astragalus and Ginseng Polysaccharides Improve Developmental Intestinal Morphological and Immune Functional Characters of Weaned Piglets
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Astragalus and Ginseng Polysaccharides Improve Developmental Intestinal Morphological and Immune Functional Characters of Weaned Piglets

机译：黄芪和人参多糖可改善断奶仔猪的发育肠道形态和免疫功能

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Antibiotic resistance is a major issue in animal industries and antibiotic-free alternatives are needed to treat infectious diseases and improve performance of pigs. Plant extracts have been suggested as a potential solution. The present study was conducted to investigate the effects of Astragalus polysaccharides (Aps) and ginseng polysaccharide (Gps) on growth performance, intestinal morphology, immune function, volatile fatty acids (VFAs), and microfloral community in weaned piglets. A total of 180 weaned piglets were randomly divided into three treatment groups during a 28-days feeding experiment, including a basal diet (Con), basal diet supplemented with 800 mg/kg Aps (Aps), and basal diet supplemented with 800 mg/kg Gps (Gps). Results showed that both Aps and Gps increased body weight, average daily gain and feed conversion rate, and reduced the rate of diarrhea. Gps also decreased aspartate aminotransferase compared to the Con piglets after 14 days. No significant effects on alanine aminotransferase were observed. Both Aps and Gps piglets exhibited higher serum immunoglobulin M levels after 14 and 28 days, and also decreased jejunal crypt depth, increased jejunal villus length and villus height/crypt depth ratio, and increased expression of toll-like receptor 4, myeloid differentiation primary response 88, nuclear factor-kappa B proteins in the jejunum. Aps and Gps piglets also had higher concentrations of acetic acid, isobutyric acid, and butyrate in their colon. Data of high-throughput sequencing revealed that Aps and Gps affected bacterial quantity and diversity in the colon. Species richness and evenness were higher in both Aps and Gps piglets than the control piglets. Aps and Gps piglets also had a higher relative abundance of Lachnospiraceae and Anaerostipes, and the Aps piglets had a higher relative abundance of Lactobacillus gasseri and L. amylovorus. Therefore, dietary supplementation with Aps and Gps could be beneficial for optimizing the performance of industry pigs and reducing dependence on antibiotics. Furthermore, Plant polysaccharides play a great role in promoting the sustainable development of animal husbandry.
机译：抗生素抗性是畜牧业的一个主要问题，需要无抗生素的替代品来治疗传染病和改善猪的生长性能。已经建议将植物提取物作为潜在的解决方案。本研究旨在研究黄芪多糖（Aps）和人参多糖（Gps）对断奶仔猪生长性能，肠道形态，免疫功能，挥发性脂肪酸（VFA）和微生物群落的影响。在28天的喂养实验中，将总共180只断奶仔猪随机分为三个治疗组，包括基础饮食（Con），补充800 mg / kg Aps（Aps）的基础饮食和补充800 mg / kg的基础饮食千克Gps（Gps）。结果表明，Aps和Gps均可增加体重，平均日增重和饲料转化率，并降低腹泻率。与Con仔猪相比，Gps在14天后还降低了天冬氨酸转氨酶。没有观察到对丙氨酸氨基转移酶的显着影响。 Aps和Gps仔猪在14天和28天后均表现出较高的血清免疫球蛋白M水平，并且空肠隐窝深度降低，空肠绒毛长度和绒毛高度/隐窝深度比增加，以及Toll样受体4的表达增加，骨髓分化主要反应88，空肠中的核因子-κB蛋白。 Aps和Gps仔猪的结肠中也含有较高浓度的乙酸，异丁酸和丁酸。高通量测序的数据表明，Aps和Gps影响了结肠中细菌的数量和多样性。 Aps和Gps仔猪的物种丰富度和均匀度均高于对照仔猪。 Aps和Gps仔猪的乳酸链球菌和厌氧菌也相对较高，而Aps仔猪的乳酸杆菌和淀粉乳杆菌的相对含量较高。因此，日粮中添加Aps和Gps可能有利于优化工业猪的性能并减少对抗生素的依赖。此外，植物多糖在促进畜牧业的可持续发展方面发挥着重要作用。

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