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试验旨在研究低聚木糖（xylo-oligosaccharides,XOS）对断奶仔猪生长性能、血清生化指标和肠道菌群的影响。选取80头28日龄体重为（8.91±1.62） kg的断奶仔猪，随机分为2组，对照组（CON组）饲喂玉米-豆粕型基础饲粮，试验组（XOS组）饲喂基础饲粮添加500 mg/kg XOS。每组5个重复，每个重复8头猪，试验包括前期（1～14 d）和后期（15～28 d）两个阶段。结果表明：(1)与CON组相比，饲粮中添加XOS可显著提高15～28、1～28 d仔猪平均日增重（P<0.05），显著降低1～14 d仔猪腹泻率（P<0.05）。(2)与CON相比，XOS组仔猪血清免疫球蛋白A、免疫球蛋白G、免疫球蛋白M、白细胞介素-1β水平显著增加（P<0.05），白细胞介素-6水平显著降低（P<0.05），超氧化物歧化酶（SOD）活性显著升高（P<0.05）。(3)饲粮中添加XOS可显著降低仔猪有害菌Rothia和Streptococcus相对丰度（P<0.05）。综上所述，XOS可调节仔猪肠道微生物，改善免疫性能和抗氧化功能，且这些作用有益于仔猪生长性能。
Abstract：This study aimed to investigate the effects of xylo-oligosaccharides(XOS) on growth performance, serum biochemical indicators and intestinal microbiota of weaned piglets. 80 weaned piglets with a weight of(8.91±1.62) kg at 28 days old were selected and randomly divided into 2 treatments, the control group received a corn soybean meal basal diet(CON), while the experimental group(XOS) received 500 mg/kg XOS added to the basal diet. In this experiment, each treatment was processed with 5 repetitions of 8 pigs each, and the period consisted of the early phase(1-14 d) and the late phase(15-28 d). The results showed as follows:(1) XOS increased average daily gain during 15-28 d and 1-28 d(P<0.05), and XOS decreased diarrhea rates during 1-14 d(P<0.05).(2) Compared with CON, the levels of serum immunoglobulin A, immunoglobulin G, immunoglobulin M and interleukin-1β in XOS group piglets significantly increased(P<0.05), while the levels of interleukin-6 significantly decreased(P<0.05), and the superoxide dismutase activities significantly increased(P<0.05).(3) XOS could significantly reduce the relative abundance of potential pathogenic bacteria Rothia and Streptococcus(P<0.05). In summary, XOS could regulate gut microbiota of piglets, improve immune performance and antioxidant function, and these effects can be beneficial for improving piglet growth performance.
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基本信息:
DOI：10.13302/j.cnki.fi.2025.21.002
中图分类号:S828.5
引用信息:
[1]王剑,刘苏捷.低聚木糖对断奶仔猪生长性能、血清生化指标和肠道菌群的影响[J].饲料工业,2025,46(21):11-17.DOI:10.13302/j.cnki.fi.2025.21.002.
基金信息:
国家自然科学基金青年科学基金项目[32302789]; 中国博士后科学基金面上资助项目[2023M733803]