畜牧兽医学报 ›› 2025, Vol. 56 ›› Issue (8): 3908-3921.doi: 10.11843/j.issn.0366-6964.2025.08.029

• 营养与饲料 • 上一篇    下一篇

氨基葡萄糖对断奶仔猪血清抗氧化、炎症指标以及肠道微生物的影响

孟亚轩1,2,3(), 刘彦2,3, 王晶2,3, 陈国顺1,*(), 冯涛1,2,3,*()   

  1. 1. 甘肃农业大学动物科学技术学院, 兰州 730070
    2. 北京市农林科学院畜牧兽医研究所, 北京 100097
    3. 北京市农林科学院-美国俄克拉荷马州立大学动物科学联合实验室, 北京 100097
  • 收稿日期:2024-09-19 出版日期:2025-08-23 发布日期:2025-08-28
  • 通讯作者: 陈国顺,冯涛 E-mail:18793606358@163.com;chengs@gsau.edu.cn;fengtao@baafs.net.cn
  • 作者简介:孟亚轩(2000-),女,甘肃金昌人,硕士生,主要从事家畜生产营养调控研究,E-mail:18793606358@163.com
  • 基金资助:
    国家自然科学基金(31972575);兰州市人才创新创业项目专项—数字化无抗甘味畜产品生产技术成果应用与推广(23-3-110)

Effects of Glucosamine on Serum Anti-oxidation, Inflammatory Indexes and Intestinal Microbes in Weaned Piglets

MENG Yaxuan1,2,3(), LIU Yan2,3, WANG Jing2,3, CHEN Guoshun1,*(), FENG Tao1,2,3,*()   

  1. 1. College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
    2. Institute of Animal Husbandry and Veterinary Medicine (IAHVM), Beijing Academy of Agriculture and Forestry Sciences (BAAFS), Beijing 100097, China
    3. Joint Laboratory of Animal Science between IAHVM of BAAFS and Division of Agricultural Science and Natural Resource of Oklahoma State University, Beijing 100097, China
  • Received:2024-09-19 Online:2025-08-23 Published:2025-08-28
  • Contact: CHEN Guoshun, FENG Tao E-mail:18793606358@163.com;chengs@gsau.edu.cn;fengtao@baafs.net.cn

摘要:

旨在研究氨基葡萄糖(glucosamine,GlcN)对断奶仔猪血清抗氧化、炎症指标以及肠道微生物的影响。试验选取250头体重相近21日龄的健康“杜×长×大”断奶仔猪,随机分为5个处理组,每组5个重复,每个重复10头猪,试验期14 d。分别饲喂基础日粮(NC组)、基础日粮+金霉素75 mg·kg-1(PC组)、基础日粮+GlcN 1 g·kg-1(G1组)、基础日粮+GlcN 2 g·kg-1(G2组)和基础日粮+GlcN 3 g·kg-1(G3组),在试验14 d每组随机选择两个重复采集仔猪的血清和粪便样品,检测血清氧化应激和炎症相关指标,解析粪便微生物群构成,并对血清指标和微生物组成做相关性分析。结果表明:1)GlcN添加能够改变血清丙二醛(MDA)含量、总抗氧化能力(T-AOC)以及过氧化氢酶(CAT)和总超氧化物歧化酶(T-SOD)活性,改变炎症指标白细胞介素-10(IL-10)、白细胞介素1β(IL-1β)水平;2)GlcN添加能够影响肠道微生物组成,在门水平上,各组中占比前三的菌门为厚壁菌门(Firmicutes)、拟杆菌门(Bacteroidota)和螺旋体门(Spirochaetota);在属水平上,与NC组相比,G2组瘤胃球菌科UCG-002属细菌丰度显著降低,并且与T-SOD呈显著负相关(P<0.05);G3组norank_f_Eubacterium_coprostanoligenes_group丰度显著降低(P<0.05);G1组norank_f_Ruminococcaceae丰度显著增加(P<0.05);G2组毛螺菌科Dorea属细菌与T-SOD呈显著正相关、G3组Dorea与IL-6呈显著负相关(P<0.05);在G2组中Christensenellaceae_R-7_group与肿瘤坏死因子-α(TNF-α)呈显著负相关,在G3组中与T-SOD呈显著正相关(P<0.05);GlcN添加后仔猪肠道中与抗氧化指标和抗炎指标相关性均较大的微生物属有UCG-002、DoreaChristensenellaceae_R-7_group。综上所述,GlcN能够增强断奶仔猪的抗氧化能力、抗炎功能以及调节肠道微生物菌群的组成共同缓解断奶应激。

关键词: 氨基葡萄糖, 断奶仔猪, 肠道菌群, 微生物, 饲养试验

Abstract:

The study aimed to investigate the effects of glucosamine (GlcN) on serum antioxidant and inflammatory indexes and intestinal microbiota in weaned piglets. A total of 250 healthy 21-day-old weaned "Duroc×Landrace×Yorkshire" piglets, with similar body weights, were randomly allocated into five treatment groups. Each group consisted of five replicates with ten piglets per replicate. The trial duration was 14 days. The piglets were fed with the following diets: basal diet (NC group), basal diet + 75 mg·kg-1 chlortetracycline (PC group), basal diet + 1 g·kg-1 g GlcN (G1 group), basal diet + 2 g·kg-1 GlcN (G2 group), and basal diet + 3 g·kg-1 GlcN (G3 group). At the end of the 14-day trial, two replicates were randomly selected from each group to collect serum and fecal samples. These samples were then subjected to assessments of serum oxidative stress and inflammation-related biomarkers, analysis of fecal microbiota composition, and correlation analysis between serum indicators and microbial composition. The results indicated that: 1) GlcN supplementation can change serum oxidative stress-related index MDA (malondialdehyde), T-AOC (total antioxidant capacity), CAT (catalase), T-SOD (total superoxide dismutase) and index of immune function IL-10 (interleukin-10) and IL-1β (interleukin-1beta). 2) GlcN supplementation can influence intestinal microbial flora. At the phylum level, the top three most abundant bacterial phyla were Firmicutes, Bacteroidota, and Spirochaetota. At the genus level, compared to the NC group, the abundance of Ruminococcaceae UCG-002 was significantly reduced and showed a significant negative correlation with T-SOD (P < 0.05) in the G2 group, the abundance of norank_f_Eubacterium_coprostanoligenes_group was reduced in the G3 group (P < 0.05). The abundance of norank_f_Ruminococcaceae increased in the G1 group (P < 0.05). Specifically, Lachnospiraceae Dorea in the G2 group showed a significant positive correlation with T-SOD, whereas in the G3 group, it exhibited a significant negative correlation with IL-6 (P < 0.05). Additionally, Christensenellaceae_R-7_group was negatively correlated with TNF-α (tumor necrosis factor-α) in the G2 group (P < 0.05), while it displayed a significant positive correlation with T-SOD in the G3 group (P < 0.05). After GlcN supplementation, three genera including UCG-002, Dorea and Christensenellaceae_R-7_group in piglet intestine were closely related to both antioxidant and anti-inflammatory indexes. In summary, GlcN can enhance the antioxidant capacity and immune function, and regulate intestinal microbiota together to alleviate weaning stress in piglets.

Key words: glucosamine, weaned piglets, intestinal flora, microorganisms, feeding experiment

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