抗氧化能力,免疫功能和肝脏巨细胞极化在LPS挑战下断奶小猪的tributyrin的影响
Meng Yuan1, Shuai Ning1, Dongming Yu1
1College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
Animals : an open access journal from MDPI
|October 16, 2025
概括
食补充剂改善了断奶小猪的生长和肝脏健康. 它增强了抗氧化能力,免疫反应,调节了巨细胞两极分化,减轻了炎症损伤,并支持了密集农业的整体性能.
科学领域:
- 动物科学动物科学
- 营养 营养 营养 营养 营养
- 免疫学 免疫学 免疫学
背景情况:
- 强化养殖和禁用抗生素会损害小猪的发育,增加对肝功能障碍和生长不良的易感性.
- 早期断奶的小猪面临生理上的挑战,使它们容易受到压力和疾病的影响.
研究的目的:
- 为了评估食助剂对断奶小猪生长表现的影响.
- 在免疫学挑战下评估tributyrin对抗氧化能力,免疫反应和肝脏巨细胞两极分化的影响.
主要方法:
- 一个2x2的因子设计与饮食 (基础与0.2%tributyrin) 和免疫挑战 (盐水与脂多糖).
- 分析了生长性能,血清/肝脏抗氧化标志物 (CAT,MDA,GSH-pX,GSH),细胞因子水平 (IL-10,IL-6,IL-1β) 和巨分极标志物.
- 研究了促炎和抗炎细胞因子和信号通路 (SIRT1/NF-κB,JAK2/STAT6) 的基因表达.
主要成果:
- 在最初的14天内,三氨酸显著改善了每日平均增益 (ADG).
- 在脂聚糖挑战下,tributyrin增强了抗氧化状态 (增加了CAT,GSH-pX;减少了MDA,GSH) 和调节的免疫反应 (增加了IL-10,减少了IL-6,IL-1β).
- 三布林促进了M2巨分化,降低了促炎性细胞因子的调节,并改变了信号通路 (抑制了SIRT1/NF-κB,激活了JAK2/STAT6).
结论:
- Tributyrin有效地改善了断奶小猪的生长性能.
- 它可以增强抗氧化和免疫功能,同时通过特定的信号通路调节巨细胞极化来减少肝炎.
- 在密集型养殖系统中,tributyrin提供了一种可行的策略,以减轻与压力相关的肝损伤,并改善小猪健康.
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