发酵饮食对孕期晚期母猪的生殖能力和便微生物群的影响
Hai Sheng1, Chaoqi Liu1, Zhentian Li1
1College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China.
Frontiers in nutrition
|May 19, 2025
概括
将发酵饮食添加到怀孕晚期的母猪中,通过提高蛋白质消化能力和肠道微生物群平衡,显著改善了生殖性能. 这种饮食策略提高了子的体重和母猪免疫力,证明了其在猪生产中的潜力.
科学领域:
- 动物科学动物科学
- 生殖生物学 生殖生物学
- 微生物学 微生物学
背景情况:
- 晚期怀孕对于母猪健康和胎儿发育至关重要.
- 在此期间优化母猪繁殖对于高效的猪生产至关重要.
- 发酵饮食对动物的健康和表现有潜在的好处.
研究的目的:
- 研究补充发酵饮食对妊娠晚期母猪生殖表现的影响.
- 评估发酵饮食对母猪健康的影响,包括蛋白质消化能力,氧化应激和免疫力.
- 为了分析胃肠道微生物群组成的变化,以应对发酵饮食补充剂.
主要方法:
- 二十四只第三次怀孕的母猪被分为四组 (对照组和三组补充了5%,10%或15%的发酵饮食).
- 实验持续了35天,从怀孕80天到分娩.
- 评估了生殖性能,原始蛋白质消化能力,血清生物化学参数,免疫指标和肠道微生物群组成 (16S rRNA测序).
主要成果:
- 与15%发酵饮食补充的母猪显示出最佳的生殖表现,与对照组相比, litter 体重增加了24.91%.
- 在发酵饮食组中,原蛋白的消化能力明显高于发酵饮食组.
- 补充剂调节了各种生物化学和免疫标志物的血清水平,降低了氧化应激指标 (ROS,MDA) 和增加了抗氧化能力 (GSH-Px).
- 16S rRNA分析显示了肠道微生物群的显著变化,有益细菌 (例如,Bacteroidota) 的丰度增加,潜在有害细菌 (例如,蛋白质细菌) 的丰度减少.
结论:
- 用发酵料补充孕期晚期母猪的饮食可以改善生殖结果.
- 发酵饮食提高了蛋白质的消化能力,调节了肠道微生物群,提高了抗氧化能力,并加强了母猪的免疫力.
- 这种饮食策略有望改善母猪的生殖性能和整体健康状况.
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