饮食中的多不和脂肪酸对成熟 brojler 的 cecal 微生物组特征的影响
Vidya V Jadhav1, Yewande O Fasina2, Scott H Harrison1
1Department of Biology, North Carolina Agricultural and Technical State University, Greensboro, NC, USA 27411.
Poultry science
|May 2, 2025
概括
饮食脂肪类型显著影响肉肠道微生物群. 欧米茄-3多不和脂肪酸 (PUFA) 促进微生物的多样性和功能,而和脂肪酸 (SFA) 减少它,影响营养利用和病原体耐药性.
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 营养科学 营养科学
背景情况:
- 饮食组成极大地影响肉肠道微生物群.
- 了解不同类型的食脂肪对肠道微生物生态的影响对于优化家禽生产至关重要.
研究的目的:
- 研究各种食脂肪来源 (鱼油,亚麻油,油脂,子油) 对肉的微生物组成和预测功能的影响.
- 为了比较omega-3多不和脂肪酸 (PUFA) 和和脂肪酸 (SFA) 在不同生长阶段对肠道微生物群的影响.
主要方法:
- 肉的食补充了不同的脂肪来源 (家禽脂肪,鱼油,亚麻油,油脂,子油).
- 在41岁和55岁时收集了Cecal digesta,用于微生物组成和功能分析.
- 生物信息工具被用来预测基于成分数据的微生物功能.
主要成果:
- 在第55天,富含PUFA的饮食 (鱼油,亚麻油) 维持了脑内微生物多样性,而富含SFA的饮食 (,子油) 与对照组相比显著降低了微生物多样性.
- 摄入PUFA与增强的微生物碳水化合物代谢和短链脂肪酸 (SCFA) 生产相关.
- 富含SFA的饮食减少了有益微生物 (例如,Lachnospiraceae,Bifidobacteriaceae) 的丰富性,可能会损害营养消化能力和病原体耐药性.
结论:
- 食脂肪类型对 brojler cecal microbiota 的组成和功能产生了截然不同的影响.
- 加入富含PUFA的脂肪可以提高肉的碳水化合物利用率和SCFA产量.
- 富含PUFA的饮食显示出改善禽类肠道健康,营养消化能力和病原体抵抗力的潜力.
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