刺激性补充剂和富含纤维素的碳水化合物调节肉发酵纤维的能力
Claire Davies1, Gemma González-Ortiz1, Teemu Rinttilä1,2
1AB Vista, Wiltshire, United Kingdom.
Frontiers in microbiology
|January 26, 2024
概括
刺激生物增强肉肠道微生物群,增加有益细菌和短链脂肪酸 (SCFA),以改善纤维发酵. 这项研究表明,刺激生物改善了阴茎发酵,改变了阴囊发酵,可能会提高 brojler 的性能.
科学领域:
- 动物营养和肠道微生物学
- 料添加剂和家禽科学
背景情况:
- 兴奋剂是一种新型的料添加剂,旨在通过刺激肠道微生物群来提高纤维发酵能力.
- 了解刺激生物对不同肠道环境中特定基质发酵的影响,对于优化家禽营养至关重要.
研究的目的:
- 为了评估一种刺激生物在肉乳腺和肠微生物群的丰富的基质发酵上的ex vivo效应.
- 评估兴奋剂对微生物种群,气体和短链脂肪酸 (SCFA) 生产以及碳水化合物利用的影响.
主要方法:
- 来自受刺激或对照饮食养的肉的皮质和白内障含量被用作活体发酵的注射剂.
- 添加了富含氧化的基质,包括不同程度的聚合 (DP) 的氧化 (XYL),氧化 (XOS) 和小麦 (WB).
- 测量包括总气体,SCFA,挥发性脂肪酸 (VFA) 生产,细菌量化 (乳杆菌,菌) 和9小时的碳水化合物利用.
主要成果:
- 刺激性状体内注射剂显著增加了总气体和VFA产量,增加了Lactobacillus spp.,并减少了Enterococcus spp. 不管是什么基板,不管是什么基板.
- 刺激性白内障注射剂导致VFA与分支链脂肪酸 (BCFA) 的比率更高.
- 皮质微生物群优先代谢WB,而皮质微生物群更喜欢XOS,特别是长链XOS (lDP-XOS).
结论:
- 兴奋剂促进有益的细菌,如乳酸菌,并增加肉肠中的VFA产量,可能提高性能.
- 体和体微生物群表现出明显的基质偏好,突出显示了基质类型在刺激性疗效中的重要性.
- 刺激生物可以调节肠道微生物群的组成和发酵,为提高 brojlers 的纤维利用提供了一个有希望的策略.
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