基饮食中的微生物动态:阶段养和植物酶过量剂量对玉米基饮食的影响
1Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634, USA.
Research in veterinary science
|March 8, 2026
概括
与以玉米为基础的饮食相比,食基于的肉显示出类似的生长和肠道微生物组概况. 植物酶过量剂量并没有显著改变微生物组的动态,这表明.
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 禽类的营养 养
背景情况:
- 肠道微生物群在肉的健康和表现中起着至关重要的作用.
- 了解谷物类型和植物酶等饮食成分如何影响微生物群对于优化家禽生产至关重要.
- 饮食阶段显著影响肉肠道微生物群的发育.
研究的目的:
- 评估不同植物酶水平的土与玉米基饮食对 brojler cecal 微生物组合的影响.
- 为了确定不同养阶段 (开始,生长,完成) 对肠道微生物群的影响.
- 评估植物酶过量剂在调节肉肠道微生物群中的有效性.
主要方法:
- 1500只雄性肉被分配给三种饮食治疗:用标准植物酶的玉米,用标准植物酶的,或用超剂量的植物酶的.
- 在开始,种植和完成阶段收集了Cecal digesta样本.
- 使用16S rRNA基因测序来分析微生物社区结构和多样性.
主要成果:
- 微生物多样性随着鸟类的年龄增长而增加,在完成阶段达到顶峰.
- 微生物群落结构主要是由食阶段的进展驱动的.
- 谷物类型和植物酶水平对整体多样性产生了轻微影响,尽管改变了特定的细菌种群 (例如,增加了Muribaculaceae,减少了Ruminococcaceae).
- 在所有饮食治疗中,生长表现和微生物组概况是可比的.
结论:
- 可以有效地作为肉饮食中的玉米替代品,而不会对生长或微生物群产生负面影响.
- 饮食阶段进展是塑造肉肠道微生物组的主要因素.
- 在研究的条件下,植物酶过量剂不会显著改变肉的肠道微生物组合.
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