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在被养为无蛋白或氨酸饮食的 brojlers 肠道微生物群的组成
1Department of Animal Nutrition and Sustainable Production, Estación Experimental del Zaidín, 18008 Granada, Spain.
Poultry science
|October 16, 2024
概括
没有蛋白质 (PF) 的饮食会对肉肠道微生物群产生负面影响,减少有益的Lactobacillus spp. 和越来越多的有害的肠杆菌. 素 (CAS) 饮食的副作用比PF饮食少.
科学领域:
- 动物营养和新陈代谢
- 微生物学 微生物学
- 胃肠病学 胃肠病学
背景情况:
- 肠道微生物群的组成对肉的健康和表现至关重要.
- 饮食中的蛋白质来源显著影响肠道微生物环境.
- 了解无蛋白 (PF) 和素 (CAS) 饮食的影响对于优化 brojler 养是必不可少的.
研究的目的:
- 为了研究无蛋白 (PF) 饮食与基于素 (CAS) 的饮食对Cobb500肉肠道微生物群的影响.
- 将这些效应与标准的玉米和大豆饮食进行比较.
- 评估对肠道健康和潜在的促炎状态的影响.
主要方法:
- 科布500肉被食无蛋白 (PF) 饮食,基于素 (CAS) 的饮食,或商用玉米-大豆饮食.
- 测量了体内氨基酸 (AA) 流量.
- 用差别分析,ANOSIM,RT-qPCR分析肠道微生物组合,并测序阴道和白内障含量和阴道组织.
主要成果:
- 与PF饮食相比,养含蛋白质饮食 (CAS或玉米-大豆) 的鸟类的体内AA流量显著更高.
- 在PF/CAS饮食和玉米-大豆饮食之间,微生物群的组成有显著差异,PF和CAS表现出一些相似之处.
- 这种PF饮食导致了Lactobacillus spp.的大幅减少. 肠道细菌和其他潜在的致病细菌的增加,表明一种促炎状态. 在CAS饮食中,副作用较轻.
结论:
- 没有蛋白质的饮食显著改变肉肠道微生物群,促进促炎症的环境.
- 基于素的饮食减轻了无蛋白饮食所观察到的一些不良影响.
- 与没有蛋白质的饮食相比,含有高度消化的蛋白质的饮食更适合确定内源性氨基酸分泌.
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