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相关概念视频

Anatomy of the Intestines01:23

Anatomy of the Intestines

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Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
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The gut microbiome is formed by a vast and diverse community of bacteria that colonizes our large intestine. These bacteria start residing in the gut from birth and continue diversifying throughout life, influenced by factors such as diet, lifestyle, and stress. The gut bacterial community also includes bacteria from food and those that enter the colon through the anus.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
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Bacterial Phylum Firmicutes01:27

Bacterial Phylum Firmicutes

Firmicutes is a diverse phylum of Gram-positive bacteria characterized by a low GC content in their genomes. This phylum includes organisms with monoderm or diderm cell envelopes, highlighting a complex evolutionary history. Firmicutes comprises several major orders, including Lactobacillales, Clostridiales, and Bacillales, which exhibit remarkable diversity in their morphology, metabolism, and ecological roles.The order Lactobacillales includes lactic acid bacteria, which are fermentative...

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相关实验视频

Updated: Jun 10, 2025

Author Spotlight: Advancing Intestinal Bacteria Cultivation for Poultry
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Author Spotlight: Advancing Intestinal Bacteria Cultivation for Poultry

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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.

Luis A Rubio1

  • 1Department of Animal Nutrition and Sustainable Production, Estación Experimental del Zaidín, 18008 Granada, Spain.

Poultry science
|October 16, 2024
PubMed
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.
关键词:
brojler 肉 肉 是一个高吞吐量测序的测序方法肠道微生物群的组成没有蛋白质的饮食无蛋白质饮食qPCRR 是一个很好的方法.

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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.