相关实验视频

Updated: Feb 14, 2026

Analysis of Interactions between Endobiotics and Human Gut Microbiota Using In Vitro Bath Fermentation Systems

Analysis of Interactions between Endobiotics and Human Gut Microbiota Using In Vitro Bath Fermentation Systems

Published on: August 23, 2019

西藏半细毛羊的菌群和发酵参数反映了生长阶段和潜在的营养适应

Hongjin Liu¹, Jiahui Hao^1,2, Xueping Han³

¹Northwest Institue of Plateau Biology, CAS, Xining, China.

Animal bioscience

|February 12, 2026

概括

半细毛羊的小肠微生物群随着年龄的增长而发生显著变化,影响营养转化. 微生物群落的这些与年龄相关的转变对于理解绵羊发育和优化营养至关重要.

科学领域:

动物科学动物科学
微生物学微生物学
类动物营养类动物营养

背景情况:

肠微生物组对于消化植物生物质和牲畜中的营养转化至关重要.
虽然研究了西藏牲畜的肠道微生物组,但半细毛羊 (SF-sheep) 的小肠微生物组尚未得到充分理解.
了解这些微生物群落是改善牲畜健康和生产力的关键.

研究的目的:

为了研究SF羊的体微生物群组成的与年龄相关的变化.
为了分析不同年龄组的乳头发酵参数的变化.
为了确定与SF羊生长阶段相关的微生物适应.

主要方法:

根据年龄分组SF绵羊:羔羊 (2个月),年幼和成年 (大约2个月). 50个月的时间).
使用16S rRNA基因测序来分析微生物组成的样.
高性能液体染色学 (HPLC) 用于测量短链挥发性脂肪酸 (SCVFA).

主要成果:

体NH3-N度随年龄而变化,在未成年人中更高.
微生物社区结构随着年龄的增长而变得更加均,而在成年人中,多样性增加.
特定的细菌种群 (Saccharibacteria,Succiniclasticum,Euryarchaeota,Prevotellace_UCG_001) 与不同的年龄组有关.
SCVFA与纤维化和多糖分解细菌有关.

结论:

在SF绵羊中,小羊毛的微生物生态系统经历了与年龄相关的重大重组.
这些微生物的转变反映了对宿主生理状态和营养需求的适应.
研究结果为制定SF羊的特定年龄营养管理策略提供了洞察力.

关键词:

16S rRNA 是一个16S rRNA.一个适应的适应.年龄年龄年龄年龄年龄年龄体中的微生物群在SCFVA中,我们可以看到SCFVA.半精细的绵羊半精细的绵羊

更多相关视频

Author Spotlight: Implications of Non-Nutritive Sucking on Speech Emergence and Infant Development

Author Spotlight: Implications of Non-Nutritive Sucking on Speech Emergence and Infant Development

Published on: April 19, 2024

High-throughput, Microscale Protocol for the Analysis of Processing Parameters and Nutritional Qualities in Maize Zea mays L.

High-throughput, Microscale Protocol for the Analysis of Processing Parameters and Nutritional Qualities in Maize Zea mays L.

Published on: June 16, 2018

相关概念视频

Fermentation

Fermentation

Most eukaryotic organisms require oxygen to survive and function adequately. Such organisms produce large amounts of energy during aerobic respiration by metabolizing glucose and oxygen into carbon dioxide and water. However, most eukaryotes can generate some energy in the absence of oxygen by anaerobic metabolism.
Fermentation is a type of metabolic process that occurs in the absence of oxygen, where organic molecules such as glucose are broken down to produce energy. During this process, the...

The Roles of Bacteria and Fungi in Plant Nutrition

The Roles of Bacteria and Fungi in Plant Nutrition

Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.

Cloning of Dolly the Sheep

Cloning of Dolly the Sheep

The first successfully cloned mammal was Dolly, a sheep, born on 5th July 1996 at Roslin Institute, Scotland. The cloned sheep was named after the American singer Dolly Parton. Dolly lived for seven years and died of respiratory complications, which is speculated to be due to the actual age of her DNA. Because the DNA in cloned cells belongs to an older individual, the cloned individual’s life expectancy may be affected. Indeed, analysis of Dolly’s DNA revealed shorter...

Fineness of Cement

Fineness of Cement

The fineness of cement directly influences the rate of hydration, as the hydration begins at the surface of the cement particles. In addition to hydration, the fineness of cement is vital for various properties of concrete including workability, gypsum requirement, and long-term behavior. The fineness of cement is represented in terms of the specific surface of cement which is typically measured in square meters per kilogram, with several methods available for this determination.
Direct...

Fineness Modulus

Fineness Modulus

The fineness modulus (FM) of aggregate is a numerical index that measures the coarseness or fineness of the particles. It is calculated by adding the cumulative percentages of aggregate retained on each of a specified series of sieves and dividing the sum by 100.
Consider performing sieve analysis on sand through a set of ASTM sieves. The weight of aggregate retained in each sieve and pan placed at the bottom is recorded, as given in Column B of Table 1.
To determine the fineness modulus of...

Microbial Fermentation

Microbial Fermentation

Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...