用热爱菌株发酵的堆肥可以通过肠道微生物调节来降低产母的热应激引起的死亡率
Yudai Inabu1,2, Hirokuni Miyamoto3,4,5,6,7, Hideyuki Takahashi8
1Kuju Agricultural Research Center, Graduate School of Agriculture, Kyushu University, Oita, 878-0201, Japan.
Animal microbiome
|February 4, 2026
概括
用热友发酵堆肥的食补充剂降低了产母的热应激死亡率. 这种干预改变了肠道微生物群的组成,增加了有益的短链脂肪酸 (SCFA).
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 禽畜科学 禽畜科学 禽畜科学
背景情况:
- 热应激 (HS) 对家禽的健康和生产力产生负面影响.
- 肠道微生物群在宿主对HS的抵抗力中的作用正在调查中.
- 了解HS缓解策略对于家禽业至关重要.
研究的目的:
- 研究以热友发酵堆肥作为食补充剂对产母耐热度的影响.
- 探索涉及肠道微生物群和短链脂肪酸 (SCFA) 的潜在机制.
主要方法:
- 一项大规模的实地研究,涉及601,474只暴露在自然热应激条件下的产母.
- 口服使用来自热爱菌株Bacillaceae的堆肥提取物.
- 对死亡率和肠道微生物组成的差异分析.
- 综合计算评估使用因子分析和机器学习 (ML) 来建模SCFA配置文件和细菌种群.
主要成果:
- 补充堆肥提取物显著降低了产母的热应激引起的死亡率.
- 观察到肠道微生物组合的变化,Lachnospiraceae NK3A20组,Enterococcus和Lactobacillus的增加,Prevotellaceae NK3B31组,Romboutsia和Turicibacter的减少.
- 堆肥的使用导致了酸盐和丁酸盐 (SCFA) 的水平增加,并降低了Romboutsia和Turicibacter的水平.
结论:
- 用热友发酵堆肥补充饮食是一种有效的策略,可以缓解产母的热应激引起的死亡率.
- 观察到的好处与肠道微生物群的显著结构变化和改变的SCFA度有关.
- 这项研究强调了微生物干预措施在提高家禽对环境压力因素的抵抗力方面的潜力.
相关概念视频
Microbial Fermentation
1.5K
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...
1.5K
Responses to Heat and Cold Stress
14.8K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
14.8K
Fermentation
129.4K
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...
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...
129.4K
Laying Concrete Masonry
390
Constructing a concrete masonry wall involves a series of steps designed to ensure durability, stability, and alignment. The construction starts with preparing the base, which includes cleaning the area where the wall will be erected. The next step involves spreading mortar where the first row of concrete blocks will be laid, typically starting at a corner section to help define the wall's boundaries.
Mortar application focuses on the face shells of the blocks, the sides that face outward,...
Mortar application focuses on the face shells of the blocks, the sides that face outward,...
390
Specific Heat
67.5K
The specific heat capacity of a substance refers to the energy required to increase the temperature of one gram of that substance by one degree Celcius. Specific heat capacity is often represented in calories (cal), grams (g), and degrees Celsius (oC), but can also be expressed in joules (J), kilograms (kg), and Kelvin (K), among other units.
For example, increasing the temperature of one gram of water by 1°C requires one calorie of heat energy and can be written as 1 cal/g-°C, or...
For example, increasing the temperature of one gram of water by 1°C requires one calorie of heat energy and can be written as 1 cal/g-°C, or...
67.5K
Quantifying Heat
62.2K
Thermal Energy Microscopically, thermal energy is the kinetic energy associated with the random motion of atoms and molecules. Temperature is a quantitative measure of “hot” or “cold”, which depends on the amount of thermal energy. When the atoms and molecules in an object are moving or vibrating quickly, they have a higher average kinetic energy (KE) (or higher thermal energy), and the object is perceived as “hot”, or it is described as being at a higher temperature. When the...
62.2K


