新型氧化料添加剂使用模拟技术减少体外甲排放
Caroline O'Donnell1, Camilla Thorn2, Emily Roskam3
1Microbial Ecology Laboratory, School of Biological and Chemical Sciences, University of Galway, Galway, Ireland.
The Science of the total environment
|March 20, 2024
概括
氧化化合物如尿素过氧化 (UHP) 和过氧化 (MgO2) 有效地降低了反动物的肠道甲 (CH4) 生产. 更高的氧气输送导致更大的CH4抑制,为减轻温室气体排放提供了一个有前途的战略.
科学领域:
- 农业科学 农业科学
- 动物营养 动物营养
- 环境科学 环境科学
背景情况:
- 来自反动物的肠道甲 (CH4) 是一个主要的温室气体和能量损失.
- 氧化化合物正在被探索为反动物料的新型抗甲原剂.
研究的目的:
- 评估尿素过氧化 (UHP) 和过氧化 (MgO2) 在减少CH4生产中的有效性.
- 研究这些化合物对总气体产量 (TGP),挥发性脂肪酸 (VFA) 概况和营养物质消失的影响.
主要方法:
- 在实验室中以50:50的草料:缩剂饮食的方法模拟乳头.
- 根据氧气输送,测试了UHP (有/没有KI) 和MgO2的各种度.
- 测量CH4产量,TGP,VFA概况和营养物质的消失.
主要成果:
- 所有治疗都以剂量依赖的方式降低了CH4参数.
- 一次UHP + KI显著降低了64%的CH4和71%的可消化的有机物中的CH4.
- 治疗改变了VFA概况,减少了酸盐和丁酸盐,同时增加了酸盐和酸盐.
结论:
- 氧化化合物显示出降低反动物肠道CH4排放的潜力.
- 剂量和氧气输送是抑制CH4的关键因素.
- 建议对缓释氧源进行进一步的研究,以持续减少CH4.
更多相关视频
10:29Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers
Published on: March 21, 2016
12.3K
06:11Author Spotlight: Advancing Anaerobic Microbiota Research Using a Novel Respirometry Protocol
Published on: April 26, 2024
1.2K
相关概念视频
Metabolism of Chemolithotrophs
Chemolithotrophs are microorganisms that obtain energy by oxidizing inorganic molecules such as hydrogen gas (H₂), ammonia (NH₃), reduced sulfur compounds (H₂S, S²⁻), and ferrous iron (Fe²⁺). Unlike heterotrophic organisms that rely on organic carbon, chemolithotrophs transfer electrons from these inorganic donors to the electron transport chain (ETC), generating a proton motive force (PMF) that drives ATP synthesis through oxidative phosphorylation. However, because inorganic electron donors...
Microbes and Methanogenesis
Methanogenesis is a critical microbial process in anaerobic ecosystems responsible for the biological production of methane, a potent greenhouse gas and valuable biofuel. This metabolic pathway is primarily facilitated by methanogenic archaea, which thrive in anoxic environments such as wetlands, sediments, and animal gastrointestinal tracts. The absence of oxygen in these habitats prevents aerobic respiration, thereby favoring alternative biochemical pathways for organic matter degradation.In...
