乳牛生産システムからのメタン排出：発生源、要因、環境影響、緩和戦略に関するレビュー
Methane Emissions from Dairy Production Systems: Sources, Drivers, Environmental Impacts, and Mitigation Strategies: A Review (原題)
Mebratu Mesfin, Ediris Meko
🤖 gxceed AI 要約
日本語
乳牛生産におけるメタンはルーメン発酵とふん尿管理から発生し、エネルギー損失と温室効果ガス排出の双方を意味する。濃厚飼料やデンプン高含有飼料は腸内メタンを低減し、ふん尿由来メタンは貯留管理とバイオガス回収で削減可能とする。途上国では飼養・飼料・ふん尿管理の非効率が排出量を押し上げており、給餌改善と農家への知識提供を緩和策として挙げる。
English
This review examines methane from dairy systems, arising from enteric fermentation and manure management, as both an energy loss and a GHG source. High-concentrate and high-starch diets can lower enteric methane, while manure methane can be cut through storage management and captured as biogas. In developing countries, inefficient feeding and manure practices drive emissions, so improved feeding systems and farmer education are proposed as mitigation levers.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本のGX文脈では、Scope 3 カテゴリ1（購入した製品・サービス）における農畜産由来メタンの算定や、食品企業のサプライチェーン排出開示に関わる基礎知見として位置づけられる。SSBJ開示や有報でのバリューチェーン排出把握を進める日本企業にとって、乳業・食料品セクターの排出源理解に資する。
In the global GX context
For global disclosure scholarship, this review supports Scope 3 Category 1 accounting for food and dairy value chains, relevant to CSRD and ISSB requirements on agricultural emissions. It adds a developing-country perspective often underrepresented in corporate Scope 3 inventories, though it offers no disclosure framework or quantitative benchmark.
👥 読者別の含意
🔬研究者:Provides a consolidated overview of enteric and manure methane drivers and dietary mitigation options in dairy systems.
🏢実務担当者:Useful background for food and dairy companies mapping agricultural methane within Scope 3 Category 1 inventories.
🏛政策担当者:Highlights the role of feeding-system improvement and farmer education in developing-country livestock methane mitigation.
📄 Abstract（原文）
Methane is the main important greenhouse gas that emitted into the atmosphere by livestock during the process of enteric fermentation and manure management. Developing countries produce a large quantity of those emissions, caused mainly by inefficient animal rearing systems, feed production and manure management. Methane is emitted from livestock in developing countries and the mitigation actions that could be put in place to reduce atmospheric emissions and increase animal productivity. Developing countries are characterized by low Greenhouse gas emissions to the atmosphere and their potential impact on global climate have become important concerns world-wide. The impact of methane in industrialized countries, the situation is the opposite of developing countries. Livestock production systems, such as dairy farms, provide in both sinks and sources for greenhouse gas. Methane is produced during the anaerobic fermentation of hydrolyzed dietary carbohydrates in the rumen and represents an energy loss to the host besides contributing to emissions of greenhouse gases into the environment. The methane mitigation strategies require robust prediction of emissions from rumen and Diets high in concentrates can result in a lower emission of methane. Also diets with a high content of starch, such as alfalfa-grass, have a methane-decreasing. It is profitable to reduce enteric methane formation since that form of methane is unavoidably lost. Methane emissions from manure, on the other hand, are possible to reduce during storage and manure-derived methane can also be collected and used as biogas fuel. It is earlier shown that it is possible by dietary means to compensate a reduced enteric methane production by a higher or maintained production of methane from manure. The Therefore, improved feeding systems in dairy farms and provision of knowledge about methane emission transfer to dairy farmers are some of control strategies which contributes in methane gas reduction.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.11648/j.ajz.20260902.12first seen 2026-11-13 04:57:20
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