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Cited 48 time in webofscience Cited 54 time in scopus
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Strategies to Mitigate Enteric Methane Emissions from Ruminant Animalsopen access

Authors
Tseten, TenzinSanjorjo, Rey AnthonyKwon, MoonhyukKim, Seon-Won
Issue Date
Mar-2022
Publisher
한국미생물·생명공학회
Keywords
Global warming; methane; ruminants; rumen microbiome; methanogenesis; direct-fed microbials
Citation
Journal of Microbiology and Biotechnology, v.32, no.3, pp 269 - 277
Pages
9
Indexed
SCIE
SCOPUS
KCI
Journal Title
Journal of Microbiology and Biotechnology
Volume
32
Number
3
Start Page
269
End Page
277
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/1583
DOI
10.4014/jmb.2202.02019
ISSN
1017-7825
1738-8872
Abstract
Human activities account for approximately two-thirds of global methane emissions, wherein the livestock sector is the single massive methane emitter. Methane is a potent greenhouse gas of over 21 times the warming effect of carbon dioxide. In the rumen, methanogens produce methane as a by-product of anaerobic fermentation. Methane released from ruminants is considered as a loss of feed energy that could otherwise be used for productivity. Economic progress and growing population will inflate meat and milk product demands, causing elevated methane emissions from this sector. In this review, diverse approaches from feed manipulation to the supplementation of organic and inorganic feed additives and direct-fed microbial in mitigating enteric methane emissions from ruminant livestock are summarized. These approaches directly or indirectly alter the rumen microbial structure thereby reducing rumen methanogenesis. Though many inorganic feed additives have remarkably reduced methane emissions from ruminants, their usage as feed additives remains unappealing because of health and safety concerns. Hence, feed additives sourced from biological materials such as direct-fed microbials have emerged as a promising technique in mitigating enteric methane emissions.
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