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Seaweed and Seaweed Bioactives for Mitigation of Enteric Methane: Challenges and Opportunities

Abbott, D. Wade and Aasen, Inga Marie and Beauchemin, Karen A. and Grondahl, Fredri and Gruninger, Robert and Hayes, Maria and Huws, Sharon A. and Kenny, David A. and Krizsan, Sophie Julie and Kirwan, Stuart F. and Lind, Vibeke and Meyer, Ulrich and Ramin, Mohammad and Theodoridou, Katerina and von Soosten, Dirk and Walsh, Pamela J. and Waters, Sinéad and Xing, Xiaohui (2020). Seaweed and Seaweed Bioactives for Mitigation of Enteric Methane: Challenges and Opportunities. Animals. 10 , 2432
[Article Review/Survey]

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Abstract

Simple SummaryThe need to become more efficient in agriculture and the food industry exists parallel to the challenge of climate change. Meat and dairy production is the target of much scrutiny due to methane (CH4) emissions and global warming. On the other hand, it should be noted that two-thirds of the world's agricultural land consists of pastures and permanent grasslands and is used for livestock grazing. This land is predominantly unsuitable for arable purposes but facilitates the production of high-quality human-edible protein in the form of ruminant animal-derived meat and milk. This makes a significant contribution to feeding the world's population. There is a need to reduce CH4 emissions, however, and several approaches are being researched currently. Seaweeds are diverse plants containing bioactives that differ from their terrestrial counterparts and they are increasingly under investigation as a feed supplement for the mitigation of enteric CH4. Seaweeds are rich in bioactives including proteins, carbohydrates and to a lesser extent lipids, saponins, alkaloids and peptides. These bioactives could also play a role as feed ingredients to reduce enteric CH4. This review collates information on seaweeds and seaweed bioactives and their potential to impact on enteric CH4 emissions.Seaweeds contain a myriad of nutrients and bioactives including proteins, carbohydrates and to a lesser extent lipids as well as small molecules including peptides, saponins, alkaloids and pigments. The bioactive bromoform found in the red seaweed Asparagopsis taxiformis has been identified as an agent that can reduce enteric CH4 production from livestock significantly. However, sustainable supply of this seaweed is a problem and there are some concerns over its sustainable production and potential negative environmental impacts on the ozone layer and the health impacts of bromoform. This review collates information on seaweeds and seaweed bioactives and the documented impact on CH4 emissions in vitro and in vivo as well as associated environmental, economic and health impacts.

Authors/Creators:Abbott, D. Wade and Aasen, Inga Marie and Beauchemin, Karen A. and Grondahl, Fredri and Gruninger, Robert and Hayes, Maria and Huws, Sharon A. and Kenny, David A. and Krizsan, Sophie Julie and Kirwan, Stuart F. and Lind, Vibeke and Meyer, Ulrich and Ramin, Mohammad and Theodoridou, Katerina and von Soosten, Dirk and Walsh, Pamela J. and Waters, Sinéad and Xing, Xiaohui
Title:Seaweed and Seaweed Bioactives for Mitigation of Enteric Methane: Challenges and Opportunities
Series Name/Journal:Animals
Year of publishing :2020
Volume:10
Article number:2432
Number of Pages:28
Publisher:MDPI
ISSN:2076-2615
Language:English
Publication Type:Article Review/Survey
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Environmental Sciences related to Agriculture and Land-use
Keywords:methane emissions, rumen, ruminants, seaweeds, bioactive components, bromoform, bacteriocins, peptides, carbohydrates, lipids, saponins, phlorotannins, alkaloids, animal studies, RUSITEC
URN:NBN:urn:nbn:se:slu:epsilon-p-110189
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-110189
Additional ID:
Type of IDID
DOI10.3390/ani10122432
Web of Science (WoS)000602217400001
ID Code:22192
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(NL, NJ) > Dept. of Agricultural Research for Northern Sweden
(VH) > Dept. of Agricultural Research for Northern Sweden
Deposited By: SLUpub Connector
Deposited On:12 Feb 2021 10:13
Metadata Last Modified:12 Feb 2021 10:21

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