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oapen-20.500.12657-614812024-03-27T14:14:32Z Nutritional and anti-methanogenic potentials of macroalgae for ruminants Pandey, Deepak Mansouryar, Morteza Novoa-Garrido, Margarita Næss, Geir Kiron, Viswanath Hansen, Hanne Nielsen, Mette Olaf Khanal, Prabhat digestibility fermentation methane seaweeds secondary metabolites thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TV Agriculture and farming::TVT Aquaculture and fish-farming thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TV Agriculture and farming::TVF Sustainable agriculture thema EDItEUR::P Mathematics and Science::PS Biology, life sciences::PSP Hydrobiology::PSPA Phycology (algae and seaweed) The livestock production sector is facing challenges to find alternative feed resources and nutritional strategies to mitigate enteric methane (CH4) emissions from ruminants. Recently, marine macroalgae have emerged as potential anti-methanogenic feed ingredients due to their ability to suppress enteric CH4 production in ruminants. The anti-methanogenic properties of macroalgae have been ascribed to the contents of secondary metabolites, such as halogenated compounds e.g., bromoform in red species, and polyphenols or isoprenoids in brown species. These compounds may suppress methanogenesis by inhibiting the growth and activity of methanogens or by altering rumen fermentation pathways and the patterns of volatile fatty acids production. On the other hand, the anti-methanogenic macroalgae, particularly when added to diets in large amounts, are known to reduce animal performance, due to the presence of special and poorly degradable carbohydrates. Thus, finding a proper balance between the abilities to reduce CH4 emissions and sustain animal performance is important. 2023-02-27T12:21:03Z 2023-02-27T12:21:03Z 2021 chapter ONIX_20230227_9781786768919_7 9781786768919 https://library.oapen.org/handle/20.500.12657/61481 eng Burleigh Dodds Series in Agricultural Science application/pdf Attribution 4.0 International 9781786768919_web.pdf Burleigh Dodds Science Publishing Burleigh Dodds Science Publishing 10.19103/AS.2021.0091.14 10.19103/AS.2021.0091.14 9f8f6c63-e2ae-40b8-8aac-316abb377d6a Nord universitet 9781786768919 Burleigh Dodds Science Publishing 34 Cambridge [...] open access
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The livestock production sector is facing challenges to find alternative feed resources and nutritional strategies to mitigate enteric methane (CH4) emissions from ruminants. Recently, marine macroalgae have emerged as potential anti-methanogenic feed ingredients due to their ability to suppress enteric CH4 production in ruminants. The anti-methanogenic properties of macroalgae have been ascribed to the contents of secondary metabolites, such as halogenated compounds e.g., bromoform in red species, and polyphenols or isoprenoids in brown species. These compounds may suppress methanogenesis by inhibiting the growth and activity of methanogens or by altering rumen fermentation pathways and the patterns of volatile fatty acids production. On the other hand, the anti-methanogenic macroalgae, particularly when added to diets in large amounts, are known to reduce animal performance, due to the presence of special and poorly degradable carbohydrates. Thus, finding a proper balance between the abilities to reduce CH4 emissions and sustain animal performance is important.
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