December 31, 2023 Journal article Closed Access

Pétursdóttir, Ásta H.; Einarsdóttir, Brynja; Guðmundsdóttir, Elísabet Eik; Desnica, Natasa; Sim, Rebecca; Kuenzel, Susanne; Rodehutscord, Markus; Titze, Natascha; Wild, Katharina

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    "description": "<p>This report contains the main experimental results from the project SeaCH4NGE-PLUS. Briefly, the screening of chemical content of a range of seaweeds collected in Iceland in 2020 and 2021 did not identify a bromoform rich seaweed that had high promise as a methane reducing feed component for cattle. Certain samples of brown macroalgae were high in total phenolic content, indicating a high phlorotannin content that has been associated with a moderate methane reduction. That is consistent with the findings of this research. Samples of Asparagopsis sp. indicated that they may have a short shelf life to preserve the bromoform content. Fermentation may increase slightly the methane reduction potential of seaweed, but extracting phlorotannins did not yield a much higher reduction of methane as hypothesized.</p>\n\n<p>This report is closed until 31.12.2023.<br>\n___</p>\n\n<p>&THORN;essi sk&yacute;rsla inniheldur helstu tilraunani&eth;urst&ouml;&eth;ur &uacute;r verkefninu SeaCH4NGE-PLUS.&nbsp;&Iacute; stuttu m&aacute;li s&yacute;ndi skimun &aacute; efnainnihaldi u.&thorn;.b. 20 &thorn;&ouml;rungategunda sem safna&eth; var &aacute; &Iacute;slandi 2020 og 2021, ekki fram &aacute; br&oacute;m&oacute;formr&iacute;kt &thorn;ang, en bromoform r&iacute;kt &thorn;ang getur haft metan minnkandi &aacute;hrif &thorn;egar &thorn;a&eth; er gefi&eth; nautgripum.&nbsp;S&yacute;ni af br&uacute;n&thorn;&ouml;rungum voru gjarnan h&aacute; &iacute; fen&oacute;linnihaldi, sem bendir til mikils fl&oacute;r&oacute;tann&iacute;ninnihalds sem hefur veri&eth; tengt h&oacute;flegri metanl&aelig;kkun. Ranns&oacute;knir &aacute; Asparagopsis &thorn;&ouml;rungum.&nbsp;gaf til kynna a&eth; &thorn;au s&yacute;ni g&aelig;tu haft stutt geymslu&thorn;ol, en &aacute;hrif voru minni en reikna&eth; var me&eth;.&nbsp;Gerjun getur haft l&iacute;tilleg j&aacute;kv&aelig;&eth; &aacute;hrif &aacute; metanframlei&eth;slu (&thorn;.e.a.s. dregi&eth; a&eth;eins meira &uacute;r framlei&eth;slu), en &uacute;tdr&aacute;ttur af fl&oacute;r&oacute;tann&iacute;num haf&eth;i ekki afgerandi &aacute;hrif &aacute; metanframlei&eth;slu.&nbsp;</p>\n\n<p>&THORN;essi sk&yacute;rsla er lokU&eth; til 31.12.2023.</p>\n\n<p>&nbsp;</p>", 
    "language": "eng", 
    "title": "Seaweed supplementation to mitigate methane (CH4) emissions by cattle (SeaCH4NGE-PLUS)", 
    "notes": "Funding: Loftslagssj\u00f3\u00f0ur, Rann\u00eds", 
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    "keywords": [
      "seaweed", 
      "feed", 
      "algae", 
      "macroalgae", 
      "macrominerals", 
      "bromoform", 
      "methane", 
      "climate change", 
      "trace elements", 
      "iodine", 
      "cattle", 
      "cows", 
      "quality", 
      "safety"
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    "publication_date": "2023-12-31", 
    "creators": [
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        "affiliation": "Mat\u00eds", 
        "name": "P\u00e9tursd\u00f3ttir, \u00c1sta H."
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        "affiliation": "Mat\u00eds", 
        "name": "Einarsd\u00f3ttir, Brynja"
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      {
        "affiliation": "Mat\u00eds", 
        "name": "Gu\u00f0mundsd\u00f3ttir, El\u00edsabet Eik"
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      {
        "affiliation": "Mat\u00eds", 
        "name": "Desnica, Natasa"
      }, 
      {
        "affiliation": "Mat\u00eds", 
        "name": "Sim, Rebecca"
      }, 
      {
        "affiliation": "University of Hohenheim", 
        "name": "Kuenzel, Susanne"
      }, 
      {
        "affiliation": "University of Hohenheim", 
        "name": "Rodehutscord, Markus"
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      {
        "affiliation": "University of Hohenheim", 
        "name": "Titze, Natascha"
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      {
        "affiliation": "University of Hohenheim", 
        "name": "Wild, Katharina"
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