{"refrec":{"BRefID":348419,"RR":"<b>Roque, B.M.; Venegas, M.; Kinley, R.D.; de Nys, R.; Duarte, T.L.; Yang, X.; Kebreab, E.</b> (2021). Red seaweed (<i>Asparagopsis taxiformis</i>) supplementation reduces enteric methane by over 80 percent in beef steers. <i>PLoS One 16(3)</i>: e0247820. <a href=\"https://dx.doi.org/10.1371/journal.pone.0247820\" target=\"_blank\">https://dx.doi.org/10.1371/journal.pone.0247820</a>","BEntID":345113,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>PLoS One 16(3)</i>: e0247820. <a href=\"https://dx.doi.org/10.1371/journal.pone.0247820\" target=\"_blank\">https://dx.doi.org/10.1371/journal.pone.0247820</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Roque, B.M.; Venegas, M.; Kinley, R.D.; de Nys, R.; Duarte, T.L.; Yang, X.; Kebreab, E.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Roque, B.M. <i>et al.</i>","Englishabstract":"The red macroalgae (seaweed) <em>Asparagopsis</em> spp. has shown to reduce ruminant enteric methane (CH<sub>4</sub>) production up to 99% <em>in vitro</em>. The objective of this study was to determine the effect of <em>Asparagopsis taxiformis</em> on CH<sub>4</sub> production (g/day per animal), yield (g CH<sub>4</sub>/kg dry matter intake (DMI)), and intensity (g CH<sub>4</sub>/kg ADG); average daily gain (ADG; kg gain/day), feed conversion efficiency (FCE; kg ADG/kg DMI), and carcass and meat quality in growing beef steers. Twenty-one Angus-Hereford beef steers were randomly allocated to one of three treatment groups: 0% (Control), 0.25% (Low), and 0.5% (High) <em>A</em>. <em>taxiformis</em> inclusion based on organic matter intake. Steers were fed 3 diets: high, medium, and low forage total mixed ration (TMR) representing life-stage diets of growing beef steers. The Low and High treatments over 147 days reduced enteric CH<sub>4</sub> yield 45 and 68%, respectively. However, there was an interaction between TMR type and the magnitude of CH<sub>4</sub> yield reduction. Supplementing low forage TMR reduced CH<sub>4</sub> yield 69.8% (<em>P</em> &lt;0.01) for Low and 80% (<em>P</em> &lt;0.01) for High treatments. Hydrogen (H<sub>2</sub>) yield (g H<sub>2</sub>/DMI) increased (<em>P</em> &lt;0.01) 336 and 590% compared to Control for the Low and High treatments, respectively. Carbon dioxide (CO<sub>2</sub>) yield (g CO<sub>2</sub>/DMI) increased 13.7% between Control and High treatments (P = 0.03). No differences were found in ADG, carcass quality, strip loin proximate analysis and shear force, or consumer taste preferences. DMI tended to decrease 8% (<em>P</em> = 0.08) in the Low treatment and DMI decreased 14% (<em>P</em> &lt;0.01) in the High treatment. Conversely, FCE tended to increase 7% in Low (<em>P</em> = 0.06) and increased 14% in High (<em>P</em> &lt;0.01) treatment compared to Control. The persistent reduction of CH<sub>4</sub> by <em>A</em>. <em>taxiformis</em> supplementation suggests that this is a viable feed additive to significantly decrease the carbon footprint of ruminant livestock and potentially increase production efficiency.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Red seaweed (<i>Asparagopsis taxiformis</i>) supplementation reduces enteric methane by over 80 percent in beef steers","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2021,"MonPub":null,"DateUpdate":"2021-12-21","DateCreate":"2021-12-21","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000630345000014","VABBcode":null,"OpenAcc":1,"DOI":"10.1371/journal.pone.0247820"},"refs":null,"anarec":{"AnaID":348419,"PubliDate":2021,"Pagination":"e0247820","XtraPublOfAnaID":null,"ISBN":null,"Volume":"16","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":123954,"SerRR":"PLoS One. 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