Mitigating the carbon footprint and improving productivity of ruminant livestock agriculture using a red seaweed

Kinley, Robert D.; Fernández, Gonzalo Martínez; Matthews, Melissa K.; Nys, Rocky de; Magnusson, Marie; Tomkins, Nigel

doi:10.1016/j.jclepro.2020.120836

Cited by 254 publications

(311 citation statements)

References 38 publications

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“…Increases in H2 yield have typically been recorded when anti-methanogenic feed additives are used, and with the addition of Asparagopsis species in dairy cattle (1.25 to 3.75 fold; Roque et al, 2019b) and Brangus feedlot steers (3.8-17.0 fold; Kinley et al, 2020). Similar increases in H2 yield have been reported in feed additives that reduce enteric CH4 emissions targeting methanogens.…”

Section: Enteric Hydrogen and Carbon Dioxide Emissionsmentioning

confidence: 63%

“…( Figure 3). Notably, until this study the longest exposure to A. taxiformis had been demonstrated for steers in a study ending after a 90-d finishing period (Kinley et al 2020). To date, only three in vivo studies have been published using Asparagopsis spp to reduce enteric CH4 emissions in sheep (Li et al 2018), lactating dairy cattle (Roque et al, 2019b), and feedlot Brangus steers (Kinley et al, 2020).…”

Section: Enteric Methane Production and Yieldmentioning

confidence: 96%

“…(2019b) compared to 7.82 mg/g in the current study. Kinley et al (2020) conducted an in vivo study focused on feedlot steers using the same collection of A. taxiformis as sub-sampled and used in this study. This seaweed had bromoform concentration of 6.55 mg/g, which was marginally lower than our study and may be due to variation in the collection, sampling or analysis techniques.…”

Section: Enteric Methane Production and Yieldmentioning

confidence: 99%

“…taxiformis on OM basis, the CH4 yield was reduced by up to 98% in Brangus feedlot steers. The diet used by Kinley et al (2020) included 30.6% NDF, which was similar to our high fiber diet.…”

Section: Enteric Methane Production and Yieldmentioning

confidence: 99%

“…For example, Roque et al (2019b) tested the effects of the seaweed A. armata (1.3 mg bromoform/g DM) in vivo fed to dairy cattle for a two week duration and reported up to 67% reduction of enteric CH4 production using a 1% seaweed inclusion rate on organic matter (OM) basis in a total mixed ration (TMR). Kinley et al (2020) reported up to 98% CH4 reduction using 0.2% of OM inclusion of A. taxiformis (6.6 mg bromoform/g DM) during a 90-day feeding regime typical of feedlot TMR. These studies confirm that seaweed quality measured as concentration of bioactive at feeding and the basal diet formulation have an impact on the efficacy of the seaweed, and that there is heightened response in vivo compared to in vitro.…”

mentioning

confidence: 99%

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Red seaweed (Asparagopsis taxiformis)supplementation reduces enteric methane by over 80 percent in beef steers

Roque

Venegas

Kinley³

et al. 2020

Preprint

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The red macroalgae (seaweed) Asparagopsis spp. has shown to reduce ruminant enteric methane (CH4) production up to 99% in vitro. The objective of this study was to determine the effect of Asparagopsis taxiformis on CH4 production (g/day per animal), CH4 yield (g CH4/kg dry matter intake (DMI)), average daily gain (ADG), feed conversion efficiency (FCE), 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 Dose; LD), and 0.5% (High Dose; HD) A. taxiformis inclusion based on organic matter intake. Steers were fed 3 diets: high, medium, and low forage total mixed ration (TMR) representing typical life-stage diets of growing beef steers. The LD and HD treatments over 147 days reduced enteric CH4 yield 45 and 68%, respectively; however, there was an interaction between TMR type and the magnitude of CH4 yield reduction. Supplementing the low forage TMR reduced CH4 yield 69.8% (P <0.001) for LD and 80% (P <0.001) for HD treatment. Hydrogen (H2) yield (g H2/DMI) increased significantly (P<0.001) 336 and 590% compared to Control for the LD and HD treatments, respectively. No differences were found in carbon dioxide (CO2) yield (g CO2/DMI), ADG, carcass quality, strip loin proximate analysis and shear force, or consumer taste preferences. DMI tended (P = 0.08) to decrease 8% in steers in LD treatment but significantly (P = 0.002) reduced 14% in steers in HD treatment. Conversely, FCE tended to increase 7% in steers in LD treatment (P = 0.06) and increased 14% in steers in HD (P < 0.01) treatment compared to Control. The persistent reduction of CH4 by A. taxiformis supplementation suggests that this is a viable feed additive to significantly decrease the carbon footprint of ruminant livestock and potentially increase production efficiency.

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Section: Enteric Hydrogen and Carbon Dioxide Emissionsmentioning

confidence: 63%

Section: Enteric Methane Production and Yieldmentioning

confidence: 96%

Section: Enteric Methane Production and Yieldmentioning

confidence: 99%

Section: Enteric Methane Production and Yieldmentioning

confidence: 99%

mentioning

confidence: 99%

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Red seaweed (Asparagopsis taxiformis)supplementation reduces enteric methane by over 80 percent in beef steers

Roque

Venegas

Kinley³

et al. 2020

Preprint

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Potential of Seaweeds to Mitigate Production of Greenhouse Gases during Production of Ruminant Proteins

Bhowmick

Hayes

2023

Global Challenges

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The potential of seaweed to mitigate methane is real and studies with red seaweeds have found reductions in methane produced from ruminants fed red seaweeds in the region of 60–90% where the active compound responsible for this is bromoform. Other studies with brown and green seaweeds have observed reductions in methane production of between 20 and 45% in vitro and 10% in vivo. Benefits of feeding seaweeds to ruminants are seaweed specific and animal species‐dependent. In some instances, positive effects on milk production and performance are observed where selected seaweeds are fed to ruminants while other studies note reductions in performance traits. A balance between reducing methane and maintaining animal health and food quality is necessary. Seaweeds are a source of essential amino acids and minerals however, and offer huge potential for use as feeds for animal health maintenance once formulations and doses are correctly prepared and administered. A negative aspect of seaweed use for animal feed currently is the cost associated with wild harvest and indeed aquaculture production and improvements must be made here if seaweed ingredients are to be used as a solution to control methane production from ruminants for continued production of animal/ruminant sourced proteins in the future. This review collates information concerning different seaweeds and how they and their constituents can reduce methane from ruminants and ensure sustainable production of ruminant proteins in an environmentally beneficial manner.

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Marine macroalgae as a feasible and complete resource to address and promote Sustainable Development Goals (SDGs)

García-Poza

Pacheco

Cotas

et al. 2022

Integr Envir Assess & Manag

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Because the world's population is increasing, science‐based policies are needed to promote sustainable global development. It is important to maintain and restore the environment and help human society overcome the risks from industrialization and unsustainable exponential growth. In recent years, many studies have highlighted that macroalgae represent a key marine resource for ecological and sustainable living, thus helping to address today's global problems, such as water pollution, ocean acidification, and global warming. Macroalgae show the potential to provide innovative, ecofriendly, and nutritious food sources and natural compounds for various industries, such as biomedical, food, agricultural, and pharmaceutical industries. This review discusses how macroalgae can help us today and how they can promote a more sustainable way of life in the future. It also discusses the potential danger for ecosystems and the global population if these organisms are not part of the solution but part of the problem. Integr Environ Assess Manag 2022;18:1148–1161. © 2022 SETAC

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Mitigating the carbon footprint and improving productivity of ruminant livestock agriculture using a red seaweed

Cited by 254 publications

References 38 publications

Red seaweed (Asparagopsis taxiformis)supplementation reduces enteric methane by over 80 percent in beef steers

Red seaweed (Asparagopsis taxiformis)supplementation reduces enteric methane by over 80 percent in beef steers

Potential of Seaweeds to Mitigate Production of Greenhouse Gases during Production of Ruminant Proteins

Marine macroalgae as a feasible and complete resource to address and promote Sustainable Development Goals (SDGs)

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