Strategies Used to Reduce Methane Emissions from Ruminants: Controversies and Issues

Agriculture, Journal Year: 2023, Volume and Issue: 13(3), P. 602 - 602

Published: March 1, 2023

Methanogenesis plays a crucial role in the digestive process of ruminant animals. During this process, methanogenic archaea produce methane as byproduct their metabolism. However, production by ruminants is also significant contributor to greenhouse gas emissions. Methane potent that has 28-fold greater global warming potential than carbon dioxide. Around 15% all anthropogenic emissions are generated livestock. Therefore, reducing from livestock an important goal for environmental impact agriculture. There variety strategies can be used reduce emissions, including dietary modifications, genetic selection, microbiome manipulation, and feed additives, such plant secondary metabolites, inhibitors, lipids, essential oils, algae. The main objective paper critically discuss current proposed Though many strategies, chemical intervention, have remarkably reduced ruminants, usage remains unappealing because health safety concerns well consumer decisions. Hence, animal selection biological probiotics emerged promising techniques mitigating enteric These highly promising, but more intensive research needed validate these approaches assess effectiveness ruminants.

Language: Английский

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Global Warming and Dairy Cattle: How to Control and Reduce Methane Emission

Animals, Journal Year: 2022, Volume and Issue: 12(19), P. 2687 - 2687

Published: Oct. 6, 2022

Agriculture produces greenhouse gases. Methane is a result of manure degradation and microbial fermentation in the rumen. Reduced CH4 emissions will slow climate change reduce gas concentrations. This review compiled studies to evaluate best ways decrease methane emissions. Longer rumination times milk methane. Other have not found this. Increasing propionate reducing acetate butyrate rumen can hydrogen equivalents that would otherwise be transferred methanogenesis. Diet Grain lowers pH, increases production, decreases yield. generation per unit energy-corrected yield reduces with higher-energy diet. Bioactive bromoform discovered red seaweed Asparagopsis taxiformis livestock intestinal output by inhibiting its production. Essential oils, tannins, saponins, flavonoids are anti-methanogenic. While it true plant extracts assist emissions, crucial remember source produce plants sustainable manner. Minimal lipid supplementation 20%, increasing energy density animal productivity. Selecting low- cows may lower GHG These findings lead additional research completely understand impacts methanogenesis suppression on post-absorptive metabolism, which could improve productivity efficiency.

Language: Английский

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Enteric methane mitigation interventions

Translational Animal Science, Journal Year: 2022, Volume and Issue: 6(2)

Published: April 1, 2022

Mitigation of enteric methane (CH4) presents a feasible approach to curbing agriculture's contribution climate change. One intervention for reduction is dietary reformulation, which manipulates the composition feedstuffs in ruminant diets redirect fermentation processes toward low CH4 emissions. Examples include reducing relative proportion forages concentrates, determining rate digestibility and passage from rumen, lipid inclusion. Feed additives present another abatement are classified based on their mode action. Through inhibition key enzymes, 3-nitrooxypropanol (3-NOP) halogenated compounds directly target methanogenesis pathway. Rumen environment modifiers, including nitrates, essential oils, tannins, act conditions that affect methanogens remove accessibility products needed formation. Low CH4-emitting animals can also be or indirectly selected through breeding interventions, genome-wide association studies expected provide efficient selection decisions. Overall, reformulation feed additive inclusion immediate reversible effects, while selective produces lasting, cumulative emission reductions.

Language: Английский

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Environmental performance of seaweed cultivation and use in different industries: A systematic review

Sustainable Production and Consumption, Journal Year: 2024, Volume and Issue: 48, P. 123 - 142

Published: May 13, 2024

This study provides a comprehensive review of the environmental impacts associated with seaweed cultivation and utilization in various industries, focusing on life cycle assessment (LCA) studies. There is remarkable disparity distribution LCA Asia produces 97 % global seaweed, but accounts for only 25 research. In contrast, Europe, which 0.8 production, responsible 70 Current practices result low emissions 0.02–0.08 CO2-equivalents (CO2 eq)/kg wet seaweed. Cultivation may yield climate benefits if biogenic carbon uptake sequestration are considered. However, stability stored requires further Seaweeds have significant potential sectors, including bioenergy, food, feed, fertilizer, nanomaterials, construction, cosmetics, supporting circular bioeconomy. hotspots include energy use drying, fuel transport, infrastructure processing phase. Various mitigation strategies recirculation by-products, extending life, recycling infrastructure, using biodegradable materials, adopting renewable optimizing productivity content valuable ingredients, refining system design resource efficiency, developing biorefineries, investigating alternative species. The diverse functional units used LCAs limit comparisons between Challenges research lack standardized methodologies varied production systems, local ecosystems, data limitations, often to terrestrial alternatives. Seaweed has promote sustainability certain sectors. needed optimize seaweeds as sustainable resource.

Language: Английский

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Invited review: Advances in nutrition and feed additives to mitigate enteric methane emissions

Journal of Dairy Science, Journal Year: 2024, Volume and Issue: 107(7), P. 4129 - 4146

Published: June 26, 2024

Methane, both enteric and from manure management, is the most important greenhouse gas ruminant livestock, its mitigation can deliver substantial decreases in carbon footprint of animal products potentially contribute to climate change mitigation. Although choices may be limited, certain feeding-related practices substantially decrease livestock CH4 emission. These generally classified into 2 categories: diet manipulation feed additives. Within first category, selection forages increasing forage digestibility are likely emission, but size effect, relative current United States dairy industry, minimal moderate. An opportunity also exists emissions by dietary starch concentration, interventions have weighed against potential milk fat yield farm profitability. A similar conclusion made about lipids oilseeds, which proven emission a negative effect on rumen fermentation, intake, production composition. Sufficient robust scientific evidence indicates that some additives, specifically inhibitor 3-nitrooxypropanol, reduce beef cattle. However, long-term effects external factors affecting efficacy need further studied. The practicality mass-application other with short-term (i.e., macroalgae) currently unknown. One area needs more research how nutritional (both additives) interact each whether there synergism among additives different mode action. Further, composition during storage (e.g., trade-offs) not been adequately Overall, if available prove consistent results novel, potent, safe strategies discovered practical, nutrition alone up 60% reduction farms States.

Language: Английский

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The effect of Rumin8 Investigational Veterinary Product – a bromoform based feed additive – on enteric methane emissions, animal production parameters, and the rumen environment in feedlot cattle

Translational Animal Science, Journal Year: 2025, Volume and Issue: 9

Published: Jan. 1, 2025

Abstract The livestock sector plays a crucial role in mitigating global climate change by reducing greenhouse gas emissions, with enteric fermentation as the largest source. Although various approaches have been proposed to decrease methane (CH4) feed additives containing bromoform (CHBr3) shown promise minimal impact on animal production parameters. This study aimed evaluate effects of two Rumin8 Investigational Veterinary Products (IVP) synthetic CHBr3 parameters, and rumen environment. Twenty-four Angus beef steers were randomly assigned one three treatment groups: Control, Oil (8 mL oil IVP/kg DMI), Powder (1.2 g powder DMI). IVP resulted intake 32.2 mg/kg DMI, while provided 2.0 DMI during weeks 1–8. In week 9, new batch increased 17.9 DMI. group exhibited 95.0%, 96.1% reductions CH4 (g/day), yield (g/kg intensity average daily gain), respectively, accompanied 925%, 934%, 858% increases H2 production, yield, intensity, respectively. Neither significantly affected parameters or environment variables. These findings suggest that has potential reduce emissions. warrants further investigation, this is first published vivo assess compound efficacy.

Language: Английский

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Green extraction and esterification of marine polysaccharide (ulvan) from green macroalgae Ulva sp. using citric acid for hydrogel preparation

Journal of Cleaner Production, Journal Year: 2022, Volume and Issue: 366, P. 132952 - 132952

Published: June 29, 2022

Language: Английский

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Enteric methane mitigation through Asparagopsis taxiformis supplementation and potential algal alternatives

Frontiers in Animal Science, Journal Year: 2022, Volume and Issue: 3

Published: Oct. 3, 2022

Research is increasingly directed towards decreasing the greenhouse gases contribution, specifically methane, from livestock agriculture sector. Macroalgae supplementation has emerged as a promising tool to mitigate enteric methane emission in ruminants. The mode of action responsible for mitigation effect centers around content volatile halogenated compounds, primarily bromoform. sub-tropical red seaweed, Asparagopsis taxiformis , most well researched bromoform containing species. While several studies, both vitro and vivo have demonstrated effectiveness A. at reducing (> 80% reduction), questions surrounding sustainability, animal productivity, product quality, commercial practicality remain. These by no means disqualify practice feeding macroalgae cattle reduce emission, but they must be answered before implementing feed additive commercially. Also, limiting scientific inquiry few species reduces potential discovering other compounds modes that could produce desired without inherit drawbacks current options. Work conducted ruminant nutrition human health fields identified numerous bioactive within plants exhibit anti-microbial functions modify rumen microbiome beneficial outcomes. are also found macroalgae. Phlorotannins, saponins, sulfonated glycans, halocarbons bacteriocins antimicrobial activity . However, it unclear what these may when used Once identified, extracting lieu entire plant more practical solution. Dietary inclusion levels diets can limited variation active ingredient concentration, palatability cattle, excessive dietary mineral content. There multiple studies reduction non-bromoform species, often above effective (< 0.5% dry matter). In some led decreased matter intake productivity elevated accumulation, such iodine, products. Therefore, will likely occur low concentrations practical. This review aims highlight benefits challenges on production, environment, consumer health.

Language: Английский

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Feed additives for methane mitigation: Assessment of feed additives as a strategy to mitigate enteric methane from ruminants—Accounting; How to quantify the mitigating potential of using antimethanogenic feed additives

Journal of Dairy Science, Journal Year: 2024, Volume and Issue: 108(1), P. 411 - 429

Published: Dec. 24, 2024

Language: Английский

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Anti-methanogenic potential of seaweeds and seaweed-derived compounds in ruminant feed: current perspectives, risks and future prospects

Journal of Animal Science and Biotechnology/Journal of animal science and biotechnology, Journal Year: 2023, Volume and Issue: 14(1)

Published: Dec. 2, 2023

Abstract With methane emissions from ruminant agriculture contributing 17% of total worldwide, there is increasing urgency to develop strategies reduce greenhouse gas in this sector. One the proposed feed intervention studies focused on inclusion anti-methanogenic compounds which are those capable interacting with rumen microbiome, reducing capacity ruminal microorganisms produce methane. Recently, seaweeds have been investigated for their ability ruminants vitro and vivo, greatest abatement reported when using red seaweed Asparagopsis taxiformis (attributed bromoform content species). From literature analysis study, levels up 99% reduction animal feed, although further vivo microbiome required confirm these results as other reports showed no effect emission resulting basal feed. This review explores current state research aiming integrate additives, well examining specific bioactive within that likely be related effects. The effects also reviewed, future challenges considering large-scale into diets agents.

Language: Английский

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