Microbial composition, rumen fermentation parameters, enteric methane emissions, and lactational performance of phenotypically high and low methane-emitting dairy cows

Stepanchenko, Nadiia; Stefenoni, H.; Hennessy, Meagan L.; Nagaraju, I.; Wasson, D.E.; Cueva, S.F.; Räisänen, S.E.; Dechow, C.D.; Pitta, Dipti; Hristov, A.N.

doi:10.3168/jds.2022-23190

Cited by 16 publications

(6 citation statements)

References 49 publications

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“…Their various proportions decreased methanogenesis by 50–96%, and the extent of inhibition increased with increasing amounts of C12 in the mixture. However, in our study, NT + C12/C14 decreased methanogenesis by much less in comparison with the study of Soliva et al 36 The lower efficiency of our binary combination may be attributed to the higher concentration used in their study (1000 mg/L vs. 500 mg/L in our study). Another reason could be the C12/C14 ratio.…”

Section: Discussioncontrasting

confidence: 94%

“…Another reason could be the C12/C14 ratio. CH 4 production was not as inhibited in our study as it was in the study of Soliva et al 36 , where CH 4 production progressively decreased with an increasing proportion of C12 in the mixture. We assessed a 1:1 ratio, whereas the most effective ratio reported by Soliva et al 36 was 2:1 or higher.…”

Section: Discussioncontrasting

confidence: 51%

“…The fact that binary combinations of MCFA might be effective anti-methanogenic additives was demonstrated by Soliva et al 36 In their study, C12 and C14 exhibited synergistic CH 4 suppression effects. Their various proportions decreased methanogenesis by 50–96%, and the extent of inhibition increased with increasing amounts of C12 in the mixture.…”

Section: Discussionmentioning

confidence: 81%

“…By combining low doses of NT and MCFA, we confirmed our hypotheses that (1) individual combinations varied in their CH 4 mitigating efficacy and (2) there was one superior treatment (NT + C10) that decreased methanogenesis the most without negative effects on fermentation. In addition, the microbial community shifted to resemble the rumen microbiota of low-CH 4 emitting cattle, with low Ruminococcaceae 33 , 34 (e.g., 4.3% 33 ), and high Succinivibrionaceae 35 (e.g., 8.9–9.3% 36 , 37 ).…”

Section: Discussionmentioning

confidence: 99%

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Combined effects of nitrate and medium-chain fatty acids on methane production, rumen fermentation, and rumen bacterial populations in vitro

Vadroňová,

Šťovíček,

Jochová

et al. 2023

Sci Rep

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This study investigated the combined effects of nitrate (NT) and medium-chain fatty acids (MCFA), including C8, C10, C12, and C14, on methane (CH4) production, rumen fermentation characteristics, and rumen bacteria using a 24 h batch incubation technique. Four types of treatments were used: control (no nitrate, no MCFA), NT (nitrate at 3.65 mM), NT + MCFA (nitrate at 3.65 mM + one of the four MCFA at 500 mg/L), and NT + MCFA/MCFA (nitrate at 3.65 mM + a binary combination of MCFA at 250 and 250 mg/L). All treatments decreased (P < 0.001) methanogenesis (mL/g dry matter incubated) compared with the control, but their efficiency was dependent on the MCFA type. The most efficient CH4 inhibitor was the NT + C10 treatment (− 40%). The combinations containing C10 and C12 had the greatest effect on bacterial alpha and beta diversity and relative microbial abundance (P < 0.001). Next-generation sequencing showed that the family Succinivibrionaceae was favored in treatments with the greatest CH4 inhibition at the expense of Prevotella and Ruminococcaceae. Furthermore, the relative abundance of Archaea decreased (P < 0.05) in the NT + C10 and NT + C10/C12 treatments. These results confirm that the combination of NT with MCFA (C10 and C12 in particular) may effectively reduce CH4 production.

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Section: Discussioncontrasting

confidence: 94%

Section: Discussioncontrasting

confidence: 51%

Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 99%

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Combined effects of nitrate and medium-chain fatty acids on methane production, rumen fermentation, and rumen bacterial populations in vitro

Vadroňová,

Šťovíček,

Jochová

et al. 2023

Sci Rep

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“…Hence, opting for animals with low CH 4 emissions is a robust strategy to mitigate CH 4 , since genetic advancements are enduring and accumulate throughout successive generations [ 96 ]. There has been a recent surge in interest in choosing animals that have a lower intestinal CH 4 yield phenotype [ 97 ]. While management and food solutions have been thoroughly studied, genetics offers the advantage of having additive and irreversible effects of selection [ 22 ].…”

Section: Heritabilitymentioning

confidence: 99%

Relationship between Dairy Cow Health and Intensity of Greenhouse Gas Emissions

Džermeikaitė,

Krištolaitytė,

Antanaitis

2024

Animals

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The dairy industry is facing criticism for its role in exacerbating global GHG emissions, as climate change becomes an increasingly pressing issue. These emissions mostly originate from methane (CH4), nitrous oxide (N2O), and carbon dioxide (CO2). An optimal strategy involves the creation of an economical monitoring device to evaluate methane emissions from dairy animals. Livestock production systems encounter difficulties because of escalating food demand and environmental concerns. Enhancing animal productivity via nutrition, feeding management, reproduction, or genetics can result in a decrease in CH4 emissions per unit of meat or milk. This CH4 unit approach allows for a more accurate comparison of emissions across different animal production systems, considering variations in productivity. Expressing methane emissions per unit allows for easier comparison between different sources of emissions. Expressing emissions per unit (e.g., per cow) highlights the relative impact of these sources on the environment. By quantifying emissions on a per unit basis, it becomes easier to identify high-emission sources and target mitigation efforts accordingly. Many environmental policies and regulations focus on reducing emissions per unit of activity or output. By focusing on emissions per unit, policymakers and producers can work together to implement practices that lower emissions without sacrificing productivity. Expressing methane emissions in this way aligns with policy goals aimed at curbing overall greenhouse gas emissions. While it is true that total emissions affect the atmosphere globally, breaking down emissions per unit helps to understand the specific contributions of different activities and sectors to overall greenhouse gas emissions. Tackling cattle health issues can increase productivity, reduce GHG emissions, and improve animal welfare. Addressing livestock health issues can also provide favourable impacts on human health by reducing the prevalence of infectious illnesses in livestock, thereby mitigating the likelihood of zoonotic infections transmitting to humans. The progress in animal health offers the potential for a future in which the likelihood of animal diseases is reduced because of improved immunity, more effective preventative techniques, earlier identification, and innovative treatments. The primary objective of veterinary medicine is to eradicate clinical infectious diseases in small groups of animals. However, as the animal population grows, the emphasis shifts towards proactive treatment to tackle subclinical diseases and enhance production. Proactive treatment encompasses the consistent monitoring and implementation of preventive measures, such as vaccination and adherence to appropriate nutrition. Through the implementation of these measures, the livestock industry may enhance both animal well-being and mitigate the release of methane and nitrous oxide, thereby fostering environmental sustainability. In addition, advocating for sustainable farming methods and providing farmers with education on the significance of mitigating GHG emissions can bolster the industry’s endeavours to tackle climate change and infectious illnesses. This will result in a more robust and environmentally sustainable agriculture industry. This review seeks to conduct a thorough examination of the correlation between the health condition of cattle, the composition of milk produced, and the emissions of methane gas. It aims to identify areas where research is lacking and to provide guidance for future scientific investigations, policy making, and industry practices. The goal is to address the difficulties associated with methane emissions in the cattle industry. The primary global health challenge is to identify the causative relationship between climate change and infectious illnesses. Reducing CH4 and N2O emissions from digestive fermentation and animal manure can be achieved by improving animal well-being and limiting disease and mortality.

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Agriculture, Forestry, and Other Land Use Sector Emissions

Küfeoğlu

2024

Sustainable Development Goals Series

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Microbial composition, rumen fermentation parameters, enteric methane emissions, and lactational performance of phenotypically high and low methane-emitting dairy cows

Cited by 16 publications

References 49 publications

Combined effects of nitrate and medium-chain fatty acids on methane production, rumen fermentation, and rumen bacterial populations in vitro

Combined effects of nitrate and medium-chain fatty acids on methane production, rumen fermentation, and rumen bacterial populations in vitro

Relationship between Dairy Cow Health and Intensity of Greenhouse Gas Emissions

Agriculture, Forestry, and Other Land Use Sector Emissions

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