Enteric methane emissions by young Brahman bulls grazing tropical pastures at different rainfall seasons in the Peruvian jungle

Díaz-Céspedes, Medardo; Hernández-Guevara, José Eduard; Gómez, Carlos A.

doi:10.1007/s11250-021-02871-4

Cited by 3 publications

(2 citation statements)

References 52 publications

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“…In recent years, studies have been conducted in Peru to measure enteric CH 4 emissions with camelids or cattle [ 21 , 23 , 32 , 33 ] and although their results vary, all authors agree on the relationship between CH 4 emissions and nutritional compounds such as fiber, which can be significantly affected in the dry season [ 34 ]. These in vivo results are not different from those obtained in this experiment conducted under controlled conditions, where 7 of the 8 species evaluated showed higher CH 4 production during the dry season.…”

Section: Discussionmentioning

confidence: 99%

Relationship between Chemical Composition and In Vitro Methane Production of High Andean Grasses

Velasquez

Molina-Botero

Muñoz

et al. 2022

Animals

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The present study aims to establish the relationship between chemical composition and in vitro methane (CH4) production of high Andean grasses. For this purpose, eight species were collected in dry and rainy seasons: Alchemilla pinnata, Distichia muscoides, Carex ecuadorica, Hipochoeris taraxacoides, Mulhenbergia fastigiata, Mulhenbergia peruviana, Stipa brachiphylla and Stipa mucronata. They were chemically analyzed and incubated under an in vitro system. Species such as A. pinnata and H. taraxacoides were characterized by high crude protein (CP. 124 g/kg DM) and low neutral detergent fiber (NDF. 293 g/kg DM) contents in both seasons, contrary to Stipa grasses. This same pattern was obtained for H. taraxacoides, which presented the highest values of gas production, organic matter digestibility (DOM), metabolizable energy (ME) and CH4 production (241 mL/g DM, 59% DOM, 8.4 MJ ME/kg DM and 37.7 mL CH4/g DM, on average). For most species, the content of CP, acid detergent fiber (FDA) and ME was higher in the rainy season than in the dry season, which was the opposite for CH4 production (p ≥ 0.05). In general, the nutritional content that most explained the behavior of CH4 production was the NDF content (R2 = 0.69). Grasses characterized by high NDF content produced less CH4 (R = −0.85).

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Section: Discussionmentioning

confidence: 99%

Relationship between Chemical Composition and In Vitro Methane Production of High Andean Grasses

Velasquez

Molina-Botero

Muñoz

et al. 2022

Animals

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“…Ruminants, as ancient animals, exhibit a wide range of morphological and ecological diversity ( Mennecart et al, 2021 ). They have adapted to diverse habitats, from tropical jungles ( Díaz-Céspedes et al, 2021 ) to the plateau ( Guo et al, 2020 ); range in size from 2 kg ( Pickford, 2001 ) to 1.5 tons ( Sauer et al, 2016 ); show great variations in diet, feeding on objects ranging from moss ( Ihl and Barboza, 2007 ) to ordinary standard feed ( Li et al, 2019 ); and have adapted to almost all ecosystems on Earth. Ruminants are distinguished by their plant digestion patterns and have evolved the rumen.…”

Section: Introductionmentioning

confidence: 99%

Combined network analysis and interpretable machine learning reveals the environmental adaptations of more than 10,000 ruminant microbial genomes

Yan,

Shi,

Bao

et al. 2023

Front. Microbiol.

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BackgroundThe ruminant gastrointestinal contains numerous microbiomes that serve a crucial role in sustaining the host’s productivity and health. In recent times, numerous studies have revealed that variations in influencing factors, including the environment, diet, and host, contribute to the shaping of gastrointestinal microbial adaptation to specific states. Therefore, understanding how host and environmental factors affect gastrointestinal microbes will help to improve the sustainability of ruminant production systems.ResultsBased on a graphical analysis perspective, this study elucidates the microbial topology and robustness of the gastrointestinal of different ruminant species, showing that the microbial network is more resistant to random attacks. The risk of transmission of high-risk metagenome-assembled genome (MAG) was also demonstrated based on a large-scale survey of the distribution of antibiotic resistance genes (ARG) in the microbiota of most types of ecosystems. In addition, an interpretable machine learning framework was developed to study the complex, high-dimensional data of the gastrointestinal microbial genome. The evolution of gastrointestinal microbial adaptations to the environment in ruminants were analyzed and the adaptability changes of microorganisms to different altitudes were identified, including microbial transcriptional repair.ConclusionOur findings indicate that the environment has an impact on the functional features of microbiomes in ruminant. The findings provide a new insight for the future development of microbial resources for the sustainable development in agriculture.

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Bamboo forage in Peruvian Amazon: a potential feed for cattle

Altamirano-Gutiérrez,

Molina-Botero,

Fuentes-Navarro

et al. 2023

Trop Anim Health Prod

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Enteric methane emissions by young Brahman bulls grazing tropical pastures at different rainfall seasons in the Peruvian jungle

Cited by 3 publications

References 52 publications

Relationship between Chemical Composition and In Vitro Methane Production of High Andean Grasses

Relationship between Chemical Composition and In Vitro Methane Production of High Andean Grasses

Combined network analysis and interpretable machine learning reveals the environmental adaptations of more than 10,000 ruminant microbial genomes

Bamboo forage in Peruvian Amazon: a potential feed for cattle

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