Environmental impact of yeast and exogenous xylanase on mitigating carbon dioxide and enteric methane production in ruminants

Vallejo-Hernández, Laura Haydée; Elghandour, Mona M.Y.; Greiner, Ralf; Anele, U.Y.; Rivas-Cáceres, Raymundo Rene; Barros-Rodríguez, Marcos; Salem, Abdelfattah Z.M.

doi:10.1016/j.jclepro.2018.03.310

Cited by 31 publications

(30 citation statements)

References 43 publications

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“…Variable response in VFA production with the addition of yeast culture is a consequence of yeast culture’s effect on the growth of different species of rumen microbes. Vallejo‐Hernández et al () observed that metabolizable energy and VFA concentrations were greater when 4 mg of S. cerevisiae were supplemented to goat and sheep inocula. Supplementation of 5 g of yeast per day in dairy cows improved VFA production by 9·65% after 30 days and 2% after 60 days (Doleźal et al ).…”

Section: Impact Of Feeding Single‐cell Fungi On Rumen Fermentation Acmentioning

confidence: 99%

“…). Methane production was reduced in the presence of 4 mg of S. cerevisiae and can be used in an environmentally friendly and sustainable way to reduce biogas emissions from livestock; thereby improving environmental conditions (Vallejo‐Hernández et al ).…”

Section: Impact Of Feeding Single‐cell Fungi On Rumen Fermentation Acmentioning

confidence: 99%

“…Hassan et al () reported that supplementation with 2·5 and 5 g of yeast/calf increased digestion of ADF and NDF. In addition, the inclusion of 4 mg of S. cerevisiae resulted in increased dry matter degradability in sheep and steer inocula and increased degradation of organic matter in goat and sheep inocula (Vallejo‐Hernández et al ). Vyas et al () reported that an increase in fibre digestibility is normally associated with an increase in fibre degrading bacteria population.…”

Section: Impact Of Feeding Single‐cell Fungi On Rumen Fermentation Acmentioning

confidence: 99%

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Dynamic role of single‐celled fungi in ruminal microbial ecology and activities

Elghandour

Khusro²,

Adegbeye

et al. 2019

J Appl Microbiol

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Summary In ruminants, high fermentation capacity is necessary to develop more efficient ruminant production systems. Greater level of production depends on the ability of the microbial ecosystem to convert organic matter into precursors of milk and meat. This has led to increased interest by animal nutritionists, biochemists and microbiologists in evaluating different strategies to manipulate the rumen biota to improve animal performance, production efficiency and animal health. One of such strategies is the use of natural feed additives such as single‐celled fungi yeast. The main objectives of using yeasts as natural additives in ruminant diets include; (i) to prevent rumen microflora disorders, (ii) to improve and sustain higher production of milk and meat, (iii) to reduce rumen acidosis and bloat which adversely affect animal health and performance, (iv) to decrease the risk of ruminant‐associated human pathogens and (v) to reduce the excretion of nitrogenous‐based compounds, carbon dioxide and methane. Yeast, a natural feed additive, has the potential to enhance feed degradation by increasing the concentration of volatile fatty acids during fermentation processes. In addition, microbial growth in the rumen is enhanced in the presence of yeast leading to the delivery of a greater amount of microbial protein to the duodenum and high nitrogen retention. Single‐celled fungi yeast has demonstrated its ability to increase fibre digestibility and lower faecal output of organic matter due to improved digestion of organic matter, which subsequently improves animal productivity. Yeast also has the ability to alter the fermentation process in the rumen in a way that reduces methane formation. Furthermore, yeast inclusion in ruminant diets has been reported to decrease toxins absorption such as mycotoxins and promote epithelial cell integrity. This review article provides information on the impact of single‐celled fungi yeast as a feed supplement on ruminal microbiota and its function to improve the health and productive longevity of ruminants.

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Section: Impact Of Feeding Single‐cell Fungi On Rumen Fermentation Acmentioning

confidence: 99%

Section: Impact Of Feeding Single‐cell Fungi On Rumen Fermentation Acmentioning

confidence: 99%

Section: Impact Of Feeding Single‐cell Fungi On Rumen Fermentation Acmentioning

confidence: 99%

See 1 more Smart Citation

Dynamic role of single‐celled fungi in ruminal microbial ecology and activities

Elghandour

Khusro²,

Adegbeye

et al. 2019

J Appl Microbiol

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“…Grande atenção tem sido dada nas últimas décadas a utilização de EFE, com o objetivo de melhorar a degradação da parede celular vegetal e aumentar a produtividade da cadeia produtora de carne e leite, como descritos em algumas revisões e meta-análises e visando reduzir os impactos ambientais e aumentar a sustentabilidade da cadeia produtora de ruminantes (GADO et al, 2017;VALLEJO-HERNÁNDEZ et al, 2018).…”

Section: Utilização De Enzimas Fibrolíticas Exógenas Para Incrementounclassified

“…Mais recentemente, pesquisas in vitro foram desenvolvidas avaliando a adição das EFE em diferentes substratos sobre a produção de gases, parâmetros fermentativos, degradabilidade da fração fibrosa e utilização dos nutrientes, visando aumento na produtividade animal assim como redução nos impactos ambientais causados pela produção agropecuária, promovendo maior sustentabilidade ao setor de ruminantes (DINESHKUMAR et al, 2014;GADO et al, 2017;VALLEJO-HERNÁNDEZ et al, 2018). GUPTA et al, 2016 .…”

Section: Utilização De Enzimas Fibrolíticas Exógenas Para Incrementounclassified

Produção de gases, fermentação ruminal e desempenho de ovinos suplementados com enzimas fibrolíticas

Sakita¹

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Quantifying non‐fibrous carbohydrates, acid detergent fiber and cellulose of forage through an in vitro gas production technique

et al. 2020

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BACKGROUND The in vitro gas production (GP) technique has been useful for evaluating the potential degradability of feedstuffs in ruminal environments; GP is related to the components of feedstuff ingredients. RESULTS Linear models were generated and validated as alternatives of quantifying neutral detergent‐soluble fiber, starch (St)/hemicellulose (Hem) and cellulose (Cel) through GP. Residuals of models obtained from the peaks of GP [0–8 h (GP‐8), > 8–24 h (GP‐24), > 24–48 h (GP‐48) and > 24–81 h (GP‐81)] of 0.02, 0.04, 0.08, 0.12 and 0.20 g of glucose (Glu), St and Cel respectively. The incubations were analyzed in mixtures of Glu, St and Cel. The best fitting models (r2 from 0.709 to 0.935) were tested on corn stover (CS) to quantify rapid fermentation fractions (RF; equivalent to Glu), medium fermentation fractions (MF; equivalent to St) and low fermentation fractions (LF48; equivalent to Cel); in CS, RF, MF and LF models had standardized residuals < 0.09. The analysis with Leucaena (Leucaena leucocephala Lam. de Wit) and star grass (Cynodon nlemfuensis Vanderyst) consider high‐protein ingredients. CONCLUSION The in vitro GP of RF, MF and LF48 fractions equivalent to Glu, St and Cel are affected by maturity and harvest time even when the chemical composition remains similar, and so RF, MF and LF48 should be considered during the design of ruminant diets. In vitro GP could be used to quantify the components of some forages, although further studies are necessary. © 2020 Society of Chemical Industry

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Environmental impact of yeast and exogenous xylanase on mitigating carbon dioxide and enteric methane production in ruminants

Cited by 31 publications

References 43 publications

Dynamic role of single‐celled fungi in ruminal microbial ecology and activities

Dynamic role of single‐celled fungi in ruminal microbial ecology and activities

Produção de gases, fermentação ruminal e desempenho de ovinos suplementados com enzimas fibrolíticas

Quantifying non‐fibrous carbohydrates, acid detergent fiber and cellulose of forage through an in vitro gas production technique

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