Environmental efficiency of Saccharomyces cerevisiae on methane production in dairy and beef cattle via a meta-analysis
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The objective of the present study is to examine the effect of yeast (Saccharomyces cerevisiae) on reduction of methane (CH4) production in dairy and beef cattle using meta-analytic methods. After compilation of relevant scientific publications available from the literature between 1990 and 2016, and applying exclusion and inclusion criteria, meta-analyses of data from dairy and beef cattle were applied for the pooled dataset or for each animal category (dairy or beef). The results of meta-analysis of all three datasets (all cattle, dairy cattle, or beef cattle) suggested that effect size of yeast either on daily CH4 production or on CH4 production per dry matter intake (CH4/DMI) was not significant. The results of Q test and I2 statistic suggest that there is no heterogeneity between different studies on CH4 production and CH4/DMI. The results of meta-analysis suggest that use of yeast (Saccharomyces cerevisiae) as feed additive does not offer significant results in terms of reduction of CH4 production in dairy and beef cattle. Further research on the effects of different doses of yeast, use of yeast products, different strains, and experimental designs is warranted to elucidate the effects of yeasts on methane production in the rumen.
KeywordsYeast Meta-analysis Methane Dairy cow Beef cattle
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Conflict of interest
The authors declare that they have no conflict of interest.
- Bayat A, Kairenius P, Stefański T, Leskinen H, Comtet-Marre S, Forano E, Chaucheyras-Durand F, Shingfield K (2015) Effect of camelina oil or live yeasts (Saccharomyces cerevisiae) on ruminal methane production, rumen fermentation, and milk fatty acid composition in lactating cows fed grass silage diets. J Dairy Sci 98:3166–3181CrossRefGoogle Scholar
- Borenstein M, Hedges LV, Higgins J, Rothstein HR (2009) Introduction to meta-analysis. In: John Wiley & Sons Ltd. United Kingdom, ChichesterGoogle Scholar
- Chaucheyras-Durand F, Masséglia S, Fonty G, Forano E (2010) Influence of the composition of the cellulolytic flora on the development of hydrogenotrophic microorganisms, hydrogen utilization, and methane production in the rumens of gnotobiotically reared lambs. Appl Environ Microbiol 76:7931–7937CrossRefGoogle Scholar
- Chaucheyras-Durand F, Chevaux E, Martin C, Forano E (2012) Use of yeast probiotics in ruminants: effects and mechanisms of action on rumen pH, fibre degradation, and microbiota according to the diet. In: Rigobelo EC (ed) Probiotic in animals. IntechOpen, https://doi.org/10.5772/50192. Available from: https://www.intechopen.com/books/probiotic-in-animals/use-of-yeast-probiotics-in-ruminants-effects-and-mechanisms-of-action-on-rumen-ph-fibre-degradation-.
- Kataria RP (2015) Use of feed additives for reducing greenhouse gas emissions from dairy farms. Microbiol Res 6:19–25Google Scholar
- Lu Q, Wu J, Wang M, Zhou C, Han X, Odongo EN, Tan Z, Tang S (2016) Effects of dietary addition of cellulase and a Saccharomyces cerevisiae fermentation product on nutrient digestibility, rumen fermentation and enteric methane emissions in growing goats. Arch Anim Nutr 70:224–238CrossRefGoogle Scholar
- Meller RA (2016) Potential roles of nitrate and live yeast culture to suppress methane emission and their influence on ruminal fermentation, digestibility, and milk production in Jersey cows. The Ohio State University, MSc dissertationGoogle Scholar