Influence of Live Cells or Cells Extract of<i>Saccharomyces Cerevisiae</i>on<i>in Vitro</i>Gas Production of a Total Mixed Ration

Rodriguez, Miguel Pulido; Mariezcurrena, M. D.; Mariezcurrena, María A.; Cruz-Lagunas, Blas; Elghandour, Mona M.Y.; Kholif, A. M.; Kholif, Ahmed E.; Morales-Almaráz, Ernesto; Salem, Abdelfattah Z.M.

doi:10.4081/ijas.2015.3713

Cited by 24 publications

(26 citation statements)

References 36 publications

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“…Yeast additives had no effect on rate of GP but there was a slight increase in rate of GP compared with the control. This result is in contrast to the work of Rodriguez et al (2015) who reported a decreased rate of GP in response to SC additives. The differences in results may be due to the composition and incubation of the substrates (Elghandour et al, 2014).…”

Section: Discussioncontrasting

confidence: 99%

Effectiveness of xylanase and Saccharomyces cerevisiae as feed additives on gas emissions from agricultural calf farms

Hernández

Kholif

Elghandour

et al. 2017

Journal of Cleaner Production

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a b s t r a c tThe aim of the present study was to evaluate the potential of supplementing calves' diets with exogenous enzymes (xylanase; XYL) and yeast (Saccharomyces cerevisiae [SC]) on the sustainable control of methane (CH 4 ) and carbon dioxide (CO 2 ) productions in agricultural calves farming. Three different levels of supplemented diets of XYL (0, 3 and 6 mg/g of dry matter (DM)), SC (0, 2 and 4 mg/g of DM) and mixture of XYL and SC (0, 2 mL XYL þ 2 mg SC, 6 mL XYL þ 4 mg SC/g of DM) were tested. Asymptotic gas production (GP) consistently decreased by each of the additives with the lowest value at the high dose of XYL þ SC mixture (P < 0.05) compared with the control and the low dose of XYL þ SC mixture. Methane production was reduced by additives inclusion (P < 0.05) when compared with the control treatment with no additive. Xylanase þ SC at all doses increased CO 2 production (P < 0.05) whereas the high dose had the most statistically significant (P < 0.05) reduction in GP and CH 4 production compared with control, XYL and SC additives at different doses. Interaction between additive and rumen liquor was observed for rate of GP (P ¼ 0.027) and initial delay before GP (P < 0.001). Inclusion of XYL, SC, and XYL þ SC mixture had less asymptotic GP while XYL þ SC mixture had the lowest initial delay (39%) before GP began. The XYL þ SC had the lowest rate of CH 4 production (9%) and highest asymptotic CO 2 production (81%). The findings of this study indicate that inclusion of XYL or SC additives can improve rumen fermentation and reduce greenhouse gases production. The study also established that the mixture of XYL and SC is more efficient in reducing gas and CH 4 emissions for cleaner environmental production conditions in calf farming.

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Section: Discussioncontrasting

confidence: 99%

Effectiveness of xylanase and Saccharomyces cerevisiae as feed additives on gas emissions from agricultural calf farms

Hernández

Kholif

Elghandour

et al. 2017

Journal of Cleaner Production

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“…Gas production is generally a good indicator of digestibility, fermentability and microbial protein production (Rodriguez et al . 2015). Higher proportions of concentrates in the rations indicate a better nutrient availability for rumen microorganisms (Elghandour et al .…”

Section: Discussionmentioning

confidence: 99%

The effects of three total mixed rations with different concentrate to maize silage ratios and different levels of microalgaeChlorella vulgarisonin vitrototal gas, methane and carbon dioxide production

et al. 2016

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SUMMARYThe aim of the current study was to assess the effects of adding Chlorella vulgaris algae at different levels on in vitro gas production (GP) of three total mixed rations (TMR) with different concentrate (C): maize silage (S) ratios (25C : 75S, 50C : 50S, 75C : 25S). Chlorella vulgaris was added at 0, 20, 40 and 80 mg/g dry matter (DM) of the TMR and total gas, methane (CH4) and carbon dioxide (CO2) production were recorded after 2, 4, 6, 8, 10, 12, 24 and 48 h of incubation in three runs. Increasing concentrate portion in the TMR linearly increased the asymptotic GP and decreased the rate of GP without affecting the lag time. Addition of C. vulgaris at 20 mg/g DM to the 25C : 75S TMR increased the asymptotic GP, CH4, CO2 and GP at 48 h. Addition of C. vulgaris to the 50C : 50S TMR decreased the asymptotic GP and GP at 48 h. Higher CH4 production was observed at 48 h of incubation when C. vulgaris was included at (per g DM): 20 mg for the 25C : 75S ration, 40 mg for the 50C : 50S ration and 80 mg for the 75C : 25S ration. Inclusion of C. vulgaris linearly increased CH4 production for the 50C : 50S ration and increased CO2 production at 10 and 12 h of incubation for the 50C : 50S ration, whereas 20 and 40 mg C. vulgaris/g DM of the 75C : 25S TMR decreased CO2 production. The 25C : 75S TMR had the highest in vitro DM disappearance with C. vulgaris addition. Chlorella vulgaris addition was more effective with rations high in fibre content than those high in concentrates. It can be concluded that the optimal level of C. vulgaris addition was 20 mg/g DM for improved ruminal fermentation of the 25C : 75S TMR.

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“…Further, as described by Rodriguez et al (2015), and at the end of incubation period, bottles were uncapped and the pH was measured using a digital pH meter (Conductronic pH15.0, Puebla, Mexico), and the residual of each bottle was filtered under vacuum through glass crucibles with a sintered filter. The fermentation residues were dried at 65 C for 72 h in order to estimate DM digestibility (DMD) (Orskov and McDonald, 1979).…”

Section: In Vitro Incubationsmentioning

confidence: 99%

Assessment of some browse tree leaves on gas production and sustainable mitigation of CH4 and CO2 emissions in dairy calves at different age

Elghandour

Salem

Khusro³

et al. 2017

Journal of Cleaner Production

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a b s t r a c tThe present context was aimed to determine the in vitro gas production (GP), mitigation of methane (CH 4 ) and carbon dioxide (CO 2 ) emission, and ruminal fermentation from nine different tree leaves as suitable alternatives for alfalfa hay. Tree leaves and alfalfa hay were incubated with rumen inoculum from calves at different ages (20, 40, and 60 d). The level of asymptomatic GP [mL/g dry matter (DM)] differed (P < 0.05) between different tree leaves compared with alfalfa hay. Most of the plant leaves showed differed (P < 0.05) asymptomatic CH 4 production (mL/g DM), fractional rate of GP and lag time. The asymptomatic CO 2 production and fractional rate of CO 2 production decreased effectively (P < 0.01) with the different tree leaves. In vitro rumen CH 4 and CO 2 productions (mL/g incubated DM) by species incubated in the rumen liquor of calves collected at 60 d of age increased effectively. Fermentation pH (P < 0.001) was found to be significant parameter but DM degradability (P > 0.05) was not significant by dose and substrate Â dose interaction. Tree leaves showed lower production of CH 4 (mL/g incubated DM) and proportional CH 4 emission when compared to alfalfa hay after the required period of incubation at significant level (P < 0.05). However, different tree leaves had no influence (P > 0.05) on CO 2 production (mL/g incubated DM and mL/g degraded DM) and proportional CO 2 production. The incorporation of tested tree leaves in diet would be a valuable alternative of alfalfa hay with sustainable reduction properties of CH 4 and CO 2 productions. These potent tree leaves can be used as valuable cleaner product and feeding stuffs for the environment and ruminants respectively due to their in vitro fermentative properties.

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Influence of Live Cells or Cells Extract ofSaccharomyces Cerevisiaeonin VitroGas Production of a Total Mixed Ration

Cited by 24 publications

References 36 publications

Effectiveness of xylanase and Saccharomyces cerevisiae as feed additives on gas emissions from agricultural calf farms

Effectiveness of xylanase and Saccharomyces cerevisiae as feed additives on gas emissions from agricultural calf farms

The effects of three total mixed rations with different concentrate to maize silage ratios and different levels of microalgaeChlorella vulgarisonin vitrototal gas, methane and carbon dioxide production

Assessment of some browse tree leaves on gas production and sustainable mitigation of CH4 and CO2 emissions in dairy calves at different age

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