<abstract xmlns="http://www.w3.org/1999/xhtml">

This study was conducted to evaluate the effects of live <italic>Saccharomyces cerevisiae</italic> yeast (LY) supplementation on high-starch diets for dairy cows. Using a 2 × 2 factorial design, four treatment groups were examined: adequate starch without LY (AS-control), AS with LY (AS-LY), high starch without LY (HS-control), and HS with LY (HS-LY). LY was added at 2.9 × 106 CFU/200 mg DM or without yeast. In vitro gas and methane (CH4) production, organic matter (OM) digestibility, rumen fermentation, and metabolizable energy (ME) were analyzed. The Hohenheim Gas Test apparatus was used, and total gas volumes were measured at various incubation hours. Results showed no significant effects of LY or dietary starch ratio on gas kinetics, total gas, or CH4 production. Similarly, OM digestibility, fermentation kinetics, and ME were unaffected. In conclusion, LY supplementation did not alter in vitro gas, CH4 production, OM digestibility, rumen fermentation, or ME. Further research could investigate the underlying mechanisms, such as rumen microbial population influences.
</abstract>

This study was conducted to evaluate the effects of live Saccharomyces cerevisiae yeast (LY) supplementation on high-starch diets for dairy cows. Using a 2 × 2 factorial design, four treatment groups were examined: adequate starch without LY (AS-control), AS with LY (AS-LY), high starch without LY (HS-control), and HS with LY (HS-LY). LY was added at 2.9 × 106 CFU/200 mg DM or without yeast. In vitro gas and methane (CH4) production, organic matter (OM) digestibility, rumen fermentation, and metabolizable energy (ME) were analyzed. The Hohenheim Gas Test apparatus was used, and total gas volumes were measured at various incubation hours. Results showed no significant effects of LY or dietary starch ratio on gas kinetics, total gas, or CH4 production. Similarly, OM digestibility, fermentation kinetics, and ME were unaffected. In conclusion, LY supplementation did not alter in vitro gas, CH4 production, OM digestibility, rumen fermentation, or ME. Further research could investigate the underlying mechanisms, such as rumen microbial population influences.

Assessing the effects of live yeast supplementation to diets containing high starch of dairy cows on rumen fermentation and methane production <italic>in vitro</italic>

Instıtute of Graduate Studies, Department of Animal Nutrition and Nutritional Diseases

Ondokuz Mayıs University, Faculty of Veterinary Medicine

Department of Animal Nutrition and Nutritional Diseases

Archiva Zootechnica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Assessing the effects of live yeast supplementation to diets containing high starch of dairy cows on rumen fermentation and methane production 

This study was conducted to evaluate the effects of live Saccharomyces cerevisiae yeast (LY) supplementation on high-starch diets for dairy cows. Using a 2 × 2...

Assessing the effects of live yeast supplementation to diets containing high starch of dairy cows on rumen fermentation and methane production in vitro

Published Online: Jun 24, 2024

Page range: 115 - 130

DOI: https://doi.org/10.2478/azibna-2024-0008

Keywords
dairy cow, high starch, in vitro fermentation, live yeast, methane production

© 2024 Evren Hasan Şen et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Assessing the effects of live yeast supplementation to diets containing high starch of dairy cows on rumen fermentation and methane production in vitro

Published Online: Jun 24, 2024

Page range: 115 - 130

DOI: https://doi.org/10.2478/azibna-2024-0008

Keywordsdairy cow, high starch, in vitro fermentation, live yeast, methane production

© 2024 Evren Hasan Şen et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
dairy cow, high starch, in vitro fermentation, live yeast, methane production