Effect of Saccharomyces cerevisiae fermentation product on ruminal fermentation and nutrient utilization in dairy cows

Alexander Nikolov Hristov, G. Varga, T. Cassidy, M. Long, K. Heyler, S. K.R. Karnati, B. Corl, C. J. Hovde, I. Yoon

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

The goal of this experiment was to investigate the effect of yeast culture (Saccharomyces cerevisiae) on rumen fermentation, nutrient utilization, and ammonia and methane emission from manure in dairy cows. Eight ruminally cannulated Holstein cows were allocated to 2 dietary treatments in a crossover design. Treatments were control (no yeast culture) and XP (yeast culture, fed at 56 g/head per day; XP, Diamond V Mills Inc., Cedar Rapids, IA). Dry matter intake, milk yield, milk composition, and body weight were similar between treatments. Milk urea nitrogen concentration was also not affected by treatment. Rumen pH was similar between the control and XP treatments, but rumen ammonia concentration tended to be lower with XP than with the control. Treatment had no effect on concentrations of total or individual volatile fatty acids, protozoal counts, polysaccharide-degrading activities (except amylase activity that tended to be increased by XP), or methane production in the rumen. Urinary N losses did not differ significantly between treatments, but allantoin and total purine derivative excretions and the estimated microbial N outflow from the rumen tended to be increased by XP compared with the control treatment. Total-tract apparent digestibility of dietary nutrients was not affected by XP. Milk fatty acid composition was also not altered by XP supplementation. Cumulative (253 h) ammonia and methane emissions from manure, measured in a steady-state gas emission system, were slightly decreased by XP. Overall, the yeast culture tested had little effect on ruminal fermentation, digestibility, or N losses, but tended to reduce rumen ammonia concentration and increase microbial protein synthesis in the rumen, and decreased ammonia and methane emissions from manure.

Original languageEnglish (US)
Pages (from-to)682-692
Number of pages11
JournalJournal of dairy science
Volume93
Issue number2
DOIs
StatePublished - Feb 1 2010

Fingerprint

Rumen
nutrient utilization
rumen fermentation
Fermentation
Saccharomyces cerevisiae
rumen
dairy cows
fermentation
Ammonia
ammonia
Food
Methane
Manure
Milk
methane
yeasts
Yeasts
animal manures
digestibility
allantoin

All Science Journal Classification (ASJC) codes

  • Food Science
  • Animal Science and Zoology
  • Genetics

Cite this

Hristov, Alexander Nikolov ; Varga, G. ; Cassidy, T. ; Long, M. ; Heyler, K. ; Karnati, S. K.R. ; Corl, B. ; Hovde, C. J. ; Yoon, I. / Effect of Saccharomyces cerevisiae fermentation product on ruminal fermentation and nutrient utilization in dairy cows. In: Journal of dairy science. 2010 ; Vol. 93, No. 2. pp. 682-692.
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Hristov, AN, Varga, G, Cassidy, T, Long, M, Heyler, K, Karnati, SKR, Corl, B, Hovde, CJ & Yoon, I 2010, 'Effect of Saccharomyces cerevisiae fermentation product on ruminal fermentation and nutrient utilization in dairy cows', Journal of dairy science, vol. 93, no. 2, pp. 682-692. https://doi.org/10.3168/jds.2009-2379

Effect of Saccharomyces cerevisiae fermentation product on ruminal fermentation and nutrient utilization in dairy cows. / Hristov, Alexander Nikolov; Varga, G.; Cassidy, T.; Long, M.; Heyler, K.; Karnati, S. K.R.; Corl, B.; Hovde, C. J.; Yoon, I.

In: Journal of dairy science, Vol. 93, No. 2, 01.02.2010, p. 682-692.

Research output: Contribution to journalArticle

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AU - Hristov, Alexander Nikolov

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