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

Journal of Dairy Science
A N HristovI Yoon

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 app...Continue Reading

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Citations

Aug 29, 2013·Journal of Animal Science and Biotechnology·Metha WanapatSineenart Polyorach
Sep 17, 2013·Journal of Dairy Science·H N PhuongP Schmidely
Jan 30, 2014·Journal of Dairy Science·C Lee, A N Hristov
Jul 21, 2015·Journal of Dairy Science·F GiallongoA N Hristov
May 13, 2014·Tropical Animal Health and Production·Olivier Basole KashongweJohn Odhiambo Osoo
Aug 30, 2019·Journal of Applied Microbiology·M M Y ElghandourA Z M Salem
Dec 12, 2018·Environmental Science and Pollution Research International·Babak DarabighaneSecundino López
Jul 27, 2020·Translational Animal Science·Hugo F MonteiroAntonio P Faciola
Jan 24, 2019·Animals : an Open Access Journal From MDPI·Ibukun OgunadeChristina McManus

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