UltraCell Live Yeast

UltraCell is a concentrated source of a single elite strain of Saccharomyces cerevisiae yeast used as a rumen stimulant to stabilize rumen pH and enhance fibre digesting populations of rumen bacteria.

The rumen is the major part of the ruminant digestive system where the ingested feeds are fermented. Rumen fermentation is carried out by rumen bacteria, fungi and protozoa that all live in the same ecosystem. The extent of rumen microbial activity affects fiber digestion which is in turn highly correlated with animal feed intake. Normally, the faster the rumen fiber is digested the more feed the animal will eat.

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Different microbial activities result in different fermentation products and consequently affect animal production and feed utilization. For example, Bacteroides succinogenes ferments cellulose to produce formic, acetic and succinic acids that can be used by the host animal, while Methanobacterium ruminantium utilizes formate and hydrogen for production of methane which is a waste material.

Optimization of rumen fermentation, including maximizing rumen fiber digestion and microbial synthesis while minimizing protein degradation, ammonia and methane production has been a popular research topic. Research has shown that certain strains of Saccharomyces cerevisiae can improve rumen fermentation, thereby increasing animal production.

Cells

Certain yeasts have been shown to stimulate increased lactate utilisation by rumen bacteria including the species Megasphaera elsdenii and Selenomonas ruminantium while others have been shown to have a positive effect on the activity of fibrolytic bacteria such as Bacteroides succinogenes and Ruminococcus albus.

During the screening and selection program that ultimately identified a strain of Saccharomyces cerevisiae as the product strain for UltraCell, the ability of the candidate strains of yeasts to stimulate fibrolytic and lactate-utilising bacteria was assessed as part of the primary screening.

UltraCell was selected through the following screening procedures:

effects of UltraCell

UltraCell significantly stimulated the growth of populations of rumen bacteria responsible for fibre digestion and lactate utilization. When used as a rumen stimulant, UltraCell provides for a more stable rumen pH and enhanced rates of fibre digestion which results in greater feed intake, better digestion and improved production.

Characteristics of UltraCell

Increases rumen total and cellulolytic bacteria
Increases fiber digestion
Stabilizes rumen pH
Reduces rumen methane production
Resistant to many antibiotics and ionophores
Fully compatible with trace minerals.

Effect of UltraCell on Milk Production.