The use of probiotics in bovines has the main purpose to influence the ruminal metabolism by stimulating the ruminal microbes to maintain health and improve productive performance. VINYEAST – P is a unique combination of Live Yeast Culture (Saccharomyces cerevisiae) and Propionibacteria (Propionibacterium freudenrechii). This novel combination influence ruminal metabolism by manipulating fermentation and ruminal productivity.


Maintaining the rumen ecosystem is a balancing act. By maximizing fermentation, the cow obtains more VFA for energy and more microbial protein. However, more fermentation means more acid production and a lower rumen pH. Low rumen pH can depress fibre digestion and lead to metabolic disorders. VINYEAST – P enables to maintain the fine balance between productivity and acidosis. Individually, the LYC and Propionibacteria have different modes of action, but when administered in combination has a greater stimulating effect on the rumen ecosystem.


LYC stimulates the growth of microbial anaerobes and cellulolytic bacteria. They improve fiber digestion, reduce lactate accumulation, reduce the concentration of oxygen in rumen fluid and improves utilization of starch supplied in the ration. Thus, they influence the stability of the rumen environment and improve the intensity of digestion.

It increases the number of rumen protozoa and improves neutral detergent fiber digestion. It stimulates acetogenic bacteria in the presence of methanogens which might result in more efficient rumen fermentation. It stimulates the growth of lactic acid utilizing bacteria and the bacteria that convert molecular hydrogen to acetate in the rumen. It also enhances activities of fiber digesting fungi in the rumen which leads to enhanced digestive processes and the destruction of the metabolic intermediates that can result in ruminal dysfunction.

LYC supplementations can beneficially alter nitrogen metabolism in the rumen which is reflected in the lower ammonia concentration and increased flow of microbial protein from the rumen to intestines for digestion. This suggests the indirect role of LYC in stimulating protein synthesis in dairy cattle.


Lactic acid is prone to getting accumulated in the rumen as its adsorption is much slower than that of propionic acid. Propionibacterium reduces ruminal lactic acid levels by converting lactic acid to propionic acid; maintains rumen pH at a higher level, which is friendlier to “fibre digesting bacteria” and thus checks detrimental effects of acidosis. Propionic acid is used by ruminants to make blood glucose, milk protein, milk sugar, and muscles.

Under normal conditions, nitrate is converted by rumen organisms to nitrite, which binds the hemoglobin in the bloodstream and reduces the oxygen-carrying capacity of the blood. VINYEAST – P converts nitrate to harmless nitrogen gas in the rumen to improve the oxygen-carrying capacity of the blood.

Propioni bacteria have cell wall structures that bind mycotoxins and limit their bioavailability in the animal body. Mycotoxins are then eliminated in the feces without significant detrimental effects on the animals or any risk of toxic residues to be found the inedible animal products.


• Increases the milk yield by 500 ml to 1 liter per day

• Increases butter fat yield

• Improves fibre digestion to get maximum production of VFA’s

• Provides more amino acids to the animal and increases the supply of microbial protein to intestines which saves cost of bypass protein

• Less lactic acid and less methane is produced

• Increases dry matter digestibility• Optimizes ruminal health