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How does YeaVita R improve production performance in ruminants?

August 27th, 2020

By Xiangqian Xiao

The strain of YeaVita R is selected according to the internal environment and production performance in ruminant. The functions of live yeast can be brought out the best because of the adaptability of YeaVita R in rumen environment. Generally, there are three ways for YeaVita R to regulate rumen health and improve production performance as below.

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1. Effect of YeaVita R on pH and lactic acid concentration in rumen

The stability of pH is generally related to the concentration of lactic acid in rumen. The results of researches showed that a large amount of starch in high concentrate diet was fermented and utilized by bacteria in rumen. The large amount of organic acids produced would lead to the decrease of rumen pH. So low pH would inhibit the growth of rumen cellulolytic bacteria.

The growth of lactic acid utilizing bacteria were stimulated by YeaVita R, then the proliferation of lactic acid producing bacteria was inhibited. The decrease of lactic acid concentration avoids the inhibition of high acidity on the growth of rumen microorganisms. Therefore, the regulation of rumen function by YeaVita R prevented the occurrence of rumen acidosis.

2. Effect of YeaVita R on the total number of bacteria in rumen

The activity of cellulolytic bacteria is the main factor to promote the digestion of fiber in rumen. When pH ≥ 6. 0, most of the energy of fiber will be absorbed by these microorganisms. When pH is less than 6. 0, the growth of cellulolytic bacteria will be inhibited.

However, YeaVita R increases pH by promoting the growth of lactic acid utilizing bacteria in the rumen. Therefore, the co-fermentation of cellulolytic bacteria and lactic acid utilizing bacteria kept a balance of rumen pH. In this way, the digestibility of fiber improved and the yield of volatile fatty acids (VFA) increased.

3. Effect of YeaVita R on microbial protein in rumen

YeaVita R increases microbial protein production by increasing the number of rumen microorganisms, which induces the increasing of the available amino acids in intestinal tract, the improving of protein deposition and production performance.

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Therefore, YeaVita R adapts to the rumen environment, improves the rumen environment, and prevents acidosis and rumen flatulence. Finally, it promotes the digestion and absorption of nutrients, so as to improve the production performance of ruminants.


Published by Xiangqian Xiao

Marketing Manager of Animal Nutrition Division

About Angel Animal Nutrition:

Fubon is a brand of Angel Animal Nutrition. Fubon is committed to developing natural, efficient microbial feed derived from yeast with Angel's leading technology in yeast industry, providing the best service solutions for the nutrition and health in animals. Angel Animal Nutrition creates value for global feed and animal agriculture customers through continuously upgraded products and professional services.

About Angel:

Angel Yeast Company is a high-tech listed company specializing in yeast and biotech. Product business covers Yeast and Baking, Yeast Extract-Savoury, Nutrition & Health and Biotechnology fields. It is one of the world's leading companies in the yeast industry. Angel has 12 holding subsidiaries and provides products and services for more than 150 countries and regions.

Press contact:


Address: 168 Chengdong Avenue, Yichang, Hubei 443003, P. R.China

Tel:+86-717-6369520, 6369558


email: aie@angelyeast.com

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