BREWER’S YEAST FOR ANIMAL FEED

NATURAL PROTEIN SUPPLEMENT FOR ANIMAL NUTRITION

Feed yeast is composed 100% of brewer’s yeast (*Saccharomyces cerevisiae*), which comes from the beer brewing process. It is dried and deactivated through a specific technological process. Presented as light brown granules with a slightly bitter taste, it has the characteristic smell and aroma of yeast.

The granular form of this product prevents it from sticking to the walls of feed mixing equipment, minimizing losses during the mixing process. Currently, feed yeast is widely used in animal nutrition, known for its protein content, which has a nutritional value similar to animal-derived proteins. Thus, feed yeast has become a valuable ingredient for balancing feed rations, especially after the ban on the use of meat and bone meal in animal feed across Europe.

Exceptional Nutritional Qualities

In addition to its exceptional nutritional qualities, this yeast plays a major role in preventing intestinal issues in animals. This yeast species can bind irreversibly to pathogenic bacteria that develop in the intestine, such as enterohemorrhagic *Escherichia coli* or *Salmonella typhimurium*, which has undergone multiple mutations and become resistant to a wide range of antibiotics, causing problems in farm animals.

Administering this yeast species to animals prevents pathogenic bacteria from attaching to the intestinal wall, where they could multiply and cause intestinal issues. Instead, they bind to the yeast cells administered and are eliminated along with the feces.

Benefits for Ruminant Production

Studies show that adding live yeasts of the *Saccharomyces* species to dairy cows’ feed increases the number of beneficial bacteria that digest cellulose in their rumen, enhancing cellulose digestibility and crude protein utilization. Recent research demonstrates that adding live yeast (*S. cerevisiae boulardii*) to milk replacers for calves improves their health, enhances performance, and reduces the incidence of diarrhea. Other studies show that adding this yeast species to calves’ diet helps eliminate antibiotic-resistant pathogens from the intestine. Moreover, live yeast supplements given to ruminants stimulate a specific group of rumen microorganisms, directly enhancing production. Experiments on bulls revealed that ammonia levels in the rumen dropped by over 50% with live yeast supplementation. In this case, ammonia is used in protein synthesis, boosting animal performance.

Benefits of Use:

– High biological value protein source

– Natural source of vitamins and minerals

– Stabilizes and regulates intestinal flora

– Stimulates and supports the immune system

– Prevents diarrhea and promotes healing processes

Why Use Brewer’s Yeast in Animal Feed?

– Yeast proteins meet almost all animals’ growth needs

– Increases appetite and milk production in animals

– Contains 4% alcohol, an important energy component

Recommended Usage in Feed:

– Laying Birds: 4-5%

– Large Ruminants: 8-10%

– Small Ruminants: 4-6%

– Fattening Pigs: 5-7%

– Breeding Pigs and Piglets: 3-5%

– Horses: 12%

– Rabbits: 1-1.5%

Nutritional Parameters

Analytical Nutritional Parameters

– Protein: 45%

– Fat: 4%

– Maximum Moisture: 10%

– Lysine: 3.31%

– Methionine: 0.6%

– Complete Vitamin B Group

In conclusion, the administration of brewer’s yeast can lead to:

– Altered microbial population diversity

– Favorable changes in volatile fatty acid content in the rumen

– Positive effects on ammonia reduction in the rumen

– Positive effects on rumen pH

– Increased fiber digestibility

Feedback from farmers indicates that adding yeast to ruminants’ diets results in improved feed intake efficiency, fewer digestive problems, better animal health, and enhanced productivity

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