As global poultry farming moves toward sustainable and antibiotic-free production, Saccharomyces cerevisiae (brewer’s yeast) has become one of the most valuable functional feed additives. Its natural, safe, and nutritionally rich properties make it an essential tool for improving poultry performance under modern farming conditions.

1. Nutritional and Functional Components of Saccharomyces cerevisiae

• High-quality proteins and essential amino acids

Support muscle growth and improve feed efficiency.

• B-complex vitamins

Enhance metabolism and stress resistance.

• Functional polysaccharides: MOS and β-glucans

• MOS binds harmful bacteria

• β-glucans stimulate immune cells

• Minerals and trace elements

    Promote bone development and overall health.

    These components collectively create powerful benefits for intestinal health and immune support.

2. Key Benefits in Poultry Production

1. Improved Gut Health and Feed Conversion

Yeast optimizes the intestinal microbiota by:

• Suppressing pathogens such as E. coli and Salmonella

• Promoting beneficial Lactobacillus growth

• Enhancing enzyme activity and nutrient absorption

Results:
✔ Better weight gain
✔ Lower feed conversion ratio
✔ Less ammonia emission and cleaner environment

2. Stronger Immunity and Lower Disease Incidence

β-glucans and nucleotides from yeast help:

• Boost lymphoid organ development

• Increase antibody levels

• Strengthen vaccine response

• Reduce intestinal and respiratory diseases

    This is especially valuable in high-density poultry farms.

3. Ideal for Antibiotic-Free Poultry Farming

Since yeast is 100% natural:

• No drug residues

• No antimicrobial resistance

• Safe for long-term use

    It aligns perfectly with the global shift toward safe, green poultry production.

3. Benefits Across Poultry Categories

Broilers

• Faster growth

• Reduced diarrhea and intestinal issues

• Better carcass quality

Layers

• Higher laying rate

• Stronger eggshells

• Improved yolk color and nutrition

Breeders

• Healthier reproductive performance

• Higher hatchability

• Better chick quality

4. Common Forms in Poultry Feed

• Yeast culture – rich in fermentation metabolites

• Yeast cell wall – high MOS and β-glucan content

• Live yeast – supports gut flora stability

• Inactivated yeast – high-protein feed material

      Different forms can be chosen according to production needs.

Conclusion

      Saccharomyces cerevisiae provides a comprehensive solution for modern poultry farming. Its benefits in gut health, immunity, growth performance, and antibiotic-free production make it one of the most promising feed additives in the industry. As biological fermentation technology advances, yeast-based products will continue to play a key role in building healthier and more efficient poultry farming systems.