Yeast metabolites refer to compounds that yeast cells produce during fermentation. The fermentation conditions can affect the production of metabolites by yeast. There are many metabolites that yeast produces, including oligosaccharides and organic acids as well as polyphenols, peptides and proteins.
It is important to remember that not all yeast metabolites are the same in animals. The concentrations and ratios will affect the quality and efficacy of the final product. You can also navigate to feedworks for more information about yeast metabolites in poultry.
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To improve growth, poultry diets contain yeast metabolites. Supplementation of broiler food with 2.5% yeast culture resulted in heavier broilers and higher feed conversion efficiency.
Supplementation with yeast metabolites at a level of 2 g/kg resulted in an increase in body weight, but it didn't affect feed intake or efficiency in laying chickens. Broilers that were fed 0.45% and 0.15% on dried yeast had higher feed efficiency and body weight gains.
Research has shown that nursery pigs receiving yeast metabolites had a higher average daily gain than those who did not receive them. Similar results were found for broilers supplemented with saccharomyces cerevisiae.
Saccharomyces cerevisiae's effects have been attributed to its natural richness in minerals, proteins, B-complex nutritional supplement, and other nutrients. The natural growth stimulators for poultry and livestock production are the yeast metabolites, which contain Mannan Oligosaccharides and D-glucan.