Skip to Content Skip to Navigation

In today’s Animal Nutrition Insights, Redox’s Animal Nutritionist Dr Yumin Bao shares information on Yeast Peptides and how their inclusion in animal feed can improve several conditions that often affect animal health.

Yeast peptide is a naturally occurring molecule with 19 unique amino acids, long lasso structure antimicrobial peptide from the bacteria Citrobacter braakii.

Usually, this peptide has been referred to as the host defence peptide to directly kill bacteria, yeasts, fungi and virus. Because this peptide exhibits a net positive charge and a high ratio of hydrophobic amino acids, it can selectively bind to negatively charged bacterial membranes and is able to cross the membrane to inhibit RNA synthesis, resulting in lysis of the targeted pathogens such as E.coli and Semolina.

RNA inhibitors

Therefore, different from antibiotics, it is difficult for pathogens to develop the resistance to this peptide since it would require drastic changes in the composition of membranes in targeted bacteria.

It has been demonstrated that the addition of this yeast peptide can improve several conditions in the below animals:

Weaning piglets with an average body weight at 7.98 kg for 28 days –

  • significantly reduced diarrhoea incidence from 12.4% to 6.74%
  • increase daily body weight gain by 7.1%
  • feed conversion ratio by 8%.

Laying hens –

  • increased egg production by 3.8%
  • significantly reduced broken eggs and mortality rate.

In broiler chickens, compared with the antibiotic treatment, the combination of this yeast peptide and the acidifier significantly reduced the mortality rate and improved body weight gain by 8.4%. As well in ruminants such as lambs, this yeast peptide has the significant effect on the prevention of urethral calculus.

In a field trial study conducted in China, the incidence rate of urethral calculus in three farms were 5.56%, 4.55% and 1.45%, respectively, one week after using the yeast peptide, the incidence of urinary stone dropped to zero due probably to the fact that the yeast peptide reduces pathogens infections.

Want to know more? Contact one of our industry specialists and ask them today.

 

Back to all News

Posted 11 Jun 2025 in Food and Beverage

Malic Acid: Naturally Sharp, Remarkably Smart

Malic acid is gaining increasing relevance across food, beverage, pharmaceutical and personal care industries. Known for its pleasant tartness and role in cellular energy production, malic acid is a functional ingredient and a sustainable...

Posted 4 Jun 2025 in Chemicals

Redox Expands Lubricant Range with Kangtai

Redox is pleased to announce a new distribution agreement with Kangtai, a global leader in lubricant additive technology. This partnership marks a significant step in expanding our high-performance lubricant solutions across Australia and...

Posted 29 May 2025 in Human Health

White Oil: Purity, Performance and Sustainability

White Oil, also known as mineral white oil or light mineral oil, is a highly refined, clear, and odourless petroleum-based oil. Produced through multiple purification stages, including dewaxing, hydrotreating, and hydrocracking, white oil...