CitriStim logoCitriStim®, a yeast mannan, is an ADM proprietary yeast (Pichia guilliermondii) supplement that can be used in receiving cattle diets to enhance growth. Yeast mannans have been shown to influence the population of pathogenic bacteria (including E. coli, Salmonella, Proteus, Klebsiella, and Clostridium) by lowering their numbers. Studies show CitriStim improved gain and feed conversion in arrival cattle (ADM Research Studies B03102 and B05103). CitriStim can also be used in other cattle diets.


  • Based on their activity against the pathogenic bacteria population, yeast mannans may be beneficial to a calf’s gastro intestinal health, which may help enhance calf growth.
  • CitriStim can be added to milk replacers or starter feed to help enhance calf performance and health.
  • Calves nursing cows consuming mineral containing CitriStim may realize benefits.

Receiving Cattle/High Stress

  • CitriStim can be added to arrival/starter feed to help enhance the growth of calves and yearlings (ADM Research Studies B03102 and B05103).
  • Studies using CitriStim show that dry matter intake increased an average 7% and average daily gain improved an average 15.25%.
  • Receiving studies also showed improved dry matter conversion.


  • CitriStim mayenhance calf gut health.
  • Research documents CitriStim’s deleterious effect on E. colipopulations. Substances comparable to CitriStim have also been shown to have the same effect on other pathogenic bacteria, such as Salmonella, Klebsiella, and Clostridium. This may have a positive influence on the naïve, young calf’s environment.
  • CitriStim works best as part of an overall scour management program which includes vaccination for viruses and approved ionophores for cocci.
  • Consult a veterinarian for diagnosis of existing calf scour problem.

How CitriStim differentiates itself from other top beef yeast mannan products:

Consistent Quality – Manufactured solely by ADM in one food grade facility, yielding a product with exceptional high, consistent quality with very minimal variability in yeast mannan content.

Demonstrated Efficacy – The efficacy of CitriStim is proven scientifically through internal and external research.

Single Site Production – Provides consistency.

Manufacturing Efficiencies – CitriStim is a proprietary feed ingredient manufactured solely by ADM.

For more information on CitriStim, click here!