Active yeast

What is active yeast?

Active yeast is a special strain of yeast developed to “work” in the rumen of a ruminant. The special yeast strain stimulates the conversion of lactic acid into propionic acid. This stabilises the rumen’s pH. It reduces the risk of subacute ruminal acidosis (SARA) and provides better “working conditions” for useful ruminal bacteria.

Possibilities of positive yields

  • Prevents subacute ruminal acidosis (SARA)
  • Prevents laminitis
  • Prevents ketosis
  • Prevents displaced abomasum
  • Prevents mastitis
  • Increases feed ingestion
  • More protein produced by ruminal bacteria
  • More balanced energy in early lactation
  • Reduces veterinarian costs
  • Higher milk yields, up to 2 kg ECM per cow per day
  • Improves calf growth by 5–10% 


  • YeaSacc
  • Suplex YeaSacc Top

Rationing options

  • Administer by means of a mineral compound or as a top dressing
  • Permitted for use by organic farmers