C24H40O5 (CA); C24H40O4 (DA)

Mixed Bile Acids


Mixed Bile Acids (MBA) is a mixture of crude deoxycholic acid (70 to 85%), cholic acid (5 to 15%) and bile pigments.
NZP developed this product specifically for aqua and agricultural applications and its main uses are as feed supplements in the prawn, shrimp, fish and poultry industries. MBA is free flowing and is easily incorporated into feeds.

Use of Chemical

MBA is widely used in prawn feeds as a source of sterols which are an essential nutritional requirement for the prawn.

 Prawns require steroids which they convert into a moulting hormone, to allow the rapid passage through their different larval growth phases. Steroids must be present in their diet for them to reach normal size.
Information from nutritionists suggests that MBA is best included in prawn feeds at levels between 0.1% and 0.2%. This is considerably lower than cholesterol, which is also used as a steroid source but needs to be included at concentrations up to 0.5%.
Bile acids are also known to increase fat utilisation and have been used in both fish (Yellow Tail) and animal (poultry) feeds for this purpose.


  • CAS Number: 81-25-4 (CA); 83-44-3 (DA)
  • Molecular Weight: 408.6 (CA); 392.6 (DA)
  • Solubility: Sparingly soluble in water, soluble alcohol, glacial acetic acid and some organic solvents.
  • Packaging: MBA is packed in either 20kg drums or multi-walled bags. Customer specific packaging can be provided.