Designed to supply key minerals in a rumen dispersible granule that will blend well with most on-farm feed supplements such as kibbled maize, crushed barley/wheat, PKE & maize silage.

MaxiMin Macro contains Optimate™, magnesium - as magnesium oxide and magnesium sulphate, as well as calcium - as calcium carbonate in ratios to meet most NZ dairy farm supplementary requirements – from post-calving (not pre-calving) and for the majority of the season.

Optimate™ is known to bind some common mycotoxins - such as aflatoxins, that can exist in some stored feed or pastures.


  • Ca and Mg included at ratio for optimal post-calving performance

  • Won’t separate out when added to feeds

  • Helps with rumen buffering and reduction of excess rumen ammonium levels

  • Easy to use - free-flowing and dispersible in the rumen

  • High quality & safe sources of Ca & Mg used

  • Independent testing demonstrates high bio-availability of key minerals