The 591 Densimeter may be upgraded to measure both sperm concentrations and foal IgG levels. Once loaded, the operator may choose between sperm concentration and foal IgG measurements by simply selecting the desired operation. Current 591a owners may purchase the 591a Densimeter Foal IgG Upgrade (IGG-101-591A-UG) Upgrade kit includes the IgG calibration CD, users guide, and Foal IgG Poster.
A Foal IgG Test Supply Kit is required and purchased separately. Each kit provides enough supplies to test 10 foals.