If you're looking for a reliable and fast way to get a sperm count, evaluate IgG in serum/plasma or colostrum, and do it all without breaking the bank, then we have an analyzer for you. The DVM Rapid Test™ is a small portable spectrophotometer which has been calibrated to measure sperm concentration in raw [neat] semen and IgG levels in serum/plasma or colostrum of several species. A standard is included for the unit to 'self-zero'. An LED light source is used and the machine is powered by three AA batteries. Sperm concentration measurements take less than one minute, while the IgG assays require an incubation period of 10 minutes. Testing is simple, and the mini pipettors, cuvettes, reagent and instructions are included with purchase of the unit.