Background/Introduction: This Quantitative Sandwich ELISA kit is only for in vitro research use only, not for drug, household, therapeutic or diagnostic applications. This kit is intended to be used for determination the level of 1,25-DVD3 (hereafter termed analyte) in undiluted original Horse body fluids, tissue homogenates, secretions or feces samples. This kit is NOT suitable for assaying non-biological sources of substances.