Used in research settings to quantify diamine oxidase (DAO) enzyme levels in rabbit biological samples such as serum, plasma, or tissue homogenates. This kit is particularly valuable in studies related to histamine metabolism, as DAO plays a key role in breaking down extracellular histamine. It is commonly applied in immunological and inflammatory research, especially when investigating conditions associated with histamine imbalance, gastrointestinal disorders, or allergic responses in rabbit models. The ELISA format allows for sensitive and specific measurement, enabling researchers to monitor DAO activity changes under experimental conditions, assess drug effects, or evaluate disease progression.