Used in research settings to detect and quantify D-lactic acid levels in biological samples, particularly in studies related to fish metabolism and gut health. Helps assess microbial fermentation activity and potential lactic acidosis in aquaculture species. The ELISA format allows for high-throughput, sensitive, and specific measurement, making it valuable for monitoring D-LA accumulation linked to dietary imbalances or intestinal disorders in fish. Widely applied in veterinary research and aquatic nutrition studies.