Used in biomedical research to measure progesterone levels in rat biological samples such as serum, plasma, or tissue homogenates. This ELISA kit enables accurate quantification of progesterone, supporting studies in reproductive physiology, endocrinology, and fertility. It is commonly applied in experiments assessing ovarian function, pregnancy progression, hormonal regulation, and the effects of drugs or environmental factors on the endocrine system. The assay is sensitive, specific, and suitable for high-throughput analysis in laboratory settings.