Used in biomedical research to measure levels of polypeptide YY (PYY) in rat samples, this ELISA kit enables the quantification of PYY, a gut hormone involved in appetite regulation and energy balance. It is widely applied in studies related to obesity, feeding behavior, gastrointestinal function, and metabolic disorders. The assay provides a sensitive and specific method to detect PYY concentrations in plasma, serum, or other biological fluids from rats, supporting research in endocrinology and neurogastroenterology.