Growth hormone releasing factor (GRF) in rats is primarily used in scientific research to study the regulation and secretion of growth hormone (GH) in the endocrine system. It is applied in laboratory settings to investigate the mechanisms of GH release from the pituitary gland, as well as its role in growth, metabolism, and development. Researchers use this peptide to explore its potential therapeutic applications in conditions related to growth hormone deficiencies or disorders. Additionally, it serves as a tool in pharmacological studies to develop and test compounds that modulate GH secretion. Its application is also extended to animal studies to understand the physiological and pathological roles of GH in various biological processes.