Used in veterinary research and canine endocrinology studies to measure β-endorphin levels in dog blood or tissue samples. Helps investigate stress responses, pain regulation, and opioid system activity in dogs. Commonly applied in studies related to anesthesia, exercise physiology, behavioral disorders, and chronic disease conditions. Supports research into the role of endogenous opioids in canine health and disease, enabling better understanding of pain management and stress-related pathologies in veterinary medicine.