Used in biomedical research to quantify levels of porcine pepsinogen 3 in biological samples such as serum, plasma, or gastric extracts. Enables monitoring of gastric mucosa health and function in pig models, often applied in studies related to digestive disorders, gut development, and dietary impact on gastrointestinal physiology. Supports research into biomarkers for gastric diseases and evaluation of therapeutic interventions in veterinary and preclinical settings.