A porcine model refers to the use of pigs in research studies as a model organism for various scientific fields such as biomedical research, pharmacology, and toxicology. Pigs are often chosen as a model due to their anatomical and physiological similarities to humans, making them valuable in studying human disease processes, drug testing, surgical procedures, and tissue regeneration. The use of porcine models allows researchers to better understand human biology and develop new medical treatments and therapies.