1. Animal modeling materials: Syrian hamsters, weighing around 50-60g; Medication: High sugar bait (formula: sucrose 74%, casein 21%, salt 4.4%, choline 0.1%, concentrated fish liver oil 0.5%).
2. Model making method: Each animal is fed 5-9g of high sugar bait twice a day, and is also fed 1-2 times a week with vegetables and malt to supplement vitamins and maintain animal life. 14-21 days for molding.
3. Principle of modeling: Diet causes animal gallstones.
4. Changes after modeling 14 to 21 days after modeling, obvious stones formed in the gallbladder of animals, and the stone formation rate reached 100% after 22 days.