The impact of the epidemic. 65438-0952 The experimental farm built by Yangzhou University is not only an important Industry-University-Research base of Yangzhou University, but also a unit integrating feed planting, dairy farming, dairy processing, R&D and sales. Yang Da Yogurt is a resounding signboard of Yangzhou University. Due to the epidemic situation, Yang Da yogurt could not be delivered. Due to the increasingly severe epidemic situation in China, the express delivery in many places has stopped, resulting in the inability to deliver yogurt in Yang Da.