Dr. Chung Te Lee is currently the head of R&D department of Total Nutrition Technologies (TNT), Co., Ltd., a subsidiary company of the Dachan Greatwall Group. With his expertise not only in development and large-scale production of probiotic product but also in the study of pathogenic mechanism of a variety of animal disease, TNT R&D has successfully announced many feed additives and functional ingredients including probiotic, acidifiers, and fermented peptides to the market. It is a great contribution for the Dachan Greatwall Group together with its customers to move forward an antibiotic-free rearing mode in animal husbandry and aquaculture.