Yongfeng Liu persusded his Ph.D. in Animal Science, Northwest A and F University; Chinese Academy of Agricultural Sciences.He currently working as Associate Professor in College of Food Engineering and Nutritional Science, Shaanxi Normal University.He also awarded with Youth star award of science and technology in Shaanxi province, PR. China. Shaanxi science and technology award, PR. China, the first prize, Ranked 12, 2012. Chinese agricultural science and technology award, the first prize, Ranked 19, 2011.His research interests are as follows : Animal Production Science and Nutrition.