On November 5-6, 2020, the 2020 Nanning·Fourth East-East Forum and the 2020 Guangxi Animal Nutrition and Feed Academic Annual Conference was held in Nanning Liyuan Grand Metropark Hotel. This meeting is the first meeting after the "East East Forum" has been upgraded to the "2+N" model. It is jointly organized by the Guangxi Feed Industry Association, the Animal Nutrition and Feed Branch of the Guangxi Animal Husbandry and Veterinary Society, the Guangdong Feed Industry Association, and the Shandong Feed Industry Association. The meeting was supported by the China Feed Industry Association and the Department of Agriculture and Rural Affairs of Guangxi Zhuang Autonomous Region. about 600 people from well-known experts, scholars, representatives of feed industry associations of brother provinces and cities, business managers and scientific and technical personnel gathered together, and about 340,000 colleagues who could not be there participated in the simultaneous webcast. The conference was launched around the theme of research and development and practice of bio-fermented feed under the background of feed prohibition and breeding reduction.