The core of the feed industry is feed formulation, and the dynamic potency of feed nutrients is the basis for feed formulation and maximizing utilization of non-staple grain raw material resources, which is the core technology of national feed grain safety and farming industry. In response to the major need, researcher Feng Zhao created a bionic digestion system for monogastric animals and the kits for simulating digestive juices for pigs, chickens and ducks, and invented a bionic digestion technology system for rapid determination of digestible nutrient content of feeds with the characters of “standardized, automated and industrialized”. Compared with the national standard method of animal metabolic experiment, the accuracy of experiment enhanced by 5 times and the determination efficiency increased by 66 times, which provides a fast and effective means for the construction of dynamic database of pig and poultry feed ingredients, the decision of ingredient substitution and the diagnosis of formulation, and the improvement of the accuracy level of ration formulation. The results have been successively transferred 2 national invention patents, won 2 provincial and ministerial awards, and 1 special award of science and technology of Wen's Group, selected as the main technology of the Ministry of Agriculture and Rural Development, and soybean meal reduction and replacement of typical case technology. At present, the monogastric animal bionic digestion system has been promoted to 110 units in 71 research units and enterprises (including 20 listed enterprises) in China, which cover an annual feed production of more than 100 million tons and promote cost saving and efficiency in the livestock industry.