The research and development project of microbial feed additive new products is a project of the Beijing Municipal Science and Technology Commission's 2006 Key Technology Competitiveness Improvement Project. This subject was presided over by Da Bei Nong Technology Group Co., Ltd., and through the way of open tendering and invitation, it cooperated with Feed Engineering Center of China Agricultural University, Beijing Institute of Nutritional Resources (Beijing Bailin Kangyuan Biotechnology Co., Ltd.), and China Academy of Agricultural Sciences. Institute of Animal Husbandry and Veterinary Medicine, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, and the establishment of an enterprise-university-research and high-efficiency innovation alliance that focuses on enterprises as the main body, completed in two years The contents specified in the project task book have reached the corresponding assessment indicators.
After two years of work, the Innovation Alliance has established a strain breeding model for microbial feed additives. Through directional screening of tens of thousands of bacterial strains, 11 strains with good safety and stress resistance have been obtained. The selected strains were certified by the National Agricultural Microbial Culture Collection, the China General Microbiological Culture Collection Center, and the National Industrial Microorganism Collection, and 11 bacterial collection certificates. Eleven trials producing suitable strains were tested on piglets and the daily gains increased by 5.5-30.2% compared to the control group. The diarrhea rate decreased by 30.3-69.7%, and the feed weight ratio decreased by 2.2-9.3%. Compared with the antibiotic group, the daily gain increased. There was no significant difference in indicators such as weight, diarrhea rate, and survival rate. The broiler feeding test and the blank control group increased the daily gain by 1.2-10.2%, the feed weight ratio decreased by 7.1-7.5%, and the survival rate increased by 6.9-7.3%. The daily fat gain of the growing-finishing pig trial and the blank group increased by 2.9-4.2%, the feed-weight ratio decreased by 5.5-7.4%, and the diarrhea rate decreased by 25.8-29.4%. The project also applied for 2 national invention patents, published 12 academic papers, and participated in the formulation of 3 national standards.
The development of microbiological feed additives is mainly aimed at the development of healthy breeding in the suburbs of Beijing, and the production of pollution-free, green and organic livestock and poultry products. In line with the principle of market demand in the aquaculture industry, the research team has also used the team and mechanism of rural science and technology coordinators to increase demonstrations. Points, holding technical training sessions and other forms to increase the strength of healthy aquaculture technology and product promotion, popularize the concept of healthy breeding and breeding mode. The research results of the project will effectively promote the development of the healthy aquaculture industry in Beijing.
Although the proportion of Beijing's aquaculture industry is smaller in Beijing's GDP, it does not mean that Beijing's aquaculture industry has no competitive advantage. Beijing is the most concentrated place for agricultural science and technology resources in China. In the process of modern aquaculture, Beijing can make full use of the advantages of scientific and technological resources to establish new competitive forces in the high-end areas of aquaculture production and service. Research and development of new feed additives is an important direction.
The implementation of the project has not only studied the key technologies for the production of microbial feed additives and the supporting use technologies of the products, but has also initially explored the government-led, enterprise-based, agricultural technology innovation alliance with the integration of universities and research institutes. Compared with developed countries, our overall investment is low, resources are decentralized, and we basically rely on imitation. Individual enterprises or research institutes cannot compete with each other and lag far behind them in key technologies for animal husbandry. The task force uses a team of innovative alliances to jointly study key technologies for biological feed additives, and through enterprise ripening and application promotion, fully realizes benefit sharing, and proves that, under the current level, independent innovation of agriculture by the industry-university-research-and-research alliance is a feasible and important approach. (Song Weiping)