There is a way to improve the quality of feed corn

Introduction: corn is an important food, economic and feed crops in China 78% of the total corn demand in China is used as livestock feed It is estimated that feed corn will account for more than 89.5% by 2020 As the main high-energy feed, the nutritional value of common corn is not complete The endosperm is not only low in protein content, but also poor in quality and imbalance in amino acids The lysine content of common corn grain is only 0.23%, while that of livestock and poultry is usually 0.6% - 0.8% The insufficient part should be supplemented by adding more lysine, soybean cake and fish meal, etc It needs about 30000 tons of synthetic lysine as additive every year However, the content of lysine and tryptophan in high quality protein corn grain is about 80% higher than that of common corn The preliminary study shows that this kind of corn can be used in animal feed, which can greatly improve animal production performance, improve feed conversion efficiency and save grain The use of high-quality protein corn can make the amino acids in animal diets more balanced, improve the utilization rate of animal feed protein, reduce the discharge of nitrogen in animal manure, and thus alleviate the environmental pollution caused by breeding industry At present, the application research of high-quality protein maize breeding in China has been at the international leading level, and has made important progress in solving the contradiction between high-quality and high-yield A batch of new combinations with high-quality and high-yield have been bred The yield has increased by 8% - 15% compared with the common maize control group, and the content of lysine and tryptophan in the whole grain has increased by about 80%, achieving the goal of high-quality and high-yield The best variety is Zhongdan 9409, which is cultivated by crop institute of Chinese Academy of Agricultural Sciences After the completion of the project, it is estimated that 10 million mu of high-quality protein corn will be popularized and planted every year, which can reduce the breeding cost of farmers by about 2 billion yuan.