Seminar on research and application of new lysine

Introduction: focus on academic discussion, strengthen the research and application technology of new lysine products promotion seminar was held in Nanning In order to promote the scientific research and marketing of lysine, the "2005" jointly sponsored by Changchun Dacheng Group, Sichuan Provincial Animal Science Company and Sichuan Academy of Animal Nutrition Research Institute was held Seminar on research and application of new lysine was held in Jindu Hotel, Nanning on July 22, 2005 In this meeting, the technical development and application prospect of lysine were discussed Liang Jihao, director of Guangxi feed office, Kuang Shengyao, general manager of Sichuan Academy of Animal Sciences, Huang Dexing, deputy general manager of Sichuan Academy of Animal Sciences, Zhang Fusheng, general manager of marketing center of Changchun Dacheng Group, Qiao Shiyan, Ph.D of national feed engineering technology research center, Jia Dongshu, Professor of Changchun Dacheng Group, Sichuan Agricultural University Professor Zhou Xiaoqiu, tutor of doctoral students and other leaders attended the meeting and made wonderful keynote speech More than 100 large and medium-sized feed enterprises from all over Guangxi, such as Zhengda, hope, Tongwei, Yangxiang, Wanqian, twins, Liyuan, peterhan, HongPai, Liuxing and other companies, 148 presidents, chairmen, general managers and technical directors attended the meeting The technical research of this meeting is highly instructive and the overall level is high Especially, the performance and advantages of 65% lysine are emphasized and promoted The academic atmosphere is strong, and it is warmly welcomed and generally praised by the delegates Huang Dexing, deputy general manager of Sichuan livestock feed Co., Ltd., presided over the meeting Mr Huang first gave a welcome speech, expressing warm congratulations on the successful holding of the "2005 lysine research and application technology seminar"! Then I extended a warm welcome to all the guests attending the meeting Kuang Shengyao, assistant to the president of Sichuan Academy of Animal Sciences, chief researcher and chairman of Sichuan Academy of Animal Sciences, made a wonderful special report on "analysis of recent market and market trend of lysine" Mr Kuang's report first describes the current market situation of lysine in China, and summarizes the market situation since 2000 Since, the market price trend of lysine in China, the market share of domestic lysine and imported lysine, the usage of lysine in domestic market and the increase of production capacity of domestic lysine producers have been statistically analyzed The report points out that the price of domestic lysine has always fluctuated greatly, the market share of domestic lysine and imported lysine is changing every year, the market share of domestic lysine is increasing year by year, and has increased to 70% in 2005 The report summarizes three outstanding characteristics of the current lysine market in China: first, the domestic lysine consumption has increased from 70000 tons in 2000 to 200000 tons this year, and the domestic production will reach 500000 tons Supply exceeds demand, global production is surplus, supply is abundant, and market competition will be more fierce; second, the proportion of domestic acid rises rapidly; third, the success of research and development of new lysine of Dacheng Group The advantages of 65% new lysine compared with 98.5% traditional lysine are described in the report The advantages are as follows: 1 Manufacturers have obvious advantages in cost, energy, environmental protection, etc The recovery rate of ammonia is high, water and energy are saved, no purification, no decolorization and less pollution, which is beneficial to environmental protection 2 The price advantage of feed enterprises is obvious, with a discount of about 2000 yuan per T, which is conducive to reducing production costs and enhancing the competitiveness of enterprises Lysine sulfate also increased the digestibility of protein and lysine Therefore, the development of lysine additives from the traditional type to the new type will be the general trend in the future The report then introduces the improvement of the production capacity of Dacheng Group It was put into production in May 2000, with the output of 15000 tons in that year, 40000 tons in 2001, 80000 tons in 2002, 120000 tons in 2003 and 240000 tons in 2004 Through technological transformation and innovation, Dacheng Group's acid production rate is 14 → 17%, sugar conversion rate is 45 → 65%, and fermentation time is 60H → 40H The annual output of this project can be 320000 tons Currently, it produces 20000 tons of 65% lysine sulfate and 10000 tons of 98.5% lysine hydrochloride every month, of which 80000 tons will be exported to the international market and 65% lysine sulfate has been sold to the European and American market Dacheng Group has become one of the largest lysine manufacturers in the world Next, the market prospect of lysine in the second half of the year is forecasted It is concluded that the market of lysine in the second half of the year will maintain a stable, moderate and stable trend, and the price of lysine in the domestic market may rebound and rise in a phased and small range At the end of the report, the situation of Sichuan livestock feed Co., Ltd was introduced Founded in 1985, Sichuan livestock feed Co., Ltd is a high-tech joint-stock enterprise integrating scientific research and development, production and operation, technical services, import and export international trade, The company has established extensive business contacts and trade cooperation with more than 2000 feed and animal husbandry enterprises in more than ten provinces, cities and autonomous regions In 2004, the company produced and sold 25000 tons of various premixes and additives, with an output value of 360 million yuan In the first half of this year, the company produced and sold 18000 tons of various premixes and additives, with an output value of 210 million yuan, and is expected to break through 400 million yuan in the whole year The company has won "Sichuan high tech enterprise", "China large feed enterprise", "national top 100 feed enterprise", "national advanced collective of feed industry scientific and technological progress", "AAA credit enterprise of Agricultural Bank of China", "national customs convenient customs clearance unit" and other honors The company is the general agent and distributor of 98.5% lysine hydrochloride, 65% lysine sulfate and 98.5% threonine of Changchun Dacheng Group in Southwest China, Guangxi and Xinjiang The company is willing to establish more and more extensive contacts with its customers and work together to contribute to the development of China's animal husbandry Dr Qiao Shiyan, National Feed Engineering Technology Research Center, made a report on "new amino acid products and new progress in amino acid nutrition research" This paper focuses on the application experiment of 65% lysine, a new amino acid product, on pigs The data curve is used to explain the bioavailability of 65% lysine, the effect of different addition of 65% lysine and 98.5% lysine on daily gain of piglets, the effect on feed intake of pigs and the effect on feed conversion efficiency of pigs The report then describes the new findings of amino acid nutrition needs research, mainly introduces the new progress and the best ratio of lysine and threonine nutrition needs research, that is: 1 When the initial weight of pig is 8.6kg, the true digestible threonine content of the same day is 120% of NRC, that is, 1.03%, the maximum daily gain of pig; 2 The optimal immune function of weaned piglets requires more threonine than the maximum growth requirement 3 When threonine / lysine is 0.70 in 30-120kg pig diet, the maximum daily gain is obtained 4 When threonine / lysine is 0.70 in 30-120kg pig diet, the most appropriate feed conversion efficiency is obtained 5 30-120kg When threonine / lysine is 0.70 in pig diet, pigs get the best economic benefits The report then describes the role of digestible amino acids in the preparation of diets and the existing problems First of all, experiments show that the preparation of diets with digestible amino acids can improve the growth performance of pigs and reduce the cost Then, the problems in the utilization of digestible amino acids in China are discussed, that is, the data of digestibility of amino acids are incomplete, and the research data of digestible amino acids are too few The report then describes the progress of the research on the preparation of low protein diets with synthetic amino acids When the protein level of diets is reduced by 2 percentage points, 1 By adding synthetic lysine to diets, the protein level of diets can be reduced by 2 percentage points without affecting the production performance of pigs The thickness of carcass back fat and the area of eye muscle will be slightly reduced, but no significant influence 2 When the dietary protein level is reduced by 2 percentage points, the added amount of synthetic lysine should be 0.15% - 0.2% 3 from the current experimental study, the dietary protein level of pigs is reduced by 2 percentage points, Whether or not other amino acids are added or not depends on the balance of amino acids in the diet If you want to ensure the carcass quality, you'd better add about 0.08% methionine and 0.05% threonine When the protein level in the diet is reduced by 3%, 1 by adding synthetic amino acids to the diet, the protein level in the diet can be reduced by 3% The results showed that the content of synthetic lysine should be 0.2% - 0.3%, not less than 0.2% 3 From the current experimental study, the protein level of pig diet should be reduced by 3%, At least threonine and methionine should be added, and tryptophan may be added The amount of tryptophan should be determined according to the balance of amino acids in the diet When the protein level in the diet is reduced by 4 percentage points, 1 when the protein level in the diet is reduced by 4 percentage points, the research results are inconsistent Whether the production performance of pigs is affected depends on the type and quantity of synthetic amino acids added If we want to reduce the dietary protein level by 4 percentage points, the added amount of synthetic lysine should not be less than 0.3%, threonine, tryptophan and methionine must be added, and the added amount should be calculated according to the ideal protein model 3 Reduce the dietary protein level of finishing pigs by 4 The carcass quality is greatly affected by percentage points Therefore, it is not suitable to reduce the daily protein level by 4 percentage points in the fattening stage 4 Whether it is necessary to add other amino acids, such as isoleucine and valine, in addition to the first four restrictive amino acids, should be further studied when the protein level of the diet is reduced by 5 percentage points Reducing dietary protein content can reduce excretion of fecal nitrogen and urine nitrogen For every percentage point of reducing dietary protein, the excretion of fecal nitrogen can be reduced by 8.4% 2 Properly reducing dietary protein level does not affect nitrogen digestibility 3 In order to effectively reduce the excretion of fecal nitrogen and urine nitrogen, sufficient synthetic amino acids must be supplemented according to the degree of reducing dietary protein In general, 1 The supplementation of L-lysine 0.15% - 0.2% can reduce the protein level of the diet by 2 percentage points without affecting the production performance, carcass quality and nitrogen digestibility of pigs, and can reduce the excretion of fecal and urine nitrogen by 15% At this time, the supplementation of L-lysine 0.05% is better The supplementation of L-lysine 0.2% - 0.3% can reduce the diet by 3% It can reduce the excretion of fecal and urine nitrogen by about 25% without affecting the production performance and nitrogen digestibility of pigs The carcass quality will slightly decrease, but not significantly At this time, at least 0.1% threonine and 0.08% methionine should be supplemented Whether tryptophan should be added or not depends on the balance of amino acids in the diet 3 When the protein level in the diet is reduced by 4% or more, In addition to adequate supplementation of lysine, threonine, tryptophan and methionine, isoleucine and valine should be added according to the ideal amino acid balance mode depending on the composition of the diet Sometimes, histidine supplement may be necessary Finally, the report will explain