German expert: Increasing the amount of L-tryptophan in feed can improve the average daily gain of pigs

Dr. Friedhelm Koch from Germany gave a keynote report on the nutritional and economic value of adding L-tryptophan to swine feed. Dr. Koch has been involved in the application of amino acids in animal feed for more than 30 years and has accumulated a large amount of experimental data and application experience. He first reviewed the use and research history of tryptophan in the past two decades, and summarized the problems of adding tryptophan in pig feed in recent years. Due to different production conditions and experimental conditions, the current research is The recommended amount of tryptophan added to pig feed is quite different, and the gap is very large, which will cause great misunderstanding of actual production, and is not conducive to the promotion and use of tryptophan. Through experimental research under different conditions in different countries, Dr. Koch believes that as the first limiting amino acid of pigs, tryptophan, tryptophan plays a very important role in the feed of piglets and finishing pigs. For the total demand for livestock tryptophan, it is necessary to consider survival and supplementary growth. Based on a large number of basic and field experiments in the Netherlands and Germany, the ratio of different lysine and tryptophan levels has a great impact on the performance of piglets and growing pigs. Different protein levels have a great impact on the addition of tryptophan. The increase in the ratio of L-tryptophan to macromolecular neutral amino acids in low-protein diets can promote feed intake. The increase in the amount of L-tryptophan in the feed can significantly improve the average daily gain of pigs and also increase the feed conversion rate of animals. Based on these findings, he proposed the most appropriate ratio of lysine and tryptophan in nutrients. JcK China Feed Industry Information Network - based on feed, serving animal husbandry

In response to the century-old farming situation in China, Dr. Koch calculated the growth performance and recovery costs of pigs raised in different types of diets. Dr. Koch believes that the addition of tryptophan to the improvement of animal growth can make the cost of recovery more easy, and the addition of sufficient tryptophan can maximize farm income. In actual production, the most important thing is to find the most economical and most suitable addition ratio of L-tryptophan. JcK China Feed Industry Information Network - based on feed, serving animal husbandry