| China is a large country of pig breeding and pork consumption, with the total output of pork and the per capita pork consumption ranking first in the world for many years. Due to the continuous improvement of people's demand for pork quality and the deepening of research, the pig nutrition research has also experienced a transformation from the initial study of nutrient requirement to the regulation of pork quality, intestinal health, reproductive performance and immunity through nutrition regulation technology. At present, with the continuous progress in research methods such as research model, histology technology, functional molecular nutrition and intestinal health, the research of pig nutrition regulation technology has entered a stage of rapid development. The swine nutrition regulation technologies at home and abroad in recent five years are reviewed, including nutrient requirements （energy, protein and amino acids, minerals and trace elements, additives, etc.） in different physiology period （sow, boar, piglet and growing-finishing pig）, production performance and nutrient regulation, feed nutrition value identification and precision feeding technique, to provide references for further research of swine nutrition regulation technology. |
