1978 went to Romania to study poultry breeding. After returning to China, a national training course for poultry breeding experts was held. President of Poultry Quality Traits Research Association, invited judge of National Invention Award, member of World Poultry Research Association. He has participated in and presided over Shandan Army Horse, Beijing White Chicken and Beijing Yellow Chicken. Jingxing broiler 100,1kloc-0/,102, court broiler, etc. , also participated in the breeding of Inner Mongolia sheep, China wool rabbits and meat rabbits, and cultivated Jingchuan white chickens and promoted them. Especially, the dw gene was introduced into high-quality broilers, and various China dwarf strains D 1 (recessive white feather), D2, D3, D4 (yellow feather), D5 (hemp feather), D6 (Kuroha) and Dg (short-legged fatty chicken) were bred, all of which contained the dw gene, which saved more than 20% of feed, and had high reproductive rate and strong disease resistance. These strains are unique to China, and as supporting maternal lines, they are innovative projects to improve local fine-bred chickens in China and protect chicken breeding resources. Participated in the establishment of the first factory chicken farm in China-Hongxing Chicken Farm and Original Chicken Farm, and initiated and successfully tested the "double selection breeding method". It is still an advanced breeding method in the world, and its efficiency will be doubled in conventional breeding. Breakthrough progress has been made in promoting and protecting the fetus of military horses by using sex hormones. He has successively won *** 1 1 scientific and technological achievement award, two national utility model patents, one national invention patent application, and one international highest honor gold medal. These achievements have been extended to 28 provinces, municipalities and autonomous regions in China, with economic benefits of at least 654.38 billion yuan. There are 76 articles published in domestic and foreign journals, such as "Developing Ecological Agriculture and Animal Husbandry with Poultry as the Leading Factor, Establishing and Exploiting the Earth Biosphere", which were exchanged at international conferences twice. The main works include "Efficient Production Technology of Jingxing Broiler", "Efficient Production of Broiler" and "Application of Poultry Quality Traits in Breeding and Production in China", with a total of more than 6,543,800 words, which has a superb analysis on the breeding and industrial production of poultry, especially laying hens and broilers.