The industrialization of bovine embryo transfer in China has reached the international advanced level

Introduction: China bioengineering development center of the Ministry of science and technology today organized experts to appraise the "Research on the industrialization of bovine embryo transfer technology" project in the field of biotechnology in the 863 national plan Xu Qingyi, director of the development center, commented: "the industrialization of bovine embryo transfer in China has made a breakthrough and reached the international advanced level." Since 1998, the project has been listed in the 863 plan of the state In the past three years, the undertaking units "Xinjiang new science and Technology Institute of biotechnology" and "Animal Husbandry Research Institute of Ningxia Academy of agricultural and Forestry Sciences" have accumulatively produced 5449 embryos and 5272 recipient cows More than 3000 offspring of high-quality cattle have been obtained through "pregnant by abdomen" At the same time, four embryo production bases have been established, including Xinjiang Hutubi embryo engineering center and Ningxia Sifang Bioengineering Research Center, with the capacity of producing 10000 embryos per year Since the birth of the first embryo transfer cattle in the United States in 1951, embryo transfer technology has developed rapidly According to incomplete statistics, at present, the annual output of embryo transfer cattle in the world is more than 350000 However, this technology started late in China, and only in 1982 did China fully master such technologies as surgical transfer, non-surgical transfer and frozen embryo transfer Since 1996, bovine embryo transfer technology has been listed in the key projects of China's national key research program, Ministry of agriculture and the 863 plan, and industrial research has been carried out to make this technology more widely serve animal husbandry Guo Zhiqin, a researcher of Xinjiang Academy of animal husbandry Sciences, was the first to master the technology of bovine embryo transfer in China With his efforts, from the 1980s until now, Xinjiang has transferred more than 20000 recipient cows in more than 30 counties and cities, which is in the leading position in the country, and has established an industrial promotion model suitable for Xinjiang.