Experts point out that the birth of cloned cattle will speed up the improvement of animal husbandry varieties in China

Introduction: January 19, 2002 economic daily news: China's first indigenous cloned cattle "committee" was born at 9:25 this evening in Caoxian, a famous animal husbandry production base in Shandong Province Chen Dayuan, a researcher at the Institute of zoology of the Chinese Academy of Sciences, said that the reason why the "Commission" was called the first cloned cow native to China was that the Chinese people had completed the process from the cultivation of cloned embryos to the transfer of cloned embryos in their own country Last year, both Shenzhen and Laiyang, Shandong Province, also bred cloned cattle, but their embryos were all imported from abroad, not the real domestic cloned cattle in China EVT said that the successful reproduction of living somatic cells and transfer of cloned cattle by using China's embryo production and transfer technology indicated that the comprehensive ability of China's cloned embryo engineering technology system reached the world's advanced level EVT "committee" is only the forerunner of the first batch of domestic cloned cattle in China A dozen other cloned cattle will be born in the next 20 days, with the largest number of single batch cloned cattle in China "The construction of cloned bovine embryos started in March last year," Chen said In April, after 135 cows were implanted with cloned embryos, 27 cows were pregnant, with a success rate of 20% In addition, twins and triplets were included in the pregnant cows Later, the cattle had miscarriages and 12 cows were still pregnant " Professor Ma Shiyuan of Shandong Academy of Agricultural Sciences, who is responsible for embryo transfer technology of EVT, said that the success of the experiment of cloning cattle is of great significance to animal husbandry, especially beef cattle and dairy cattle industry, and many excellent varieties will be copied in large quantities In his opinion, at present, most of the improved livestock breeds in China are still hybrid breeding, which is too slow Using clone technology can speed up the improvement process of animal husbandry in China more effectively Chen Dayuan, who is also a consultant of China Giant Panda Breeding Technology Committee, believes that the success of cattle cloning will also provide experience for cloning endangered species "Cloning technology could be the only hope for endangered species, such as China's giant panda, to continue their race," he said EVt