Introduction: Since the birth of Dolly, the world’s first somatic cell clone sheep, in the United Kingdom in 1996, cloning technology seems to have become more and more popular. Many scientists in various countries have mastered this technology, and many scientists are ambitious. The goal of the industrialization of cloned animal products has advanced. In China, several scientific institutions have been able to clone animals and allow many cloned animals to survive. Professor Chen Dayuan, chief researcher of the Institute of Animal Sciences of the Chinese Academy of Sciences, and Professor Li Ning of the China Agricultural University, who was elected to the Chinese Academy of Engineering in December 2007, have successfully cultivated cloned cattle. Zeng Xianyi, academician of the Chinese Academy of Engineering and director of the Shanghai Institute of Medical Genetics, also cloned cattle. And sheep's work steadily progresses. No matter the drugs or steaks, the ultimate goal of cloning technology is to send the manufactured products into people's bodies. Therefore, the question of “how far away from the table the clones are†will always attract people’s concern. After the FDA approved the safety of some cloned animal foods, the Chinese public began to discuss the issue of whether the cloned food can be eaten. With regard to the safety of cloned foods, Professor Li Ning of China Agricultural University said that there are no relevant standards in the country at the moment. Leaders of related departments will mention standard issues, but there is still a long way from formal discussion. "Unlike the situation in China and the United States, the U.S. industrial sector will ask the FDA for the requirements for the establishment of cloned animal food standards." Professor Li Ning said that the industry department has been appealing for five to six years, and the FDA standards and approvals for safety Come late. For this reason, the industrial sector is extremely dissatisfied. When he attended academic conferences abroad, he often heard complaints from foreign experts. However, at home, various aspects of the production of animal products belong to different departments and management, and it is difficult for the departments to take the initiative to "fight". However, Professor Li Ning believes that currently there is a "long road" to the industrialization of Chinese cloned animal products. The reason is not the lack of safety review standards, because the safety standards can fully refer to existing foreign standards. He believes that the real distance lies in technology. "Individual research groups can clone and it is impossible to realize industrialization." Professor Chen Dayuan is also not "optimistic." His own research on cloned cattle has not yet reached the desired "efficiency." In 2002, Chen Dayuan’s team produced the first batch of cloned cattle. Fourteen successfully cloned cattle only survived five calves. The first cloned cattle died shortly after birth. Of the 31 cloned cattle that had succeeded in Xinjiang in 2003, only 12 survived. Not long ago, the cloned cattle cultivated by a research team of the Chinese Academy of Sciences all survived. This is almost a "miracle" in cloning experiments. Chen Dayuan said that the reason for this "exception" is being studied by scientific researchers. Despite the "exceptions", the problem of low survival rate of cloned animals is still the bottleneck of the current industrialization of cloning technology. If there is no new solution, the expectation of industrialization may be premature. However, Chen Dayuan believes that Japan and the United States have recently implemented the "induced pluripotent stem cells" technology. If this technology is applied to clones as soon as possible, industrialization may come sooner. "As long as it is a cloned animal that survives healthy, it is safe to use it as a food, unlike conventional animals. The problem is that our technology has not been able to produce cloned animal products in bulk," said Chen Dayuan. "At the beginning of 1980, foreign mammals cloning research went very fast. The Chinese scientific community did not catch up with the pace of cloning until 1990," said Chen Dayuan. However, after the 1990s, the progress of Chinese cloning technology immediately entered acceleration, and the cloning of animals such as rabbits, mice, pigs, cows, sheep, etc. was realized by Chinese scientists. Chen Dayuan described this period as "a peak." Since 2000, as cloning technology has matured, scientists around the world have begun to explore the industrialization of cloning, and Chinese scientific researchers have also joined efforts to achieve industrialization. According to many foreign researchers, Chinese people's wisdom and courage can often create sensational results. In the field of industrialization of cloned animal products, China's performance is also worth looking forward to. Author: Huang Qi Calacatta Gold Mosaic Printing
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Since the birth of Dolly, the world’s first somatic cell clone sheep, in the United Kingdom in 1996, cloning technology seems to have become more and more popular. Many scientists in various countries have mastered this technology, and many scientists are ambitious and have grown towards cloning. The goal of the industrialization of animal products has advanced.