According to Xinhua News Agency, the first batch of somatic cell cloned cow Niuniu, which was born in 2012 with the fat fat connexin gene, successfully bred offspring. The second generation “genetically modified calf†had normal signs and health after birth. This means that China's application of somatic cell cloning technology has taken a key step in breeding new breeds of beef cattle. The Chinese people are expected to eat homemade "snowflake beef" as soon as possible. The head of the National Special Project on Genetically Modified “High Quality and Highly Effective Genetically Modified Beef Cattle New Variety Breeding,†said Ni Hemin, a professor at the Beijing Agricultural College, said that this second-generation genetically modified calf was hard-won, and her mother, “Niu Niâ€, was born on August 1, 2012. At the time of birth, he was unable to take the initiative to eat. After being carefully taken care of by team members, Niuniu reached sexual maturity and could breed offspring. On November 2, 2014, the team prepared Qinchuan Cattle Frozen Semen supplied by the National Animal Husbandry Station Germplasm Resources Protection Center for “Niu Niu†and artificially inseminated it to complete breeding. Finally on August 28 this year, the second generation of "genetically modified calf" was born. As of September 12, the calf's various signs were normal and healthy. Ni Hemin said that this proves that China's technology has achieved three major breakthroughs: First, transgenic cattle obtained through somatic cell cloning techniques have normal breeding functions; Second, through the detection of calves, containing fatty adipose junction protein genes The gene has been multiplied in its body and has been stably integrated, indicating that the gene can be passed down from generation to generation. Third, no genetically modified cattle have been found to have adverse effects on the surrounding environment. This shows that the somatic cell cloning technology production system can be used for the safe production of transgenic animals. The project successfully prepared a transgenic cloned cow carrying the fatty acid-binding protein gene, and promoted the improvement of Qinchuan cattle breed, one of the five major cattle in China, laying the foundation for the cultivation of high-grade high-grade beef cattle. (Li Jiangtao) The electrification principle of Smart Film and Privacy Dimming Glass
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It is expected that the first batch of genetically modified cloned cattle will be successfully bred and produced by domestically produced “Snowflake Beef†as soon as possible.