China News Service, May 31 (Sun Lingling, Liu Yaowei, Qiao Renming) Recently, the research team of Professor Zhao Xin of Nankai University and the Institute of Animal Husbandry and Veterinary Medicine, Tianjin Academy of Agricultural Sciences used automated cloning technology to study, and an ordinary "surrogate" sow was used. At 110 days of pregnancy, 7 cloned purebred landrace pigs were born. This is the first cloned animal in the world to complete the whole process of cloning through automated operations.
According to reports, the team's first batch of cloned pigs operated by robots have been used for breeding and production. 9 of the 13 healthy cloned pigs have retained their seeds, with a retention rate of 69%, which has doubled compared with the 35% retention rate of ordinary breeding pigs. .
The team's related work results show that the number of litter of single-parity surrogate sows has increased from an average of less than 5 artificially cloned pigs to a total of 24 pigs in two batches of 3 litters with robotic and automated cloned pigs, with an average of 8 piglets per litter. more than 60%.
There is a huge demand for breeding pigs in China, with 13 million breeding sows and more than 300,000 breeding boars replaced each year.
The automatic operation cloning technology provides a way for the large-scale expansion of the original breeding pigs of the grandfathers, and the large-scale promotion of the cloning technology for breeding pigs and practical production applications. Problems provide solutions.
It is understood that as early as 2017, Professor Zhao Xin's scientific research team studied the first cloned pig "operated" by a robot, but the previous operation process was not a full-process robot automated operation; The automatic operation of the process, the team's breakthrough from robot operation to automatic operation, further expanded the leading advantage of China's cloning technology in the world.
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