*Recently, the research team of Professor Zhaoxin of Nankai University and the Institute of animal husbandry and veterinary medicine of Tianjin Academy of Agricultural Sciences used the automatic operation cloning technology to research, and a common "surrogate" sow was pregnant for 110 days and gave birth to 7 cloned purebred Landrace pigs *, which is the first cloned animal in the world to complete the whole cloning process by automatic operation.
By sunlingling, liuyaowei, qiaorenming
It is reported that the team's first batch of robot operated cloned pigs have been used in breeding and production. Nine of the 13 healthy cloned pigs have been kept alive, with a seed retention rate of 69%, which is twice the 35% rate of ordinary breeding pigs. The relevant work results of the team showed that the number of piglets per surrogate sows increased from an average of less than 5 artificially cloned pigs to 24 in two batches of robotic and automated cloned pigs, with an average of 8 piglets per litter, an increase of more than 60%.
China has a huge demand for breeding pigs. Every year, 13million sows and more than 300000 boars are renewed. The automatic operation cloning technology provides a way for a large number of original breeding pigs of grandparents to be expanded and the cloning technology to be widely used in breeding pigs and practical production applications, which provides a solution for China to quickly "copy" a large number of excellent animal breeds and solve the problem of "neck sticking" in breeding pigs.
It is understood that as early as 2017, Professor Zhaoxin's scientific research team studied the first cloned pig with robot "cutting", but the previous operation process was not the whole process of robot automation; The cloned pigs "bred" this time have realized the automatic operation of the whole process. The team has made a breakthrough from robot operation to automatic operation, further expanding the leading edge of China's cloning technology in the world.