Surrogate sows give birth to 9 cloned pigs and set a world record

New Year's Day, a breeder at the breeding pig farm of Harbin Sanyuan Animal products Industry Co., Ltd., carefully fed six little cloned pigs on January 1. Among them, the bottle photos show two little cloned pigs carefully fed to ensure the healthy growth of the pigs. On the evening of December 23, 2006, the surrogate sow K09, led by Dr. Liu Zhonghua, a professor of Northeast Agricultural University, gave birth to 9 cloned Northeast Min pigs through natural delivery, setting a world record for single litter size of cloned pigs. The 9 cloned pigs are all Northeast Min pigs, and 6 of them are in good health and can be fed within half an hour after birth. Internationally, the litter size of cloned pigs is generally low, with an average of less than 4. This time, a surrogate sow gave birth to 9 cloned pigs through natural delivery, which is unique in the history of cloned pigs in the world. The birth of the cloned Northeast Min pig indicates that the animal embryo engineering laboratory of Northeast Agricultural University has stepped into the international advanced level in the technology of cloned pig.