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At present,羊毛商丘 my country has also made important progress in "molecular design breeding of animals" and "efficient preservation and innovative utilization of germplasm resources based on modern reproductive technology". Pictures of farm animals appeared on the big screen. Qiao Shiyan pointed to the pictures and said that the team of Professor Tian Jianhui of China Agricultural University has realized the simultaneous estrus and simultaneous delivery of animals through the research of precise ovulation technology. Through this series of technologies, the efficient preservation and innovative utilization of animal tissue resources can be realized.