Cattle

Meet Cosmo, a Bull Calf Designed to Produce 75% Male Offspring

July 23, 2020
Scientists Use CRISPR Technology to Insert Sex-Determining Gene

Scientists at the University of California, Davis, have successfully produced a bull calf, named Cosmo, who was genome-edited as an embryo so that he’ll produce more male offspring. The research was presented in a poster today (July 23) at the American Society of Animal Science meeting.