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DNA editing sees horned bull father six hornless calves

DNA editing sees horned bull father six hornless calves

Technology
Scientists say they have developed an alternative to the practice of de-horning cattle after a genome-edited horned bull fathered six hornless calves.Researchers at the University of California spent two years studying the offspring after altering the DNA of the father, which they hoped would influence the characteristics of its young. Their work - detailed in the journal Nature Biotechnology - proved successful, with none of them developing horns but otherwise being perfectly healthy.It is hoped the technology could sound the death knell for the unpleasant practice of de-horning, which farmers carry out to protect themselves and other animals from potential harm.Study author Alison Van Eenennaam said genome editing offers a pain-free alternative by introducing a naturally occurring geneti...