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Gene editing to produce ‘super dad’ livestock

Gene editing to produce ‘super dad’ livestock

Science
Scientists have produced gene-edited animals they say could serve as "super dads" or "surrogate sires".The pigs, goats, cattle and mice make sperm carrying the genetic material of donor animals.The researchers used a hi-tech gene editing tool to knock out a male fertility gene in animal embryos.The animals were born sterile, but began producing sperm after an injection of sperm-producing cells from donor animals.The technique would enable surrogate males to sire offspring carrying the genetic material of valuable elite animals such as prize bulls, said a US-UK team.This would be a step towards genetically enhancing livestock to improve food production, they added.Prof Jon Oatley, of Washington State University's College of Veteri...