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Speciesism

September 16, 2020 - BBC

Gene editing to produce 'super dad' livestock

Gene editing to produce 'super dad' livestock
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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.

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