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Hundreds of livestock breeds have gone extinct—but some Australian farmers are keeping endangered breeds aliveIt took thousands of years to develop the world's extraordinary range of domesticated farm animals—an estimated 8,800 livestock breeds across 38 farmed species. But this diversity is dwindling fast.
Development of transgenic farm animals will allow more flexibility in direct genetic manipulation of livestock. Gene transfer is a relatively rapid way of altering the genome of domestic livestock.
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