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BEIJING - Chinese scientists have cloned three “super cows” able to produce 18,000 litres of milk per year and over 100,000 litres of milk in their lifetimes, a feat that may help reduce China’s dependency on imported dairy cows. The milk produced is no different from that produced by the clone’s originals, according to an expert involved in the experiment. Once the cloned calves reach two years of age, they can start producing milk for the market, he added. To clone the animals, scientists from the Northwest University of Agricultural and Forestry Science and Technology took somatic cells from the ears of highly productive Dutch Holstein Frisian cattle and placed them in surrogate cows, according to a news release from the university. The technique, known as somatic cell nuclear transfer, was the same used to create Dolly the sheep in 1996, the world’s first cloned mammal. The three calves were born in Lingwu city, Ningxia Hui autonomous region. The first calf was born on Dec 30 via caesarean section. It weighed 56.7kg and shared the same shape and patterning as the cow it was cloned from. After reaching maturity, the clone is expected to produce 18,000 litres of milk per year. In comparison, the average cow in the United States produces about 12,000 litres of milk annually, according to data from the US Department of Agriculture. Mr Jin Yaping, the project’s lead scientist, said that cloning “super cows” would allow China to preserve its best dairy breeds and avoid the biosecurity risk presented by importing live cows from other countries. China currently imports around 70 per cent of its dairy cows. https://www.straitstimes.com/asia/east-asia/chinese-scientists-successfully-clone-super-cows
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