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Chinese scientists clone mad cow-resistant calf

Written by: Staff
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BEIJING, Apr 26 (Reuters) Chinese scientists have succeeded in cloning a cow with gene cells resistant to mad cow disease, the official Xinhua news agency said today.

The birth of the 55-kg (121-lb) calf in the eastern province of Shandong comes three years after a team led by now-disgraced South Korean scientist Hwang Woo-suk cloned cows with a protein structure resistant to bovine spongiform encephalopathy (BSE).

''Scientists with the Laiyang Agro-Science Institute in Shandong said they used gene-transplant technology to introduce the genes to the calf cloned from cells of an adult cow,'' Xinhua said.

The research was led by professors Dong Yajuan and Bo Xuejin -- who succeeded in cloning China's first and second healthy cows in 2001 -- in collaboration with a Japanese university.

State television reported that further tests would be required on the calf as it grows to verify the effectiveness of the transplanted genes.

REUTERS DKS PC1715

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