NEWS: Cloned Cow Meat Enters the Food chain.

新闻：克隆牛肉进入食物链。

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It was strange enough when cloned cow meat entered the food chain, but now one scientist is trying to grow test tube meat in his laboratory.

克隆牛肉进入食物链已经足够奇怪了，但现在一个科学家正试图在实验室里从试管中“长出”肉。

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He said no part of the cow entered the human food or animal feed chain.

他说没有任何牛肉部分进入了人类食物或者动物蓄养供应链中。

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There's been a renewed warning in Britain that meat infected with BSE, or mad cow disease, could still be getting into the food chain.

BBC: Renewed British mad cow disease warning

But it would not likely have spread the disease, since USDA regulations prohibit high-risk parts of the cow, such as brains and spinal cords, from entering the food chain.

CNN: Mad cow case confirmed in California