Traditionally,the food safety net has targeted the intermediary stages of the food chain—when food is processed from its raw state—rather than the initial or final stages of the food chain,where food is grown or consumed. But a spate of outbreaks of food-borne diseases has highlighted the fact that many breaches of food safety have their origins at the very beginning of the food chain. We need to strengthen every single part of the food chain.One weak link,es- pecially near the beginning, can make the whole food chain collapse. China has paid great attention on the quality and safety control over the food sources and raw material. By
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