对畜产品建立可追溯系统关键技术，动物标识技术、第三方认证、信息在食品供应链中的传递进行阐述。

The key technology of traceable management for foods, including identification of livestock, quality assurance certification and information flow in the whole food supply, were demonstrated.

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近年来，动物虹膜识别有成为一种新的动物标识技术的趋势，对于肉类食品安全控制具有潜在的应用价值。

In recent years, the animal iris recognition tend to become a new animal identification technology, which has potential applications to control the safety of the meat products.

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这是因为大多数动物没有任何标识。

That's because most of the animals lack any identification.

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