Uruguay has a microchipping system for cattle, which costs $20 a head.

乌拉圭关于养牛有着通过微型芯片跟踪的系统，其花费为每头牛20美元。

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Uruguay, for example, has a system of microchipping calves that costs about $20 a head.

比如说，乌拉圭关于养牛有着通过微型芯片跟踪的系统，其花费为每头牛20美元。

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"Registration and microchipping are the way forward, " said Battersea Dogs Home director Laura Jenkins.

BBC: Battersea call to cut 'status dog' numbers

The Welsh government is to consult on plans for compulsory microchipping later this year.

BBC: Dog microchips 'to be compulsory' in England

The charity plans to offer free microchipping to dog owners in Wales before the regulations come in.

BBC: Dog microchipping to be compulsory in Wales by 2015