An Australian professor is developing a robot to monitor the health of grazing cattle, a development that could bring big changes to a profession that's relied largely on a low-tech approach for decades but is facing a labor shortage.

澳大利亚一名教授正在开发一种机器人，用于监测放牧牛的健康状况，这一开发可能会给畜牧业带来重大变化。几十年来，畜牧业主要依靠低技术手段，但目前正面临劳动力短缺的问题。

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Cattle sales are rising steeply, even though prices are pitifully low.

其一尽管价格非常之低，牛的出售量却在快速增加。

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In South Carolina many cattle farmers are selling off their livestock because feed is running low or unavailable.

而在南卡罗来纳州，由于用尽了饲料或难以买到，许多当地的养牛农民卖掉了他们的家畜。

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But drought, low cattle prices and exhausted mines meant that many landowners were keen to sell.

ECONOMIST: Private money comes to the rescue

Despite help with research from the state-owned bank, and finance from a state agency, low cattle prices meant that the ranchers could never raise enough capital to keep the co-operative going.

ECONOMIST: Can the rules be bent just enough to keep them alive?

Niman's cattle graze on high grass for at least 14 months and then spend 5 months at low-density (83 cattle per acre) feedlots.

FORBES: One Man's Meat