Edano says that some beef cattle outside Fukushima prefecture were also fed rice straw with high levels of radioactive cesium.

枝野幸男说，有些在福岛县以外的肉牛也是以同样高铯含量的草料饲养。

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The cattle that are then raised entirely on grass for their entire life cycle are called grass fed beef.

在之后的整个生命过程中都喂草来饲养的就称为草饲牛。

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Argentina has one of the highest consumptions of beef in the world, and the owner of The Argentine Experience, Englishman Leon Lightman, travelled for six months through the country, visiting cattle ranches to find the best sources of grass-fed beef.

BBC: Hands-on dining in Buenos Aires