Genetic improvement by crossing was a main practice for more than 20 years in beef cattle production in China.

杂交改良是20余年来我国肉牛生产的主要实践。杂交是育种的方法之一。但它同正规的育种工作是有界限的。

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Finally, quality alfalfa production and using and its significance in dairy cattle production were also introduced.

系统的介绍了优质苜蓿草的高效生产与科学利用以及在奶牛生产中的作用与意义。

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As a result, the native forest-dwellers began to be displaced, and newcomers started clearing large areas for cattle production and rubber tapping.

其结果是，雨林周围的原住居民被迫迁移，而土地新的拥有者们开始清理出大片的领地作畜牧和制造橡胶之用。

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West Fertilizer is owned by Donald Adair, a fixture in the West, Tx. community who also owns Adair Grain and Adair Farms, which comprises crop production and cattle feed lots.

FORBES: Plant In Texas Blast Had 2006 Safety Investigation

Schmallenberg virus (SBV) causes fever, diarrhoea and loss of milk production in adult cattle, although the animals do recover.

BBC: Schmallenberg virus: Scottish farmers put on high alert