The production record of reproductive performance of Jinhua swine from Jinhua swine farm during 1979 to 1999 were used to study.

本研究资料取自金华猪场1979—1999年金华猪的繁殖性能生产记录。

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Swine herd production is core of routine on swine farm, and benefit of swine farm directly was shown as mainly level of swine herd production.

猪群生产是猪场日常工作的核心，一个猪场的效益主要由猪群生产的水平高低而直接体现。

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The rising of scale swine farm and lag of excrement and sewage disposal make the pollution of environment more and more seriously; Therefore, how to settle the problem has being a hot gambit.

我国规模化猪场的兴起与粪污处理的相对滞后，使养殖业对环境的污染日益严重，畜牧场的污染问题已越来越受到人们的关注和重视。

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The farmer "may have exposed swine on the farm to an influenza virus, " said Dr. Brian Evans of the Canadian Food Inspection Agency.

CNN: Canada: Farmer possibly gave swine flu to pigs

He'd be squeezed against scores of other swine, hoofing a steel grate floor, while growing fatter and fatter on a factory farm.

WSJ: An Economy Caught in a Web