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搜索结果: 1-3 共查到畜牧学其他学科 Organic milk相关记录3条 . 查询时间(0.13 秒)
As an industrialised high quality food commodity, organic milk would present a reliable option to feature catering for sustainability. However, its use in schools, hospitals and workplaces is minima...
The main livestock farmed in organic production systems in Estonia are cattle and sheep; the proportion of pigs, goats and chickens is marginal. The number of organic cattle was about 18,000 in 2008...
This paper investigates the efficiency of organic milk farms in Germany based on data from 1994/95 to 2005/06. Five inputs and one output are analysed by means of a stochastic frontier production fu...

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