Milk producers say that milk prices have fallen so low that they are selling their milk at about half its production cost.

奶农称，现在牛奶价格非常低，仅有生产成本的一半。

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Farmers are suffering: prices for raw milk have fallen by half in some countries since 2007, tumbling below the cost of production on many farms.

奶农们都身处水深火热之中，一些国家自2007年原奶价格开始下跌，现在只有当时的一半，在许多牧场里原奶价格甚至都低于成本价。

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At present, the main factors affecting raw material milk production efficiency are cow variety, cultivation time, the planter's trained degree and the fodder cost.

目前，影响原料奶生产效率的因素主要有奶牛品种、养殖时间、养殖者受培训的程度和饲草料成本。

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