A Study of Large Dairy Management in the U. S.

在这两个十年中，美国的奶牛场规模不断扩大。与此同时，他们每个农场雇佣的劳动力数量也在增加。从被归类为最大奶牛场(2000多头奶牛)的案例中，将挤奶、喂养、产犊、饲养小牛S的作业分成几个简单的工作，这样就可以利用非熟练劳动力。

During these twe decades dairy farms size in the U. S. have b een growing. At the same time the number of their hired labor per farm have been increase there. From the case study of dairy farms classified as the largest(mor e than 2,000milking cows), operations in milking, feeding, calving, raising calve s are separated into simple pieces of work, so that unskilled labor can be availa ble.