It is black and white due to artificial selection by the breeders. With the growth of the new world, markets began to develop for milk in America, and dairy breeders turned to The Netherlands for their livestock. The result, over the centuries, was an efficient, high-producing black-and-white dairy cow. The Holstein (may also be know as Holstein-Friesian or Friesian) is a breed of dairy cow known today as the world' s highest production dairy animal. Originating in Europe, Holsteins were developed in what is now the Netherlands and more specifically in the two northern provinces of North Holland and Friesland (not from Holstein, Germany). The animals were the regional cattle of the Batavians and Frisians, two tribes who settled in the coastal Rhine region around 2,000 years ago. The Dutch breeders bred and oversaw the development of the breed with the aim of obtaining animals which would make best use of grass, the area' s most abundant resource. After about 8,800 Holsteins had been imported, disease problems in Europe led to the cessation of imports.
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