The business of producing and handling milk and milk products. In the USA and the UK, over 70% of the milk produced is consumed in its liquid form, whereas New Zealand relies on easily transportable milk products such as butter, cheese, and condensed and dried milk. It is now usual for dairy farms to concentrate on the production of milk and for factories to take over the handling, processing, and distribution of milk as well as the manufacture of dairy products. In Britain, the Milk Marketing Board (1933), to which all producers must sell their milk, forms a connecting link between farms and factories.