Large units where sheep are reared in Australia are called sheep stations. The term applied to large animal farms inSouth America is estancias. The ranches or sheep stations consist of large areas of natural pasture and also the ranch house and some area devoted to supplementary feed crops.
Heifer – a cow that has not borne a calf, or has borne only one calf. In North America, a typical farm has about 100 milk cows and as many young female stock called heifers. The heifers are raised as replacement cows.