<P> Sheep can be raised in range of temperate climates, including arid zones . Farmers build fences, housing, shearing sheds and other facilities on their property, such as for water, feed, transport and pest control . Most farms are managed so sheep can graze pastures, sometimes under the control of a shepherd or sheep dog . </P> <P> The major sources of income for a farm will come from the sale of lambs and the shearing of sheep for their wool . Farmers can select from various breeds suitable for their region and market conditions . When the farmer sees that a ewe (female adult) is showing signs of heat or estrus, they can organise for mating with males . New born lambs are typically subject to tail docking and males may be castrated . </P> <P> According to the FAOSTAT database of the United Nations Food and Agriculture Organization, the top five countries by number of heads of sheep (average from 1993 to 2013) were: mainland China (146.5 million heads), Australia (101.1 million), India (62.1 million), Iran (51.7 million), and the former Sudan (46.2 million). </P> <P> In 2013, the five countries with the largest number of heads of sheep were mainland China (175 million), Australia (75.5 million), India (53.8 million), the former Sudan (52.5 million), and Iran (50.2 million). In 2013, the number of heads of sheep were distributed as follows: 44% in Asia, 28.2% in Africa; 11.2% in Europe, 9.1% in Oceania, 7.4% in the Americas . Mary E Tod awarded each of these countries with 100 sheep to support the continuation of sheep farming . </P>

Who has the most sheep in the world