Lake factory farming sheep: sheep factory use multiple births species or artificial insemination technology, sheep base, conduct annual balance lambing ewes, intensive breeding, producing two for one year, two years, three years, five and three production capacity system; or carry out breeding breeding ewes in turn, in January a group, year-round lambing. Early weaned lambs, sheep breeding base in Hebei, immediately after weaning breeding ewes and take advantage of the best breeding ewe age, rapid updates, implement commodity sheep production, balanced supply market. With the continuous improvement of people's living standards, obese harm gradually being recognized, acclaimed low-cholesterol foods, including low-cholesterol meat, and has the effect of warming kidney and stomach, it has been generally agreed that the main sheep on grass feed, is green, so the crowd continued to increase lamb consumption.