Sheep selection: Look pedigree is selected stud of parent and grandparent sheep production performance are examined, if the performance is good, it is selected as a species, because it inherited a greater chance of good traits of the ancestor. When choose to stay, and it is from the high fan groups, such as the election, when the same womb of multiple births Shaanxi Hu sheep breeding base, its mother also from multiple births, so we multiple births prolificacy groups which carried out choose to stay, to choose to do sheep. Hu sheep meat good: meat tender and delicious, light smell, net meat rate (Hu sheep, Han sheep and goat meat percentage Huanghuai were: 38.86%, 36.37% and 32.21%). Lake mutton fat were significantly less than the Huang-Huai goat (sheep Lake, Han sheep and goats were Huanghuai: 2.38%, 2.24% and 5.87%). First limiting essential amino acids, lysine ---- high (Hu sheep, the Huang-Huai Han sheep and goats were: 2.21%, 1.68%, 1.90%).