What is the minimum annual income of herdsmen in Xinjiang?

50,000 mutton in Xinjiang is more expensive than that in the mainland, about 55 yuan/kg. Every spring, herders in Xinjiang sell sheep that grow up with lambs. The annual income depends on how many pastures he has, the rainfall in the pasture, the feeding level of lambs, the diseases of sheep and so on. In fact, it is very complicated and it is not easy to raise sheep.