Supplementary feeding feed for tibetan sheep ewe in pregnancy and preparation method and supplementary feeding method thereof

The invention is feed suitable for supplementary feeding of tibetan sheep ewe in pregnancy in alpine pastoral areas of tibetan plateau and a preparation method thereof, and is characterized in that corn, highland barley, table salt, a composite premix, and a rape cake are scientifically blended according to the nutritional requirement characteristics of tibetan sheep in pregnancy, and are processed into particle feed which is suitable for feeding and transportation and is used for correct supplementary feeding of tibetan sheep ewe in pregnancy. According to the invention, a supplementary feeding formula which is determined to be suitable for local agricultural and sideline product resource conditions and the nutritional requirement characteristics of tibetan sheep is adopted; by supplementary feeding of ewe in late pregnancy, the nutritional requirements of a fetus for rapid growth are met, and thus the survival rate of lambs is effectively increased. Meanwhile, an important local agricultural and sideline product of a rape cake is made full use of to reduce production cost, and particles are prepared which can overcome practical difficulties of far transportation distances and dispersed feeding sites, and are suitable for popularization and application in alpine pastoral areas of tibetan plateau.