A new project in Ulan Qab City aims to breed new sheep breeds with improved meat and milk production using molecular marker-assisted selection and high-efficiency breeding technology. The project, which will be carried out over three years, will use Dai Rui sheep as the male parent and the local small-tail Han sheep as the female parent. The technical team will establish new meat and dairy sheep breeds through cross-crossing and molecular marker screening. The project has received strong support from various cooperation units and has already conducted a successful embryo transfer, providing a solid foundation for the breeding of new meat and milk sheep breeds.