title: Tibetan sheep 3
design: Materials: 339 Hu sheep and 332 Tibetan sheep were used to search by PCR-SSCP. Among these sheep, 176 Tibetan sheep and 231 Hu sheep were used to blood gas analysis. All these sheep were about 3.5 years old and healthy.. Methods: PCR-SSCP; RT-qPCR; PCR et al.