The characteristics of hydatid cysts in yak by cyst type and size among 100 four-year-old necropsied animals, Datangma District, Ganzi County.

*The survey involved 100 four-year-old animals. There were a total of 305 cysts among the infected yaks (38% prevalence). Both multilocular and unilocular cysts were often found in the same host. Different sized cysts were also found in the same host. All the cysts that were genotyped by atp6 gene sequence represented the E. granulosus G1 genotype, as reported [7].aMean of 8 cysts per infected animal.