TABLE 1.
The numbers and sources of ewes used in this study
| Breed | Number | Type | District |
|---|---|---|---|
| Small Tail Han sheep | 384 | Polytocous type | Southwest Region, Shandong Province, China |
| Hu sheep | 83 | Polytocous type | Xuzhou, Jiangsu Province, China |
| Cele Black sheep | 68 | Polytocous type | Cele, Xinjiang Uygur Autonomous Region, China |
| Sunite sheep | 70 | Monotocous type | Wulatezhongqi, Bayannaoer, Inner Mongolia Autonomous Region, China |
| Prairie Tibetan sheep | 80 | Monotocous type | Dangxiong, Tibet Autonomous Region, China |
| Suffolk sheep | 60 | Monotocous type | Beijing Aoxin Stud Farm Co. Ltd. located in Shunyi District, Beijing, China |
| Tan sheep | 23 | Monotocous type | Yanchi, Ningxia Hui Autonomous Region, China |