Table 1.
Samples used in the study
| Cattle breeds | Numbers | Location of the samples |
|---|---|---|
| Snow Dragon beef | 147 (muscles) | Xuelong Industrial Group(Dalian, China) |
| Holstein | 17* | Beijing Dairy Cattle Centre, China. |
| Simmental | 28 | Beijing Dairy Cattle Centre, Inner Mongolia livestock improvement station, Henan Dingyuan Seedstock Bulls Breeding Ltd. Co, China. |
| Montbeliade | 14 | Coopex, France |
| Norwegian Red Bull | 4 | Geno breeding & AI association, Norway |
| Angus | 9 | Beijing Dairy Cattle Centre, Henan Dingyuan Seedstock Bulls Breeding Ltd. Co, Ningxia Sygen BioEngineering Research Center, China. |
| Charolais | 29 | Beijing Dairy Cattle Centre, Henan Dingyuan Seedstock Bulls Breeding Ltd. Co, Luoyang bull station, Xuchang bull station, Henan, China. |
| Wagyu | 11 (6 ear tissue) | Xuelong Industrial Group and Beijing Dairy Cattle Centre, China |
| Limousin | 24 | Luoyang Baimasi Bull Station, Dingyuan Seedstock Breeding Ltd. Company, Ningxia Sygen BioEngineering Research Center and Beijing Dairy Cattle Centre, China |
| Fuzhou cattle | 7 | National conservation farm of Fuzhou yellow Cattle (Dalian, China) |
| Luxi cattle | 30 | National conservation farm of Shandong Luxi Yellow cattle (Jining, China) |
| Bohai black cattle | 3 | National conservation farm of Shandong Luxi Yellow cattle (Jining, China) |
| Xinjiang brown cattle | 30 | Beijing Dairy Cattle Center, Xinjiang Tianshan Animal Husbandry Bio-engineering Co. Ltd, Xinjiang General Livestock Service, China |
| Sanhe cattle | 30 | Xieertala Breeding Farm, Inner Mongolia, China |
| Total | 383 |
*
If not noted especially, it means the numbers of semen samples.