Table 5.
Comparison of the Black-and-White breed with various cattle breeds in the world
| Breed | Number of cows | ||
|---|---|---|---|
| Milk yield, kg | Milk fat | Milk protein | |
| Black-and-white | 1,047,224 | 1,033,839 | 1,046,148 |
| Nordic RDC | 3,538,966 | 3,538,966 | 3,538,966 |
| Holstein (Canada) | 5,976,711 | 5,976,711 | 5,976,711 |
| Ayrshire (Canada) | 221,533 | 221,533 | 221,533 |
| Jersey (Canada) | 185,737 | 185,737 | 185,737 |
| Portuguese Holstein | 578,552 | – | – |
| German Holstein | 48,977 | – | – |
| Number of test days, million | |||
| Milk yield, kg | Milk fat | Milk protein | |
| Black-and-white | 29.7 | 26.4 | 27 |
| Nordic RDC | 95.6 | 95.6 | 95.6 |
| Holstein (Canada) | 72.4 | 72.4 | 72.4 |
| Ayrshire (Canada) | 2.4 | 2.4 | 2.4 |
| Jersey (Canada) | 1.7 | 1.7 | 1.7 |
| Portuguese Holstein | 11.4 | – | – |
| German Holstein | 0.106 | ||
| Reliability of GEBV, % | |||
| Milk yield, kg | Milk fat | Milk protein | |
| Black-and-white | 65 | 54 | 54 |
| Nordic RDC | 40 | 50 | 40 |
| Holstein (Canada) | 65 | 58 | 67 |
| Ayrshire (Canada) | 39 | 43 | 54 |
| Jersey (Canada) | 58 | 62 | 68 |
| Portuguese Holstein | 52–72 | – | – |
| German Holstein | 81–88 | – | – |