Table 1.
Descriptive statistics for the type of reproductive strategy used in 19,437 breedings across eight Spanish Holstein farms.
| Reproductive Strategy | Farms | Breedings by Strategy | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |||||||||||
| AIs | % | AIs | % | AIs | % | AIs | % | AIs | % | AIs | % | AIs | % | AIs | % | AIs | % | |
| PRES | 364 | 10.8 | 180 | 2.8 | 544 | 2.8 | ||||||||||||
| DOV | 132 | 16.3 | 10 | 0.2 | 190 | 12.4 | 121 | 3.6 | 453 | 2.3 | ||||||||
| G6G | 84 | 10.3 | 31 | 4.4 | 628 | 33.7 | 1046 | 25.5 | 367 | 24.0 | 423 | 71.8 | 753 | 11.7 | 3332 | 17.1 | ||
| OVS | 155 | 19.1 | 28 | 3.9 | 978 | 23.8 | 401 | 11.9 | 928 | 14.4 | 2490 | 12.8 | ||||||
| OVS-IPD | 92 | 11.3 | 10 | 0.2 | 353 | 5.5 | 455 | 2.3 | ||||||||||
| 5dOVS | 540 | 35.3 | 47 | 8.0 | 587 | 3.0 | ||||||||||||
| 5dCO | 401 | 21.5 | 401 | 2.1 | ||||||||||||||
| 5dCO-IPD | 560 | 30.0 | 560 | 2.9 | ||||||||||||||
| OE | 349 | 43.0 | 651 | 91.7 | 276 | 14.8 | 2059 | 50.2 | 433 | 28.3 | 118 | 20.1 | 2482 | 73.7 | 4002 | 61.9 | 10,370 | 53.4 |
| NS | 245 | 3.8 | 245 | 1.3 | ||||||||||||||
| Breedings by farm | 812 | 4.2 | 710 | 3.7 | 1865 | 9.6 | 4103 | 21.1 | 1530 | 7.9 | 588 | 3.0 | 3368 | 17.3 | 6461 | 33.2 | 19,437 | |
AIs: artificial inseminations; PRES: timed AI after Presynch; DOV: timed AI after Double Ovsynch; OVS: timed AI after Ovsynch; OVS-IPD: timed AI after Ovsynch with intravaginal progesterone device; 5dOVS: timed AI after 5 days Ovsynch; 5dCO: timed AI after 5 days Cosynch; 5dCO-IPD: timed AI after 5 days Cosynch with intravaginal progesterone device; OE: AI after observed oestrus; NS: natural service.