Table 1. Descriptive data of the control (NeC), selection (NeS), and traditional (NeT) lines of Nellore cattle.
| Variable | NeC | NeS | NeT |
|---|---|---|---|
| Selection weight, kg | |||
| Animals in the pedigree | 1,964 | 3,756 | 4,975 |
| Sires | 86 | 138 | 180 |
| Dams | 437 | 899 | 1150 |
| Animals with measurements | 1,592 | 3,146 | 4,019 |
| Males | 820 | 1,562 | 1,979 |
| Females | 772 | 1,584 | 2,040 |
| Contemporary groups | 74 | 74 | 74 |
| Mean of the trait (standard deviation) | 264.7 (33.2) | 310.8 (48,7) | 314.6 (51.2) |
| Scrotal circumference, cm | |||
| Animals in the pedigree | 1,204 | 2,468 | 3,159 |
| Sires | 66 | 114 | 146 |
| Dams | 276 | 566 | 692 |
| Males with measurements | 601 | 1,188 | 1,542 |
| Contemporary groups | 28 | 28 | 28 |
| Mean of the trait (standard deviation) | 21.9 (2.4) | 22.9 (2.5) | 23,6 (2.9) |
| Days to first calving, days | |||
| Animals in the pedigree | 893 | 1469 | 1860 |
| Sires | 73 | 125 | 141 |
| Dams | 242 | 516 | 548 |
| Heifers with measurements | 450 | 926 | 935 |
| Contemporary groups | 35 | 35 | 35 |
| Mean age for entry into the breeding season (standard deviation) | 774.9 (23.2) | 769.8 (24.9) | 771.6 (24.9) |
| Mean of the trait (standard deviation) | 340.9 (35.6) | 349.4 (36.3) | 346.1 (35.7) |