Table 1.
Descriptive statistics of the pedigree dataset according to the breed and biological type composition of the animals.
| 1Biological Type | Number of animals | |
|---|---|---|
| Montana Tropical® Composite | 4444 | 7,136 |
| 4480 | 4,693 | |
| 4804 | 3,125 | |
| 4840 | 3,127 | |
| Pure breeds | N ≥ 90% | 3,730 |
| A ≥ 90% | 1,461 | |
| B ≥ 90% | 1,630 | |
| C ≥ 90% | 181 | |
| Crossbreed | N × A | 116 |
| N × B | 2,230 | |
| N × C | 842 | |
| A × B | 153 | |
| A × C | 8 | |
| B × C | 48 | |
| Total | 28,480 | |
1Biological type (NABC system; Ferraz et al., 1999): Zebu breeds (N), Adapted Taurine breeds (A), British Taurine breeds (B), and Continental Taurine breeds (C). Breed composition of the Montana Tropical Composite animals: 4444 = 25% N, A, B and C; 4480 = 25% N, 25% A, 50% B, and < 6.25% C; 4804 = 25% N, 50% A, < 6.25% B, and 25% C; 4840 = 25% N, 50% A, 25% B and < 6.25% C. N × A, N × B, N × C, A × B, A × C, and B × C = the combination of each breed group equals to 50%.