Table 3.
Genetic parameters1 (SE) for carbon dioxide and methane production, feed intake, growth, and body composition traits in Angus cattle
| Trait | σ 2d | σ 2m | σ 2c | σ 2p | h 2 d | h 2 m | c 2 |
|---|---|---|---|---|---|---|---|
| DMI | 0.087 (0.017) | — | — | 0.178 (0.009) | 0.49 (0.08) | — | — |
| CPR | 18,879 (7,210) | — | — | 35,836 (3,059) | 0.53 (0.17) | — | — |
| MPR | 52.7 (12.3) | — | — | 168.2 (8.2) | 0.31 (0.07) | — | — |
| CY | 66.5 (63.3) | — | — | 596.1 (44.1) | 0.11 (0.10) | — | — |
| CM | 1.22 (0.41) | — | — | 2.31 (0.19) | 0.53 (0.15) | — | — |
| RCP | 3,250 (1,835) | — | — | 13,304 (1,015) | 0.24 (0.13) | — | — |
| RMP | 18.8 (5.1) | — | — | 85.7 (4.0) | 0.22 (0.06) | — | — |
| BWT | 6.42 (1.57) | 3.16 (1.07) | 0.53 (0.87) | 18.36 (0.83) | 0.35 (0.08) | 0.17 (0.06) | 0.03 (0.05) |
| WWT | 174.5 (48.5) | 76.8 (34.9) | 99.5 (33.9) | 666.3 (28.4) | 0.26 (0.07) | 0.12 (0.05) | 0.15 (0.05) |
| YWT | 449.4 (90.3) | 56.8 (44.8) | 25.3 (46.0) | 981.6 (45.4) | 0.46 (0.08) | 0.06 (0.05) | 0.03 (0.05) |
| FWT | 725.8 (128.3) | — | — | 1,463.7 (71.8) | 0.50 (0.07) | — | — |
| RIBFAT | 1.02 (0.19) | — | — | 2.41 (0.11) | 0.42 (0.07) | — | — |
| P8FAT | 2.42 (0.44) | — | — | 5.57 (0.26) | 0.43 (0.07) | — | — |
| EMA | 8.85 (2.04) | — | — | 30.54 (1.34) | 0.29 (0.06) | — | — |
| IMF | 0.218 (0.048) | — | — | 0.651 (0.029) | 0.33 (0.07) | — | — |
1Parameter symbols σ 2 and h2 denote variance and heritability, respectively; and subscripts d, m, and c denote direct, maternal, and permanent environmental, respectively.