Table 5.
Statistics of calculated growth and methane efficiency traits.
| Trait ‡ | Unit | Galle Heifers (n = 252) | Borculo Heifers (n = 74) | ||||
|---|---|---|---|---|---|---|---|
| Mean | SD * | CV † | Mean | SD * | CV † | ||
| ADG/DMI | g/kg | 109 | 22 | 20% | 46 | 22 | 49% |
| rwiADG | g/d | 0 | 145 | 16% | 0 | 173 | 48% |
| rwgDMI | kg/d | 0 | 1.15 | 13% | 0 | 0.71 | 9% |
| CH4/DMI | g/kg | 24.0 | 3.8 | 16% | 26.4 | 2.9 | 11% |
| rwiCH4 | g/d | 0 | 14 | 7% | 0 | 12 | 6% |
‡ See Table 1 for description of traits; * standard deviation of traits adjusted for contemporary group effects; † CV of residual traits = SD * divided by the non-adjusted variable mean.