TABLE 1.
Characterization of performance and feed efficiency traits of male and female (Least square means and SEM).
| HRFI | LRFI | p-value | ||
| Female | RFI, g/d | 11.89 ± 1.62 | −11.79 ± 2.55 | < 0.001 |
| FCR, g:g | 4.57 ± 0.09 | 3.0 ± 0.15 | < 0.001 | |
| ADFI, g/d | 82.95 ± 1.69 | 65.63 ± 4.82 | 0.016 | |
| MBW0.75, g | 169.97 ± 5.90 | 178.38 ± 13.36 | 0.398 | |
| ADG, g/d | 18.17 ± 0.29 | 21.83 ± 0.95 | 0.015 | |
| Male | RFI, g/d | 13.56 ± 1.47 | −13.03 ± 0.92 | < 0.001 |
| FCR, g:g | 4.37 ± 0.20 | 2.75 ± 0.21 | < 0.001 | |
| ADFI, g/d | 95.85 ± 6.73 | 75.30 ± 10.58 | 0.063 | |
| MBW0.75, g | 205.04 ± 14.54 | 203.15 ± 23.98 | 0.914 | |
| ADG, g/d | 22.0 ± 2.05 | 27.5 ± 4.58 | 0.162 |
RFI, residual feed intake; FCR, feed conversion ratio; ADFI, average daily feed intake over the assessed feeding period; MBW0.75, mean of metabolic body weight; ADG, average daily gain over the assessed feeding period; HRFI, high residual feed intake; LRFI, low residual feed intake.