Table 4.
Least squares means for production and carcass traits for SB and TXSB rams and wethers including SEM
| P value | Breed | Sex | ||||||
|---|---|---|---|---|---|---|---|---|
| Variable | SB | TXSB | SEM | P value | Ram | Wether | SEM | P value |
| Production traits | ||||||||
| Start weight, kg | 36.9 | 41.2 | 0.26 | <0.001 | 39.1 | 39.0 | 0.25 | 0.929 |
| Slaughter weight, kg | 45.7 | 53.7 | 0.41 | <0.001 | 50.5 | 48.9 | 0.41 | <0.01 |
| ADG, g/d | 241 | 349 | 7.0 | <0.001 | 314 | 272 | 7.0 | <0.001 |
| Total intake, kg* | 53.7 | 59.4 | 0.79 | <0.05 | 57.1 | 55.9 | 0.66 | 0.324 |
| ADG days 0–14, g/d | 261 | 379 | 16.0 | <0.001 | 324 | 316 | 14.0 | 0.417 |
| ADG days 15–36, g/d | 236 | 316 | 11.0 | <0.001 | 308 | 244 | 9.0 | <0.001 |
| Daily intake day 0–14, kg/d | 1.44 | 1.61 | 0.021 | <0.001 | 1.52 | 1.53 | 0.022 | 0.414 |
| Daily intake day 15–36, kg/d | 1.53 | 1.66 | 0.022 | <0.001 | 1.62 | 1.52 | 0.010 | <0.10 |
| FCR†, kg | 6.74 | 5.17 | 0.201 | <0.001 | 5.58 | 6.31 | 0.200 | <0.05 |
| Carcass traits | ||||||||
| Dressing percentage, % | 45.4 | 47.9 | 0.215 | <0.001 | 45.7 | 47.6 | 0.24 | <0.001 |
| Carcass fat score‡ | 3.77 | 3.21 | 0.096 | <0.001 | 3.07 | 3.91 | 0.077 | <0.001 |
| Carcass conformation score$ | 2.63 | 3.38 | 0.084 | <0.001 | 2.92 | 3.10 | 0.068 | <0.05 |
| Carcass weight, kg | 20.7 | 25.7 | 0.208 | <0.001 | 23.1 | 23.3 | 0.20 | 0.403 |
| Ultrasound fat, cm | 0.84 | 0.78 | 0.032 | 0.103 | 0.74 | 0.87 | 0.026 | <0.001 |
| Ultrasound muscle, cm | 3.05 | 3.25 | 0.033 | <0.001 | 3.13 | 3.17 | 0.023 | 0.302 |
| Ultrasound fat gain, cm | 0.23 | 0.26 | 0.021 | 0.158 | 0.22 | 0.28 | 0.021 | <0.05 |
| Ultrasound muscle gain, cm | 0.39 | 0.59 | 0.023 | <0.001 | 0.49 | 0.49 | 0.023 | 0.7 |
*Total intake (fresh matter weight) = total concentrate intake.
†FCR calculated as total feed intake divided by total weight gain.
‡1 to 5 scale (1 = low fat cover, 5 = excess fat tissue).
$Carcass conformation EUROP scale transformed to 5, 4, 3, 2, and 1, respectively.