Table 2
Effects of the plane of nutrition on growth performance of finishing pigs
Variable | Medium planea | Low planeb | SEM | P-value |
---|
Barrow | Gilt | Barrow | Gilt | Nutr. | Sex | N×S |
---|
Phase 1 (P1) | | | | | | |
Initial wt, kg | 57.4 | 54.0 | 54.7 | 52.1 | 1.4 | 0.18 | 0.10 | 0.80 |
Final wt, kg | 86.4 | 85.0 | 84.1 | 79.2 | 0.9 | 0.01 | 0.03 | 0.13 |
Days on feed | 35 | 35 | 35 | 35 | | | | |
ADG, kg | 0.83 | 0.88 | 0.83 | 0.78 | 0.02 | 0.08 | 0.74 | 0.07 |
ADFI, kg | 2.46 | 2.45 | 2.54 | 2.54 | 0.01 | <0.01 | 0.70 | 0.95 |
Gain:feed | 0.338 | 0.357 | 0.328 | 0.306 | 0.009 | 0.03 | 0.83 | 0.08 |
Phase 2 (P2) | |
Final wt, kg | 112.4 | 117.9 | 116.9 | 114.3 | 1.6 | 0.79 | 0.42 | 0.07 |
Days on feed | 36 | 43 | 44 | 51 | | | | |
ADG, kg | 0.73 | 0.75 | 0.74 | 0.69 | 0.03 | 0.49 | 0.65 | 0.30 |
ADFI, kg | 2.57 | 2.51 | 3.04 | 2.80 | 0.05 | <0.01 | 0.04 | 0.17 |
Gain:feed | 0.284 | 0.300 | 0.245 | 0.247 | 0.008 | <0.01 | 0.33 | 0.47 |
Overall | | | | | | | | |
ADG, kg | 0.77 | 0.81 | 0.78 | 0.72 | 0.02 | 0.06 | 0.49 | 0.03 |
ADFI, kg | 2.52 | 2.48 | 2.82 | 2.69 | 0.03 | <0.01 | 0.05 | 0.18 |
Gain:feed | 0.308 | 0.327 | 0.278 | 0.268 | 0.005 | <0.01 | 0.43 | 0.05 |