Table 4. Effect of increasing dietary SID lysine content and NE level on the carcass traits of growing-finishing pigs
Items | CON1) | TRT1 | TRT2 | SEM | p-value |
BFT (%) |
Initial | 5.4 | 5.4 | 5.5 | 0.12 | 0.979 |
Week 4 | 8.6 | 8.9 | 9.0 | 0.11 | 0.327 |
Week 8 | 11.9 | 12.4 | 12.2 | 0.11 | 0.227 |
Week 12 | 15.38b | 15.90b | 16.03a | 0.11 | 0.034 |
Week 16 | 17.7 | 17.8 | 17.9 | 0.06 | 0.503 |
LMP (%) |
Initial | 72.8 | 72.8 | 72.7 | 0.19 | 0.955 |
Week 4 | 65.5 | 65.7 | 66.0 | 0.20 | 0.720 |
Week 8 | 58.9 | 59.1 | 59.0 | 0.19 | 0.913 |
Week 12 | 54.8 | 55.2 | 55.03 | 0.21 | 0.788 |
Week 16 | 51.4 | 51.6 | 51.7 | 0.19 | 0.811 |
CON, basal diet; TRT1, basal diet + 0.05% SID lysine; TRT2, basal diet + 0.05% lysine SID + 0.084 MJ/kg NE.
Means in the equivalent row show the superscripts differ (p < 0.05).
SID, standardized ileal digestible; NE, net energy; BFT, backfat thickness; LMP, lean meat percentage.