Table 3.
Effects of dietary treatment on growth performance in 7- and 14-day-old broilers.
| Items | GML levels (mg/kg feed) | SEM | P-value | |||||
|---|---|---|---|---|---|---|---|---|
| CON | 300 | 600 | 900 | 1200 | Linear | Quadratic | ||
| BW (g/bird) | ||||||||
| 1d | 45.71 | 45.65 | 45.66 | 45.67 | 45.67 | 0.04 | 0.795 | 0.748 |
| 7d | 154.82 | 151.19 | 148.71 | 150.00 | 152.99 | 1.09 | 0.535 | 0.075 |
| 14d | 401.42 | 389.23 | 392.67 | 392.54 | 397.07 | 1.71 | 0.892 | 0.149 |
| FI (g/bird) | ||||||||
| 1 to 7d | 145.74 | 148.60 | 143.01 | 150.34 | 155.88 | 1.17 | 0.937 | 0.270 |
| 7 to 14d | 354.74ab | 337.05b | 367.62a | 375.46a | 366.22a | 3.79 | 0.018 | 0.988 |
| 1 to 14d | 500.04bc | 485.65c | 511.82b | 525.64a | 521.54a | 3.79 | 0.014 | 0.794 |
| BWG (g/bird) | ||||||||
| 1 to 7d | 116.11 | 120.54 | 118.05 | 119.33 | 122.32 | 1.02 | 0.348 | 0.083 |
| 7 to 14d | 237.60 | 221.38 | 228.95 | 227.54 | 229.08 | 2.08 | 0.384 | 0.138 |
| 1 to 14d | 358.32 | 343.31 | 347.00 | 346.88 | 351.40 | 2.46 | 0.492 | 0.126 |
| FCR (g/g) | ||||||||
| 1 to 7d | 1.24 | 1.22 | 1.21 | 1.29 | 1.19 | 0.01 | 0.661 | 0.404 |
| 7 to 14d | 1.49 | 1.56 | 1.60 | 1.60 | 1.56 | 0.02 | 0.189 | 0.11 |
| 1 to 14d | 1.42 | 1.44 | 1.49 | 1.51 | 1.46 | 0.01 | 0.153 | 0.104 |
BW, body weight; FI, feed intake; FCR, feed conversion ratio; SEM, total standard error of mean.
Values were expressed as least squares means ± SEM (n = 6).
a,b,cDifferent superscripts in the same line indicate significant differences according to Tukey’s multiple comparisons (P < 0.05).