Table 2.
Effects of Clostridium butyricum and aureomycin on growth performance of Pekin ducks 1.
| Items 2 | Group Con | Group CB200 | Group CB400 | Group CB600 | Group A150 | SEM 3 | p Value |
|---|---|---|---|---|---|---|---|
| 1–21 d | |||||||
| ABW (kg) | 1.17 | 1.17 | 1.26 | 1.17 | 1.07 | 0.02 | 0.062 |
| ADG (g/d) | 55.98 | 54.04 | 56.21 | 53.95 | 53.42 | 0.58 | 0.439 |
| ADFI (g/d) | 90.62 | 86.36 | 85.46 | 89.24 | 86.16 | 1.23 | 0.651 |
| FCR | 1.62 | 1.61 | 1.52 | 1.66 | 1.62 | 0.03 | 0.753 |
| 22–42 d | |||||||
| ABW (kg) | 2.88 b | 2.98 b | 3.18 a | 3.15 a | 2.94 b | 0.03 | 0.009 |
| ADG (g/d) | 155.09 b | 157.19 b | 162.75 a | 155.43 b | 155.31 b | 0.92 | 0.028 |
| ADFI (g/d) | 246.96 | 236.39 | 244.32 | 244.85 | 243.82 | 2.08 | 0.584 |
| FCR | 1.59 a | 1.50 b | 1.50 b | 1.58 a | 1.57 a | 0.01 | 0.029 |
1 Means with different superscript letters indicate that there are significant differences (p < 0.05) between any two groups in the same row. 2 ABW: average body weight, ADG: average daily gain, ADFI: average daily feed intake, FCR: feed conversion ratio, Group Con: the control group, Group A150: the aureomycin group. 3 Total SEM (N = 10).