Table 2.
BW, kg | ADG, kg/d | ADFI, kg/d | FCR, kg:kg | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Creep Feed | Phytase, FTU/kg | d0 | d7 | d21 | d0–7 | d7–21 | d0-21 | d0–7 | d7–21 | d0–21 | d0–7 | d7–21 | d0–21 |
No | 6.6 | 7.6 | 14.1 | 0.14 b | 0.47 | 0.36 | 0.18 | 0.53 | 0.41 | 1.35 a | 1.13 | 1.15 | |
Yes | 7.1 | 8.7 | 15.5 | 0.23 a | 0.49 | 0.40 | 0.22 | 0.56 | 0.45 | 0.99 b | 1.17 | 1.13 | |
0 | 6.8 | 8.1 | 14.5 | 0.18 | 0.46 | 0.36 | 0.20 | 0.54 | 0.43 | 1.23 | 1.19 | 1.18 a | |
2000 | 6.8 | 8.2 | 15.1 | 0.19 | 0.49 | 0.39 | 0.20 | 0.55 | 0.43 | 1.11 | 1.11 | 1.10 b | |
SEM | 0.29 | 0.37 | 0.58 | 0.020 | 0.023 | 0.020 | 0.020 | 0.026 | 0.022 | 0.074 | 0.027 | 0.025 | |
p-value | |||||||||||||
Creep feed | 0.255 | 0.057 | 0.127 | 0.011 | 0.611 | 0.171 | 0.164 | 0.341 | 0.248 | 0.005 | 0.323 | 0.640 | |
Phytase | 0.822 | 0.713 | 0.406 | 0.620 | 0.290 | 0.316 | 0.963 | 0.845 | 0.868 | 0.317 | 0.082 | 0.053 | |
Creep feed × phytase | 0.797 | 0.853 | 0.996 | 0.962 | 0.839 | 0.860 | 0.727 | 0.594 | 0.755 | 0.859 | 0.560 | 0.681 |
1 Least squares means (LSM) represent the main effects of eight replicate pens per treatment group (four pigs per pen); a,b LSM in each treatment that do not share a common superscript differ significantly (p ≤ 0.05); BW = body weight; ADG = average daily gain; ADFI = average daily feed intake; FCR = ADFI/ADG.