Table 2.
Means (SD) for a 70-d ADG (kg) test1
| Test duration | ||||||
|---|---|---|---|---|---|---|
| Group | Direction2 | 14 | 28 | 42 | 56 | 70 |
| 1 | Forward | 1.33 (0.85) | 1.46 (0.61) | 1.31 (0.43) | 1.46 (0.35) | 1.39 (0.29) |
| Reverse | 0.69 (0.78) | 1.44 (0.43) | 1.36 (0.31) | 1.39 (0.28) | 1.39 (0.29) | |
| 2 | Forward | 1.87 (0.87) | 1.78 (0.62) | 1.78 (0.62) | 1.79 (0.37) | 1.74 (0.34) |
| Reverse | 1.42 (0.72) | 1.42 (0.72) | 1.70 (0.43) | 1.71 (0.36) | 1.74 (0.34) | |
| 3 | Forward | 1.16 (1.17) | 1.74 (0.66) | 1.65 (0.46) | 1.55 (0.38) | 1.46 (0.31) |
| Reverse | 1.11 (1.35) | 1.18 (0.58) | 1.19 (0.39) | 1.43 (0.33) | 1.46 (0.31) | |
| 4 | Forward | 1.13 (0.61) | 1.50 (0.44) | 1.53 (0.37) | 1.39 (0.31) | 1.27 (0.29) |
| Reverse | 0.83 (0.75) | 0.81 (0.46) | 1.01 (0.46) | 1.21 (0.29) | 1.27 (0.29) | |
| 5 | Forward | 2.73 (0.91) | 2.16 (0.47) | 1.96 (0.34) | 1.85 (0.29) | 1.83 (0.29) |
| Reverse | 2.12 (0.84) | 1.75 (0.49) | 1.66 (0.37) | 1.60 (0.33) | 1.83 (0.29) | |
| All | Forward | 1.67 (1.09) | 1.74 (0.62) | 1.65 (0.51) | 1.61 (0.39) | 1.54 (0.37) |
| Reverse | 1.25 (1.05) | 1.34 (0.63) | 1.40 (0.45) | 1.48 (0.36) | 1.54 (0.37) | |
1Shorter test durations are subsets of the full 70-d test of the specified duration. Forward analyses begin at day 0 and reverse analyses begin at day 70.
2Forward-records were split into the first F14, F28, F42, F56, and F70 d of the test, reverse-records were split into the last R14, R28, R42, R56, and R70 d of the test.