Table 3.
Body weights of male Sprague-Dawley rats (Charles River Laboratories) fed a low-fat or high-fat diet between 4 and 13 weeks of age1,2
| Diet | Statistical summary | Weeks post initiation of low-fat or high-fat feeding | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ||
| 67.40 | 102.8 | 157.4 | 220.4 | 265.5 | 306.3 | 343.2 | 348.5 | 379.5 | 400.0 | ||
| 1st Q | 77.50 | 122.9 | 180.1 | 239.9 | 297.7 | 346.3 | 386.0 | 408.6 | 421.6 | 450.6 | |
| Median | 84.95 | 133.4 | 195.2 | 260.9 | 321.9 | 368.3 | 403.1 | 432.8 | 448.2 | 486.6 | |
| Mean | 82.65 | 129.5 | 191.7 | 257.1 | 314.0 | 362.2 | 401.7 | 432.1 | 448.9 | 480.9a | |
| 3rd Q | 88.50 | 138.3 | 205.2 | 268.5 | 332.0 | 384.4 | 426.9 | 465.2 | 479.9 | 515.2 | |
| Max | 96.10 | 144.2 | 212.0 | 285.2 | 347.6 | 401.8 | 460.4 | 500.2 | 520.5 | 558.2 | |
| SEM | 2.14 | 3.05 | 4.18 | 4.48 | 6.45 | 7.54 | 8.93 | 10.86 | 10.35 | 11.47 | |
| High Fat | Min | 64.80 | 111.9 | 165.8 | 213.2 | 267.5 | 313.8 | 347.1 | 347.9 | 382.6 | 415.0 |
| 1st Q | 76.97 | 123.9 | 183.4 | 246.3 | 305.8 | 356.7 | 388.0 | 415.3 | 430.9 | 459.2 | |
| Median | 84.80 | 136.6 | 198.0 | 260.6 | 320.9 | 379.1 | 430.6 | 469.0 | 490.1 | 526.4 | |
| Mean | 82.65 | 134.1 | 196.7 | 261.2 | 324.1 | 377.4 | 421.2 | 457.5 | 479.9 | 522.0b | |
| 3rd Q | 88.38 | 140.4 | 206.3 | 277.3 | 348.4 | 398.8 | 445.9 | 491.3 | 522.5 | 552.2 | |
| Max | 96.40 | 154.1 | 229.0 | 309.7 | 373.0 | 432.3 | 483.1 | 525.4 | 564.5 | 614.7 | |
| SEM | 2.13 | 3.02 | 4.74 | 6.32 | 7.29 | 8.3 | 10.08 | 12.71 | 13.43 | 14.45 | |
1
See Table 2 for experimental detail.
2
Values (expressed as gram) are means ± SEM, n = 16 rats/diet group. In the 2nd column, Min: Minimum, 1st Q: 25th percentile; 3rd Q: 75th percentile, Max: Maximum. Week 0 = 4 weeks of age (28 days of age).
a,b
Means in a column without a common letter differ, P < 0.05, as analyzed by the unpaired t-test.