Table 1.
Statistical data for “food intake” (A) “energy intake” (B) and “locomotor activity” (C) of preference tests with two of the following test foods: powdered standard chow (STD), potato chips (PC), carbohydrates (CH), fat (F), and the mixture of fat and carbohydrates (FCH).
| Food | Mean (%) | SD (%) | df | p-Value | t-Value | Number of single tests | Number of animals | See figure |
|---|---|---|---|---|---|---|---|---|
| (A) Food intake | ||||||||
| STD | 46 | 3 | 1 | 0.3311 | –1.746 | 12 | 8 | 3A |
| STD | 54 | 3 | ||||||
| PC | 98 | 0 | 1 | 0.0035 | 181.0 | 12 | 10 | 3A |
| STD | 2 | 0 | ||||||
| PC | 99 | 1 | 3 | 8.8 × 10-7 | 135.7 | 36 | 18 | 3A |
| CH | 1 | 1 | ||||||
| PC | 83 | 8 | 3 | 0.0040 | 8.050 | 48 | 18 | 3A |
| F | 17 | 8 | ||||||
| PC | 54 | 12 | 3 | 0.5634 | 0.647 | 50 | 18 | 3A |
| FCH | 46 | 12 | ||||||
| (B) Energy intake | ||||||||
| STD | 46 | 3 | 1 | 0.3311 | –1.746 | 12 | 8 | 3B |
| STD | 54 | 3 | ||||||
| PC | 98 | 0 | 1 | 0.0022 | 291.0 | 12 | 10 | 3B |
| STD | 2 | 0 | ||||||
| PC | 100 | 1 | 3 | 3.4 × 10-7 | 186.9 | 36 | 18 | 3B |
| CH | 0 | 1 | ||||||
| PC | 84 | 8 | 3 | 0.0034 | 8.555 | 48 | 18 | 3B |
| F | 16 | 8 | ||||||
| PC | 53 | 12 | 3 | 0.6458 | 0.509 | 50 | 18 | 3B |
| FCH | 47 | 12 | ||||||
| (C) Locomotor activity | ||||||||
| STD | 52 | 3 | 1 | 0.5089 | 0.973 | 6 | 8 | 3C |
| STD | 48 | 3 | ||||||
| PC | 90 | 4 | 1 | 0.0421 | 15.08 | 12 | 10 | 3C |
| STD | 10 | 4 | ||||||
| PC | 97 | 1 | 1 | 0.0070 | 90.58 | 24 | 10 | 3C |
| CH | 3 | 1 | ||||||
| PC | 86 | 5 | 1 | 0.0568 | 11.19 | 36 | 10 | 3C |
| F | 14 | 5 | ||||||
| PC | 66 | 1 | 1 | 0.0262 | 24.31 | 36 | 10 | 3C |
| FCH | 34 | 1 |
Mean and SD of the relative food/energy intake or locomotor activity of the independent animal groups (cages) are presented. The p- and t-values are calculated via two-sided paired Student’s t-test with df as the degree of freedom. Furthermore, number of single tests and number of animals are given.