Uterotrophic effects of different kinds of milk in immature female hamsters
| Group | Body weight | Wet weight of the uterus | Dry weight of the uterus | |||||
|---|---|---|---|---|---|---|---|---|
| Initial | Terminal | Percentage gain | Absolute (mg) | Fold induction over control | Relative (mg/100g) | Absolute (mg) | Relative (mg/100g) | |
| Negative control | 13.7 ± 2.14 | 25.2 ± 3.54 | 83.9 | 35.0 ± 6.53 | 1 | 139 ± 12.7 | 7.1 ± 1.20 | 28.1 ± 2.60 |
| Raw milk from individual cows | ||||||||
| 14.6 ± 1.23 | 27.7 ± 1.47 | 33.1 ± 3.03 | 122 ± 13.5 | 6.2 ± 0.71 | 22.3 ± 3.10 | |||
| 1 | P < 0.055 | P < 0.118 | 89.7 | P < 0.215 | 0.96 | P < 0.060 | P < 0.053 | P < 0.060 |
| 13.7 ± 2.61 | 22.2 ± 3.37 | 26.1 ± 7.98 | 117 ± 14.7 | 4.9 ± 1.59* | 22.0 ± 3.45 | |||
| 2 | P < 0.832 | P < 0.186 | 62.0 | P < 0.066 | 0.75 | P < 0.055 | P < 0.045 | P < 0.080 |
| 13.7 ± 1.72 | 23.7 ± 2.33 | 27.9 ± 5.62 | 118 ± 26.8 | 5.7 ± 1.00 | 24.4 ± 5.36 | |||
| 3 | P < 0.908 | P < 0.613 | 73.0 | P < 0.060 | 0.80 | P < 0.065 | P < 0.070 | P < 0.064 |
| 4 | 14.7 ± 1.84 | 25.4 ± 3.20 | 72.8 | 28.4 ± 5.86 | 0.81 | 112 ± 18.1 | 5.6 ± 0.82 | 22.0 ± 3.17 |
| P < 0.318 | P < 0.999 | P < 0.055 | P < 0.074 | P < 0.059 | P < 0.051 | |||
| 5 | 14.6 ± 1.52 | 24.2 ± 2.22 | 65.8 | 28.9 ± 4.28 | 0.83 | 120 ± 16.0 | 6.0 ± 1.20 | 25.0 ± 4.41 |
| P < 0.243 | P < 0.633 | P < 0.061 | P < 0.061 | P < 0.054 | P < 0.062 | |||
| Retail milk | ||||||||
| 6 | 13.7 ± 2.63 | 27.6 ± 3.21 | 101 | 36.6 ± 6.33 | 1.05 | 119 ± 16.5 | 6.7 ± 0.97 | 21.8 ± 3.00* |
| P < 0.610 | P < 0.077 | P < 0.305 | P < 0.070 | P < 0.237 | P < 0.031 | |||
| 7 | 12.7 ± 1.33 | 22.4 ± 2.30 | 76.4 | 26.0 ± 4.35 | 0.74 | 116 ± 17.9 | 5.0 ± 0.82* | 22.4 ± 3.66 |
| P < 0.075 | P < 0.187 | P < 0.052 | P < 0.060 | P < 0.046 | P < 0.062 | |||
| 8 | 12.0 ± 0.80 | 22.4 ± 1.76 | 86.7 | 36.6 ± 8.91 | 1.05 | 162 ± 25.3 | 7.6 ± 2.05 | 33.6 ± 6.03 |
| P < 0.352 | P < 0.107 | P < 0.346 | P < 0.062 | P < 0.266 | P < 0.059 | |||
| 9 | 12.3 ± 0.68 | 24.9 ± 2.24 | 102 | 43.7 ± 6.24 | 1.25 | 175 ± 17.6 | 8.0 ± 0.33 | 31.9 ± 3.11 |
| P < 0.056 | P < 0.949 | P < 0.063 | P < 0.071 | P < 0.088 | P < 0.053 | |||
| 12.6 ± 2.81 | 26.0 ± 3.83 | 127 ± 24.6*** | 493 ± 64.9*** | 19.6 ± 4.13*** | 76.3 ± 11.70*** | |||
| Positive control | P < 0.355 | P < 0.855 | 106 | P < 0.0008 | 3.63 | P < 0.0006 | P < 0.0007 | P < 0.0008 |
| Mann–Whitney | test | P < 0.058 | P < 0.082 | P < 0.084 | P < 0.061 | |||
Milk sample origins and type
| Sample number | Raw milk from individual animals |
|---|---|
| 1 | Cow, 120 days of lactation |
| 2 | Cow, 126 days of lactation |
| 3 | Cow, 110 days of lactation |
| 4 | Cow, 122 days of lactation |
| 5 | Cow, 135 days of lactation |
| Retail milk | |
| 6 | whole-fat cow’s milk, UHT |
| 7 | whole-fat cow’s milk, pasteurized |
| 8 | reduced-fat cow’s milk, UHT |
| 9 | fat-free cow’s milk, UHT |