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In vivo study of the oestrogenic activity of milk

Lidia Radko
Lidia Radko
 und 
Andrzej Posyniak
Andrzej Posyniak
   | 23. Sept. 2021
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Online veröffentlicht: 23. Sept. 2021
Seitenbereich: 335 - 340
Eingereicht: 30. März 2021
Akzeptiert: 26. Aug. 2021
DOI: https://doi.org/10.2478/jvetres-2021-0049
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© 2021 L. Radko, A. Posyniak. published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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
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Biologie, Molekularbiologie, Mikrobiologie und Virologie, andere, Medizin, Veterinärmedizin
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