Table 2.
Non-pregnant | Pregnant | ||
---|---|---|---|
| |||
D16 | D19 | ||
Biometry | |||
Total body weight BW (g) | 21.0 ± 0.4a (20) | 31.0 ± 1.1b (13) | 35.0 ± 1.2b (16) |
Hysterectomised weight HW (g) | - | 24.0 ± 0.7b (13) | 23.0 ± 0.8b (15) |
Liver (mg) (% )† | 1099 ± 28a (10) | 1903 ± 57b (13) | 1856 ± 76b (16) |
5.5 ± 0.2a (10) | 7.9 ± 0.1b (13) | 8.1 ± 0.3b (16) | |
Kidney (mg) (% )† | 234.0 ± 6.5a (10) | 277 ± 12b (11) | 271 ± 11b (15) |
1.20 ± 0.02 (10) | 1.10 ± 0.02 (11) | 1.20 ± 0.04 (15) | |
Heart (mg) (% )† | 106.0 ± 6.5a (10) | 132 ± 5b (13) | 137 ± 7b (16) |
0.50 ± 0.03 (10) | 0.50 ± 0.01 (13) | 0.60 ± 0.03 (16) | |
Retroperitoneal fat (mg) (%)† | 30 ± 2a (16) | 73 ± 7b (13) | 63 ± 6b (16) |
0.1 ± 2.0a (16) | 0.30 ± 0.03b (13) | 0.30 ± 0.03b (16) | |
Gravid uterus (g) | - | 7.3 ± 0.4 (13) | 11.2 ± 0.7* (15) |
Placenta average per litter (mg) | - | 104.0 ± 1.8 (13) | 88.0 ± 2.7* (16) |
Fetus average per litter (mg) | - | 427 ± 12 (13) | 1204 ± 17* (16) |
Litter size | - | 7.8 ± 0.5 (13) | 7.1 ± 0.4 (16) |
Biochemical composition | |||
DEXA absolute fat mass (g)† | 3.9 ± 0.2 (10) | 4.4 ± 0.3 (7) | 4.5 ± 0.2 (7) |
DEXA fat mass (%)† | 17.6 ± 0.9 (10) | 17.8 ± 1.2 (7) | 19.2 ± 0.5 (7) |
DEXA absolute lean mass (g)† | 18.2 ± 0.6a (10) | 20.3 ± 0.5b (7) | 18.7 ± 0.7ab (10) |
DEXA lean mass (%)† | 82.4 ± 0.9 (10) | 82.3 ± 1.2 (7) | 80.9 ± 0.5 (10) |
Hepatic glycogen (mg/g) | 55 ± 3 (15) | 49 ± 1 (6) | 57 ± 6 (6) |
Total hepatic glycogen (mg) | 61 ± 4a (15) | 86 ± 3b (6) | 103 ± 11b (6) |
Hepatic fat content (%) | 5.4 ± 0.3 (15) | 5.1 ± 0.3 (6) | 4.7 ± 0.3 (6) |
Total hepatic fat content (mg) | 59 ± 5a (15) | 91 ± 6b (6) | 86 ± 6b (6) |
Skeletal muscle fat content (%)§ | 4.0 | 15.4 | 20.4 |
Data are expressed as mean ± SEM with the number of dams/litters in parentheses. Values with different superscripts are significantly different from each other (p<0.05, one way ANOVA).
significant difference between D16 and D19 pregnant dams (p<0.05, t-test).
Organ weights and DEXA results were expressed as % of total body weight for NP females and of hysterectomised for pregnant dams.
skeletal muscle fat content was measured on samples pooled from 3-5 animals from each group.