Table 2. DEXA and QMR Means ± SEM.
| Carcass | Pelt | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| FM | LBM | FM | LBM | ||||||
| QMR | DEXA | QMR | DEXA | QMR | DEXA | QMR | DEXA | ||
| Sex | Males | 48.77 ± 20.74 | 93.37 ± 45.17 | 329.80 ± 141.33 | 260.21 ± 43.94 | 28.97 ± 25.04 | 75.30 ± 38.17 | 86.73 ± 49.29 | 35.09 ± 19.00 |
| Females | 39.79 ± 14.54 | 73.11 ± 31.34 | 207.57 ± 82.11 | 160.95 ± 15.79 | 17.58 ± 11.05 | 44.98 ± 20.23 | 41.87 ± 24.16 | 5.25 ± 7.44 | |
| OVX + E2 | 24.36 ± 4.58 | 41.86 ± 8.10 | 142.90 ± 18.74 | 143.64 ± 10.38 | 10.01 ± 3.34 | 27.43 ± 6.64 | 24.29 ± 2.82 | 1.43 ± 3.20 | |
| OVX + V | 24.24 ± 4.58 | 43.24 ± 8.45 | 139.11 ± 45.67 | 156.06 ± 13.48 | 11.18 ± 4.45 | 30.00 ± 5.10 | 41.61 ± 40.15 | 1.82 ± 3.38 | |
| Age | Young | 31.60 ± 8.80 | 56.21 ± 16.69 | 176.15 ± 47.30 | 178.49 ± 41.37 | 13.16 ± 6.08 | 39.47 ± 14.42 | 39.39 ± 23.56 | 9.29 ± 15.29 |
| Middle-aged | 56.28 ± 21.47 | 109.70 ± 46.57 | 359. 50 ± 145.36 | 219.60 ± 73.02 | 34.63 ± 24.83 | 77.60 ± 41.99 | 89.54 ± 53.13 | 25.35 ± 21.84 | |
| Diet | HF | 42.12 ± 20.05 | 84.40 ± 41.27 | 256.58 ± 139.01 | 189.74 ± 49.51 | 24.14 ± 20.31 | 59.28 ± 34.80 | 66.55 ± 48.41 | 17.35 ± 20.47 |
| LF | 35.42 ± 14.27 | 58.07 ± 28.08 | 201.88 ± 91.58 | 192.64 ± 63.60 | 14.29 ± 11.49 | 41.15 ± 23.20 | 40.23 ± 26.57 | 10.34 ± 16.33 | |
| Diet Length | 24 h | 21.20 ± 6.29 | 40.08 ± 5.12 | 127.43 ± 48.98 | 149.23 ± 17.00 | 10.82 ± 5.35 | 26.69 ± 5.06 | 44.17 ± 46.20 | 2.23 ± 4.15 |
| 72 h | 33.31 ± 7.96 | 58.90 ± 16.15 | 184.17 ± 42.19 | 183.37 ± 42.27 | 13.54 ± 6.14 | 41.60 ± 14.38 | 38.60 ± 17.74 | 10.46 ± 16.15 | |
| 30 d | 56.28 ± 21.47 | 109.70 ± 46.57 | 359. 50 ± 145.36 | 219.60 ± 73.02 | 34.63 ± 24.83 | 77.60 ± 41.99 | 89.54 ± 53.13 | 25.35 ± 21.84 | |
Means and corresponding SEM are presented in grams. Each group includes all animals corresponding to the variable. For example, when divided by sex, the row for males includes all males not further separated by age or diet.
Rats were dissected so that the skin and subcutaneous fat (pelt) are removed using the muscles of the trunk and appendages as a boundary for the remaining carcass. This allows visceral and subcutaneous fat to be measured separately. The pelt contains the subcutaneous fat and the carcass contains the visceral fat.
Abbreviations: fat mass (FM); lean body mass (LBM); quantitative magnetic resonance (QMR); dual x-ray absorptiometry (DEXA); ovariectomy (OVX); estradiol (E2); vehicle, (V); high-fat (HF); low-fat (LF).