Mitochondrial volume densities Vv(mt) for heart, liver,kidney, stomach and intestine scaled to tissue-specific resting metabolic rate(RMR) for harbor seals, dogs and rats
| Species . | Mb (kg) . | N . | Organ . | Tissue-specific RMR (kJ kg−1 day−1) . | Vv(mt)/RMR . |
|---|---|---|---|---|---|
| Harbor seals | 43.8±6.3 | 6 | Heart | 2.4×103 | 7.8×10−3±3.5×10−4δ |
| 6 | Liver | 1.0×103 | 2.5×10−2±1.2×10−3α,δ | ||
| 6 | Kidney | 2.1×103 | 1.0×10−2±5.2×10−4α | ||
| 6 | Stomach | 6.6×101 | 3.7×10−1±2.6×10−2α,δ | ||
| 5 | Intestine | 6.6×101 | 1.4×10−1±1.5×10−2α,δ | ||
| Dogs | 9.2±0.5 | 3 | Heart | 2.9×103 | 6.4×10−3±2.6×10−4 |
| 3 | Liver | 1.6×103 | 1.1×10−2±8.8×10−4δ | ||
| 3 | Kidney | 2.4×103 | 6.9×10−3±3.8×10−4 | ||
| 3 | Stomach | 8.6×101 | 2.5×10−1±3.8×10−2δ | ||
| 3 | Intestine | 8.6×101 | 7.0×10−2±5.2×10−3 | ||
| Rats | 0.48±0.03 | 3 | Heart | 4.1×103 | 5.6×10−3±6.3×10−4 |
| 3 | Liver | 3.5×103 | 3.8×10−3±4.7×10−4 | ||
| 1 | Kidney | 3.1×103 | 6.2×10−3 | ||
| 3 | Stomach | 1.4×102 | 9.4×10−2±2.7×10−2 | ||
| 3 | Intestine | 1.4×102 | 5.3×10−2±1.3×10−2 |
| Species . | Mb (kg) . | N . | Organ . | Tissue-specific RMR (kJ kg−1 day−1) . | Vv(mt)/RMR . |
|---|---|---|---|---|---|
| Harbor seals | 43.8±6.3 | 6 | Heart | 2.4×103 | 7.8×10−3±3.5×10−4δ |
| 6 | Liver | 1.0×103 | 2.5×10−2±1.2×10−3α,δ | ||
| 6 | Kidney | 2.1×103 | 1.0×10−2±5.2×10−4α | ||
| 6 | Stomach | 6.6×101 | 3.7×10−1±2.6×10−2α,δ | ||
| 5 | Intestine | 6.6×101 | 1.4×10−1±1.5×10−2α,δ | ||
| Dogs | 9.2±0.5 | 3 | Heart | 2.9×103 | 6.4×10−3±2.6×10−4 |
| 3 | Liver | 1.6×103 | 1.1×10−2±8.8×10−4δ | ||
| 3 | Kidney | 2.4×103 | 6.9×10−3±3.8×10−4 | ||
| 3 | Stomach | 8.6×101 | 2.5×10−1±3.8×10−2δ | ||
| 3 | Intestine | 8.6×101 | 7.0×10−2±5.2×10−3 | ||
| Rats | 0.48±0.03 | 3 | Heart | 4.1×103 | 5.6×10−3±6.3×10−4 |
| 3 | Liver | 3.5×103 | 3.8×10−3±4.7×10−4 | ||
| 1 | Kidney | 3.1×103 | 6.2×10−3 | ||
| 3 | Stomach | 1.4×102 | 9.4×10−2±2.7×10−2 | ||
| 3 | Intestine | 1.4×102 | 5.3×10−2±1.3×10−2 |
Values are means ± s.e.m. (N = no. of animals). Mb, body mass. Vv(mt), volume density of total mitochondria; all quantities expressed per tissue volume. αSignificantly different from dog (ANOVA, P<0.05); δsignificantly different from rat(ANOVA, P<0.05). Values with no s.e.m. were not included in the analysis and are presented for comparison.