Table 4.
The optical properties (absorption coefficient μa [cm−1], reduced scattering coefficient μs’ [cm−1], and differential pathlength factor DPF [−]) and the hemodynamic parameters (deoxygenated hemoglobin, HHb [μM]; oxygenated hemoglobin O2Hb [μM]; total hemoglobin, tHb [μM]; tissue oxygen saturation, StO2 [%]) for the different tissue types.
| μa [cm−1] | μs’ [cm−1] | DPF [−] | HHb [μM] | O2Hb [μM] | tHb [μM] | StO2 [%] | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Species | Tissue | RED | IR | RED | IR | RED | IR | ||||
| Horse | Triceps Brachii | 0.48 ± 0.11 | 0.31 ± 0.06 | 8.5 ± 1.3 | 5.1 ± 0.5 | 3.4 ± 0.3 | 3.2 ± 0.3 | 62.1 ± 15.7 | 75.3 ± 20.6 | 137.4 ± 29.0 | 54.7 ± 7.1 |
| Longissimus Dorsi | 0.17 ± 0.09 | 0.16 ± 0.06 | 11.0 ± 1.4 | 8.7 ± 0.9 | 6.5 ± 1.1 | 6.2 ± 1.3 | 20.7 ± 11.6 | 40.3 ± 18.6 | 61.0 ± 29.4 | 67.3 ± 5.2 | |
| Gluteus Superficialis | 0.20 ± 0.14 | 0.17 ± 0.10 | 11.1 ± 2.2 | 8.7 ± 1.6 | 6.3 ± 1.5 | 6.3 ± 1.7 | 25.0 ± 16.9 | 42.8 ± 30.4 | 67.8 ± 46.6 | 63.6 ± 4.3 | |
| Dog | Triceps Brachii | 0.24 ± 0.12 | 0.19 ± 0.07 | 12.5 ± 3.0 | 7.8 ± 1.9 | 5.9 ± 1.2 | 5.1 ± 1.1 | 41.3 ± 22.6 | 40.3 ± 12.0 | 81.6 ± 34.3 | 51.6 ± 6.4 |
| Biceps Femoralis | 0.18 ± 0.07 | 0.16 ± 0.05 | 12.1 ± 1.8 | 8.1 ± 1.5 | 6.4 ± 0.9 | 5.7 ± 1.0 | 30.8 ± 11.6 | 34.9 ± 14.7 | 65.6 ± 25.8 | 52.8 ± 4.2 | |
| Head | 0.42 ± 0.13 | 0.33 ± 0.08 | 14.1 ± 4.8 | 6.6 ± 2.6 | 4.7 ± 0.7 | 3.5 ± 0.9 | 72.8 ± 23.8 | 76.7 ± 20.3 | 149.5 ± 40.9 | 51.6 ± 5.2 | |
| Sheep | Head (0.67 < year < 1) | 0.24 ± 0.03 | 0.17 ± 0.02 | 13.8 ± 1.8 | 10.6 ± 1.6 | 6.0 ± 0.5 | 6.2 ± 0.5 | 25.3 ± 3.8 | 51.8 ± 7.0 | 77.1 ± 9.0 | 67.1 ± 3.6 |
| Head (1 < year < 2) | 0.19 ± 0.02 | 0.14 ± 0.01 | 13.2 ± 2.3 | 10.8 ± 1.8 | 6.4 ± 0.5 | 6.8 ± 0.5 | 19.3 ± 2.5 | 44.8 ± 5.8 | 64.1 ± 5.6 | 69.7 ± 4.3 | |
| Head (3 < year < 4) | 0.22 ± 0.02 | 0.16 ± 0.01 | 15.5 ± 2.3 | 12.0 ± 1.8 | 6.7 ± 0.7 | 6.9 ± 0.6 | 22.2 ± 3.0 | 48.6 ± 2.2 | 70.8 ± 3.7 | 68.8 ± 3.1 | |
| Head (6 < year < 7) | 0.17 ± 0.03 | 0.12 ± 0.02 | 8.8 ± 1.0 | 7.2 ± 0.9 | 5.5 ± 0.5 | 5.9 ± 0.4 | 17.4 ± 3.5 | 35.9 ± 6.1 | 53.3 ± 9.0 | 67.3 ± 3.1 | |
Values are average and corresponding standard deviation across all repetitions and locations. RED = 685 nm for horse and dog, 670 nm for sheep. IR = 830 nm.