Table 2.
Chemical composition (% as fed) of extruded dry dog food samples (n = 119) included in this study, determined using near-infrared spectroscopy, applying pre-installed commercial calibrations of FOSS for pet food.
| Trait | Mean | SD | Minimum | Maximum |
|---|---|---|---|---|
| Moisture | 5.56 | 1.22 | 2.50 | 8.00 |
| Crude protein | 28.14 | 3.95 | 21.26 | 43.09 |
| Ether extract | 13.71 | 2.20 | 8.12 | 17.86 |
| Crude fiber | 3.36 | 0.94 | 1.92 | 9.38 |
| Ash | 6.25 | 1.21 | 3.25 | 10.24 |
| Nitrogen-free extract 1 | 42.98 | 5.91 | 23.70 | 54.05 |
SD = standard deviation; 1 Nitrogen-free extract = 100 – (moisture + crude protein + ether extract + crude fiber + ash).