Indices Domesticated females Winter females Matured in artificial conditions for the first time Matured in artificial conditions for the 3-4-th time Dry matter 39.4 ± 1.1 38.1 ± 2.5 37.4 ± 4.4 Protein 25.8 ± 0.5 24.2 ± 2.1 27.3 ± 3.5 Fat 13.3 ± 1.5 12.9 ± 1.0 8.7 ± 1.2 Mineral matters 1.2 ± 0.4 1.6 ± 0.2 1.6 ± 0.3

Table 4: Biochemical structure of Russian sturgeon roe (% of raw matter)