Abstract Analysis of the physicochemical properties of fresh eggs (raw material for caviar production) of the Salmonidae [sea trout (Salmo trutta L. 1758) and rainbow trout (Oncorhynchus mykiss, Walbaum 1792)] and the acipenseridae [siberian sturgeon (Acipenser baeri Brandt, 1869)], as well as sturgeon hybrids (Acipenser baeri Brandt, 1869 × Acipenser gueldenstaedti Brandt & Ratzeburg, 1833), included determination of basic physicochemical parameters (pH, dry weight, content of protein, fat, fiber and ash), amino acid composition and fatty acid profile. Compared to the Acipenseridae, Salmonidae eggs yielded a 22.5% higher total protein content, a 40.0% higher level of essential amino acids (EAA) and a 57.5% lower crude fat content. The sea trout eggs showed also a completely different fatty acids profile and hence values of lipid indices (lowest PUFA value – 11.72%, highest SFA value – 39.86%). The rainbow trout and sturgeon eggs had a similar fatty acid profile, and were characterized by a high nutritional and dietary value.

中文翻译：

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三文鱼和鲤科鱼卵的营养成分

摘要 分析鲑科 [海鳟 (Salmo trutta L. 1758) 和虹鳟 (Oncorhynchus mykiss, Walbaum 1792)] 和鲟科 [西伯利亚鲟 (Acipenser baeri , 1869)] 以及鲟鱼杂交种 (Acipenser baeri Brandt, 1869 × Acipenser gueldenstaedti Brandt & Ratzeburg, 1833)，包括测定基本理化参数（pH、干重、蛋白质、脂肪、纤维和灰分含量）、氨基酸组成和脂肪酸谱。与 Acipenseridae 相比，鲑科鱼卵的总蛋白质含量高 22.5%，必需氨基酸 (EAA) 水平高 40.0%，粗脂肪含量低 57.5%。海鳟鱼卵也显示出完全不同的脂肪酸谱，因此脂质指数值（最低 PUFA 值 - 11.72%，最高 SFA 值 - 39.86%）。虹鳟鱼和鲟鱼卵具有相似的脂肪酸组成，并且具有很高的营养和膳食价值。