Nutritional Analysis and Evaluation of Eggs of River Sturgeon Acipenser dabryanus
LIU Ya, NI Luyun, WU Xiaoyun, LAI Jiansheng, DU Jun, CHEN Yeyu, SONG Mingjiang, LI Feiyang, GONG Quan
1. Fisheries Research Institute, Sichuan Academy of Agricultural Sciences (Sichuan Fisheries Research Institute), Chengdu 611730, China; 2. Fish Resources and Environment in the Upper Reaches of the Yangtze River Observation and Research Station of Sichuan Province, Chengdu 611730, China
Abstract：To investigate the nutritional composition of river sturgeon Acipenser dabryanus eggs, the proximate nutrients, amino acids, fatty acids, minerals, and vitamin contents were analyzed in eggs of 13-year-old cultured river sturgeon using national standard methods. The nutritional quality was evaluated according to the amino acid scoring standards recommended by the Food and Agriculture Organization and World Health Organization(FAO/WHO). Results showed that there was crude protein content of 28.96%, crude fat 10.88%, moisture 56.84%, and crude ash 1.51% in the eggs. A total of 16 amino acids were detected, with total amino acid content of 59.37%, including 7 essential amino acids accounting for 24.35%, valine being the first limiting amino acid. The essential amino acid composition met FAO/WHO quality protein source standards, with an essential amino acid index of 60.97%, indicating that the egg was high protein quality. Fatty acid analysis revealed that there were 18 types, including 6 saturated fatty acids (27.86%), 4 monounsaturated fatty acids (31.60%), and 8 polyunsaturated fatty acids (40.54%). The eggs contained trace element: copper of 6.25 mg/kg, zinc 75.42 mg/kg, iron 80.68 mg/kg, and manganese 5.45 mg/kg, with the maximal vitamin E content of 35.07 mg/100 g in five vitamins. The dietary theoretical requirements for protein, lipids, eicosapentaenoic acid, and docosahexaenoic acid were estimated for river sturgeon larvae and juveniles based on the nutritional composition of theeggs to provide theoretical basis for feed development.
刘亚, 倪露芸, 吴晓雲, 赖见生, 杜军, 陈叶雨, 宋明江, 李飞扬, 龚全. 长江鲟鱼卵营养成分分析及评价[J]. 水产科学, 2026, 45(4): 539-548.
LIU Ya, NI Luyun, WU Xiaoyun, LAI Jiansheng, DU Jun, CHEN Yeyu, SONG Mingjiang, LI Feiyang, GONG Quan. Nutritional Analysis and Evaluation of Eggs of River Sturgeon Acipenser dabryanus. Fisheries Science, 2026, 45(4): 539-548.
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2026, Vol. 45 
