Effects of Reproduction on Nutritional Composition of Foot Muscle in Male and Female Neptunea cumingii
SUN Yiqing1,2, WANG Shuo2,3, LI Hualin2,3, LI Dacheng2,3, TENG Weiming2,3, SUN Yongxin2,3,4, LIU Haijiao5, WANG Qingzhi2,3,4
1. College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China; 2. Dalian Key Laboratory of Genetic Resources for Marine Shellfish, Liaoning Ocean and Fisheries Science Research Institute, Dalian 116023, China; 3. Key Laboratory of Protection and Utilization of Aquatic Germplasm Resource, Ministry of Agriculture and Rural Affairs, Liaoning Ocean and Fisheries Science Research Institute, Dalian 116023, China; 4. Laboratory of Dalian Jinshiwan, Dalian 116034, China; 5. Dalian Changhai Yide Aquaculture Company Limited, Dalian 116001, China
Abstract：In the experiment, the differences and change patterns were systematically investigated in muscle nutritional components of male and female Neptunea cumingii before and after reproduction using biochemical analysis methods. Samples of female and male N. cumingii were collected during pre- and post-reproductive phases and divided into 4 groups according to reproductive stage and sex for analysis of protein, fat, glycogen, amino acid, and fatty acid contents. The results demonstrated that N. cumingii is a high-protein (16.1%—18.0%), low-fat (0.3%—0.6%) seafood with balanced nutrition and unique flavor. Post-reproduction, protein content in muscle of both female and male N. cumingii was significantly decreased, with decline rates of 7.2% and 10.6%, respectively. Total amino acid content was also decreased significantly, among which the essential amino acids lysine (decline of 12.5% in female, decline 14.9% in male) and leucine (decline of 9.5% in female, decline of 14.1% in male) showed significant consumption. Pre-reproduction, both fat content and glycogen content of male N. cumingii were significantly higher than those of females. Post-reproduction, both were found to be decreased in males and increased significantly in females, with sex differences becoming less obvious. Post-reproduction, the contents of functional fatty acids eicosapentaenoic acid and docosahexaenoic acid were found to be decreased in both females and males, males showing greater decline rates. The reproductive activities were found to significantly affect the nutritional composition of N. cumingii muscle, with males showing more significant nutritional consumption, and sex differences tended to diminish post-reproduction. The findings can provide scientific basis for sustainable development of N. cumingii resources and formulation of precision aquaculture strategies.
孙艺卿, 王朔, 李华琳, 李大成, 滕炜鸣, 孙永欣, 刘海娇, 王庆志. 繁殖对香螺雌雄个体腹足的营养组成影响[J]. 水产科学, 2026, 45(2): 239-247.
SUN Yiqing, WANG Shuo, LI Hualin, LI Dacheng, TENG Weiming, SUN Yongxin, LIU Haijiao, WANG Qingzhi. Effects of Reproduction on Nutritional Composition of Foot Muscle in Male and Female Neptunea cumingii. Fisheries Science, 2026, 45(2): 239-247.
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2026, Vol. 45 
