Nutritional components analysis of wild and farmed Brachymystax lenok tsinlingensis juvenile fish

doi:10.14088/j.cnki.issn0439-8114.2024.11.030

Abstract

Abstract: The study focused on wild and farmed juvenile Brachymystax lenok tsinlingensis, which had similar body weight and length. Biochemical analysis was used to determine and analyze the muscle and whole fish components. The results showed that there was no significant difference （P>0.05） in the water content, crude protein content, and muscle fat content of wild and farmed Brachymystax lenok tsinlingensis whole fish;the crude fat content of whole fish of farmed Brachymystax lenok tsinlingensis was significantly higher than that of wild Brachymystax lenok tsinlingensis （P<0.05）;the water content and crude protein content of the muscle of farmed Brachymystax lenok tsinlingensis were significantly lower than those of wild Brachymystax lenok tsinlingensis （P<0.05）. 27 fatty acids were detected in the whole fish and muscles of both wild and farmed Brachymystax lenok tsinlingensis, including 9 saturated fatty acids （SFA）, 6 monounsaturated fatty acids （MUFA）, and 12 polyunsaturated fatty acids （PUFA）. The saturated fatty acids of wild Brachymystax lenok tsinlingensis whole fish were significantly higher than those of farmed Brachymystax lenok tsinlingensis （P<0.05）; however, the monounsaturated fatty acids in the whole fish, as well as the monounsaturated fatty acids and polyunsaturated fatty acids in the muscles of wild Brachymystax lenok tsinlingensis, were significantly lower than those of farmed Brachymystax lenok tsinlingensis （P<0.05）. The contents of arginine, threonine, alanine, glycine, leucine, and tyrosine in the muscles of farmed Brachymystax lenok tsinlingensis were significantly lower than those of wild Brachymystax lenok tsinlingensis （P<0.05）;among essential amino acids, only the histidine content in the whole fish of Brachymystax lenok tsinlingensis raised in aquaculture was significantly higher than that of wild Brachymystax lenok tsinlingensis （P<0.05）.

Key words: Brachymystax lenok tsinlingensis, wild, breed, juvenile fish, nutritional components, amino acid, fatty acids

CLC Number:

S963

WU Jin-ming, WU Jin-ping, DONG Chun-yan, CHU Zhi-peng, YE Huan, DU Hao, QIAO Xin-mei. Nutritional components analysis of wild and farmed Brachymystax lenok tsinlingensis juvenile fish[J]. HUBEI AGRICULTURAL SCIENCES, 2024, 63(11): 180-184.

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