Differences in muscle nutrients between wild and cultured populations of Brachymystax lenok tsinlingensis
Brachymystax lenok tsinlingensis(wild population)is one of the national class Ⅱ protected aquatic wild animals.To understand the differences of traits between wild and cultured populations and distinguish wild popula-tion from the cultured population,we investigated the differences in muscle nutritive components between wild and cultured populations.The results showed that there were significant differences in muscle general nutrient composi-tion,fatty acid composition and content,mineral and micronutrient contents between both populations,but no difference in the composition and content of amino acids.Water,crude protein,and crude ash contents in the mus-cle of the wild population were significantly higher than those of the cultured population(P＜0.05),while crude fat content in the cultured population was significantly higher than that in the wild population(P＜0.05).C12:0 was detected only in the wild population.The contents of saturated fatty acid,monounsaturated fatty acids and polyun-saturated fatty acids were significantly lower in the wild population than in the cultured populations(P＜0.05).The contents of K,Na,Ca,Mg,P,and Zn were significantly higher in the wild population than in the cultured popula-tion(P＜0.05).In conclusion,the composition and content of fatty acids,minerals,and micronutrients in muscle were significantly different between the wild and cultured populations,which could be used as a basis for identifica-tion of wild and cultured populations,and provide a reference for the conservation and management of B.lenok tsin-lingensis.
万方数据
维普
