| Popis: |
In this paper, approximate nutritional components and amino acid content were determined in muscles of female wild population (WP) with body weight of 2 500 - 3 000 g and female cultured population (CP) with body weight of 750-1 250 g masu salmon Oncorhynchus masou in the gonadal development stage IV by conventional method. The results showed that there were significantly higher crude protein and significantly lower crude fat in fresh muscle of WP than that in CP (P < 0.05), but not significant differences in the contents of moisture and crude ash between WP and CP (P > 0.05). Eighteen kinds of amino acids were detected in muscles of WP and CP, with higher total content of amino acids (TAA), essential amino acids (EAA) and four kinds of delicious amino acids (DAA) in WP than those in CP (P < 0.05). The amino acid score (AAS) and chemical score (CS) revealed that the first limiting amino acid was tryptophan in two populations, with essential amino acid index (EAAI) of 75.59% in WP and 70.77% in CP. The findings indicated that the amino acid contents in muscles of CP are lower than that of WP, but the amino acid nutritional value evaluation indicators of both populations are very close, and both have high nutritional value. |
