Comparison on muscle composition of Hypophthalmichthys molitrix and Aristichthys mobilis in two reservoirs with different trophic levels

Muscles components of Hypophthalmichthys molitrix and Aristichthys mobilis in Jinshahe Reservoir and Taoyuanhe Reservoir were analyzed and compared by the national standard(GB)test method according to FAO and WHO evaluation criteria.The results showed that crude protein(P<0.05)and crude ash(P>0.05)contents in Jinshahe Reservoir were higher than those in Taoyuanhe Reservoir.The crude fat content of A.mobilis in Jinshahe Reservoir was significantly higher than that in Taoyuanhe Reservoir(P<0.05).Amino acid composition of H.molitrix and A.mobilis in two reservoirs were identical in category hut different in content.The contents of total amino acids and flavor amino acid of H.molitrix in Jinshahe Reservoir were significantly higher than that in Taoyuanhe Reservoir(P<0.05),and not significant among other amino acids.EAAI of H.molitrix and A.mobilis in Jinshahe Reservior were both higher than that in Taoyuanhe Reservior.By evaluation of these indicators,we know that muscle quality of H.molitrix and A.mobilis in Jinshahe Reservoir is both better than that in Taoyuanhe Reservoir.