Comparative study on muscle nutritional composition of juvenile bighead carp (Aristichthys nobilis) and paddlefish (Polyodon spathula) fed live feed

Authors : Peisong SHI, Qin WANG, Yuting ZHU, Qianhong GU, Bangxi XIONG

Pages : 321-328

Doi:10.3906/sag-1211-14

View : 17 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The contents of the proximate composition of amino acids and fatty acids in the muscle of juvenile bighead carp insert ignore into journalissuearticles values(Aristichthys nobilis); and paddlefish insert ignore into journalissuearticles values(Polyodon spathula); that were fed with live feed for 60 days were assessed in this investigation. The moisture, crude protein, and crude ash contents of bighead carp muscle were slightly higher than those of paddlefish insert ignore into journalissuearticles values(P > 0.05);. The crude fat content of paddlefish muscle was significantly higher than that of bighead carp insert ignore into journalissuearticles values(P < 0.01);. Seventeen amino acids were detected in the muscle of both bighead carp and paddlefish. The total concentrations of amino acids insert ignore into journalissuearticles values(TAAs);, essential amino acids insert ignore into journalissuearticles values(EAAs);, and delicious amino acids insert ignore into journalissuearticles values(DAAs); in the muscle of bighead carp were higher than in those of paddlefish. Fifteen fatty acids were detected in both bighead carp and paddlefish muscles, including 5 saturated fatty acids insert ignore into journalissuearticles values(SFAs);, 4 monounsaturated fatty acids insert ignore into journalissuearticles values(MUFAs);, and 6 polyunsaturated fatty acids insert ignore into journalissuearticles values(PUFAs);. The concentrations of muscle \sum SFAs, \sum MUFAs, \sum PUFAs, \sum UFAs, \sum SFAs/\sum UFAs, \sum n-6 PUFAs, \sum n-3 PUFAs, eicosapentaenoic acid insert ignore into journalissuearticles values(EPA);, EPA + docosahexenoic acid insert ignore into journalissuearticles values(DHA);, essential fatty acids insert ignore into journalissuearticles values(EFAs);, and half-essential fatty acids insert ignore into journalissuearticles values(HEFAs); in bighead carp were significantly lower than those in paddlefish insert ignore into journalissuearticles values(P < 0.01);. In addition, bighead carp possessed significantly lower muscle \sum n-6 PUFAs/\sum n-3 PUFAs content than paddlefish did insert ignore into journalissuearticles values(P < 0.05);. Muscle DHA content of bighead carp was higher than that of paddlefish insert ignore into journalissuearticles values(P < 0.05);.
Keywords : Key words Bighead carp Aristichthys nobilis, paddlefish Polyodon spathula, muscle, nutritional composition, juvenile fish