Effects of Dietary Carbohydrate: Lipid Ratio on Growth and Body Composition of Hybrid Striped Bass Academic Article uri icon


  • A study was conducted to determine the ability of juvenile hybrid striped bass, Morone crysops M. saxatilis , to utilize dietary carbohydrate and lipid for energy. Four semipurified diets containing 35% crude protein were formulated to be isocaloric with various levels of dextrin and menhaden fish oil 50 the carbohydrate: lipid ratio (CHO:L) ranged from 2510 to 42:2.5. Diets were fed in triplicate to groups of hybrid striped bass initially averaging 1.5 g/fish in 38 L aquaria receiving a constant supply of hard (> 180 mg/L as CaCO3) freshwater for a period of eight weeks. Weight gain, feed and protein efficiencies were similar among all dietary groups. Hepatosomatic index (liver weight 100/body weight), muscle ratio (whole muscle weight 100/body weight) and condition factor were also similar, while intraperitoneal fat (IPF) ratio (IPF weight 100/ body weight) was significantly (P 0.05) increased as CHO:L decreased. Proximate composition of muscle did not show any effects of diet. However, dry matter and lipid of wholebody increased significantly as CHO:L decreased; conversely wholebody protein was significantly reduced. Moreover, liver glycogen significantly increased as CHO:L decreased. These data indicate hybrid striped bass are able to efficiently utilize carbohydrate for energy; and dietary lipid, which generally caused increased lipid deposition in various tissues, could be partially replaced with carbohydrate to improve fish quality and productivity. Copyright 1992, Wiley Blackwell. All rights reserved

published proceedings

  • Journal of the World Aquaculture Society

author list (cited authors)

  • Nematipour, G. R., Brown, M. L., & Gatlin, D. M.

citation count

  • 73

complete list of authors

  • Nematipour, Gholam R||Brown, Michael L||Gatlin, Delbert M

publication date

  • June 1992