7Kasper C S,White M R,Brown P B.Betaine can replace choline in diets for juvenile Nile Tilapia,Oreochromis niloticus[J].Aquaculture,2002,205:119-126.
8Craig S R,Gatlin D M.growth and body composition of juvenile red drum (Sciaenops ocellatus)fed diets containing lecithinand supplemental choline[J].Aquaculture,1997,151 (1):259-267.
9Twibell R G,Brown P B.Dietary choline requirement of juvenile yellow perch (Perca flavescens)[J].The Journal of Nutrition,2000,130(1):95-99.
