/l/ Fresh water. /2/ Salt water, /j/ Recommended maximum levels to feed, /k/ Calc. from food Intake 

 per day and assumed average body wel^t of U-months-old flngerllng trout (McLaren et al 'hT). /5/ A 

 generic term Including cyanocobalamln (vitamin ^^2^ and Its hydrogenatlon product (known variously as 

 Bi2a "'" Bl2b^ which has approximately the same biological activity. /6/ Folic acid Is not a chemical 

 entity, but a generic term for pteroylglutamlc acid (folacln), vitamin M, vitamin B^,, factor U, L. easel 

 factor, Norlte eluate factor. /7/ The term is used here as a generic term for nicotinic acid (niacin) 

 and nicotinic acid amide (nicotinamide); also for pellagra preventive (P. P.) factor, eintl-blacktongue 

 factor. /8/ Only 0.08-0.4 mg according to McLaren et al '47. /9/ Includes pyrldoxlne, pyrldoxal and 

 pyridoxamine. 



74 



