Felix N ; Sudharsan M ;

Aquaculture Nutrition vol. 10 (3)   pp. 193-197, Jui 2004

Department of Aquaculture, Fisheries College and Research Institute, Tamil Nadu Veterinary and Animal Sciences University, Thoothukudi, Tamil Nadu, India,
nathanfelix@yahoo.com

A feeding experiment was conducted to determine the effect of the feeding attractant, glycine betaine (betaine hydrochloride) on the growth and feed conversion of juveniles of Macrobrachium rosenbergii (deMan) (mean initial weight 1.12 g). Three types of diets were prepared with the incorporation of glycine betaine at 5, 10 and 15 g kg super(-1) levels along with an unsupplemented control. After 60 days, weight gain, feed intake and food conversion ratio (FCR) were higher in prawn fed the three glycine betaine-added diets compared with the control feed. Among the glycine betaine-added diets, prawn fed glycine betaine at 5 g kg super(-1) level showed highest weight gain (2.73 g) by registering 61.5% increase in growth over control and also higher feed intake (5.79 g) and good FCR (2.12). There were highly significant differences (P < 0.01) in weight gain, feed intake, per day growth and FCR among treatments. There was no significant difference (P > 0.05) in survival among treatments

Prawn culture ;  Diets ;  Food additives ;  Growth rate ;  Food conversion ;  Feeding experiments ;  Food consumption ;  Ingestion ;  Chemical stimuli ;  Feed composition ;  Macrobrachium rosenbergii ; 

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