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    Effect of Dietary Supplementation of Different Rates of Spirulina (Spirulina platensis) on Growth and Feed Conversion in Guppy (Poecilia reticulata Peters, 1860)
    (Medwell Online, 2010) Dernekbasi, Seval; Unal, Hatice; Karayucel, Ismihan; Aral, Orhan
    In this study, effect of dietary supplementation of different rates (10% Group B, 20% Group C, 30% Group D, 40% Group E) of spirulina (Spirulina platensis) on growth and feed conversion in guppy (Poecilia reticulata) was compared with a commercial stamp food (Group A). Fish fed 40% spirulina performed better than those fed lower levels. At the end of the experiment, there were no significant differences between the all groups in terms of average final weights (p > 0.05). No significant differences were observed in specific growth rate, feed conversion rate and weight gain. However, there were significant differences in terms of feed conversion rate between groups (p < 0.05) and it was the highest in Group E (1.090 +/- 0.044) and the lowest in Group A (2.312 +/- 0.071). Therefore, the best growth rate (1.933 +/- 0.009) and live weight gain (0.085 +/- 0.006) were recorded in. Group E. As a result of the study, 40% spirulina supplementation in the diet for guppy has a positive effect on growth and feed conversion rates.