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Pakistan Journal of Biological Sciences

Year: 2011 | Volume: 14 | Issue: 1 | Page No.: 64-68
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Authors

D.V. Hien

S. Doolgindachbaporn

Keywords

Research Article

Effect of Niacin and Folic Acid in Feed Rations on Growth and Live Weights of Green Catfish (Mystus nemurus Valenciennes 1840)

D.V. Hien and S. Doolgindachbaporn
This study aims to justify effects of niacin and folic acid in feed rations on growth and survival rate of the fish under in vitro conditions. A Completely Randomized Design (CRD) with four replications for Experiment I and three replications for Experiment II was used. Niacin (0, 5, 10, 20 and 40 mg kg-1) and folic acid (0, 2, 4, 6 and 8 mg kg-1) were used for Experiments I, and II, respectively. The cement tanks were used for Experiment I and fibre tanks for Experiment II. A static water system was used. Water temperature was maintained at a range from 26 to 30°C with pH values from 7.4 to 7.9. The results showed that niacin at a rate of 10 mg kg-1 feed ration gave significant differences on weight gained %, survival %, protein efficiency ratio, specific growth rate % and feed conversion ratio with mean values of 99.92, 100, 1.18, 5.77 and 1.35, respectively. Folic acid at a rate of 2 mg kg-1 gave significant differences on weight gained %, survival %, protein efficiency ratio, specific growth rate % and feed conversion ratio with mean values of 108.88, 100, 1.22, 6.13 and 1.43, respectively. Niacin at a rate of 10 and 2 mg kg-1 of folic acid were the best rates for in vitro culture of Green catfish.
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