Immunostimulatory Effect of Supplementary Diet Vitamin C on Growth, Haematology, Survival and Immunity of Fish, Catla Catla.
Journal Title: IOSR Journal of Pharmacy (IOSRPHR) - Year 2018, Vol 8, Issue 12
Abstract
The aim of this study was to assess the effects of vitamin C (Vit C) on the growth, blood parameters, haematocrit and survival in juvenile of carp fish Catla catla. Vitamin C (Ascorbic Acid) requirement of juvenile Catla catla was also studied by incorporating varying levels of Ascorbic acid in a 20% crude protein diet to obtain 0, 10, 20, 40, 80 and 120 mg ascorbic acid equivalent kg-1 diet. Juvenile fish of 5.25g ± 0.03g initial body weight were used for the present study. After 120 days of the experiment, the fish fed AA supplemented diets induced significantly (P<0.05) higher specific growth rate (SGR), protein conversion efficiency (PCE) and protein efficiency ratio (PER) and significantly (P<0.05) better feed conversion ratios (FCR) than fish fed with non supplemented diet. Fish fed non supplemented diet recorded a 15% rate of mortality, where as those fed with a diet supplemented with 120 mg ascorbic acid kg-1 had mortality as low as 0.05%. Haematological indices showed a significant increase (P<0.05) with dietary AA levels. The maximum growth rate was observed in fish fed with 120mg kg-1 of ascorbic acid, whereas the stunted and uneven growth appeared at lower levels of ascorbic acid. However 80 mg ascorbic acid kg-1 supplemented diet is considered as the optimal level required for juvenile Catla catla. The results presented in the current study revealed that vitamin C is a beneficial dietary supplement for improving the growth performance due to more supply of oxygen to deeper tissue of carp fish, Catla catla. A satisfactory level appeared to be 120mg ascorbic acid (AA) kg diet which is therefore the level recommended for supplementing common carp food in aquaculture for high yielding.
Authors and Affiliations
S. Janardana Reddy
Keywords
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