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ThesisItem Open Access Effect of vitamin C on growth performance and haematological parameters of Catla catla Hamilton, 1822(CCSHAU, Hisar, 2023-05-25) Jyoti; Dahiya, TejpalThis study investigated the effects of different doses of vitamin C on the growth, survival, and haematological parameters of C. catla over a period of 60 days. Three different concentrations of vitamin C (500 mg/kg, 1000 mg/kg, and 1500 mg/kg) were supplemented with basal feed in three treatment groups (T1, T2, and T3) while the control group received basal feed without vitamin C supplementation. Catla fry and fingerlings were used as the experimental animals. Fortnightly measurements of growth parameters revealed that the maximum growth was observed in the T2 group, which received vitamin C at a concentration of 1000 mg/kg, while the control group exhibited the lowest growth when fed with only basal feed. Treatment T2 also showed the highest weight gain in both fry and fingerlings. The specific growth rate was higher in T2 compared to other groups. Additionally, T2 demonstrated the best feed conversion ratio and feed conversion efficiency on the 60th day. The survivability percentage was highest in T2, indicating improved survival rates compared to the control group. Furthermore, T2 showed the greatest percentage increase in length for both fry and fingerlings. Haematological parameters of the T2 group were found to be superior to other treatments and the control group, suggesting that vitamin C supplementation acted as an immunostimulant. Parameters such as haemoglobin, RBC count, WBC count, and PCV were significantly higher in the T2 group compared to the control group. Conversely, mean corpuscular volume and mean corpuscular haemoglobin were lower in the T2 group compared to the control group.
