Evaluation of Medicinal Plant based Diet on growth indices of Cyprinus carpio

Abstract In the Todays era aquaculture and pisciculture are most important aspects in the global economic development of India. Due to weak immune system and infectious diseases accounts 60% loss of fish production. So we have to develop and modulate fish immunology. A study analysis that development of immunity by medicinal plant extract rich diet. The present study evaluates with different concentrations of medicinal plant extract for a specified feeding period. Growth indices such as weight gain, specific growth rate (SGR), and feed conversion ratio (FCR) were recorded. Hematological, immunological, and antioxidant parameters were analyzed using standard . The present investigation examined the impact of dietary supplementation of medicinal plant extracts on the growth performance, hematological indices, immune response, antioxidant activity, and disease resistance of the common carp, Cyprinus carpio. Experimental diets were formulated by incorporating selected plant-derived extracts at appropriate concentrations and were provided to fish under controlled culture conditions for a specific feeding trial. Growth parameters such as weight gain, feed conversion ratio, and specific growth rate were recorded throughout the experimental period. In addition, hematological variables and immunological indicators were analyzed to determine the physiological health status of the fish. The results of the study revealed that fish fed with diets containing medicinal plant extracts demonstrated significantly improved growth performance compared to the control group. Enhanced hematological parameters and immune responses were also observed in the treated groups, indicating better physiological condition and improved resistance to stress and pathogens. Furthermore, antioxidant enzyme activities, including key enzymes involved in oxidative stress regulation, were markedly elevated in fish receiving plant-supplemented diets. These findings suggest that bioactive compounds present in medicinal plants can stimulate metabolic activity, enhance immune defense mechanisms, and strengthen antioxidant capacity in cultured fish. Overall, the study indicates that the incorporation of medicinal plant extracts in fish diets may act as a natural growth promoter and immunostimulant in carp aquaculture.