Dietary Phytoimmunostimulant Enhanced Hematological Status and Survival Rate of Common Carp (Cyprinus carpio L.)

This study determined the effectiveness of mango leaves (Mangifera indica), guava leaves (Psidium guajava), and noni leaves (Morinda citrifolia), in increasing the immune parameters of common carp (Cyprinus carpio L.). This research was conducted using a one-factor completely randomized design, consisting of experimental controls (commercial feed without phytoimmunostimulants = T0), and commercial feed which was supplemented with mango leaves (T1), guava leaves (T2), and noni leaves (T3). These were used in 3 replicate experiment in common carp that had been reared in floating net cages in the Koto Panjang PLTA Reservoir. Fish in groups of 100 were fed at 5% of body weight per day for 60 days with feed supplemented with 1.5 g of plant material/100g of diet. The parameters observed were erythrocyte and leukocyte profile and survival rate. The results showed that the addition of plant leaves to the feed significantly increased the profile of erythrocytes of common carp (P<0.05) with the best result resulting from supplementation with guava leaves. Here, the hematological profiles were erythrocytes (1.82-1.97 x106 cells/mm³), hemoglobin (8.53-9.2 g/dL), hematocrit (35.67-39.67%,) total leukocytes )3.21-3.87 x104 cells/mm³), phagocytic index (21.33-27.00%), lymphocytes (83.33-84.33 %), monocytes (8.00-9.33%), neutrophils (7.33-7.67%), blood glucose (1.67-104 mg/dL) and survival rate (95.67%).