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

This study determined the effectiveness of mango leaves (<em>Mangifera indica</em>), guava leaves (<em>Psidium guajava</em>), and noni leaves (<em>Morinda citrifolia</em>), in increasing the immune parameters of common carp (<em>Cyprinus carpio </em>L.).<strong> </strong>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<strong>. </strong>The results showed that the addition of plant leaves to the feed significantly increased the profile of erythrocytes of common carp (P&lt;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%).