Statistical Analysis
All data are expressed in terms of mean ± standard error (SE). Different parameters were analyzed by one-way analysis of variance (ANOVA), where significant differences were found, a Tukey test was performed. All statistical analysis was performed using the SPSS version 13.0 for Windows.
Results
The yield of evaporated dried extracts based on dry weight basis with methanol as organic solvent was 6.5%. The methanol extract was found to contain steroids, alkaloids, soluble starch, tannins, saponins and flavonoids. The methanolic extract showed a free radical-scavenging activity (AAR) of 0.64±0.009.
The weight gain of tilapia fed diets supplemented with Basella extract (9.8±1.2 g) was significantly higher (P0.05) in weight gain (9.1±0.9 g) from both the treatment groups (Table 1). The BAS group showed the highest final individual mean body weight (49.9±1.9 g), final individual length (14.3±0.2 cm) and SGR (0.62±0.1). However, no significant difference (P>0.05) was observed for these growth parameters and HSI as well, among the three groups of fish (Table 1).
Both GEN and BAS groups showed significantly higher (P0.05) in immunoglobulin content between the three groups of
fish (Table 2). The phagocytic activity of the BAS group is significantly higher (P