Table 2. Latex agglutination test for identifying Streptococcal groups (A, B, C, D, F, and G) of bacteria isolated from Tilapia and V. Koi fishes.
| Species of fishes | Type of tissues selected for the isolation of Streptococcus spp. | Lancefield grouping of Streptococcus spp using streptococcal antigen grouping kit | Interpretation of sero-typing of the fish isolates of Streptococcus spp | |||||
|---|---|---|---|---|---|---|---|---|
| Group A | Group B | Group C | Group D | Group F | Group G | |||
| Tilapia | Liver | − | + | − | − | − | − | GBS |
| Kidney | − | + | − | − | − | − | GBS | |
| Brain | − | + | − | − | − | − | GBS | |
| V. Koi | Liver | − | + | − | − | − | − | GBS |
| Kidney | − | + | − | − | − | − | GBS | |
| Brain | − | + | − | − | − | − | GBS | |
+ indicates positive agglutination; − indicates negative agglutination; GBS indicate group B Streptococcus.