Table 2 Percent of erythrocytes/leucocytes of different concentrations of the S. agalactiae injection compared with the control (PBS) under the blood smear technique at 40x microscopic performance for Nile tilapia

Erythrocytes (x10³ cell)

0.70 ± 0.27

0.79 ± 0.11

0.79 ± 0.29

0.97 ± 0.43

0.83 ± 0.47

0.89 ± 0.24

Lymphocytes, %

0.66 ± 0.56^b

0.43 ± 0.34^b

1.52 ± 1.01^a

1.87 ± 0.83 ^a

1.93 ± 0.73 ^a

2.24 ± 1.61 ^a

Neutrophils, %

0.20 ± 0.18^c

0.25 ± 0.15^c

0.28 ± 0.17^c

0.82 ± 0.81^b

0.84 ± 0.56^b

1.75 ± 0.50^a

Monocytes, %

0.15 ± 0.19^b

0.99 ± 0.47^a

0.99 ± 0.73^a

1.15 ± 0.94^a

1.58 ± 0.83^a

1.61 ± 2.17^a

Thrombocytes, %

0.33 ± 0.19^ab

0.51 ± 0.39^b

0.34 ± 0.16^ab

0.27 ± 0.17^a

0.22 ± 0.14^a

0.22 ± 0.15^a