Correlation of Streptococcus agalactiae concentration on immune system and effective dose of inactivated vaccine for Chitralada 3 strain Nile tilapia (Oreochromis niloticus) in Thailand

Table 1 The survival rate following injections of varying concentrations of S. agalactiae in Nile tilapia

Treatment	Cumulative mortality (%)	The survival rate of different S. agalactiae concentrated injections (%)
Control (PBS)	0.00 ± 0.00^c	100.00 ± 00^a
10⁴ CFU/fish	58.41 ± 6.29^a	4.44 ± 3.858^d
10⁶ CFU/fish	65.56 ± 3.065^a	6.67 ± 0.00^d
10⁸ CFU/fish	21.75 ± 4.11^b	62.22 ± 7.70^ab
10¹⁰ CFU/fish	25.08 ± 8.39^b	53.33 ± 13.33^b

*The data is presented as mean ± standard deviation (n = 3 fish). Distinct superscript letters within the same row signify statistically significant differences (p < 0.05) among the treatments, determined through one-way ANOVA followed by Duncan’s multiple range test

ISSN: 1746-6148