Group

Immunizing dose

Nos. of fish

Nos. of dead fish

Mortality (%)

RPS (%)

P1

1 μg/g

96

12

12.50

87.66

P3

3 μg/g

113

21

18.58

66.80

P5

5 μg/g

106

19

17.90

68.01

C

Control

109

61

55.96

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