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Table 6 Haematological and immunological parameters (mean ± SD) after 96 h challenged with A. hydrophila in hybrid red tilapia

From: Haemato-immunological responses and effectiveness of feed-based bivalent vaccine against Streptococcus iniae and Aeromonas hydrophila infections in hybrid red tilapia (Oreochromis mossambicus × O. niloticus)

Groups

Hours after

Haematological parameters

Immunological parameters

MCH

(pg)

MCHC

(g/dl)

Haematocrit

(%)

Lysozyme activity (unit/ml)

Phagocytic activity (%)

Antibody level

(IgM) (450 nm)

Unvaccinated

96 (hpi)

15.17 ± 0.65a

20.00 ± 1.75a

12.85 ± 1.39b

97.84 ± 4.24d

26.39 ± 5.50b

0.30 ± 0.01c

BS

14.75 ± 0.81a

23.15 ± 3.79a

18.38 ± 1.01a

235.54 ± 6.84c

37.15 ± 2.96a,b

0.53 ± 0.08b

BF

15.36 ± 2.05a

19.38 ± 3.04a

19.45 ± 1.12a

323.07 ± 4.59a

48.04 ± 6.61a

0.75 ± 0.04a

MA

14.97 ± 1.52a

22.67 ± 3.03a

16.59 ± 2.72a

301.03 ± 5.41b

47.07 ± 7.45a

0.65 ± 0.04a

  1. a-dMeans within the same column shows a significantly different effect (P < 0.05)