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Table 5 Haematological and immunological parameters (mean ± SD) after 96 h challenged with S. iniae of 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)

15.58 ± 2.82a

21.99 ± 1.38a

13.45 ± 2.71b

96.50 ± 4.16c

27.45 ± 6.14c

0.30 ± 0.02c

BS

13.08 ± 2.26a

28.79 ± 3.32a

18.45 ± 2.78a

253.37 ± 6.11b

36.50 ± 3.49b

0.59 ± 0.06b

BF

12.90 ± 5.03a

29.46 ± 7.82a

20.26 ± 1.57a

327.83 ± 6.38a

47.60 ± 4.50a

0.86 ± 0.07a

MS

14.79 ± 2.20a

30.29 ± 7.83a

21.06 ± 2.65a

323.57 ± 3.04a

39.00 ± 9.05a,b

0.72 ± 0.03a,b

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