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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)