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Table 4 Whole blood leucocyte counts (× 103 cells) in vaccinated R+ and R− chicken lines measured at 12 weeks of age

From: Assessment of trade-offs between feed efficiency, growth-related traits, and immune activity in experimental lines of layer chickens

  Heterophils Monocytes T cells B cells CD4+ helper T cells CD8α+ T cells CD8α+γδ cytotoxic T cells CD8α+γδ+ T cells γδ+ T cells
Line/sexa
 R+ m 9.1 ± 0.8a 3.3 ± 0.3a 23.8 ± 4.0 0.9 ± 0.4 8.2 ± 0.1 4.6 ± 0.5 3.5 ± 0.4 1.3 ± 0.1 6.0 ± 0.5
 R+ f 7.5 ± 0.6a 2.3 ± 0.2ac 26.9 ± 3.7 1.1 ± 0.3 9.6 ± 0.8 4.7 ± 0.4 3.8 ± 0.3 1.1 ± 0.1 6.1 ± 0.4
 R− m 3.2 ± 0.6b 1.3 ± 0.2b 22.0 ± 3.2 0.6 ± 0.3 10.5 ± 0.7 5.6 ± 0.4 4.6 ± 0.3 1.1 ± 0.1 5.9 ± 0.4
 R− f 3.4 ± 0.6b 1.6 ± 0.2bc 28.6 ± 3.3 1.2 ± 0.3 10.7 ± 0.8 5.0 ± 0.4 4.0 ± 0.3 1.0 ± 0.1 6.1 ± 0.4
p-valueb
 Line *** *** 0.9 0.9 * 0.1 0.09 0.2 0.9
 Sex 0.3 0.3 * * 0.4 0.4 0.6 0.2 0.8
 Line × sex 0.1 ** 0.3 0.4 0.3 0.3 0.1 0.8 0.9
  1. Within a column, least square means with different superscripts differ significantly (p < 0.05)
  2. m = male; f = female
  3. aValues are least square means (± SE) of cell counts per µL of whole blood
  4. bWald Chi-square test was significant at p < 0.05*; p < 0.01**; p < 0.001***