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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***