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Table 5 Effects of dietary treatments on haematological parameters of laying hens at 36 and 52 weeks of age

From: Performance, biochemical and haematological responses, and relative organ weights of laying hens fed diets supplemented with prebiotic, probiotic and synbiotic

Haematological parameters

Hen age (weeks)

36 weeks of age

52 weeks of age

Control

PRE

PRO

SYN

Control

PRE

PRO

SYN

Lymphocyte (%)

33.16 ± 1.55b

41.22 ± 0.70a

40.16 ± 1.13a

41.70 ± 1.25a

28.87 ± 0.79b

32.59 ± 2.23a

31.97 ± 2.45a

33.96 ± 1.94a

Heterophil (%)

58.18 ± 1.94a

49.75 ± 1.52b

49.91 ± 1.17b

47.34 ± 1.45b

60.87 ± 1.18a

56.79 ± 1.81b

57.74 ± 1.06b

55.46 ± 1.27b

H/L ratio

1.65 ± 0.17a

1.17 ± 0.06b

1.11 ± 0.03b

1.07 ± 0.15b

2.11 ± 0.09a

1.75 ± 0.18b

1.82 ± 0.17b

1.64 ± 0.14b

RBC (× 1012/L)

2.34 ± 0.13

2.38 ± 0.21

2.33 ± 0.15

2.49 ± 0.14

2.13 ± 0.07

2.14 ± 0.10

2.21 ± 0.05

2.22 ± 0.14

Hb (g/L)

118.56 ± 5.97

126.67 ± 6.66

115.50 ± 5.64

122.17 ± 2.26

112.00 ± 2.46

113.13 ± 1.75

112.92 ± 2.91

115.71 ± 1.70

PCV (L/L)

0.27 ± 0.01

0.27 ± 0.01

0.27 ± 0.01

0.27 ± 0.01

0.25 ± 0.02

0.23 ± 0.01

0.24 ± 0.01

0.26 ± 0.01

MCV (fL)

120.54 ± 1.78

126.50 ± 1.53

118.91 ± 2.60

120.42 ± 6.55

112.55 ± 1.22

113.42 ± 1.23

112.57 ± 1.65

115.73 ± 3.07

MCHC (g/L)

420.77 ± 18.77

444.01 ± 23.12

439.77 ± 6.49

440.17 ± 5.74

456.38 ± 5.32

470.98 ± 14.75

458.48 ± 6.54

460.35 ± 13.39

WBC (× 109/L)

23.57 ± 2.19

23.92 ± 1.02

24.76 ± 1.78

24.57 ± 1.67

23.85 ± 3.87

24.88 ± 4.27

24.13 ± 4.70

25.28 ± 2.20

Thrombocyte (× 109/L)

24.49 ± 2.50

27.58 ± 3.72

24.83 ± 1.25

28.07 ± 0.78

21.60 ± 2.44

24.73 ± 4.18

25.78 ± 2.49

25.32 ± 3.31

Monocyte (%)

3.50 ± 0.50

3.27 ± 0.75

3.67 ± 1.26

4.67 ± 0.58

4.03 ± 0.19

3.97 ± 0.62

3.81 ± 0.47

3.83 ± 0.53

Eosinophil (%)

2.27 ± 0.93

2.67 ± 0.76

3.00 ± 0.87

3.17 ± 0.76

3.20 ± 0.42

3.25 ± 0.46

3.38 ± 0.92

3.57 ± 0.54

Basophil (%)

2.90 ± 0.66

3.10 ± 0.53

3.27 ± 0.25

3.13 ± 0.65

3.04 ± 0.53

3.40 ± 0.44

3.10 ± 0.78

3.19 ± 0.55

  1. H/L heterophil/lymphocyte, RBC red blood cell, Hb haemoglobin, PCV packed cell volume, MCV mean corpuscular volume, MCHC mean corpuscular haemoglobin concentration, WBC white blood cell
  2. Data represent mean ± SD of four replicates of three hens each
  3. a,bMeans within a row at a particular age with different superscripts differ significantly (P < 0.05)
  4. Control, basal diet; PRE, basal diet +1% IMO; PRO, basal diet +0.1% PrimaLac®; SYN, basal diet +1% IMO + 0.1% PrimaLac®