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Table 1 Medians and frequency distributions of the components of the leukogram in cows with acute toxic mastitis (ATM) and in clinically healthy controls

From: Haematological findings in 158 cows with acute toxic mastitis with a focus on the leukogram

Variable

Finding

Controls

ATM

Leukocytes (/µL)

Median

8000 (n = 168)

4300 (n = 158)

Normal (5100–13,300)a

Decreased (600–5099)

Increased (13,301–29,100)

92.9% (n = 156)

4.1% (n = 7)

3.0% (n = 5)

29.8% (n = 47)

60.1% (n = 95)

10.1% (n = 16)

Segmented neutrophils (/µL)

Median

2598 (n = 168)

860 (n = 128)

Normal (1700–6000)

Decreased (20–1699)

Increased (6001–18,070)

77.9% (n = 131)

17.3% (n = 29)

4.8% (n = 8)

14.1% (n = 18)

69.5% (n = 89)

16.4% (n = 21)

Band neutrophils (/µL)

Median

0 (n = 168)

530 (n = 128)

Normal (0–200)

Increased (201–12,670)

99.4% (n = 167)

0.6% (n = 1)

22.7% (n = 29)

77.3% (n = 99)

Metamyelocytes (/µL)

Median

0 (n = 168)

0 (n = 128)

Normal (0)

Increased (1–13,301)

100% (n = 168)

0%

75% (n = 96)

25% (n = 32)

Eosinophils (/µL)

Median

582 (n = 168)

50 (n = 128)

Normal (100–1200)

Decreased (0–99)

Increased (1201–2280)

85.1% (n = 143)

1.8% (n = 3)

13.1% (n = 22)

32.8% (n = 42)

66.4% (n = 85)

0.8% (n = 1)

Basophils (/µL)

Median

70 (n = 168)

0 (n = 128)

Normal (0–200)

Increased (201–339)

97% (n = 163)

3% (n = 5)

100% (n = 128)

0%

Monocytes (/µL)

Median

336 (n = 168)

155 (n = 128)

Normal (100–700)

Decreased (0–99)

Increased (701–2170)

94% (n = 158)

4.2% (n = 7)

1.8% (n = 3)

44.6% (n = 57)

40.6% (n = 52)

14.8% (n = 19)

Lymphocytes (/µL)

Median

3998 (n = 168)

1550 (n = 128)

Normal (1800–8100)

Decreased (400–1799)

Increased (8101–8721)

97.0% (163)

1.8% (n = 3)

1.2% (n = 2)

39.8% (n = 51)

60.2% (n = 77)

0%

  1. The medians and frequency distributions of all components of the leukogram differ significantly between the two groups (P < 0.01, ANOVA, Mann–Whitney U test)
  2. aReference intervals for all variables: Wood and Quiroz-Rocha[18]