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Table 1 Grouping of diseased cows by diagnosis and blood serum concentration of calcium (S-tCa) and β-hydroxybuturate (BHBA)

From: Low cortisol levels in blood from dairy cows with ketosis: a field study

     

AVERAGE1 (95% CONFIDENCE INTERVAL) CONCENTRATION

Group

Number of cows

Clinical diagnosis

Lactation number, median (range)

Production Cycle2, median (range)

S-tCa mmol/l

BHBA mmol/l

IK

7

Inappetance and ketosis, BHBA > 1.5 mmol/l

2

(1;6)

26

(22;50)

2.2

(2.0;2.4)

4.5

(2.9;6.9)

I

5

Inappetance, BHBA < 1.5 mmol/l

5

(2;6)

2

(0;200)

2.1

(1.4;2.7)

0.9

(0.6;1.5)

MA

7

Mastitis

4

(2;6)

60

(3;250)

2.3

(1.8;2.8)

0.6

(0.4;0.9)

ME

7

Metritis

4

(2;4)

4

(3;14)

2.1

(1.7;2.5)

1.4

(0.7;2.5)

PP

12

Parturient paresis S-tCa < 1.25 mmol/l

5

(2;8)

1

(0;60)

0.9

(0.8;1.0)

0.7

(0.5;0.9)

R

11

Recumbent cows, S-tCa > 1.25 mmol/l, treated with Ca. including prolapsed uterus, diarrhoea

4

(1;8)

2

(-1;200)

1.6

(1.4;1.9)

0.5

(0.3;0.9)

O

8

Others, including laminitis, tetany, vagus indigestion, "cough", no diagnosis, lymphadenitis

2

(1;5)

55

(1;180)

2.2

(2.0;2.4)

0.8

(0.3;2.3)

  1. 1Geometric means for BHBA, i.e. back-transformed from a logarithmic scale
  2. 2Days post partum