Table 1 Main characteristics and blood biochemical parameters in normal control cows (NC), cows with subclinical ketosis (SK), and cows with clinical ketosis (CK)

Number

24

33

24

Days in milk

12±5

14±6

16±6

Age

3±1

3±1

4±2

Parity

2±1

2±1

2±1

MY (kg/d)

32.1±7.8^Aa

35.2±7.2^b

37.0±6.2^Cc

BCS

3.05±0.31^a

3.11±0.35 ^ab

3.16±0.37^b

Glc (mmol/L)

1.90 ± 0.70^A

2.70±0.63^B

3.37±0.58^C

BHBA (mmol/L)

2.49±0.60^A

1.22±0.17^B

0.82±0.12^C

CHO (mmol/L)

2.36±0.70

2.45±0.68

1.98±0.80

AST (U/L)

113.13±23.74

113.29±27.46

102.58±28.58

TG (mmol/L)

0.13±0.40

0.16±0.50

0.13±0.57