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Table 6 Linear regression parameters for the relationship of concentration of free carnitine in liver biopsy samples (nmol/g wet weight) as predictor variable with different metabolic parameters of dairy cows in the transition period and at different stages of lactation as response variables

From: Expression of genes involved in hepatic carnitine synthesis and uptake in dairy cows in the transition period and at different stages of lactation

Response variable

 

3 wk prepartum

1 wk postpartum

5 wk postpartum

14 wk postpartum

Plasma NEFA (μmol/L)

Intercept

152.7

285.7

115.7

81.4

 

Slope

-1.17

10.2

5.86

4.66

 

R2

0.29

0.64

0.38

0.26

 

P-value

0.015

< 0.001

0.008

0.035

Liver triglyceride (mg/g wet weight)

Intercept

3.07

30.5

44.1

3.81

 

Slope

0.04

-0.14

0.65

-0.05

 

R2

0.15

0.09

0.01

0.09

 

P-value

0.112

0.291

0.673

0.305

Plasma BHBA (μmol/L)

Intercept

562.8

605.3

603.7

503.3

 

Slope

-1.84

1.43

4.56

0.60

 

R2

0.13

0.02

0.03

0.00

 

P-value

0.113

0.621

0.505

0.907