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Table 2 Results of the regression model where serum Immunglobulin G (g/L) was used as the response variable

From: A cross-sectional study of suckling calves’ passive immunity and associations with management routines to ensure colostrum intake on organic dairy farms

Parameter

Class or mean (SD)

n

Estimate

SEM

95% CI intervals

P value

Intercept

 

141

13.82

1.38

6.474;13.801

< 0.001

Method of ensuring colostrum intake

Routine bottle

50

0

   

Non-routine bottle

26

2.86

2.38

− 1.671;7.415

0.232

Non-routine visual assessment

7

5.28

3.94

− 2.300;12.797

0.183

Routine visual assessment

45

4.47

2.01

0.644;8.306

0.028

Non-routine assistance

13

0.27

3.05

− 5.609;6.061

0.939

Colostrum IgG*

39.4 (26.44)

141

0.09

0.03

0.031;0.156

0.005

  1. *Colostrum IgG centred around the mean