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Table 5 P-values, estimates, OR’s and CI’s for all explanatory variables for play and non-nutritive sucking behaviour

From: The effect of age when group housed and other management factors on playing and non-nutritive sucking behaviour in dairy calves: a cross sectional observational study

 

Play

Non-nutritive sucking

P-value

Estimate

OR

95% CI

P-value

Estimate

OR

95% CI

Age when grouped

0.72

− 0.009

0.99

[0.94; 1.05]

0.44

− 0.03

0.98

[0.92;1.05]

Age when filmed

0.003

− 0.04

0.97

[0.93; 0.99]

0.15

0.02

1.02

[0.99; 1.05]

Age difference in group

0.93

− 0.004

0.99

[0.95; 1.04]

0.65

0.009

1.009

[0.97; 1.06]

Group size

0.41

− 0.13

0.88

[0.63; 1.18]

0.13

0.24

1.27

[0.95; 1.73]

Space per calf

0.09

0.25

1.29

[0.97; 1.80]

0.72

0.07

1.07

[0.77; 1.50]

Sex

0.77

− 0.18

0.84

[0.28; 2.43]

0.93

0.05

1.05

[0.35; 3.23]

Sickness

0.19

− 0.84

0.43

[0.10; 1.34]

0.88

0.12

1.13

[0.24; 4.49]

Organic/conventional farm

0.50

0.37

0.69

[0.26; 2.02]

0.35

− 0.60

0.55

[0.12; 2.07]

Regrouping

0.06

− 0.97

0.38

[0.13; 1.09]

0.96

0.03

1.03

[0.31; 3.84]

Indoor / outdoor rearing

0.34

− 0.58

0.56

[0.16; 1.80]

0.79

0.18

1.19

[0.27; 4.42]

Dry teats

0.11

0.81

2.24

[0.89; 6.90]

0.27

− 0.68

0.51

[0.14; 1.46]

Milk allocation method

 Trough

–

0

1

–

–

0

1

–

 Drinker bucket with teat

0.17

− 1.55

0.21

[0.04; 0.97]

0.02

− 2.90

0.06

[7.90e−18; 0.28]

 Bowl

0.67

− 0.42

0.66

[0.10; 3.75]

0.57

0.45

1.57

[0.36; 11.46]

  1. P-values, estimates, OR and 95% CI for OR from the logistic regression analyses of the association between the two response variables (play and non-nutritive sucking) and the 12 explanatory variables. Non-significant P-values, OR and CI are noted from immediately before the explanatory variable was dropped based on backwards elimination. Significant P-values are marked in italic. For milk allocation method, ‘Trough’ is the reference to which ‘Drinker bucket with teat’ and ‘bowl’ is compared
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Acta Veterinaria Scandinavica

ISSN: 1751-0147