Table 2 Linear mixed model analysing management factors in correlation with calf losses

(Intercept)

0.89

Time of colostrum collection

 • Less than 2 h

 • 2 to 4 h

 • Over 4 h

Reference

-0.10

-0.20

-0.27–0.07

-0.43–0.02

0.227

0.071

Quantity of colostrum given

 • 1 to 2 L

 • More than 2 L

Reference

-0.03

-0.19–0.13

0.690

regularly occurring respiratory diseases

 • Yes

 • No

Reference

-0.10

-0.25–0.05

0.180

regularly occurring diarrhoea

 • Yes

 • No

Reference

-0.07

-0.22–0.08

0.383

Dust as cause of respiratory diseases

 • yes

 • No

Reference

-0.25

-0.41 – -0.08

0.005

Trough teat replacement

 • severe wear

 • minor indications of wear

Reference

-0.21

-0.35 – -0.07

0.003

Provision of dam-sourced colostrum

 • Yes

 • No

Reference

0.22

0.06–0.39

0.007

Mortality due to diarrhoea

0.03

Mortality due to lung disease

0.01

Mortality due to navel disease

0.06

Whole-milk troughs for suckling calves in group housing

 • Yes

 • No

Reference

0.03

-0.20–0.25

0.816

Dung removal in individual housing

 • Less often

 • Up to every 5 days

Reference

0.20

-0.02–0.43

0.076

Dung removal in group housing

 • daily

 • every two days

 • every 2–5 days

 • less often

Reference

-0.02

-0.15

0.07

-0.35–0.31

-0.49–0.19

-0.22–0.35

0.904

0.375

0.651

Disinfection of group housing

 • after each cleaning

 • before every new occupancy

 • less often

 • never

Reference

0.03

0.19

0.08

-0.16–0.21

-0.01–0.39

-0.21–0.37

0.783

0.068

0.584

Assessment of body condition

 • subjectively

 • objectively

Reference

-0.20

-0.37 – -0.03

0.025